Keasis Posted March 5, 2012 Share Posted March 5, 2012 Hello, I've been using my computer for a while now without much problems, I did upgraded some components over time, but mostly it's been stable and working great. Yesterday, my computer failed to boot up after I put it on standby the previous evening. There was no POST, no sound or led indication of any problems on the motherboard. I tried restarting it a couple of times (power off/on, unplugging it, etc.). At some point the computer did start up but then it stopped. I noticed that the harddisks were spinning up, but only to a certain extent. To be sure, I swapped out the RAM to a single stick and placed it in all the different slots. But it didn't work. Without RAM I could get the long beep (error with RAM/Missing RAM) at boot, but only once. So I started to pull the computer down to the bare minimum, only the motherboard, CPU and HSF, (no videocard, harddisks or peripherals connected) to see if I could get any boot codes. I intended to replug everything one at a time, to find the faulty component, however the minimal set-up did not even boot up. On the motherboard however, the single green LED indicating stand-by power is lit. So I suspect the PSU is failing one of the power-on tests which prevents the motherboard from initializing. Could anyone give me any insight if that could be correct? What next step should I take? Greetings, Rob. Link to comment Share on other sites More sharing options...
peanutz94 Posted March 5, 2012 Share Posted March 5, 2012 Run the paper clip[ test found in the stickys above. But it sounds like it could be a psu issue or a MB problem. If it comes down to it i would swap out the PSU before dismantling the entire system to send the board out , if that is an option for you. If you have access to a multi meter you can check voltages on all rails at the 24 pin connector Link to comment Share on other sites More sharing options...
Keasis Posted March 5, 2012 Author Share Posted March 5, 2012 The PSU has been plugged into the system during the tests. Wouldn't the paperclip test only be needed for an unconnected PSU? Link to comment Share on other sites More sharing options...
mcj66106 Posted March 5, 2012 Share Posted March 5, 2012 No do not use a paperclip on the 24 pin connector while it is plugged in to the computer. Link to comment Share on other sites More sharing options...
Keasis Posted March 5, 2012 Author Share Posted March 5, 2012 No do not use a paperclip on the 24 pin connector while it is plugged in to the computer. Hahaha :D I had no intention of doing that. What I meant to say was, that using a paperclip to short the two wires and putting something on one of the connectors is more a way of simulating 'plugging' in the PSU. With the paperclip trick its possible to test the power-up of the PSU without needing any other components. Seeing as the PSU has been plugged in on a regular system, it would seem redundant? I should mention that I experienced some instability with the system before, but wrote it off on account of the videocard, which was due for an upgrade for a while now. Videocard has been replaced, but might be worth mentioning nonetheless. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted March 6, 2012 Corsair Employees Share Posted March 6, 2012 Well you should connect a HDD and a case fan so there is a small load on the PSU when doing this test. Link to comment Share on other sites More sharing options...
Keasis Posted March 7, 2012 Author Share Posted March 7, 2012 It has been connected properly to a (previously) working system. So talking about putting a load on it, it has. The PSU itself seems responsive enough, the fan starts when powered, and it provides current towards the HSF and anything connected on the PCI-e powerconnector. But.... I managed to test the MB with another PSU. It seems the MB is non-responsive. Is there any way the PSU could have caused the problems with the MB unnoticed? If not, I'd like to continue using it with a new MB. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted March 8, 2012 Corsair Employees Share Posted March 8, 2012 It is possible but rare, I don't have a problem replacing the PSU if you like. Please use the link on the left and request an RMA if you feel it needs to be replaced. Link to comment Share on other sites More sharing options...
Keasis Posted March 12, 2012 Author Share Posted March 12, 2012 Appreciate the offer! However, now when most signs indicate it's the motherboard, there seems no reason for you to replace it. I'm configuring a new system, if I still experience any instability, I'll let you know Again appreciate the help and service from the forum and corsair. Made me glad I chose this brand. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted March 15, 2012 Corsair Employees Share Posted March 15, 2012 NP and please use know how you make out! Link to comment Share on other sites More sharing options...
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