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# Doomed to fail...

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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.

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.

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Sounds like you need a format... Or maybe two to be one the safe side [wink].

Or maybe even a new power suply.

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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.

##### Link to comment
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.

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