Tom's Hardware > Forum > Motherboards & Memory > General Motherboard > Help...Removed CMOS Battery and now I have no OS

Help...Removed CMOS Battery and now I have no OS

Forum Motherboards & Memory : General Motherboard - Help...Removed CMOS Battery and now I have no OS

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dave8624   09-12-2007 at 09:15:26 PM

I had to remove my CMOS battery on my ASUS P5N32-E mobo bkz of an overclocking error before post and now after post its says, "DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER"

Please help....

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rwpritchett   09-12-2007 at 09:54:01 PM
- 0 +

When you reset the CMOS, BIOS settings go to default, including such things as boot order, SATA settings, etc. Go into BIOS and set your boot order so that the HDD with your OS is first. If you have RAID setup, you'll need to change from default settings to boot as well.

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Jedi940   09-12-2007 at 09:55:50 PM
- 0 +

This is because when you take out the battery the bios goes back to default settings. The default settings probably look to another drive to boot from before your hard drive. If the Drive it is looking at has a non-bootable disk in it, you will get that error. I would guess that it looking at your floppy drive and you have a disk in it.

You have 2 choices. Either remove all disks in all drives and try again, or
2. Just change the boot order to look at your harddrive first.

Remember, your primary hdd is probably labled as hdd-0 not hdd-1, consult your mobo manual to make sure

------------------------------ GA-965P-DS3 (rev. 3.3) | e6600 @ 3.4 Ghz 425x8 @ 1.42v | Thermalright Ultra 120 Extreme | 2GB Corsair XMS2 4-4-4-12 @ 850 Mhz | 2x160GB WD Raid 0 | 2x250GB Segate Raid 1 | evga 8800GTS 320mb 580/1840 | OCZ 700W PSU | 3dMark06 10346 @ 1280 X 1024
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dave8624   09-12-2007 at 09:58:23 PM
- 0 +

I figured it out, I forgot to re-enable raid (stupid I know) its working now. Thanks.

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Jedi940   09-12-2007 at 10:15:50 PM
- 0 +

Been there, done that. glad you figured it out

------------------------------ GA-965P-DS3 (rev. 3.3) | e6600 @ 3.4 Ghz 425x8 @ 1.42v | Thermalright Ultra 120 Extreme | 2GB Corsair XMS2 4-4-4-12 @ 850 Mhz | 2x160GB WD Raid 0 | 2x250GB Segate Raid 1 | evga 8800GTS 320mb 580/1840 | OCZ 700W PSU | 3dMark06 10346 @ 1280 X 1024
 Reply to Jedi940
rwpritchett   09-12-2007 at 10:34:19 PM
- 0 +

Next time you'll know exactly what to do. Glad you got it working.

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