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Newly built computer unstable

Trish's Escape from Hardware Hell Help Board » Hardware » ...All the Rest » Newly built computer unstable « Previous Next »

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Mike McGinn
Posted on Sunday, August 11, 2002 - 5:12 am:   

I've recently put together a computer. Abit KR7A/RAID mb, AMD 1900 processor, Visiontek 5864 video card, S/B audio card, WinXP home and the rest of the necessary components. My problem is that the system is unstable. Everything seems ok then it will reboot without warning. I've run benchmarks and everything seems ok, no conflicts with IRQ's. I was told it was most likely a problem with the S/B audio card so I replaced it with a different make and model... no luck. I've done 3 or 4 clean installs and I've updated the BIOS. CPU temp runs at about 49c. Help..........
v (Vera)
Posted on Sunday, August 11, 2002 - 12:16 pm:   

Is the PS you chose up for the job? An inadequate PS can cause spontaneous reboots. You could check for their recommendations.
Posted on Sunday, August 11, 2002 - 4:34 pm:   

The PS is 400w or at least it says it is. It came with the case. Is there a way of checking it? Thanks
Posted on Sunday, August 11, 2002 - 5:47 pm:   

could be bios settings as well, just to add.... might try checking them. had that problem with memory timing on my ram once, too fast and it was unstable. the power supply should have enough oomph to do the job, being a 400watt.
Posted on Sunday, August 11, 2002 - 8:02 pm:   

Could you explain in more detail. What BIOS settings would need to be changed???
Posted on Monday, August 12, 2002 - 3:41 pm:   

memory timings (ram), usually they are fine as default values, but if you set them too high, they can cause instability in the system. if you can set them... that is. my bios in my older board on the other pc will let me reset them to faster or turbo mode. but too fast can cause the system to lock up, and experience what you describe, could be an incompatibility too from another component, as you were told. it's hard to say what it is without sitting in front of the pc from here, and seeing exactly what the system is doing when it reboots itself or locks up.

it's more of take all your extra cards out except the necessary video card, ram, and processor, then see if it does it, and add components until it does it again, or play with the bios settings to see if you can correct it, if.. it does it with a bare setup. then you are fairly certain that you have a problem with that component and another. hit or miss, i'm afraid, and time consuming. but that's what got me into this in the first place. hehe.

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