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BrandModelSocket TypeSocket CountIncluded CPUCPU PassmarkSuggested upgrade CPUsDIMM SlotsIncluded RAM Native HDD BaysAdditional possible HDD baysPower SupplyNIC'sPCI-E X16 slotsTotal PCI-E X1 or greater slotsOtherCase Dimensions (inches)eBay price & linksupport documentation link
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DellT1700 mini towerIntel LGA 11501nonen/a4th-gen i3/i5/i7, v3 E3 Xeon4none (non-REG ECC or non-ECC only)22290 watt 65%12314.17-H 6.89-W 17.13-D$99.99link here
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DellT7500Intel LGA 13661 (2 with dual CPU riser)single X56607662 single, 11719 dualX5670, X5690, L5640 (for lower power)6 (12 with dual CPU riser)3 x 4GB DDR3 ECC REG431100 watt 85%+155dual CPU capable with additional CPU riser22.26-H 8.50-W 22.30-D$199.99link here
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HPZ420Intel LGA 20111E5-26033570E5-1600 V1/V2 or E5-2600 V1/V244 x 2 GB DDR3 ECC REG33 or 4600 watt 80+ Gold 90%13517.6-H 7.0-W 17.5-D$184.99link here
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HPZ620Intel LGA 20111 (2 with dual CPU riser)single E5-26207957 single, 12503 dualE5-2600 V1/V28 (12 with dual CPU riser)4 x 2GB DDR3 ECC REG3questionable800 watt 80+ Gold 90%225dual CPU capable with additional CPU riser

DVD drive included
17.5-H 6.75-W 18.3-D$249.00link here
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DellT5600Intel LGA 20112single E5-26207957 single, 12503 dualE5-2600 V1/V282 x 4GB DDR3 ECC REG21825 watt 80+ Gold 90%1451TB HDD, Nvidia GPU included16.30-H 6.79-W 18.54-D$399.99link here
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CPU Upgrade Options (2011)Cores/ThreadsPricePassmarkClock/TurboTDPLink
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e5-26206/12$28.9579572.0/2.5 GHz95WEbay Link
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Dual:12503
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e5-2630L6/12$25.00 (OBO)79002.0/2.5 GHz60WEbay Link
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Dual:10641
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e5-26508/16$74.00 (OBO)101592.0/2.8 GHz95WEbay Link
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Dual:15040
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e5-2660 V210/20$140.00136712.2/3.0 GHz95WEbay Link
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Dual:$299.20 (OBO)18246Ebay Link
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e5-2680 V210/20$198.00 (OBO)158662.8/3.6 GHz115WEbay Link
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Dual:$359.9922483Ebay Link
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