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nVidia updates 7900GTX SLI and 512MB 7800GTX SLI power supply requirements - i4memory.com - different look at memory
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Old 28-03-2006, 01:42 AM   #1
eva2000
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Exclamation nVidia updates 7900GTX SLI and 512MB 7800GTX SLI power supply requirements

nVidia has updated their list for 7900GTX SLI and 512MB 7800GTX SLI at http://www.slizone.com/object/slizon..._powersupplies
Dual GeForce 7900 GTX or Dual GeForce 7800 GTX 512 MB
FSP Group EPSILON FX600-GLN 600W
FSP Group EPSILON FX700-GLN 700W
PC Power & Cooling Turbo-Cool 1KW
PC Power & Cooling Turbo-Cool® 850 SLI (850ETX-PFC)
Silverstone ST56ZF 560W
Sparkle Power FSP600-80GLC
Sparkle Power FSP650-80GLC
Sparkle Power FSP550PLG-SLI 550W
All other SLI PC configurations
Akasa PowerPlus 650W PSU
Akasa PowerPlus 550W PSU
Antec NeoHE 500W
Antec TPII-550
Antec NeoHE 550
Antec TP2550EPS12V
Antec TrueControl II 550
AOpen AO700-ALN 700W
BFG Tech Power Supply 600W
CoolerMaster Real Power 550W SLI
CoolerMaster iGreen Power 500W (RS-500-ASAA)
CoolerMaster iGreen Power 600W (RS-600-ASAA)
Coolmax CXI-600B, 600W
Coolmax CXI-500B, 500W
Coolmax CW-650T 650W Extreme Power
Enermax EG565P-VE FMA 535W
Enermax EG651AX-VH EPS12V 550W
Enermax EG851AX-VH EPS12V 660W
Enermax EG701AX Noisetaker 600W
Enermax Liberty 500W (ELT500AWT)
Enermax Liberty 620W (ELT620AWT)
FSP Group EPSILON FX600-GLN 600W
FSP Group EPSILON FX700-GLN 700W
Grow up Japan Co. GUP-EG620J (620W)
High Power HPC-560-A12S EPS, 560W
High Power HPC-560-A88S EPS, 560W
Hiper Type-R series 580W HPU-4[B,K,R,S]580
Listan be quiet! Dark Power BQT P6 520W
Listan be quiet! Dark Power BQT P6 600W
OCZ Technology PowerStream 520W (OCZ520ADJSLI)
OCZ Technology PowerStream 600W (OCZ600ADJSLI)
PC Power & Cooling Turbo-Cool 1KW
PC Power & Cooling Turbo-Cool® 510 SLI (510ATX-PFC)
PC Power & Cooling Turbo-Cool® 850 SLI (850ETX-PFC)
Seasonic S12-500 Watt
Seasonic S12-600 Watt
Silverstone ST56ZF 560W
Silverstone ST65ZF 650W
Silverstone ST60F 600W
Sparkle Power FSP600-80GLC
Sparkle Power FSP650-80GLC
Sparkle Power FSP550PLG-SLI 550W
Sunbeamtech NUUO Series 550W SLI (SUNNU550-US)
Thermaltake PurePower TWV500W
Ultra Products X2 550W PSU - Titanium
Ultra Products X-Finity 500 Watt PSU
Ultra Products X-Finity 600 Watt PSU
XClio Goodpower 500W
XClio GreatPower X14S4P3 500W
Zippy Gaming GSM-6600P(G1) 600W
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Old 28-03-2006, 01:46 AM   #2
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I guess the other psus have more than one +12v rail that get's overloaded in 7900GTX/512MB 7800GTX SLI configurations as shown from http://i4memory.com/showthread.php?t=2381

But work around from http://i4memory.com/showthread.php?t=2381 would be to use a PCI-E to 2x molex adaptor for the 2nd SLI card instead of the psu PCI-E power cable
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Old 01-04-2006, 01:35 PM   #3
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Interesting info from Silverstone regarding 650W older revision vs 650W newer psu they have about rail distributions http://www.silverstone-usa.com/QA-POWER.htm

The original version of ST65ZF is capable powering a fully loaded SLI/CrossFire system equipped with either 7800GTX 256MB or X850XT 256MB. This version of power supply can be identified by the surface coating, which have “shinny” galvanized coating.




vs

Newly revised ST65ZF(released in summer 2005)and all ST60F are capable of supporting fully loaded SLI/CrossFire systems running 7800GTX 512MB or X1900XTX cards if 4pin to 6pin PCI-E adapter is used on one of the cards. These can be easily identified from the original ST65ZF by its surface coating, they have a flat, black paint finish as opposed to galvanized coating.


Last edited by eva2000; 05-05-2006 at 06:28 PM.
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Old 05-05-2006, 06:06 PM   #4
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By eva2000
Newly revised ST65ZF(released in summer 2005)and all ST60F are capable of supporting fully loaded SLI/CrossFire systems running 7800GTX 512MB or X1900XTX cards if 4pin to 6pin PCI-E adapter is used on one of the cards. These can be easily identified from the original ST65ZF by its surface coating, they have a flat, black paint finish as opposed to galvanized coating.

That really sucks!!! I hardly have any spare molex connectors how the hell can I free two of them to connect it to a PCI-E connector.

It appears Zippy, Sliverstone 750W??? and 1.1Kw are the ideal PSU for full load high-end system???

Cheers

None of those link work Eva.
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Old 05-05-2006, 06:28 PM   #5
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silverstone changed domain names heh updated links
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Old 05-05-2006, 07:42 PM   #6
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Thanks for updating the linky. I have some problem interpreting those illustrations. On their old PSU, how can 12V3 rail run two 7800GTX 256Meg with only 16A to spare??? let alone overclocking....

And on their new PSU, how can it limit the requirement when theres 18A available on +12V4. G70 would only take 8 A or so.

Last edited by sandeep; 05-05-2006 at 07:54 PM.
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Old 05-05-2006, 10:45 PM   #7
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well my 2x BFG 7800GTX SLI ran find with dual core cpu on 650W Silverstone SLI rev1 so can confirm it works.. as to new psu, i think they're estimating the amp usage not limiting it
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Old 06-05-2006, 11:57 AM   #8
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So now that i'm inline for a step-up to 7900gtx's i should probably consider a new psu? I am running the Enermax Noisetaker 600 watts . I dont know what it has for amps on the rails to be honest. I think the label says 18 im not sure. But if thats right i really need one bad.

Last edited by GFDuke; 06-05-2006 at 12:06 PM.
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