Guys, I’m having some serious issues with my PC. This appeared 2 weeks ago and now it happens frequently. When I turn it on it gets powered up but the PC won’t boot, there’s no response. The monitor shows nothing, totally blank and the mouse or keyboard doesn’t work too. No beeps. But all the fans & HDDs are working (HDD LED and fan speeds are really static). The other thing is that I cannot switch it off from the power button (not even the reset button is working) so I have to turn it off directly from the UPS. When I turn it on & off like this a few times it changes this behavior and starts to turn itself off automatically as soon as it is turned on. But after a few tries, eventually the PC boots with a music like 4-beeps (long-short-long-short). Then it shows an error message saying ‘Processor Thermal Trip Error’ and continues to Windows. Sometimes the PC turns itself off one more time after showing that error message and then automatically restarts in a few seconds, after that the usual boot process will happen. If I can get to work it once then the PC runs with no problems. Can play games for hours, no crashes, no blue screens or no restarts! Also I can shut down and turn it on as usual in the rest of the day. Sleep works too. But on the next day (or after keeping the PC turned off for a long time) it will start playing weird again when I turn it on. I tried booting only with the CPU, mobo & memory but the problem still exists. Changing the memory sticks didn’t work either. So I have to keep pushing the power button a hundred times to boot my PC. Now I’m writing this from the same PC. Had to do the same thing in the morning. I don’t think it’s good for the system at all. I believe it’s something bad with the CPU or mobo or could be the PSU too but I’m confused with this Proc. Thermal Trip Error. Anybody has any idea what’s going on? • Intel G31PR • Core 2 Duo E7500 (2.93 Ghz, 3MB) • 3GB DDR2 • Foxconn 9800GT • 500W PSU (not a well recognized brand) • Windows 7 32-bit All temperatures are OK, nothing has been overclocked. Only 3months old except my PSU.
I had a very similar problem until about an hour ago ... I bought a new motherboard and it now works perfect! Mine was the same ... no beeps, no screen, nothing, although there was power. I plugged a new LCD TV into the DVI and that must have blown it ... although it is very strange.
As you said fans are working properly so there is no issue with CPU heating. So, I think there is some problem with SMPS; try replacing it.
