Hello, I have a question about if my PSU can handle either a 6870 or 5870. My power supply is rated at 500 watts and is a Thermaltake. It is the Thermaltake TR2 W0379RU 500W ATX 12V v2.2 Power Supply. Thanks for the help.
Make sure that the thermaltake psu really is running at 500W though, I had a 420W thermaltake psu that really ended up running at 350. However you should be fine as long as the voltages and amps, etc match up ok.
Ill post back tomorrow. I hope this info helps a little bit.
there are about 3 different versions of thermaltake tr2. the ones below 430w are a cheap design that cant produce 430w continuous and use cheap components. the older design like the 470w that i own seem to be pretty good, but as they are an older design the power on the 12v rails is more like that of a newer 350w unit. but it is a solid psu. The newer tr2 like you are looking at are supposedly crappy. they are based on the same design as the tr2 RX, the only difference being modular. Those psu's produce their rated power but the one hardware secrets tested produced out of spec ripple and noise when over 70% load. http://www.hardwaresecrets.com/article/Thermaltake-TR2-... hardware secrets say they are all pretty much the same design as the 750w model. there is also a newer tr2 with 80plus but no reviews on that yet. It should be ok with a 6870 depending on the rest of your setup. but it may be pushing close to that 70% mark where the noise and ripple go out of spec and kill your PC slowly but surely. I advise you to upgrade the psu if you want your pc to last.
I was afraid that it wouldn't have the power. Kinda wish now that my case didn't come with a power supply so I could've maybe got a better one. Also what is the opinion of buying used PSU? There is a muskin 550 watt at the local pawnshop which seems to be of much better build quality. Is it a good idea to buy used even if I tested to make sure if it turns on and checked the volts with a multimeter? Also my computer has nothing overclocked has one hd, a athlon x3, 4 fans, dvd rw, and 2 sticks of ddr3. Thanks again.
Should be fine with a 6870 so long as you don't run Furmark . The 5870 uses a little more power than that so I wouldn't feel comfortable running it off that PSU if it's the crappier version. I say upgrade your PSU to something that will let you run two cards comfortably.