06-23-08, 05:00 PM
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#1 | |
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Registered User
Join Date: Apr 2007
Posts: 1,387
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GTX 280 and Rosewill 850W
http://www.ocia.net/reviews/rosewillrs850/page1.shtml
This is the power supply i have now...running almost for a year, and it does kick ass job. I got 6pin to 8pin cable adapter with PSU. Do you think that my 6pin can provide enough juice through 6-8pin cable adapter for a card? 6pin connector can provide 170W by reading spec sheet, that enough?
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System: eVGA x58SLI x16 4Way Classified, Intel Six Core i7 X980@4.00Ghz, 6Gb GSkill DDR3-1600, Tri Crossfire 3xATI Radeon 5870 1Gb, Raid1 - 2xSSD Intel 80Gb X-25M, Raid0 - 2xHDD Samsung 2Tb, Raid1 - 2xHDD Samsung 1Tb, LG Blue-Ray/HD-DVD Player, Silverstone 1100W PSU, Intel Stock Cooler (New One), Thermaltake Xaser VI, LG 27" LCD, Logitech Keyboard G15, G5 Logitech Mouse OS: Windows 7 x64 35708 - 3DMark Vantage http://service.futuremark.com/compare?3dmv=2109601 |
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06-23-08, 06:30 PM
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It's a wittle baby!
Join Date: Jan 2007
Location: United States
Posts: 4,554
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Re: GTX 280 and Rosewill 850W
With an 850w Rosewill PSU, what are you worried about?
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MadPistol's Rig AMD Phenom II X4 965 BE (RB-C3) @ 4Ghz, 1.425 Vcore, 1.25V NB VID Thermalright Ultra 120 Extreme (w/ Scythe Gentle Typhoon 120mm fan) Gigabyte UD3H AM3 790GX motherboard XFX Radeon HD 5870 PNY XLR8 2x2GB CL8 DDR3 1600 G.Skill Ripjaws 2x2GB CL8 DDR3 1600 Soundblaster X-Fi Fatality Titanium OCZ Vertex II 120GB SSD (OS drive) Western Digital 500GB Caviar (black) Western Digital 640GB Blue Samsung DVD burner Logitech MX performance mouse Logitech G15 keyboard Corsair HX 750-watt Modular PSU Antec Nine Hundred case Windows 7 Home Premium x64 ASUS MK241 24" LCD ACER X241W 24" LCD - RIP 
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06-23-08, 07:08 PM
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#3 | |
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Registered User
Join Date: Apr 2007
Posts: 1,387
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Re: GTX 280 and Rosewill 850W
Quote:
I was saying to use only 2x6pin connectors, one with 6 to 8 pin adapter. I read letter from nvidia on evga site that it's not recommended to use two 6pin cables to connect to 26pin-8pin adapter.
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System: eVGA x58SLI x16 4Way Classified, Intel Six Core i7 X980@4.00Ghz, 6Gb GSkill DDR3-1600, Tri Crossfire 3xATI Radeon 5870 1Gb, Raid1 - 2xSSD Intel 80Gb X-25M, Raid0 - 2xHDD Samsung 2Tb, Raid1 - 2xHDD Samsung 1Tb, LG Blue-Ray/HD-DVD Player, Silverstone 1100W PSU, Intel Stock Cooler (New One), Thermaltake Xaser VI, LG 27" LCD, Logitech Keyboard G15, G5 Logitech Mouse OS: Windows 7 x64 35708 - 3DMark Vantage http://service.futuremark.com/compare?3dmv=2109601 |
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06-23-08, 08:52 PM
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Newtype Ace
Join Date: Jul 2004
Location: Hong Kong
Posts: 3,206
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Re: GTX 280 and Rosewill 850W
A 6-pin can only provide 75W of power. If your PSU has 3 availalbe 6-pin cables (which I'm sure it does), you can use a dual 6-pin to single 8-pin PCI-E adapter which should come with your card, then you should be set.
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06-23-08, 08:56 PM
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#5 |
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Registered User
Join Date: Jul 2003
Location: South Florida
Posts: 524
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Re: GTX 280 and Rosewill 850W
If you have a PCI-Express compliant motherboard, you may be able to get away with the 6-pin to 8-pin adapter. PCI-E 2.0 slots give 150W of juice to the card instead of 75W. That would help. My motherboard is not PCI-E 2.0, but I still seem to be O.K. I have a 750W power supply.
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Core i7 3770 @ 3.4GHz EVGA GeForce GTX 660 Ti Superclocked 1TB Seagate HDD 7200 RPM 32MB Cache 16X DVD-RW drive Gateway 24-inch 108p monitor Gateway speakers |
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06-23-08, 09:06 PM
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#6 |
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Newtype Ace
Join Date: Jul 2004
Location: Hong Kong
Posts: 3,206
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Re: GTX 280 and Rosewill 850W
I wouldn't gamble. The 8-pin can deliver 150W of power, and to match that you really do need two 6-pin connectors. It's better safe than sorry.
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06-23-08, 09:53 PM
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#7 |
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W OOO OOO
Join Date: Nov 2004
Location: T.O. Canada
Posts: 714
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Re: GTX 280 and Rosewill 850W
Aren't the two extra pins just redundant grounds? I'm pretty sure they are.
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Vista x64 Intel Q6600 (3.6GHz 1.45v) ATI 4890 Sharp Aquos 42" 1080p ASUS P5K-E 8.0G OCZ RAM Rig is ON 24/7 |
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06-23-08, 10:46 PM
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#8 |
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Registered User
Join Date: Mar 2006
Posts: 575
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Re: GTX 280 and Rosewill 850W
How about my 620hx? It's powering my 9800gx2 which is overclocked right now (but it's 8 pin goes directly into the psu (modular), and on the site it says 6+2).
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Abit ip35 pro q6600 3.6 MSI N480GTX 8gb G.Skill Win7 |
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06-24-08, 12:56 AM
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#9 |
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Newtype Ace
Join Date: Jul 2004
Location: Hong Kong
Posts: 3,206
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Re: GTX 280 and Rosewill 850W
The 620HX is fine for this card. Minimum is 550W with combined 12V current rating of 40A.
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