Biostar MB Won't Boot

[Dieselhead]

I have a Biostar G31-M7 TE MB which won't boot up reliably. It will start the process, but won't reach POST. It keeps trying to boot about every 10 seconds. If I hit Reset at just the right time, it will boot. The CMOS battery is OK.

Any ideas?

 

[ahenkel]

1. Did you reset bios
2. if you have multiple sticks of ram pull each and test one at a time.
3 remove any hardware not required for boot. If it has onboard video remove video card. This means minimal hardware, PSU. Mobo. CPU, one stick of ram. Test for boot. If it boots add hard drive. Test again.

 

[denis280]

What are all the system spec.and is this a new built

 

[Dieselhead]

1. I haven't reset BIOS. Are you talking about using the "Clear CMOS" header?
2. It does have 2 RAM sticks.
3. I'll try the minimum equipment and see if it boots up. I have put the HDD in another machine as it appears OK. No Video card.
4. The MB is about 3 1/2 years old. Worked great until about two weeks ago.
5. Pent 2 Duo CPU, 2 GB RAM, 320 GB HDD running Windows XP Pro.

 

[Ketchup]

So, once it does boot, everything runs fine (games, etc)?

I would agree with trying a CMOS reset first.
I would agree that if that doesn't work, try just one stick of RAM.
If that doesn't work, you may want to try re-flashing the BIOS.
If that doesn't work, sounds like an internal issue. Are you overclocked? Because it kind of sounds like something may not like booting cold. Does this occur during a warm boot, or just cold ones?

 

[Dieselhead]

Once it boots up, everything works normally. It's not overclocked. I haven't tried a warm boot, just cold boots so far.

 

[Dieselhead]

I fixed the problem. I was just about to install a new motherboard when I found a bulging 1000 uF 10 V electrolytic capacitor. I replaced it and the motherboard started booting reliably every time!

 

[Dr-Kiev]

Capacitor bulged due the too high temperature. Check for the enough cooling inside the case, to avoid bulging in future for the rest capacitors.