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NameModel Number 1Model Number 2Notes
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HP DL380p/560 Gen8 3 Slot PCI-E Riser Kit653206-B21676406-001?
Standard for both primary (proc1) and secondary (proc2). 1 x16 (FL/FH), 2 x8 (HL/FH)
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HP DL380p Gen8 Double Wide Slot1 Riser Cage Kit752803-B21728536-001?
1 x16 slot, 1 x8 slot. Primary (proc1) only. Supports cards greater than 9.5". Can have 1 single wide and 1 double wide cards, or 2 single wide cards. Requires 2x 1200W psus. RARE
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HP DL380p/560 Gen8 2 Slot 2x16 PCI-E Riser Kit653208-B21
2 x16 slots (FL/FH). Secondary only? No double width support, 2 single wide only
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HP DL380p Gen8 Double Wide Riser Cage Kit662885-B21
2 x16 slots. Secondary (proc2) only. Functionally equivalent to 728543-B21.
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HP DL380p Gen8 Double Wide Graphic Processing Unit Drive Cage Kit
728543-B21710727-001
2 x16 slots. Secondary (proc2) only. Supports cards greater than 9.5". Can have 2 single wide OR 1 double wide cards. Requires 2x 1200W psus.
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Spare Parts:
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PCB for 3 slot riser (653206-B21)662524-001622219-001*
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PCB for 2 slot riser (653208-B21, 662885-B21, and 728543-B21/710727-001)
662525-001634582-001*
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PCB for 2 slot riser (752803-B21) 1 x8 and 1 x16755741-001728537-001?*
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riser cage (metal part only) for 653206-B21 and 653208-B21
662526-001*
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riser cage (metal part only) for 728543-B21 and 662885-B21
709860-001*"double wide"
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riser cage (metal part) for 752803-B21728535-B21728536-001?*
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Cables:
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150W cable kit669777-B21
looks like its 8 to 6 pin
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225W cable kit728539-B21
can get these from china on ebay for cheap, though they aren't nearly as nice
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10pin to 2x6pin cable y splitter kit757156-B21
I think this goes with any of the secondary 2 slot boards
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8pin (10?) to 2x6pin cable y splitter kit "for graphics"
755742-001
I think this goes with 752803-B21 and 728543-B21, though both boards have 10 pins. Might be 670728-002 also
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dl380p G8 can do one of the following:
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3x single width GPU cards, e.g. quadro k4000. 1 in primary x16 (653206-B21), 2 in secondary x16's (using 653208-B21, 662885-B21, or 728543-B21). Requires 150W cable (669777-B21) for 1 in primary, 225W y splitter cable (10pin to 2x6pin 757156-B21) for 2 in secondary.
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2x double width GPU cards, e.g. Tesla or Grid. 1 in primary x16 (752803-B21), 1 in secondary x16 (728543-B21). Requires 2x 225W cable kits (728539-B21)??, 2x 1200W PSUs
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2x Xeon Phi's, see 2x double width GPU above
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Most of these don't work with the 8LFF, 12LFF, or 25SFF configurations (anything that requires 2 PCI sas cards and/or takes up rear space)
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Useful eBay searches (copy + paste):
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(710727-001,728543-b21,662885-b21,709860-001,662525-001,634582-001,728539-b21)
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(752803-b21,728535-b21,755741-001,728537-001,728536-001)
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So to have 2x double wide high power GPUs, you need 1x 752803-B21, 1x 728543-B21 or 710727-001 (same), and 2x 728539-B21 cables, as well as PSUs that can power them.
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I managed to get the above for about $100 total via eBay.
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