Re: Puzzle


"Dr.H@l0nf1r£$" <yeah@xxxxxx> wrote in message
news:sJCdnSsfaalFDa_bnZ2dnUVZ8qSnnZ2d@xxxxxxxxx
OK I've completed all the tests I can think of and narrowed the fault
down. I'm now going to post here and get some opinions :

I had a system bought from PC World under the Medion label back in 2002.
last year I was flashing the BIOS when everything died. Eventually after a
reboot all I could get out of it was a continuous beep; nothing else, even
the screen was blank. I stripped the PC down completely and I changed the
motherboard from a custom-made-for PC-World MSI board to an ASrock P4i56G.
I used the old CPU, a first-generation P4 2.8 GHz single-threaded chip;
and old memory, 2 * 256GB sticks DDR. I had to adapt the case to be able
to fit in any PCI devices in the PCI slots as the position of the PCI
slots differed. I refitted the old PSU though I had to change the fan and
heatsink as the old ones didn't fit the board, DVD ROM, CD-RW, floppy
drive, and PATA HDDs; an 80GB drive and a Maxtor 20GB drive. I connected
up the front panel correctly although the 2 front USB ports were left
unconnected as the plug didn't fit the new board. When checked all
thoroughly I powered up and switched on. :

The CPU fan and case fan ran for 1 second and died. I pushed the button
again; same thing. Since then I've tried powering up with the CD-RW
unconnected, the DVD-ROM unconnected, both unconnected, the floppy
unconnected as well, even the HDDs unconnected, all with the identical
result. I've tested the PSU and found it to be faultless, I've tried
swapping the polarity of some of the front panel connections; but still
nothing works for more than 1 second, apart from the LEDs. : Either the
power LED or the HDD LED illuminates constantly but on power up the lit
LED goes out and the other illuminates until the unit dies after 1
second...

So it can only be 1 of 3 things or maybe a combination of more than 1 of 3
things wrong. Those being the CPU is dead, the memory is dead, or the
brand new motherboard is dead. (I was extra-careful about static
protection when I fitted it. I wore an earthed wristband and did not rest
the board on anything other than its anti-static bag briefly, having
removed it from the bag immediately before installing it in the case. The
case was earthed at all times during construction and I wore the wristband
at all times.)

So; before I spend anything on this, I need to know if it's the CPU, the
RAM, the mobo, or any combination. (If all 3 I'll simply bin the project.)

Opinions please if you would be so good.

Thanks.

Try checking the POST for your bios http://www.computerhope.com/beep.htm
before getting anal about static.Unless you live in a nylon based
environment mobo's are not especially prone to static damage and since you
are fitting it into a nice earthed metal chassis which you should have
discharged to before slipping it out of the bag should not be an issue.
It is possible to boot a mobo bare with just the cpu and fan in place to
generate a no memory beep sequence to discount a mobo failure just a though
you did use the bios clear jumper before you started then set it to normal?
Derek


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