My current specs:
Q6600
Asus P5Q Pro
2x2GHz DDR2 800MHz
XFX 9800gx2
Samsung 500Gb 7200rpm
PSU OCZ ModXstream 780W


Hi,

I am having this problem for couple of months now. About a year ago I have upgraded to my current Graphic's and PSU on my PC, that time my motherboard was ASUS p5n-e. Everything was working fine for about 5 months, then I started to have a problem every odd now and then when I powered the PC on after powering off it wouldn't boot back on immediately. It powered up the mobo, fans started to run high rpm, harddisk ticks for about 3 seconds then it stops, no lights on the DVD drive, no sign of the output to screen (didn't even wake the screen up). I had to wait for about 15 minutes for it to boot again. This started to be every time after trying to power the PC even after some time (30 min) after powering the PC off. Then it started to happen more often when I was trying to power the PC even after it was switched off for the whole night. I tried to power on, get the same thing, fans high rpm, couple of ticks from HDD, then nothing, just fans running until I switched off. Wait 15 minutes, sometimes it boots OK, sometimes I had to repeat the exercise for like two hours to get it boot. Imagine!
After like two months it just wouldn't boot at all. After like two days of occasional sessions of switching on and off I gave up. Reseated everything.. tried again.. nothing... So I left only mobo and CPU, tried combinations of RAMs, 2 different HDD's to boot from, without DVD drive, tried my old Graphics and new Graphics, tried to boot with old or new PSU and possible variations and combinations of this hardware but no luck. I came to conclusion that this could be only mobo, so I changed for brand new mobo which I have currently, put the hardware in and it boots on the first go. Problem solved! So I live with it for next two months until like a week ago when I try to boot my PC in the morning and same old scenario, fans on high rpm... and nothing. Switched it off, then back on boots fine. Thought one odd time doesn't count. It happened another 4 times since and I am starting to be slightly paranoid. Extremely paranoid to be honest as I really wouldn't like to be buying a new mobo after two months of using it. If someone would have any suggestions I would be really really thankful.

Thanks for looking.

I'm just taking a guess that your PSU has got issues.

It may be cooking the mobo... (just a guess)
What model do you have?

Hi, thanks for your reply,

My PSU is OCZ ModXstream 780W as this 8 pin pci connector to supply the graphics

hmm.. I was thinking maybe it was a "noname" but OCZ is good.

sorry, got me on this one. Id have to point the finger at the PSU, but its so random... very strange

You can try a step just to check if the PSU is working fine or not...
Just try to eject the CD drive when you start your computer... This will tell you if the PSU is having issues or not...

Hi b_harish123, thanks for your post, the CD rom won't work when this happens. Seems like it is not getting a power at all. It started to be pretty regular thing since my first post, won't start on the first go now, I try second time and it boots no probs.
I have also added one extra 12cm chasis fan for better air flow and cooling.
But Is that really a sign of faulty PSU if the CD rom won't work?