Originally posted by: Roomraider
Under heavy SLI gaming conditions my rig would shut down in less than 5 minutes, just as if I pressed the power off button during the game. Now keep in mind these shutdowns were not system crashes or BSOD's, because there were 0 errors in the event logs.
When I built both my rigs I did lots of research, power supply was at the top of the list due to SLI power demands. I grabbed 2 Thermaltake W0049 680 watt Purepower units as soon as they hit the market. To sum it all up I spent weeks changing out different hardware and reloading OS's because I just refused to believe that Themaltake could have a bunch of brand new power supplies that would only fail under SLI mode. Thermaltake RMA'd me a new 1 and guess what? Same problem!!! I switched over to an Nvidia SLI Certified unit and never had another shutdown & I'm now able to overclock.
Problem identified (Design Flaw) Warning to SLI users, do not invest in a power supply that does not seperate the SLI connectors. Namely 7800 GTX's will pull over amps from a single 2 connector SLI line. Spend a lil more $$$$$ and buy an (Nvidia Certified SLI) power supply. Don't make the same mistake i did. Don't buy a Thermaltake!!!!!!!!!
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I was just wondering if the PS you're talking about is the one with 38 amps or the one with 52 amps. I was just starting a search on power supplies and came across the TT W0049. It sounded impressive on their web site. I went to order it though and noticed most online retailers are selling the 38 amp, ATX 12V 2.0. The TT website lists the W0049 as 52 amps, ATX 12V 2.2. Which one do you have? If you have the 52 amp model I'll be glad I didn't order it yet. Thanks and good luck in your hunt for a better PS