Matthias Posted August 14, 2009 Share Posted August 14, 2009 Here my story: Yesterday I replaced my PSU with a more powerful HX850W. After I pressed the power button the system posted like expected but could not boot, the error message was no boot disk found. So I reopened the system to check the cabling, everything was fine but there was no noise coming from the disks. At that time I thought that there is no power on the molex connector, I tried the other connectors but nothing. Then I removed the HX850W and connected the old PSU - now the really sad part - still the same problem - no disks found. I've checked the bios and saw that the DVD and the floppy drive was also gone, the front LED was also dark. Than I measured the voltage with a ammeter, the result was that both PSUs deliver exactly 14V. To exclude that something strage happened during the day I've connected a old 2.5" HD to the HX850W and let the system open to see whats happening when I switch it on. What do you think? For about 2 seconds there was a strange noise (like krrkrrkrr) coming from the disk, than it was silent - RIP. I'm not a electrician but I know that not only over voltage can destroy a electrical device, you can do that also with a high frequency. But it would be interesting when anybody could explain that. The power cables that are connected to the mb and the gc are fine, at least theses parts are still alive. Now my questions: I know that the replacement of the PSU is no problem, but what is with the 4 HDs the DVD and the floppy drive, is this included in the PSU warranty? Should I bring back only the PSU or all affected parts? Regards Matthias Link to comment Share on other sites More sharing options...
Wired Posted August 14, 2009 Share Posted August 14, 2009 To clarify, your meter showed both your old and your new PSU delivering 14v? I'm wondering if something outside of the PSU was screwing them up, or if the meter was on a wrong setting, or if the meter itself is screwed up. Link to comment Share on other sites More sharing options...
Matthias Posted August 15, 2009 Author Share Posted August 15, 2009 I think the 14V doesn't matter, I saw a lot of PSUs that have a 10-20% higher voltage when there is no consumer. Outside from the PSU - never. I can repeat it. Link to comment Share on other sites More sharing options...
Wired Posted August 15, 2009 Share Posted August 15, 2009 The 12V line is supposed to be within 5%. What do you mean "when there is no consumer"? Link to comment Share on other sites More sharing options...
Matthias Posted August 15, 2009 Author Share Posted August 15, 2009 when nothing else than the ammeter is connected to the 12V lines. 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 And when you change the PSU over did you use the modules cables that came with our PSU or the ones from your old PSU? Link to comment Share on other sites More sharing options...
Matthias Posted August 17, 2009 Author Share Posted August 17, 2009 That one that came with the corsair PSU. Why do you ask, the cables are standardized? Link to comment Share on other sites More sharing options...
Wired Posted August 17, 2009 Share Posted August 17, 2009 They are not standardized between models. 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 And if you used someone else cables with our PSU that might be the cause. But if you used our cables more than likey it was just a failing drive but I don't have a problem replacing the PSU if you like, 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...
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