[sd16v]

(THIS WAS POSTED TO ALT.COMP.PERIPHS.MAINBOARD.ABIT

this morning
)
hi guys, well after returning 2 kr7s with weird faults, i now have 2
board which should work yet dont. Its very strange i test the board
outside the case, bare minimums to beep into bios, everything is fine
i then pop them in the case and they die.
The syptoms are no beep, no post, 2 or all 3 leds lit, fan1/fan2 live
12v
northbridge fan/fan4/5 dead well 1.1v and agp card fan dead. No at
first i thought i had killed the ic chip by doing a volt-mod, yet i
brought a brand new board and within hours it had the exact same
fault. Well to cut a long story short, and this has been going on for
3 days now.
Upon carefull inspection of the underneath of the pcb board, in the
top left corner of the board(flipped over ports facing u) right in the
corner on the 12v pcb track lines there is or was a small raised i
assume square resistor that bridges the pcb trace, well this was
missing a nd the pcb trace was slightly raised where the
(fuse/resistor) had been wrenched from it.
Now i soldered a small wire to bridge the gap, powered up, beep
post..yippee, i then proceded to pop on the blue orb and alpha 8045,
testing along the way, then all of a sudden the same problem, maybe
the resistance of the wire i used is not the correct value as the
bridging resistor (4ohms).

Well i gave up with that board to work on the other dead one, with
this kr7 i managed to just solder the bridge. Powered up nothing,
played around reseated everything, post into bios, powered down,
nothing for half an hour, snagged the pwer supply with leg, power
supply went crashing to the floor as did mobo. Reseated everything
post.beep, in bios screen now.

Now i still have one dead kr7 and im uncertain how stable the other
is, surely im not the only one who has rmaed and returned "faulty"
boards with these syptoms, Thats now four boards i have caused the
same fault in, it not even as so my case(coolermaster 820) is even
fouling that part of the board, although the fuse/resistor is just at
the point where you will catch it turning the board a fraction to tilt
it out of the case.

Now ideally does anyone know what fuse/resistor it is/was, there are
only about 3/4 of these underneath the board and only 1 in any corner,
AFterthought abit?