79xx & 280 VBIOS Optimization Index

	A	B	C	D
1	Updated up to Page 44 - Please doble check in the forum for possibles mistakes.
2
3	It is important to know the ACTUAL type of the memory your card specimen uses. It is completely irrelevant if some cards seen in the reviews were using Hynix or Elpida ICs.
4	The memory type can change even between different batches.
5	If you don't have dual bios post here a copy of your bios for modification. Use the below links at your own risk. This is just a collection of links.
6	If VRAM is not specified it is unknown, use VBE7 to check what the rom supports.
7
8	Abreviations
9	AFR = Hynix AFR only.
10	Custom = A customised build made specifically for a person (specifications can be seen in the original post). Elpida or
11	E = Elpida only.
12	L = Legacy bios (in case same version exists in UEFI also)
13	U = UEFI bios (in case same version exists in legacy also).
14	MFR = Hynix MFR only
15	NT = No Throttle
16
17	BIOS Site & Name
18	Legacy bioses have 64KB effective size despite the 128KB "original" size.
19	The 64-128KB is just filled with zeros unless the bios is a UEFI file.
20	Atiflash & GPU-Z for example dump the content of the whole flash IC.
21	The flash IC on Radeons is 128KB or 256KB (XFX) in size, so there will be atleast 64KB of meaningless data in case the bios is not UEFI.
22	Also the bios name is completely irrelevant, you can name the bios.bin file to siob.nib for example and it will still work fine as long as you don't modify the contents of the binary.
23
24	Frequencies
25	These optimised bioses are calibrated in way that the latency will remain roughly the same if you use the exact frequency ranges I told. These bioses have the lowest latency at 1500MHz preset (both Elpida and Hynix) so I would advice to use it.
26
27	E.G.
28	1500.0MHz (uses 1500MHz preset) - Bandwidth 288GB/s
29	1501.0MHz (uses 1625MHz preset) - Bandwidth 288.192GB/s but worse latency and therefore performance
30	1625.0MHz (uses 1625MHz preset) - Bandwidth 312GB/s, roughly the same latency as on 1500MHz preset
31
32	Scrypt does not require the bandwidth but latency instead.
33	That is the reason you want to use exact frequencies only!
34
35	GPU Threads
36	Change "gpu-threads" to 2 and see if that makes any difference (it should).
37	Without the fixed bios "gpu-threads" = 2 (or -g 2) should not work, it actually should retard the performance.
38	However after the fix the threads need to be 2.
39
40	Brands
41	TUL = Club3D, PowerColor and Vertex3D.
42
43	Memory Types
44	The stuff are different between other; Hynix AFR, Hynix MFR, Elpida AFR y Elpida MFR. If you install the BIOS for other memory different than yours it may not work.

	A	B	C	D	E	F
1	https://litecointalk.org/index.php?topic=12369.0 - ALL BIOS HERE https://files.fm/u/ruqnp46k
2	Please see the comments in the other section of this doc
3	GPU	Memory	Memory Model	Notes	Optimized BIOS (use this)	Original BIOS

4	102C3862000 00001 P/N	Hynix	H5GQ2H24AFR	There appears to be AFR cards with botched configuration too. You should see a healthy boost at 1125MHz MEMCLK and above, peaking at 1500MHz (exact).	https://www.dropbox.com/s/k8aq3lb74pbl5sx/MBA_C862000-004_K2_AGR.zip	https://www.mediafire.com/?tj1g3vposcyx9v5
5	AMD Reference 7970	Hynix	H5GQ2H24MFR	Rebuilt, recompiled and fully optimised for Hynix MFR and Elpida.	https://www.dropbox.com/s/hxbsr919unw6xs2/MBA_C860100-101_K2_AGR.zip	https://www.dropbox.com/s/tpzbjfb7s33o2ki/Tahiti.rom
6	Asus 280x DC2TOP	Hynix AFR		Memory is Hynix H5GQ2H24AFR	https://www.dropbox.com/s/8w0q36n7x6ttnmt/ASUS_C386_PI3-100_AGR.zip	https://www.dropbox.com/s/gaqhmvlyyvy24bg/Asus_r9280xDC2-TOP.rom
7	Asus 7950	Hynix			https://www.dropbox.com/s/o0o8ad6o81njisn/ASUS_7950_PI-101_AGR.zip
8	ASUS 7950 DirectCU II Top V2	Hynix & Elpida		ASUS_PI-101_AGR = Hynix MFR cards updated BIOS. ASUS_PI-104_AGR = Elpida cards updated BIOS. Noticed a small improvement in hash rates on a lowered core clock speed 1000/1575, however not much difference at my standard 1100/1575 (where I get 660-690 across the cards) @ 1.087v.	https://www.dropbox.com/s/mhs24gf2oidb92z/HD7950-DC2T-3GD5-2DIS_Hynix_Elpida.zip
9	ASUS DC2T 7970	Hynix & Elpida		Fully revamped and optimised bios for Hynix MFR and Elpida. All of the bioses were identical.	https://www.dropbox.com/s/gg90mjb960s788t/ASUS_PI_U2-102_AGR.zip
10	ASUS HD7950-DC2T-3GD5-V2	Elpida			https://www.dropbox.com/s/iiy5vaao32n0aj2/ASUS_PI_102X_AGR.zip
11	Asus HD7970 Matrix Platinum			Can't see any major issues with your bios, however Matrix Platinum cards have very high engine clock and therefore a very high PPI. This might help a bit for 1050MHz+ engine clocks. The peak performance should be available at >1500MHz MEMCLK, the latency is still tighter at that region. Please try "exact" MEMCLK values which will yield a matching frequency preset (e.g. 1250MHz, 1375MHz, 1500MHz, 1625MHz).	https://www.dropbox.com/s/fzick1qybue4wz6/ASUS_280X_X3_P_AGR.zip
12	Club 3D 280x	Hynix & Elpida		Optimised both Hynix and Elpida	https://www.dropbox.com/s/r75j4ua7x5tnb2b/TUL_R19FA_XL4CU_AGR.zip
13	Diamond 280X D53GXOC	Elpida		It seems that the card sold as Diamond R9280XD53GXOC is actually made by HIS (or vice versa). The same card is sold also as HIS R9 280X iPower IceQ X² Boost Clock.	https://www.dropbox.com/s/1ekp7276ixh4oca/HIS_SV6G03-105_AGR.zip	http://www.megafileupload.com/en/file/486679/R9280XD53GXOC-rar.html
14	Gigabyte 280X GV-R928XOC-3GB	Elpida		Timings optimized, not much to be done there as it is Elpida and Gigabyte has altered the default configuration already.	https://www.dropbox.com/s/rp4h0wsjfs6bcga/GV-R928XOC-3GB_F31_AGR.zip
15	Gigabyte 7950 GV-R795WF3-3GD	Elpida & Hynix		Custom BIOS [Robnitro]	https://www.dropbox.com/s/5p3oqtmas4urhv1/GV_R795WF3-3GD-FT0_RN-EH_AGR.zip
16	Gigabyte 7950 WF3	Hynix			https://www.dropbox.com/s/6r123pt0zkfjuem/GV-R795WF3-3GD-F43_AGR.zip
17	Gigabyte 7950 WF3	Hynix			https://www.dropbox.com/s/p7gfjn60565tdqp/GV-R795WF3-3GD-F43_AGR_MFR.zip
18	Gigabyte 7970	Hynix		There is a special "K2" suffix for this one. It is experimental, based on the newest optimisations (not a bad thing). Let me know how it works, and please do remember to use the "-g 2" switch in cgminer.	https://www.dropbox.com/s/lcyxyz6f0qgce65/GV-R797OC-3GD_F72_AGRK2_AFR.zip	https://drive.google.com/file/d/0B9PVCFRqYTvJanlMZy16eEtqSnM/edit?usp=sharing
19	Gigabyte 7970	Elpida	EDW2032BBBG		https://www.dropbox.com/s/xi6gkx8rerf9m22/GV-R797OC-3GD_F80_AGR.zip	https://mega.co.nz/#!QMQBlYAT!WgLmVh6zKyFRsxjd1HfslRVrDPwfjzrmMxnI3JAIgxs
20	Gigabyte 7970 GV-R7970D5-3GD-B	Hynix & Elpida			https://www.dropbox.com/s/oisiszlwdsik087/C3860100-100_AGR.zip
21	Gigabyte 7970 GV-R797OC-3GD/GV-R7970C-3GD	Hynix			https://www.dropbox.com/s/zh7gi2g4nrtrtea/GV-R797OC-3GD-F72_AGR.zip
22	Gigabyte 7970 GV-R797OC-3GD/GV-R7970C-3GD	Hynix			https://www.dropbox.com/s/8cgug3rddw8bps9/GV-R797OC-3GD-F1_AGR.zip
23	Gigabyte 7970 GV-R797TO-3GD			Here is the optimised version based on the original.	https://www.dropbox.com/s/r15ew29exsxvhmx/GV-R797TO-3GD-F62_AGR.zip
24	Gigabyte GV-R797TO-3GD.F70	Elpida		Elpida optimised, 1250MHz and above (lowest latency at 1500MHz)	https://www.dropbox.com/s/4erdm8nuj21wdxd/GV-R797TO-3GD_F70_AGR.zip	https://mega.co.nz/#!lEJz2I4Z!Xd6DjRP0a4ouXSQQgJOBmHtfbsRFf5CeOsdXr_J35h4
25	Gigabyte 280x	Elpida		The card features CHL8228 VRM controller so the voltage cannot really be locked.	https://www.dropbox.com/s/nhihlvrkcujl584/GV-R928XOC-3GD_F60_AGR.zip	https://www.dropbox.com/s/7c6mh5c1izjefdz/Gigabyte%20280x%203GOC%20elpida.bin?m=
26	HIS 7950				https://www.dropbox.com/s/1o2hkqj2yx9bfcs/HIS_SV5G01-005_AGR.zip
27	HIS IceQ 7950 H795Q3G2M	Hynix & Elpida		HIS, optimised even further for Elpida. Hynix AFR als supported. A faulty memory type detection fixed, please check again the actual memory type with this bios.	https://www.dropbox.com/s/hduwsz9xetp5nke/HIS_SV5G01-005_K2_AGR.zip	https://lbr.id.lv/coin/mem/HIS.HD7950.3072.121205.7z
28	HIS iceQ 7950 Turbo H795QC3G2M	Hynix & Elpida	H5GQ2H24AFR	Further Elpida optimisations, tuned for MFR also.	https://www.dropbox.com/s/dnoik9rsctuhn7f/HIS_SV5G01_005_K2_AGR.zip	Tahiti_his_iceq_7950_original_EDW2032BBBG_H795QC3G2M.zip
29	HIS iceq 7970 H797QM3G2M	Hynix & Elpida	H5GQ2H24AFR		https://www.dropbox.com/s/9a5leqcxzdt8w7p/HIS_SV2G02-105_K2_AGR.zip	https://drive.google.com/file/d/0B_irS6UVmJb4UGY0LVYxcnE4YzA/edit?usp=sharing
30	HIS IceQ Boost Clock H795QC3G2M				https://www.dropbox.com/s/val37rw80wui4bd/HITECH_SV5G01-005_Fix.zip
31	HIS IceQ Boost Clock H795QC3G2M or Diamond R9280XD53GXOC?				https://www.dropbox.com/s/val37rw80wui4bd/HITECH_SV5G01-005_Fix.zip
32	HIS IceQ R9 280x	Hynix			https://www.dropbox.com/s/cu0rmtvu7btdxuq/HIS_SV6G02-005_AGR.zip	https://www.dropbox.com/s/vpqzj0eoq8b9265/His%20r9%20280x.rom
33	HIS SV6G03	Elpida		It seems that the card sold as Diamond R9280XD53GXOC is actually made by HIS (or vice versa). The same card is sold also as HIS R9 280X iPower IceQ X² Boost Clock.	https://www.dropbox.com/s/1ekp7276ixh4oca/HIS_SV6G03-105_AGR.zip	http://www.megafileupload.com/en/file/486679/R9280XD53GXOC-rar.html
34	MSI 7950 OC/BE	Hynix	H5GQ2H24AFR	Optimised, however there wasn't much to be done for AFR. The MFR profile was botched and it was fully rebuilt.	https://www.dropbox.com/s/dsff6y89mc64b8j/MSI_TV276MS_182_AGR.zip	https://dl.dropboxusercontent.com/u/106663695/BIOSMSI7950BEOC_orig113-XXX-XXX.ROM
35	MSI 7970 TF3	Hynix	H5GQ2H24AFR	R7970 TF 3GD5/OC BE. BIOS ver. 015.032.000.004.001364	https://www.dropbox.com/s/2tvql26bnveszq2/MSI_TV277MS_142_AGR.zip	https://mega.co.nz/#!mAIjyTSY!FVi3PDwCy7-LJU5fA4vDrU4MKm83A1sE8x4PVUbQPI0
36	MSI R7970 Lightnings	Hynix		Fully rebuilt, recompiled and optimised bios with addition clock profiles (1625, 1750MHz)	https://www.dropbox.com/s/x9vvm0rm17bx458/MSI_TV278MS_103_AGR.zip
37	MSI R7970-2PMD3GD5	Hynix MFR		Thats the MSI bios recompiled, works on every reference card as long as it is equipped with Hynix MFR. The bios no longer supports Elpida ICs, only MFR. The MFR profile is now complete (contains presets for 1625 & 1750MHz) and the timings were optimized.	https://www.dropbox.com/s/45wuz80u6kd00ts/C3860100_AGR.zip
38	MSI R9 280X GAMING 3G	Elpida		The timings were optimised for both Hynix and Elpida ICs. The card features a CHL8228G VRM controller so there is really no way to lock the voltage. As long as the voltage control is unlocked in AB or Trixx and the card is supported in the first place the voltage will be adjustable.	https://www.dropbox.com/s/nk5kj0xidud5vh5/MSI_280X_Gamer_G77_AGR.zip
39	MSI R9 280X GAMING 3G	Hynix & Elpida		The timings were optimised for both Hynix and Elpida ICs. The card features a CHL8228G VRM controller so there is really no way to lock the voltage. As long as the voltage control is unlocked in AB or Trixx and the card is supported in the first place the voltage will be adjustable.	https://www.dropbox.com/s/aqsj41k6kcw2xeh/MSI_277MEDIA_X77_AGR.zip
40	MSI Twin Frozr 7950OC w/boost	Hynix & Elpida	H5GQ2H24MFR		https://www.dropbox.com/s/zobo2i9ohx5ln93/MSI_V27618S_SB_AGR.zip	http://www.datafilehost.com/d/addd4958
41	Powercolor 280x PowerDuo (TUL)	Hynix & Elpida		Optimised, Hynix & Elpida for the TUL card.	https://www.dropbox.com/s/8c61ne48k2lbwfu/TUL_R19FA_XL4U_AGR.zip
42	Powercolor 7870 XT/LE	Elpida		Optimised the Elpida profile for 1250MHz and above MEMCLK range.	https://www.dropbox.com/s/y0wwzyvq7qek4q0/TUL_R19FE-V11_AGR.zip
43	PowerColor 7950				https://www.dropbox.com/s/p4uj2ax4x8p4ldz/TUL_HD7950_3GBD5-2DHV2_AGR.zip
44	PowerColor 7950				https://www.dropbox.com/s/bhfj7qkbhers2b4/TUL_HD7950_3GBD5-2DHV2_AGR_ELP.zip
45	PowerColor 7950 Stock	Hynix		PowerColor (120116), fully rebuild, recompiled and optimised for Hynix MFR.	https://www.dropbox.com/s/9ns7l5slfz7dwti/TUL_C5117BAG_HI2_AGR.zip	https://lbr.id.lv/coin/mem/PowerColor.HD7950.3072.145273.7z
46	Powercolor 7970			Timings for both Hynix and Elpida tightened up, might yield some extra performance at high engine frequency especially.	https://www.dropbox.com/s/9ww12nfnsi9yyaa/TUL_AX7970-3GBD5-2DHV3_AGR.zip
47	Powercolor 7970	Hynix & Elpida		Fully rebuilt, recompiled and optimised for Hynix MFR and Elpida. New frequency ranges for MFR added also (1625 & 1750MHz).	https://www.dropbox.com/s/ntbr8rm625dcdrg/C3862000-102_AGR.zip	http://www.techpowerup.com/vgabios/125112/Powercolor.HD7970.3072.120628.rom
48	PowerColor 7970 (TUL, PowerColor, Club3D, Vertex3D, etc).				https://www.dropbox.com/s/9ww12nfnsi9yyaa/TUL_AX7970-3GBD5-2DHV3_AGR.zip
49	Powercolor 7970 Reference	Hynix & Elpida			https://www.dropbox.com/s/oisiszlwdsik087/C3860100-100_AGR.zip
50	PowerColor PCS 7950 AX7950 3GBD5-2DHPP	Hynix		PowerColor (145273), fully rebuild, recompiled and optimised for Hynix MFR.	https://www.dropbox.com/s/m4zymum2eu5iou1/TUL_C5117BAF_HI2_AGR.zip	https://lbr.id.lv/coin/mem/PowerColor.HD7950.3072.120116_1.7z
51	Powercolor PCS+ 7950	Elpida	EDW2032BBBG	Should see some boost at 1500MHz.	https://www.dropbox.com/s/jxfrutilqlavjgq/TUL_R19F-V10-103_K2_AGR_E.zip	https://www.dropbox.com/s/pohgowhru336d9n/POWERCOLOR_AX7950-2DHPP.rom
52	Sapphire 280x Dual-X OC UEFI	Elpida	EDW2032BBBG		https://www.dropbox.com/s/lxeob4g0tbdf2kx/Sapphire_E2490U_O46_AGR.zip	https://www.dropbox.com/s/v75itc95jvychh7/Sapphire_Dual-X_OC_UEFI_113-5E2490U-O46.rom
53	Sapphire 280x DualX				https://www.dropbox.com/s/1a6ioguytpjoh4j/5E24900-O46_AGR.zip
54	Sapphire 280x Dualx	Hynix & Elpida		They seem to be pretuned already, but I optimised them still a bit further. Should be usable on both of the cards, Elpida and Hynix AFR are both supported.	https://www.dropbox.com/s/jfmog1a8inexrvy/Sapphire_E24900-O46_AGR.zip
55	Sapphire 280x Dualx	Hynix & Elpida		They seem to be pretuned already, but I optimised them still a bit further. Should be usable on both of the cards, Elpida and Hynix AFR are both supported.	https://www.dropbox.com/s/3v118wu11n8capo/TUL_R19F_V10-103_AGR_FIX.zip
56	Sapphire 280x Toxic	Hynix		Optimised, Hynix for Sapphire.	https://www.dropbox.com/s/3xvw8e1lckdx3uy/Sapphire_E251-T43_AGR.zip
57	Sapphire 280x Vaporx	Elpida		L = Legacy, U = UEFI	https://www.dropbox.com/s/vgfvp1peost0bxd/Sapphire_VXOCBG6A_U42_AGR.zip
58	Sapphire 280x Vaporx	Elpida		L = Legacy, U = UEFI	https://www.dropbox.com/s/eag6qwjr8kxsg27/2104XTLBG6A-V42_AGR.zip
59	Sapphire 280x Vaporx	Hynix		L = Legacy, U = UEFI	https://www.dropbox.com/s/uge8yz8n88ms4cr/2104XTLAFR-V45_AGR.zip
60	Sapphire 280x Vaporx	Hynix		L = Legacy, U = UEFI	https://www.dropbox.com/s/5kvgyof6plquq8h/2104XTLAFR-V46_AGR.zip
61	Sapphire 280x Vaporx	Hynix		L = Legacy, U = UEFI	https://www.dropbox.com/s/tpg7l5o7ifu342a/Sapphire_E251_T03_AGR.zip
62	Sapphire 280x Vaporx	Hynix		L = Legacy, U = UEFI	https://www.dropbox.com/s/7sq0gczfnt2xca7/Sapphire_E21004_LU_Hynix_AGR.zip
63	Sapphire 280x Vaporx	Elpida		L = Legacy, U = UEFI	https://www.dropbox.com/s/fwxlc0fldzsr9zx/Sapphire_E21004_LU_Elpida_AGR.zip
64	Sapphire 78070 XE	Elpida		You might see some boost especially at lower MEMCLKs.	https://www.dropbox.com/s/4gfnyl7lxd1fdc8/Sapphire_E24600-S04_AGR.zip
65	Sapphire 7950 Reference	Hynix & Elpida		Fully recompiled, optimised settings for Hynix and Elpida. Frequency presets also added, 1625MHz and 1750MHz. Sapphire was messed at low frequencies, expect boost at 1250-1500MHz MEMCLK range especially.	https://www.dropbox.com/s/aehubk9i1aa6uoo/C3864000-100_AGR.zip	https://www.dropbox.com/s/4ll2g8x1ckifax5/7950-sapphire-ref-1.rom
66	Sapphire 7950			Fully recompiled, optimised settings for Hynix and Elpida. Frequency presets also added, 1625MHz and 1750MHz. Sapphire was messed at low frequencies, expect boost at 1250-1500MHz MEMCLK range especially.	https://www.dropbox.com/s/e8r6jzrvl2jq64g/Sapphire_E21004-V07_AGR.zip
67	Sapphire 7950	Hynix & Elpida		Fully recompiled, optimised settings for Hynix and Elpida. Frequency presets also added, 1625MHz and 1750MHz. Sapphire was messed at low frequencies, expect boost at 1250-1500MHz MEMCLK range especially.	https://www.dropbox.com/s/wanqk0basmd1p9f/Sapphire_E24900-S41_AGR.zip
68	Sapphire 7950 DualX	Hynix & Elpida		Optimized timings for 1250-1750MHz MEMCLK range, for both Hynix and Elpida.	https://www.dropbox.com/s/3oia1ycb3k0p3vm/Sapphire_E24900-S42_AGR.zip
69	Sapphire 7950 DualX	Hynix & Elpida		Optimized timings for 1250-1750MHz MEMCLK range, for both Hynix and Elpida.	https://www.dropbox.com/s/blxc4fp2rzuxxvo/Sapphire_E20700-S4C_AGR.zip
70	Sapphire 7950 DualX SKU# 11196-01-40G	Hynix & Elpida	EDW2032BBBG	Hynix AFR also supported	https://www.dropbox.com/s/agc7upgvmlswit4/Sapphire_E207200_T47_K2_AGR.zip	https://lbr.id.lv/coin/mem/Sapphire.HD7950.3072.120330.7z
71	Sapphire 7950 Vapor-X	Hynix	H5GQ2H24AFR		https://www.dropbox.com/s/qc0fhw7vx2cjcuv/Sapphire_E21004_V48_AGR.zip	https://www.dropbox.com/s/hum9bzxnfcoccbm/SAPPHIRE_7950_VAPOR-X.rom
72	Sapphire 7950 with boost	Hynix & Elpida		Optimized, Hynix AFR and Elpida.	https://www.dropbox.com/s/6dv51pr3o9qwi1u/1E249100-S41_AGR.zip
73	Sapphire 7970	Hynix & Elpida			https://www.dropbox.com/s/oisiszlwdsik087/C3860100-100_AGR.zip
74	Sapphire 7970	Hynix			https://www.dropbox.com/s/oisiszlwdsik087/C3860100-100_AGR.zip
75	Hynix	Elpida & Hynix		Stock BIOS MFR. On Sapphire, do remember to use the cgminer "-g 2" switch with the modified bios, otherwise there is not much of a difference.	https://www.dropbox.com/s/pfj8bg21g1kxofj/Sapphire_C3860100-100_AGR.zip
76	Sapphire 7970 Dual X (Ref 11197-11)		H5GQ2H24MFR		https://www.dropbox.com/s/c5bq56ptmry31sx/Sapphire_E21001_S05_AGR.zip	https://mega.co.nz/#!jRoihbbS!PN_MWATMQb7G83gB0tyebWFaV_UmsySAgV_slcp48Mc
77	Sapphire 7970 VaporX	Hynix		Sapphire should see a hefty boost as it was completely messed up to begin with.	https://www.dropbox.com/s/iz27w4h0l179v2h/Sapphire_E21000-X0B_AGR.zip
78	SAPPHIRE HD 7970 GHz Edition 6GB GDDR5 VAPOR-X	Hynix		Please note that these changes have never been tried on 6GB memory amount. Since there are twice the amount of GDDR5 ICs the memory controller has to "work" twice as hard. In case it works without issues, you should see a hefty increase right away (+140-150kHash). Let me know if there is any issues with stability or artifacts, I can make it slightly less aggressive then. No improvement reported by Rngkay (original poster).	https://www.dropbox.com/s/ft3dfk93hpnsmia/100351-6GVXSR_AGR.zip
79	SAPPHIRE HD 7970 GHz Edition 6GB GDDR5 VAPOR-X			The memory controller configuration was altered completely. In case it is too much to the MC to take the card may refuse from posting. In case it works but still does not improve the hashrate, it might be because the memory is working in x16 "Clamshell" mode. Normally it operates at x32 mode, but since there are twice the GDDR5 ICs on you card the lanes are also splitted (24x x16 vs. 12x x32 == 384-bit). However even in the worst case you cannot brick the card permanently as long as you have another working card (any card). In that case the working card must be placed in the primary PCI-E slot and the non functional to the one of the secondary slots. Thats the worst case scenario and most of the cards have dual bioses anyway.	https://www.dropbox.com/s/kdipi1y53ikxb91/100351-6GVXSR_AGR_T2.zip
80	Sapphire R9 280X OC Dual-X	Elpida	EDW2032BBBG	Your poor hashrate is not caused by the latency because your card uses Elpida. The card is either throttling (Powertune or VRM/GPU temperatures) or you are using wrong settings for it (the hashrate newer goes past 550k range without "-g 2 option" in cgminer, atleast for me).	https://www.dropbox.com/s/y85vbxtlt3zgjq8/Sapphire_E2104-UX2_AGR.zip	https://www.dropbox.com/s/hdkcvgai3fxaq3r/Sapphire-280X-OC-Dual-X.zip
81	Sapphire R9 280X Vapor-X	Hynix		I've currently investigating a issue I found on certain Sapphire bios versions. Some of the most recent version seem to alter the configuration of the VRM controller in way it shouldn't be done. It does not raise voltages but changes the VRM parameters instead. It causes the VRM temperatures to raise over 20 celcius and therefore the card throttles pretty easily. 7970 and 280X cards are affected, might be 7950 too (if equipped with CHL8228 controller).	https://www.dropbox.com/s/7y5fs3dh000fh46/Sapphire_E21004-U42_AGR.zip
82	Sapphire Radeon 7950	Hynix & Elpida	H5GQ2H24MFR, EDW2032BBBG	Sapphire should show a nice boost on both Elpida and Hynix AFR at 1500MHz.	https://www.dropbox.com/s/8hi902rrmv28q2j/Sapphire_E21900-S4B_K2_AGR.zip	https://www.dropbox.com/sh/5c14vvya9gn8eus/lT72flp4vl
83	Sapphire Vapor-X OC	Elpida	EDW2032BBBG	BIOS: 015.041	https://www.dropbox.com/s/67bbgnr1z7bif5k/Sapphire_E21004-V42_AGR.zip	https://www.dropbox.com/s/w4lrgupkduflfv5/sapphire%20bios.rom
84	Sapphire vapor-x r9 280x	Elpida	EDW2032BBBG		https://www.dropbox.com/s/j584q8qh0rd6hyv/Sapphire_E21004_V44_K2_NT_AGR_ELP.zip	https://www.dropbox.com/s/zoieb6wyxisdgwg/sapphirevaporxr9280x015-041.rom
85	XFX 280X TDBD	Hynix & Elpida			https://www.dropbox.com/s/9vorfjony7ysiae/XFX_797A3DF_GD5_AGR.zip
86	XFX 280x TDFD	Hynix & Elpida			https://www.dropbox.com/s/hbvquqcfzayit7w/XFX_797A-3DF-GD5_130305_AGR.zip
87	XFX 7950	Elpida		Fully recompiled, 1625 & 1750MHz frequency presets added, optimised.	https://www.dropbox.com/s/dxcjczo1h1jn670/XFX_795A_TDF_PRO2_AGR.zip
88	XFX 7950	Hynix		Fully recompiled, 1625 & 1750MHz frequency presets added, optimised.	https://www.dropbox.com/s/qhh59aqf2gcpfj4/XFX_795_TDB7_AGR.zip
89	XFX 7950 DD OC FX-795A-TD	Elpida	EDW2032BBBG	Use 1500MHz (exact) MEMCLK, higher or lower will be slower.	https://www.dropbox.com/s/99dfe4n1kpjgly7/XFX_795A-TDF_VL1_K2_AGR.zip	https://www.dropbox.com/s/kmntw2zssabbyw0/xfx-7950_795A-TDFC_Elpida-EDW2032BBBG.rom
90	XFX 7950 TDK-C	Elpida		Hynix and Elpida optimised. Original and Modded.	https://www.dropbox.com/s/j7askwysjw044mh/XFX_795A-TDLTNL-V13_AGR.zip
91	XFX 7970	Elpida			https://www.dropbox.com/s/g97lejzwo2f3fcy/XFX_797A_3DF_GD5_AGR.zip
92	XFX 7970				https://www.dropbox.com/s/qgq5tycnoo7gzk6/XFX_797A-TDFV_AGR.zip
93	XFX 7970	Hynix			https://www.dropbox.com/s/njy3dzm3ry6or64/XFX_797ATDF-V33_AGR_AFR.zip
94	XFX 7970 FX-797A-TDJV	Elpida			https://www.dropbox.com/s/8xlriyj8q4kttod/XFX_797A_TDB_V32_E_AGR.zip	https://www.dropbox.com/s/j51of3zb0q8lrmk/XFX_FX-797A-TDJV_Ver1.0.rom
95	XFX Double D FX-795A-TDKC	Hynix & Elpida			https://www.dropbox.com/s/skpceptpb2xecp3/XFX_795A_TDLTNL-V13_K2_AGR.zip	https://dl.dropboxusercontent.com/u/114011/XFX-FX-795A-TDKC.rom
96	XFX R9 280X TDFD	Hynix & Elpida		Further optimised for Elpida, Hynix is however also supported.The bios is actually 280X bios eventhou it is named as 797A (XFX recycles).	https://www.dropbox.com/s/g414enalr6tkf08/XFX_797A-3DF_GD5_K2_AGR.zip	https://www.dropbox.com/s/8keicawozwjzzsh/XFX%20R9-280X-tDFD.rom
97	Sapphire 7970 Dual X (11197-11)	Hynix	H5GQ2H24AFR	You might see a small boost at 1500MHz (exactly, smaller below and above that).	https://www.dropbox.com/s/4vtdvb00cc2l5mi/Sapphire_E21004_OB5_AGR.zip	https://dl.dropboxusercontent.com/u/92160071/Sapphire7970DualXTahiti.rom
98	E24900X-S42	Hynix & Elpida		In case the card uses Elpida ICs you should see some boost at 1500MHz MEMCLK (exact). Hynix was also optimised a bit further yet there was not much to be done.	https://www.dropbox.com/s/ozpjvo5p04rhycn/Sapphire_E24900-S41_K2_AGR.zip	https://www.dropbox.com/s/x1snu8tyhdax2je/Sapphire.E24900X-S42.zip
99	Gigabyte 7950 WF3	Elpida	EDW2032BBBG	Anyway with this you should see a nice boost at 1500MHz MEMCLK (exact) on Elpidas.	https://www.dropbox.com/s/epdldal8drek2c0/GV-R795WF3-3GD_FT0_K2_AGR.zip	http://tinyurl.com/lkmf6yv
100	Gigabyte r280x f60				https://www.dropbox.com/s/51d87ch0ps1ja9f/GV-R928XOC-3GD_F60_AGR_ORG.zip	https://www.dropbox.com/s/snaba7vn7o3cii9/GV-R928XOC-3GD_F60.zip
101	E24900-S42_AGR			Same changes as for the previous S41. Boost should occur at 1500MHz on Elpidas. Hynix was also optimised.	https://www.dropbox.com/s/d64k3g6q59ow8yq/Sapphire_E24900_S42_K2_AGR.zip	https://www.dropbox.com/s/7fdoif5vulr6q44/Sapphire_113-2E24900X-S42.rom.zip
102	Powercolor PCS+ 7950	Hynix & Elpida		Rebuild, recompiled and fully optimised for both Hynix MFR and Elpida. You should see a boost at 1500MHz (exact) MEMCLK regardless the memory type.	https://www.dropbox.com/s/z8frm26r1jfuwhe/TUL_R19F_V10_K2_AGR.zip	https://www.dropbox.com/s/4g5b8odlsffx0hj/TahitiPowerColorPCS.rom
103	Powercolor 7950 / Club3D Royal King	Hynix & Elpida		Rebuild, recompiled and fully optimised for both Hynix MFR and Elpida. You should see a boost at 1500MHz (exact) MEMCLK regardless the memory type.	https://www.dropbox.com/s/27gj88uegvnupom/TUL_R19F_V10_LI2_K2_AGR.zip	https://www.dropbox.com/s/njyzsu6epo4uh40/TahitiRoyalKing.rom
104	Sapphire vapor-x r9 280x	Elpida	EDW2032BBBG	It should also help with the VRM throttling that occurs on the newer bioses. This is a legacy bios (instead of your UEFI), however it does not make much difference anyway. There should be boost at 1500MHz (exact) MEMCLK.	https://www.dropbox.com/s/j584q8qh0rd6hyv/Sapphire_E21004_V44_K2_NT_AGR_ELP.zip	https://drive.google.com/file/d/0B5gbyNB21YkwYzVwNGo4YkJEOGM/edit?usp=sharing
105	Sapphire 11196-17-40G, HD 7950 Dual-X Flex	Elpida	EDW2032BBBG	Elpida should see a boost at 1500MHz	https://www.dropbox.com/s/28snaq5svv2exvw/Sapphire_E21900_S4C_K2_AGR.zip	https://www.dropbox.com/s/9szsf1qo2tsb5ao/113-1E219001-S4C.zip
106	sapphire 280x vapor-x	Elpida	EDW2032BBBG	Sapphire, optimised for Elpida eventhou there was not too much to be done.	https://www.dropbox.com/s/tvptqcisk08muv8/Sapphire_E21004_V42_AGR.zip	https://mega.co.nz/#!OdlFkK4B!IXm-bn5c0MzzMO6C6EvX4FFyHoAjFdUS1AN-ferXwpg
107	Asus 7970 Matrix Platinum	Hynix	H5GQ2H24AFR	You should see nearly a 200kHash boost at 1500MHz and 1.1GHz engine.	https://www.dropbox.com/s/hgew36pwdni0bgq/ASUS_7970P_3GD5_U3_AGR.zip	http://www.techpowerup.com/vgabios/131189/asus-hd7970-3072-120813-3.html
108	asus r9 280x matrix	Hynix	H5GQ2H24AFR	There was not much to be done, but optimised it a bit further anyway:	https://www.dropbox.com/s/4tvltezvs5gdyz9/ASUS_C386X3_P_3GD5_U2_AGR.zip	https://mega.co.nz/#!eclC0Lyb!AFwuDlfNjn1lxQu529TVohsx80wVbYpLdspFede3MiM
109	Sapphire 7950 OC 950mhz edition	Hynix	H5G2Q2H23MFR	The bios was botched in timing wise, you should see a healthy boost at 1250MHz and above.	https://www.dropbox.com/s/85oxtqbnb9zxsmu/Sapphire_C38612-O02_AGR.zip	https://www.dropbox.com/s/9jl9d9os91qdcke/Sapphire7950oc950mhz.rom
110	XFX 7970 GHz (FX797GTDFC)	Hynix	H5GQ2H24AFR	The original was completely botched.	https://www.dropbox.com/s/tkqu1adt7uzsapa/XFX_797GTDF1_AGR.zip	https://www.dropbox.com/s/tszy4a9n85z96v2/BACKUP.BIN
111	ASUS HD7950-DC2-3GD5-V2	Hynix & Elpida	EDW2032BBBG	This should yield a nice boost on both Hynix MFR and Elpida. At 1500Mhz as usual.	https://www.dropbox.com/s/tfrq2kzcbex7y3n/ASUS_C381PI-113_K2_AGR.zip	https://www.dropbox.com/s/gu4sf03g3i3ptcq/113-AD38900-103.rar
112	XFX_797A-TDF-V33 ??	Hynix & Elpida		The hashrate should show a improvement at 1500MHz MEMCLK (exact) on Elpida now. Also please remember to use "thread-concurrency 8192 -g 2" options now since they are now working. Previously they probably only retarded the hashrate.	https://www.dropbox.com/s/8jehvq7bgyyxu3l/XFX_797A-TDF-V33_K2_AGR.zip
113	XFX 7970	Elpida	EDW2032BBBG	0	https://www.dropbox.com/s/8jehvq7bgyyxu3l/XFX_797A-TDF-V33_K2_AGR.zip	https://www.dropbox.com/s/yrs2tsznx4mpifb/XFX-797A-TDJ-v2-.rom
114	MSI R7970-2PMD3GD5/OC			The second bios you posted is for ASUS card instead of Sapphire. Either way, I restored both of them to their Golden state (manufacturer and AMD approved, i.e removed your own tunings). Both of the bioses were equally botched. They will now work properly on both Hynix MFR and Elpida. The performance peak in memory wise will not be at 1500MHz (exact). Both of the bioses were for "semi" reference (MBA) board, so they will work on all such boards.	https://www.dropbox.com/s/umauhh9ugetco70/MSI_TV277MS_110_K2_AGR.zip	http://bal3wolf.centelia.net/MINING/Tahiti1.rar
115	Sapphire Radeon HD 7970 3GB 21197-00-40G			The second bios you posted is for ASUS card instead of Sapphire. Either way, I restored both of them to their Golden state (manufacturer and AMD approved, i.e removed your own tunings). Both of the bioses were equally botched. They will now work properly on both Hynix MFR and Elpida. The performance peak in memory wise will not be at 1500MHz (exact). Both of the bioses were for "semi" reference (MBA) board, so they will work on all such boards.	https://www.dropbox.com/s/z94ctj7dfzx5dvu/ASUS_C38601_201_AS04_K2_AGR.zip	http://bal3wolf.centelia.net/MINING/Tahiti2.rar
116	Sapphire 7950 (11196-16-20G) with	Hynix & Elpida		It is fastest at 1500MHz MEMCLK exactly.	https://www.dropbox.com/s/458338k0v37axry/Sapphire_E20700_S4C_K2_AGR.zip	https://dl.dropboxusercontent.com/u/55259053/bios-7950-%20Sapphire%2011196-16-20G.rom
117	HD 7970	Elpida	EDW2032BBBG	There is a chance that UEFI will be lost after the modifications.	https://www.dropbox.com/s/51d87ch0ps1ja9f/GV-R928XOC-3GD_F60_AGR_ORG.zip	https://www.dropbox.com/s/566i552z1s1eslu/GV-R9280XOD-3GDREV2.rom
118	XFX 7970 Core Edition Reference	Hynix & Elpida	H5GQ2H24MFR	Report	https://www.dropbox.com/s/2v1f7wlpygya0ip/XFX_C860100-100_MBA_K2_AGR.zip	https://www.dropbox.com/s/1rcpl81i3gf9lkr/XFX%20FX-797A-TNFC.rom
119	ASUS R9-280X				https://www.dropbox.com/s/z8gjf542i9quckl/ASUS_C386PI3_101_AGR.zip	http://www39.zippyshare.com/v/75493080/file.html
120					https://www.dropbox.com/s/6r77ld57v0qb83o/XFX_797ATNB_V10_K2_AGR.zip	http://bal3wolf.centelia.net/MINING/xfx%20stock.rar
121					https://www.dropbox.com/s/kxyzx6s4pm2xgzl/Sapphire_E24900_S42_AGR_PRO2.zip	http://bal3wolf.centelia.net/MINING/Sap%20Stock.rar
122					https://www.dropbox.com/s/nc5j4mfuohjmfhj/MBA_C3860100-100_AGR_K2.zip	http://bal3wolf.centelia.net/MINING/7970%20stock.rar
123	Sapphire Radeon R9 280X Dual-X 3G GDDR5 OC UEFI Edition (11221-07-20G)	Elpida	EDW2032BBBG	Try this one, it should work. It is the Vapor-X bios which has 20MHz higher engine clock. There should be no throttling as the VRM temperatures are around 20°C lower.	https://www.dropbox.com/s/j584q8qh0rd6hyv/Sapphire_E21004_V44_K2_NT_AGR_ELP.zip	http://www.mediafire.com/download/p5sr4xdb3a0b9ww/Sapphire+R9+280x+Dual+OC+%2811221-07-20G%29.bin
124	XFX HD 7970 BLACK EDITION V5.0 TDB	Hynix	H5GQ2H24MFR		https://www.dropbox.com/s/ph6urfjhx1ixgs8/XFX_797A_TDB_V32_AGR_Hynix.zip	https://www.dropbox.com/s/ncnkrpidknz4n6f/xfx_hd7970_FX797ATDB_V5.rom
125	XFX 280x TDFD	Elpida	EDW2032BBBG		https://www.dropbox.com/s/g414enalr6tkf08/XFX_797A-3DF_GD5_K2_AGR.zip	http://www.ultimatepreppersguide.com/bin/XFX-R9-280X-TDFD.rom
126	MSI HD7870 OC 2 Gb	Hynix			https://www.dropbox.com/s/u8e5bx53r49x739/MSI_TV274MS_160_K2_AGR.zip	https://www.dropbox.com/s/2iplmtmtp9dei6p/GPU.rar
127	HIS R9 280x ICEQ X Turbo Boost	Elpida		Should show a boost at 1500MHz on Elpidas.	https://www.dropbox.com/s/spkjuqhf6d4iuul/HIS_SV6G01_005_K2_AGR.zip	https://dl.dropboxusercontent.com/u/11747583/HIS_R9_280x_IceQ2.zip
128	Gigabyte HD 7970 (GV-R797OC-3GD)	Hynix & Elpida			https://www.dropbox.com/s/sjpy4b3le2dbf6x/GV-R797OC-3GD_F10_K2_AGR.zip	https://www.dropbox.com/s/ttyzh8i6vitas55/Tahiti-7970-my1.rom
129	Sapphire Dual X 7950 (11196-19-20G)	Hynix		Elpida will see a nice boost at 1500MHz, Hynix was fine to begin with.	https://www.dropbox.com/s/h1ys0ofqj6dea3y/Sapphire_E24900_S41_K2_AGR.zip
130	HIS 7970 IceQ X² 3GB GDDR5 (H797QM3G2M)	Hynix & Elpida	SK H5GQ2H24MFR & EDW2032BBBG	Both Hynix MFR and Elpida were a mess. But no more. Both will see a boost at 1500MHz MEMCLK (exact).	https://www.dropbox.com/s/0zz667dlf9upjrz/HIS_SV2G02-001_K2_AGR.zip	https://www.dropbox.com/s/d1e899b2fjp1z0w/Tahiti%207970%20ORI.rar
131	Clud3D 7970 RoyalKing	Hynix & Elpida	H5GQ2H24MFR	That was a mess. Both Hynix MFR and Elpida will show gains at 1500MHz MEMCLK (exact).	https://www.dropbox.com/s/sybeu5xkhll9foq/TUL_R19FD_V10_K2_AGR.zip	https://www.dropbox.com/s/lbkqx8zhqsmnea9/Club3D%207970%20RoyalKing%20CGAX-7977O.rar
132	XFX HD 7970 BLACK EDITION V5.0 TDB	Hynix	H5GQ2H24MFR	Hynix MFR only	https://www.dropbox.com/s/ph6urfjhx1ixgs8/XFX_797A_TDB_V32_AGR_Hynix.zip
133	XFX HD 7970 BLACK EDITION V5.0 TDB	Hynix	H5GQ2H24AFR		https://www.dropbox.com/s/ti2uy4td26jfg04/XFX_797A_TDB_V32_AGR_Hynix-AFR.zip	https://www.dropbox.com/s/ncnkrpidknz4n6f/xfx_hd7970_FX797ATDB_V5.rom
134	PowerColor AXR9-280X-3GBD5-DHE	Elpida	EDW2032BBBG	There is nothing wrong with the PowerColor R9 280X bios in terms of latency.		https://dl.dropboxusercontent.com/u/26044097/PowerColor-AXR9-280X-3GBD5-DHE.rom
135	Diamond R9 280X - R9280XD53GXOC	Elpida	EDW2032BBBG	There is nothing wrong with this bios in terms on memory latency.	- nothing -	https://dl.dropboxusercontent.com/u/31586743/R9280XD53GXOC_DIAMONDR9280X_ORIGINALBIOS.rom
136	ASUS 280x TOP V2			Nothing wrong with here either. Should hash around 745kHash/s right out of the box.		https://www.dropbox.com/s/7lo36b2u8lm1lau/R9280X-DC2T-3GD5-V2.rom
137	Powercolor 7970-3GBD5-M2DHV2	Hynix	H5GQ2H24MFR		https://www.dropbox.com/s/nc5j4mfuohjmfhj/MBA_C3860100-100_AGR_K2.zip	https://www.dropbox.com/s/djn89gsss47nmub/3GBD5M2DHV27970.rom
138	Radeon Black 7970 FX-797A-TNFX-797A-TNBC v1.0	Hynix & Elpida	H5GQ2H24MFR	Both Elpida and Hynix MFR will see a boost at 1500MHz exactly.	https://www.dropbox.com/s/tjn37cut4mxdh22/XFX_797A_TNFX_TST_K2_AGR.zip	https://www.dropbox.com/s/bd4kw93dqgbnnx7/7970-Radeon-Black-FX-797A-TNFX-797A-TNBCv1.0.rom
139	7970 XFX DD (FX-797A-TDFC)	Elpida			https://www.dropbox.com/s/eidpyrjtcle44qm/XFX_797A-TDF_V33_K2_AGR_ELP.zip	https://mega.co.nz/#!1xYwUCwS!Z--OgUNH43w0ewJi270Q_xsy7OVqRNdbOtqbovIeRIQ
140	Sapphire R9 280X Toxic (11221-01-40G)	Hynix AFR		Fine to start with, nothing wrong with the timings.		http://www.mediafire.com/download/7cnuizhohvob94q/015.039.000.000.000000%20(113-C3865001-T03).rom
141	VTX3D Radeon HD7950 X-Edition (VX7950 3GBD5-2DHXE)	Elpida	EDW2032BBBG	Will be fastest at 1500MHz MEMCLK (exact).	https://www.dropbox.com/s/3mddwq9gtaeys18/TUL_R19F_V10_100_LI2_K2_AGR.zip	https://www.mediafire.com/?d5wvzb29ubysmy9
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	A
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