ABit BH6- no boot

[skee]

Need input on where to go next. Power supply in PC crapped out, replaced with a new one of equal wattage. After turn on, machine will not boot, black screen. Pulled all boards except video card, no boot. Substituted different videocard, nothing. Tried a different CPU & different ram, nothing. Discharcharged CMOS & checked battery voltage. Checked all voltages from new supply & all are ok. Tried new keyboard, nothing. Any suggestions would be appreciated.

 

[Leon Rowell]

Skee,

Did you try resetting the CMOS (with power cord removed)? If the new power supply isn't as good as the old one quality wise, maybe it isn't up to the task. I always replace power supplies with the next size larger in wattage. Seems like we are always adding more hardware to the computer but the poor power supply is expected to take up the slack with no question. Anyways, some of the new generic power supplies are pretty lame.... Just a thought.

Leon Rowell

skee wrote:

Need input on where to go next. Power supply in PC crapped out, replaced with a new one of equal wattage. After turn on, machine will not boot, black screen. Pulled all boards except video card, no boot. Substituted different videocard, nothing. Tried a different CPU & different ram, nothing. Discharcharged CMOS & checked battery voltage. Checked all voltages from new supply & all are ok. Tried new keyboard, nothing. Any suggestions would be appreciated.

 

[skee]

I did try that. Thanks for the reply. After inspecting the motherboard closely, I found a burnt & disconnected torrid coil (L11) behind the keyboard/mouse connector. If I can find the value (mH), I will replace it. "Leon Rowell" wrote:

Skee,

Did you try resetting the CMOS (with power cord removed)? If the new power supply isn't as good as the old one quality wise, maybe it isn't up to the task. I always replace power supplies with the next size larger in wattage. Seems like we are always adding more hardware to the computer but the poor power supply is expected to take up the slack with no question. Anyways, some of the new generic power supplies are pretty lame.... Just a thought.

Leon Rowell

skee wrote:
Need input on where to go next. Power supply in PC crapped out, replaced with a new one of equal wattage. After turn on, machine will not boot, black screen. Pulled all boards except video card, no boot. Substituted different videocard, nothing. Tried a different CPU & different ram,
nothing. Discharcharged CMOS & checked battery voltage. Checked all voltages from new supply & all are ok. Tried new keyboard, nothing. Any suggestions would be appreciated.

 

[Mark H]

You'll probably have to change the caps too,, check previous posts for bad caps

skee wrote:

I did try that. Thanks for the reply. After inspecting the motherboard closely, I found a burnt & disconnected torrid coil (L11) behind the keyboard/mouse connector. If I can find the value (mH), I will replace it.

 

[Homie]

The coil probably over-heated because of leaky caps.... See my web page below, you can re-wind the coil or I may have a used one I can sell .