Would a Thermaltake Toughpower 850W PSU be enough for Dual GTX280s

[GameRGeeK]

Would a PSU, like the Thermaltake Toughpower 850W, have enough to power 2 GTX280s/4870x2s??

I have read that it could, but its always best to get the surest facts up front.

 

[DSF]

In Anandtech's GTX280 review, they found that a system with double GTX280s pulled around 500W at full load.

 

[GameRGeeK]

Originally posted by: DSF
In Anandtech's GTX280 review, they found that a system with double GTX280s pulled around 500W at full load.

So 850W is more than enough right now for dual GTX280s in the sense that it would surely power 2 4870X2s in Crossfire? I heard the ATI card uses less power than the new Nvidia cards thats why I'm asking.

 

[imported_Scoop]

But also they couldn't run the GTX280s in SLI with just their 1kW OCZ PSU. I think this was more due to the bad quality of that PSU than anything since Guru3D ran GTX280s in Tri-SLI with a 1kW Enermax Galaxy and measured a peak consumption of 530W with dual- and 750W with triple-SLI. So whatever you buy, make sure it's quality and not the cheapest that seems to meet the wattage requirement.

 

[HOOfan 1]

IIRC the some Thermaltake Toughpower 850 Watters don'tt have any 8 pin PCI-E connectors or at least don't have 2. However, if it had enough PCI-E connectors, you would be fine.

AT's assertion that a 1000W PSU wasn't enough is outright bullflop.

The EliteXstream is a quality PSU, but that one may have been deffective, or something else was at work. They should have used their heads instead of coming up with a BS explanation like that though.

They even falsly stated that the lowest PSU certified on nVidia's website for GTS 280 SLi is 1200 Watts...go to SLi zone yourself and you will see both the CWT 1000W and CWT built Xigmatek 1000 Watt are certified...

 

[GameRGeeK]

Originally posted by: HOOfan 1
IIRC the some Thermaltake Toughpower 850 Watters don'tt have any 8 pin PCI-E connectors or at least don't have 2. However, if it had enough PCI-E connectors, you would be fine.

The EliteXstream is a quality PSU, but that one may have been deffective, or something else was at work. They should have used their heads instead of coming up with a BS explanation like that though.

Lets say i get myself 2 6pin-pin adaptors to run 2 GTX280s with a Thermaltake Toughpower 850W, *just found out that the model I got had no 8pin adapters* would it be still possible to run the 2 cards? For SLI purposes.

Just dont want to shell out $250-$300 for a new PSU, if my 850 could do the job just as well. I have also read that having a PSU that is weaker than what is recommended for a particular videocard setup, that the worst that could happen is the pc would always reboot or it just wont start at all.

if anyone would care to share, is anyone running an under 1000WATT PSU with a highend Videocard setup?? *similar to what this thread is about*