Is it possible I fried my motherboard?

Slugbait

Elite Member
Oct 9, 1999
3,633
3
81
Machine was fine last night, every day for over three years. Got a new mobo and chip, so I pulled my P2B-LS out and installed it in a different case.

The weird thing was, after setting it down then picking it up, I noticed some of the pins for the front panel had been bent (power switch, reset, HDD LED, etc), but not all. I gingerly bent them back again.

Then bootup gave me a repeating beep that sounded like a French police siren, but no bios screen. I tried putting it back in the original case with original config, machine wouldn't boot at all, not even a beep. Tried two different video cards, two different IDE cables, two different boot devices (SCSI vs IDE), etc. CPU fans were spinning, but that's it.

So I went bare essentials: I jumper-disabled SCSI and LAN. I jumpered-off the keyboard power. I used a single IDE boot drive (master) and CD (slave), floppy and video card only. The hard drive wouldn't spin up, the CD had no power (couldn't open the door, LED dead), still not bios screen, etc. So I unplugged the IDE cable from the primary, and voila! The drive spun up, the CD suddenly had power.

Any ideas of what I may have done wrong? Or is the blasted thing scrap silicon?
 

Sniper82

Lifer
Feb 6, 2000
16,517
0
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Are you using same ram in the P2B-LS as before? The P2B-LS is the mobo your talking about that might be dead right? Anyway have you tried clearing the CMOS and tried nothing but CPU,video and ram to see if it does anything?

Also make sure everything is seated properly.

One last thing you can try running the mobo out of the case. Something might be shorting it out.
 

smp

Diamond Member
Dec 6, 2000
5,215
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Yes .. maybe a memory problem. The suggestion to take the mobo out of the case is a good one too, seat it on an anti static bag and hook everything up like that. Reseat the memory and try using the same sticks as before.
 

Slugbait

Elite Member
Oct 9, 1999
3,633
3
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OK, the repeating memory beep makes sense...I remember pulling one stick cuz I wanted to put it in a different machine (got all four banks filled, 896 total). Then I put the stick back again before putting it back into its original case, rebuilding the original config, and that beep stopped...one puzzling thing solved, tho' (thx).

I'm certain the IDE cable is plugged in correctly, the board clearly states where pin 1 is.

Didn't think about clearing the CMOS. I'll also try reseating *everything* on the mobo, see if that does something. And I'll try it on an anti-stat bag.

Thanks for the suggestions and info, I'll let ya know how it goes
 

Slatz

Member
Dec 17, 2001
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This may sound picky, but I personally wouldn't rest the mobo on an anti static bag., and if you do make sure it is on the inside of the bag, in otherwords cut the bag open. Set it on a pice of wood or better yet set it on the box it came on or another mobo box. The reason I say this is because the inside of the bag is anti static the outside carries all the static. I am picky but, sometimes picky pays off.
 

Mavrick007

Diamond Member
Dec 19, 2001
3,198
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Originally posted by: Slatz
This may sound picky, but I personally wouldn't rest the mobo on an anti static bag., and if you do make sure it is on the inside of the bag, in otherwords cut the bag open. Set it on a pice of wood or better yet set it on the box it came on or another mobo box. The reason I say this is because the inside of the bag is anti static the outside carries all the static. I am picky but, sometimes picky pays off.

Hehe too true.. I've had things stick to the outside of the bag like lint and a piece of hair so it's definitely not anti-static.
 

Slugbait

Elite Member
Oct 9, 1999
3,633
3
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Well, I pulled the CMOS battery to reset (no jumpers). I reseated all the memory, and I also ran a single stick in bank 0. Just a video card, single hard drive (yes, the jumper is set for "single", not "master"), and a floppy drive.

Also tried with no cables connected to floppy and hard drive slots. Nothing happened, no beeps, no bios screen

Still, the hard drive doesn't spin up until I disconnect the IDE cable from the board.

Got one last thing to try...enable SCSI again and run it with the LVD drive. Unless someone has a better idea.