[Default_User]

hello I have a Thermaltake tough power 750w modular power supply. I just ordered two 4850's the other day (patently waiting; please don't flame me for my graphics card choice, it was cheep and seemed like a good buy.) but I have a question. Until recently I was sure that my PSU would handle two 4850's...Untill I saw this in an Anandtech review....

"With two 4850s paired up in CrossFire, we once again ran into issues with our power supply. Our 1000W OCZ EliteXStream wasn't always enough for the dual-GPU setup and in Call of Duty 4 our system rebooted in the middle of our test at 2560 x 1600. Thankfully OCZ sent us a PC Power & Cooling Turbo Cool 1200W unit that is certified for use with GeForce GTX 280 SLI, and if it works on that beast, it had better work with a pair of 4850s in CrossFire."

SO....a thousand watt power supply could not care for two 4850's????

Tbh, I do not know a lot about power supplies and rails...That is why I am asking you kind folks!

thank you for any reply, Appreciate it.


p.s. the model number and ratings on my PSU are as follows:

W0116RU

28a : +5v
30a : +3.3v
18a : +12v 1
18a : +12v 2
18a : +12v 3
18a : +12v 4
.8a : -12v

cheers!

[cabose1227]

ati recomends a 550watt psu for that xfire set up so you should be good.

[Alastayr]

Your GPU-choice IS a very good buy! I can't see a reason to flame you for them, I'm actually quite envious.

I've read that sentenece a few times because they jump from 4850 to 1kW PSU to GTX280 SLI and I think they worded it wrong. They must have meant that GTX280 SLI was impossible. Because other tests out there for the 4850 used much lower PSUs and never encountered any problems.

I don't know what else your PSU has to power, but it should definitely be fine. They don't draw that much power in Crossfire.

[Default_User]

Originally Posted by Alastayr

Your GPU-choice IS a very good buy! I can't see a reason to flame you for them, I'm actually quite envious.

I've read that sentenece a few times because they jump from 4850 to 1kW PSU to GTX280 SLI and I think they worded it wrong. They must have meant that GTX280 SLI was impossible. Because other tests out there for the 4850 used much lower PSUs and never encountered any problems.

I don't know what else your PSU has to power, but it should definitely be fine. They don't draw that much power in Crossfire.

lol thanks! I appreciate your help and also yours caboose It didn't sound right, I just wanted to be sure....

soon I'm posting my computers specs and pics...after the video cards haha.