Tech Support Forum - View Single Post - Old PC :: PIII667EB, Abit VA6, Spontaneous Reboot After POST

Valtelino · 01-04-2005, 04:18 AM

A couple of random thoughts.
Did you clear Cmos, & load setup defaults after bios flash?
Unlikely to be the prob, coz it was there before flash, but...

Check all the capacitors on the mobo for signs of swelling, bulging, leaking, etc. A popped capacitor will cause lockups or reboots.
I've had cpus with similar symptoms after an overclocked cpu was overheated. They'll run at lower settings, but won't handle their full Mhz anymore. Can you substitute a borrowed cpu just for testing?

go and buy a $2 Pci video card for testing. It's all about process of elimination.
Random reboots are power related. Why is power being interupted?
Either the psu is faulty, or the mobo, or one of the peripherals is causing power shorts or surges- it can be ram, cpu, or anything that uses power.
I've had it caused by CD, HDD, even a keyboard once.
But, the most common for me (in order) were PSU, mobo (usually popped caps) then ram, then CDRom drives !
Abits are renowned for popped caps.

01-04-2005, 04:18 AM	#2 (permalink)
Valtelino Member Join Date: Sep 2004 Location: BrisVegas Australia Posts: 173 OS: WinXP	A couple of random thoughts. Did you clear Cmos, & load setup defaults after bios flash? Unlikely to be the prob, coz it was there before flash, but... Check all the capacitors on the mobo for signs of swelling, bulging, leaking, etc. A popped capacitor will cause lockups or reboots. I've had cpus with similar symptoms after an overclocked cpu was overheated. They'll run at lower settings, but won't handle their full Mhz anymore. Can you substitute a borrowed cpu just for testing? go and buy a $2 Pci video card for testing. It's all about process of elimination. Random reboots are power related. Why is power being interupted? Either the psu is faulty, or the mobo, or one of the peripherals is causing power shorts or surges- it can be ram, cpu, or anything that uses power. I've had it caused by CD, HDD, even a keyboard once. But, the most common for me (in order) were PSU, mobo (usually popped caps) then ram, then CDRom drives ! Abits are renowned for popped caps. Last edited by Valtelino; 01-04-2005 at 04:20 AM.