It could be the power supply is flaky. If it is an older cheap one i would
defiantly suspect it. If a capacitor is starting to go bad, it could be
letting some AC into the system. One way to check is if you have a DVM
(digital volt meter) set it to AC volts and put one lead on the black wire
into the hard drive connector and the other led on the red and then the
yellow connector. You should see some voltage, but it should be less than 1
volt.
BTW, if you switch it to dc voltage then you will see the 5 and 12 volts
respectively.
On 5/10/07, Michael Sammartano <
volinaz@cox.net> wrote:
>
> Alan,
>
> It is very likely that you have completed the install correctly, however,
> is the mboard the same make and model of the old one? If not the problems
> are likely to be withe the kernel modules at boot. To repair this I would
> try system repair (found on most newer install disks) to replace the old
> modules with the correct modules.
>
> If you can boot into the BIOS settings, this is likely the issue.
>
> Let me know how you make out..
>
> Mike Sammartano
>
>
>
> ---- Alan Dayley <alandd@consultpros.com> wrote:
>
> =============
> My family's main desktop computer died last week. It had been flaky in
> small ways for a while, like not always recognizing USB flash drives and
> other small things. One day on power up there was no video, no keyboard
> response and a few blinks of the hard drive LED and nothing else.
>
> Debugging by replacing major parts with known good components did not
> solve the issue. Power supply, memory, video adapter change outs one at
> a time did not help. So, I blamed the motherboard.
>
> This evening I replaced the motherboard and CPU with a brand new set. I
> put these in the same case with the previous power supply, memory, etc.
> The new motherboard had built-in video so I did not install the
> previous video card.
>
> On power up, the new board displays the expected BIOS messages and boots
> into GRUB. However, during the boot the motherboard speaker makes a
> clicky, screechy buzz on and off but mostly on. Also the PS/2 keyboard
> LEDs blink right after first power but keystrokes are completely
> ignored. I have not allowed it to completely boot yet, aborting at the
> GRUB menu by either reset button or power button.
>
> So, I am now worried that I have not solved the root cause, like maybe a
> bad power supply. Such a problem could have toasted the original
> motherboard which masked the root cause when trying the known good one.
> Or, I could just have a peripheral connection screwy somewhere.
>
> While I double check my connection work, I ask for any pointers. Has
> anyone on this list seen such symptoms before and found the problem?
>
> Alan
>
>
> --
> Please visit
> http://www.iconnetworksolutions.com
>
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