My computer crashes upon booting into windows xp or into the linux graphical interface, or after running either os for a few hours. So far I've replaced:
-the cpu (athlon thunderbird 1.4 ghz, retail boxed)
-the ram (crucial)
-the motherboard (fic ad11, then an abit)
-the graphics card (geforce2, geforce4)
Nothing works (and this is getting expensive)! Lowering the FSB from 133 to 100 mhz makes no difference. Even severely underclocking the system does not help. The system temperature has always been fine (never exceeding 62 degrees).
Just yesterday I noticed that the core voltage of my athlon was 1.87, though it is supposed to be 1.75. Even overclocking web sites don't recommend running an athlon thunderbird beyond 1.85). I couldn't imagine why this was, since I hadn't overclocked my system, and I had enabled automatic voltage regulation. So I figured I'd change the voltage setting to manual and set it to 1.75 myself. Shockingly, my motherboard monitoring software reported the core voltage remained at 1.87. So, I manually lowered the voltage to its lowest setting (down .05 o 1.7), and my system similarly reported a drop in voltage of .05 to 1.81. I though my problems were nearly solved. (and here's where we get to the psu...)
However, stability did not improve at all. I figured perhaps 1.81 was still too high, and I would need a motherboard that could properly regulate it's voltage. But, recall that I had at one point replaced the motherboard, with no success. So now my theory is that my problem doesn't stem from my motherboard, but from something causing the motherboard to deliver too much voltage. Pretty much the only component in my system that has not been changed is the psu. Moreover, I noticed that all the voltages were a bit high. What should be 12 volts is 12.25, 5 volts is 5.05, and 3.3 volts is 3.5 volts. Still, I've heard that this variation is normal. And, isn't the concern more frequently that the voltage is too low? Maybe it is my motherboard that is defective, since 1) Who's ever heard of a psu providing too much voltage? and 2) Even if the psu is poorly regulating the level of voltage, wouldn't a functional motherboard account for some variation in the psu voltage before delivering the current to the cpu core?
Any advice would be greatly appreciated.
-the cpu (athlon thunderbird 1.4 ghz, retail boxed)
-the ram (crucial)
-the motherboard (fic ad11, then an abit)
-the graphics card (geforce2, geforce4)
Nothing works (and this is getting expensive)! Lowering the FSB from 133 to 100 mhz makes no difference. Even severely underclocking the system does not help. The system temperature has always been fine (never exceeding 62 degrees).
Just yesterday I noticed that the core voltage of my athlon was 1.87, though it is supposed to be 1.75. Even overclocking web sites don't recommend running an athlon thunderbird beyond 1.85). I couldn't imagine why this was, since I hadn't overclocked my system, and I had enabled automatic voltage regulation. So I figured I'd change the voltage setting to manual and set it to 1.75 myself. Shockingly, my motherboard monitoring software reported the core voltage remained at 1.87. So, I manually lowered the voltage to its lowest setting (down .05 o 1.7), and my system similarly reported a drop in voltage of .05 to 1.81. I though my problems were nearly solved. (and here's where we get to the psu...)
However, stability did not improve at all. I figured perhaps 1.81 was still too high, and I would need a motherboard that could properly regulate it's voltage. But, recall that I had at one point replaced the motherboard, with no success. So now my theory is that my problem doesn't stem from my motherboard, but from something causing the motherboard to deliver too much voltage. Pretty much the only component in my system that has not been changed is the psu. Moreover, I noticed that all the voltages were a bit high. What should be 12 volts is 12.25, 5 volts is 5.05, and 3.3 volts is 3.5 volts. Still, I've heard that this variation is normal. And, isn't the concern more frequently that the voltage is too low? Maybe it is my motherboard that is defective, since 1) Who's ever heard of a psu providing too much voltage? and 2) Even if the psu is poorly regulating the level of voltage, wouldn't a functional motherboard account for some variation in the psu voltage before delivering the current to the cpu core?
Any advice would be greatly appreciated.
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