edsmaffs Posted August 3, 2009 Share Posted August 3, 2009 I've recently bought a VX450W PSU to replace my old PSU in preperation for adding a new GPU to my system. When I put the new PSU in the system fails to boot or to show any sign on the monitor. However, the light at the front of the tower does turn on, and the keyboard lights start flashing. This has confused me as it suggests that power is still reaching the system somehow. Does this mean that the problem is likely to be a faulty PSU, or that I hadn't installed one of the cables properly. I'm pretty sure that the rest of the system is fine. Reinstalling the old PSU allows the computer to run perfectly well, no problems in loading. Is it an issue that I live in the UK? The impression I got was that it auto-selected the right voltage setting though, so this shouldn't be a problem. Thanks for your help. Hopefully it'll turn out to be something simple! Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted August 4, 2009 Corsair Employees Share Posted August 4, 2009 Please try the test described in this post and if it will still not power on then please use the On Line RMA Request Form and we will be happy to replace it. Link to comment Share on other sites More sharing options...
edsmaffs Posted August 6, 2009 Author Share Posted August 6, 2009 Ok, the 'paperclip test' allowed the PSU to spin up fine. I also tried disconnecting the 24-pin plug from the motherboard and plugging in the old PSU to that; the computer then powered up fine, gave a signal to the monitor. (Everything else was plugged into the VX450W) Does this suggest one of the cables is faulty? Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted August 6, 2009 Corsair Employees Share Posted August 6, 2009 Do you have the latest BIOS on your MB? If not please try that and see if that will solve the problem. Link to comment Share on other sites More sharing options...
edsmaffs Posted August 7, 2009 Author Share Posted August 7, 2009 I've received a replacement from my reseller, I'll try fitting it over the weekend or next week to see if it works any better. Updating the BIOS scares me a little... Thanks for the support in any case :) Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted August 7, 2009 Corsair Employees Share Posted August 7, 2009 NP please do let us know what happens! Link to comment Share on other sites More sharing options...
edsmaffs Posted August 14, 2009 Author Share Posted August 14, 2009 RMA'd the PSU through my reseller, the replacement works fine and the system is working brilliantly with the new graphics card! Not sure what was wrong with the other one, but nevertheless thanks for your support. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted August 17, 2009 Corsair Employees Share Posted August 17, 2009 NP Thanks for letting us know! Link to comment Share on other sites More sharing options...
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