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System Can't Get Past Black DOS Window bco Bad Floppy Drive?
Just troubleshot a family member's PC. ASUS mobo (so now we're
on-topic....) They reported periodic system freezups (supported by many, many Event log entries). They also reported that it took them 5-6 tried to get the thing to boot (pulling the AC power plug between tries). I noticed it was making a lot of noise, opened it up, saw that the cooling fins on the CPU heat sink were totally clogged with dust so the fan was blowing on a flat surface instead of through the fins. Cleaned it out, went for a re-boot, but the thing kept hanging at the DOS-like stage where it says "Press F2 for (BIOS) setup". I'd press F2 and it would acknowledge "Entering Setup", but hang there - same as the user reported. To make a long story short, I wound up yanking the floppy drive and the problem went away - or, at least, it's booted with no problems over a dozen times since. My guess: multiple problems. - The system freezes were caused by an overheated CPU, supported by the user's report that it got worse with use and was mitigated by leaving the PC in standby mode for a few hours. - The boot issue was caused by the floppy drive. System was taking some sort of inventory of devices and, when it got to the bad drive just hung there. Does this hold up to scrutiny by somebody who actually knows something? My main problem is the intermittent nature of the startup issue. Didn't observe it myself, but I believe the user. How could the floppy drive be bad 5 out of six times, but be OK that one time? -- PeteCresswell |
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System Can't Get Past Black DOS Window bco Bad Floppy Drive?
On 10/21/2010 2:10 PM, (PeteCresswell) wrote:
Just troubleshot a family member's PC. ASUS mobo (so now we're on-topic....) They reported periodic system freezups (supported by many, many Event log entries). They also reported that it took them 5-6 tried to get the thing to boot (pulling the AC power plug between tries). I noticed it was making a lot of noise, opened it up, saw that the cooling fins on the CPU heat sink were totally clogged with dust so the fan was blowing on a flat surface instead of through the fins. Cleaned it out, went for a re-boot, but the thing kept hanging at the DOS-like stage where it says "Press F2 for (BIOS) setup". I'd press F2 and it would acknowledge "Entering Setup", but hang there - same as the user reported. To make a long story short, I wound up yanking the floppy drive and the problem went away - or, at least, it's booted with no problems over a dozen times since. My guess: multiple problems. - The system freezes were caused by an overheated CPU, supported by the user's report that it got worse with use and was mitigated by leaving the PC in standby mode for a few hours. - The boot issue was caused by the floppy drive. System was taking some sort of inventory of devices and, when it got to the bad drive just hung there. Does this hold up to scrutiny by somebody who actually knows something? My main problem is the intermittent nature of the startup issue. Didn't observe it myself, but I believe the user. How could the floppy drive be bad 5 out of six times, but be OK that one time? It can happen this way, especially if the floppy diskette drive was designated as the first (and only) boot device and it failed. Or, IOW, the hard drive was not designated as a secondary boot device. Removing the FDD forced the bios to re-take its device inventory and making the hard drive the new boot device. As for the intermittent nature, the one time the FDD worked properly usually meant that it had reset itself to a normal start-up state after probably "timing out" and failing. GR |
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