Whenever I boot a computer from cold, I'm always slightly nervy until the OS had loaded, this is probably from the number of times seemingly OK equipment has just coughed up blood. Well, today was the debut of my laptop HD problem... The BIOS fails to detect the drive, so it spits out the immortal words "Operating System Not Found". So I reboot, get same message... reboot again, tada! It's "working" again. I have a recent backup(yesterday evening), so data loss isn't a problem, instead merely just the inconvenience of being without my laptop. Curious about what state the HD is actually in, I ran ScanDisk, which returned no errors, and I ran a SMART viewer, which also said the drive was fine.. I'm stumped.
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ApochPiQ
My workstation's hard drives are like that. They take a good 20 seconds to fully spin up from cold, so invariably the first boot attempt fails. Nothing at all wrong with the drives, though.
February 05, 2006 08:27 PM
Sounds like you need a format... Or maybe two to be one the safe side [wink].
Or maybe even a new power suply.
Or maybe even a new power suply.
February 05, 2006 09:08 PM
Does the SMART tool let you check the error log? I've gotten temperature warnings before on my shell server during summer heat-waves that prevented the BIOS from booting properly (as a "critical error" still persisted in the drive log), but after a reboot it proceeded like normal.
Make sure all the raw readings are within range; usually if I get write errors I'm okay but read errors signify your disk is about to go tits-up.
Make sure all the raw readings are within range; usually if I get write errors I'm okay but read errors signify your disk is about to go tits-up.
February 06, 2006 01:14 AM
Quote:
My workstation's hard drives are like that. They take a good 20 seconds to fully spin up from cold, so invariably the first boot attempt fails. Nothing at all wrong with the drives, though.
Curious, I had suspected this might be the case, but the disk has never lost the race with the BIOS before.
Quote:
Sounds like you need a format... Or maybe two to be one the safe side.
Or maybe even a new power suply.
I was going to do a format, but I've just completed the full-blown 5-step WinXP scandisk and it didn't pick up any errors. If the scan had even detected a single bad sector then I'd have reformatted the disk. How would I go about checking the power supply? From the looks of the laptop power supply(and battery) I'd assume everything just runs off(hopefully stable) +12V rail, unless they've managed to tuck a transformer inside the laptop that defies the laws of physics [smile].
Quote:
Does the SMART tool let you check the error log? I've gotten temperature warnings before on my shell server during summer heat-waves that prevented the BIOS from booting properly (as a "critical error" still persisted in the drive log), but after a reboot it proceeded like normal.
Make sure all the raw readings are within range; usually if I get write errors I'm okay but read errors signify your disk is about to go tits-up.
The tool I'm using(DiskCheckup by PassMark), doesn't let me view the log, but the export of results doesn't show anything untoward:
SMART ATTRIBUTES:
ID Description Raw Value Status Value Worst Threshold
---------------------------------------------------------------
1 Raw Read Error Rate 0 OK 100 100 51
3 Spin Up Time 3776ms OK 81 53 11
4 Start/Stop Count 286 OK 100 100 0
5 Reallocated Sector Count 0 OK 100 100 11
7 Seek Error Rate 0 OK 100 100 51
8 Seek Time Performance 0 OK 100 100 11
9 Power On Time 224608 OK 100 100 0
A Spin Retry Count 0 OK 100 100 51
C Power Cycle Count 135 OK 100 100 0
BF Gsense Error Rate 55756 OK 95 95 0
C2 Temperature 52 C OK 82 64 0
C3 (Unknown attribute) 86741568 OK 100 100 0
C4 Reallocation Event Count 0 OK 100 100 0
C5 Current Pending Sector Count 0 OK 100 100 0
C6 Offline Scan Incorrect. Sector Count 0 OK 100 100 0
C7 Ultra ATA CRC Error Count 0 OK 200 200 0
C8 Write Error Count 0 OK 100 100 51
C9 Off Track Errors 0 OK 100 100 0
DF Load Retry Count 143 OK 100 100 0
E1 Load Cycle Count 225462 OK 78 78 0
FF (Unknown attribute) 0 OK 100 100 51
Although saying that, the temperature does look like it might be of concern as I think the HD shutoff is about 60, I think a strip-down and rebuild might be in order, although I'll be damned if I know how to disassemble it, let alone put it back together [smile].
Thanks for the help guys.
February 06, 2006 04:50 AM
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