Callist0 Posted June 24, 2009 Share Posted June 24, 2009 Hello, I have recently bought an Nvidia Geforce 250 GTS graphics card and installed it in my system which has an HX520 PSU (full system specs in my profile). The box specifies that a 630+W PSU is recommended, but that the card should run on a 450+W PSU with at least 24A on the +12V rail. Now I checked and the HX520 does have that amperage on the +12V rails, however my system has been experiencing random lockups ever since installing the graphics card. These lockups occur at random intervals (sometimes taking minutes, sometimes hours before occuring) when the system is stressed (playing games), causing the whole system to lock, with nothing to do but hit the reset button. I have already verified that it is not a driver issue (as far as I've been able to tell) nor a heating issue (the card runs between 60 and 70 degrees Celcius under stress) so what remains is my PSU. I went in and redid my wiring to make sure it wasn't some connector that was dislodged upon installing. The real question that remains is; is this PSU capable of running this graphics card, or should I consider upgrading as the box suggests? Link to comment Share on other sites More sharing options...
Wired Posted June 24, 2009 Share Posted June 24, 2009 As per the Corsair PSU Finder, it should be just fine. Link to comment Share on other sites More sharing options...
Callist0 Posted June 24, 2009 Author Share Posted June 24, 2009 Well, that at least gives me a little peace of mind, knowing I probably won't have to blow another 100-or-so euros on another PSU while this one is still perfectly okay. Still makes me wonder what is causing the lockups. I'll have to look into it some more... Thanks for the swift reply, I hadn't noticed the handy lookup tool :) Link to comment Share on other sites More sharing options...
Yellowbeard Posted June 24, 2009 Share Posted June 24, 2009 What card were you running before you installed the 250? Link to comment Share on other sites More sharing options...
Callist0 Posted June 25, 2009 Author Share Posted June 25, 2009 Since I got this system I started with a geforce 8800 GT, which fried shortly after installation (for some unknown reason). It was replaced by a geforce 9600 GT until I got the 250 GTS. The previous one (9600) ran on the same drivers this one did (185.85, and later 185.50 to ensure the locking up was not driver related). While the 9600 didn't give me any issues, even under the supposedly buggy 185.85 driver, after installing the 250 it started locking up for some reason. Link to comment Share on other sites More sharing options...
Yellowbeard Posted June 25, 2009 Share Posted June 25, 2009 Try running a driver cleaner, uninstall all Nvidia graphic related stuff, and then reinstall the latest driver. Link to comment Share on other sites More sharing options...
Callist0 Posted June 27, 2009 Author Share Posted June 27, 2009 Alrght, I decided to test for a few days with some other games to see if the error would occur. It did today. I removed the old driver and ran Driver Sweeper to remove any remnants in safe mode. Currently running 186.16 drivers. Here's to hoping that solved the problem... A seperate and maybe related question; When running OCCT to check on my voltages, I noticed that the voltage on the 12V rail was at 10,38. Is this normal? Link to comment Share on other sites More sharing options...
Yellowbeard Posted June 27, 2009 Share Posted June 27, 2009 Do not rely on software voltage readings as they are notoriously unreliable. If you are having issues that you think may be voltage related, you'll need to ckeck the voltage with a meter to be certain. Link to comment Share on other sites More sharing options...
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