comp problems.

[Brandon]

Well I just got a new intel 850E mobo (VR), to replace an old gigabyte GA-8IHXP, that was nothing but trouble...

I instlal everything in case, no post no video... Everything's running all fans etc, the GPU/CPU warms up, but thats it.


so I take mobo out of case, I install CPU, RDRAM, Video card, no post no vid, same shit... Test with another PS, SAME, another video card SAME!

so I say hmmm, maybe something to do with the rdram (had all 4 slots filled 4x256 pc1066) So I start switching the ram around (first to slots) and use CRIMM. Still nothing same shit no post no video...

I'm now thinking it's the CPU, but I don't have a Mobo to test a pent 4 478.

Anyone have any ideas of what else I might be able to do, or what could be wrong? I've reseated CPU memory etc.. no go.

PLEASE HELP I'M RIPPING MY HAIR OUT!!!!

EDIT: hardware duh...

p4 2.66 ghz cpu.

a 500 watt Power supply.

a ati radeon 9200 vga vid card.

1 gig pc1066 RDRAM.

[kc8adu]

Re: comp problems.

make sure you have p4 power and aux plugged in if they are used.
some intel boards also use a 4 pin drive power too.
and it wont run without it!
just put a ibm intellistation board in a machine at the shop.its oem intel.
uses 20 pin atx,aux power,and a drive power.aux is the one that looks like an at connector.
also make sure the psu supplies -5 esp if the board has isa slots.
too many cheap psu dont have -5

[Brandon]

Re: comp problems.

Jumpers/power everything looks right :/ BUT;

Umm I see here on the "MB layout case sticker" (different then the manual.) ab AUX PWR it just has 2 pins thats all! WTH is it? In the manual it says power LED. also, I have the PWR 12V (p4), and reg power (20 pin?!?) connected.

The lights are coming up on board and everything, just no post from the onboard speaker/no vid?!?

I didn't really get what you were saying about the PS anyway, it seems I over rated it... it's a turbolink switching power supply MODEL: CWT-420ATX 12V (420 watt max). the board to be more specific is an INTEL 850EMVR (850EMv2 revised).

[Galvanized]

Re: comp problems.

kc8adu, with ATX revision 2.01, on June, 2004, the -5 was dropped. That's the white wire in the 20/24 pin ATX shell, Brandon. Along with the ISA slots the -5 was used by some older PCI sound cards. Some PSUs still have it on the pcb but no wire is run.

Starts on page 3.

[Brandon]

Re: comp problems.

477 socket... Bent pin!!! WELL SOB!! I can't believe I didn't spot it b4... it's a pin right on the edge too, and boy is it bent, more like folded... WISH ME LUCK, I'll post results, if all else fails CPU is still under warranty so maybe they will replace it? )


Thanks for the post's!

[Brandon]

Re: comp problems.

hmm one bent pin one missing WTF? :/ Intel won't even cover this will they??

[tiresias]

Re: comp problems.

hmm one bent pin one missing WTF? :/ Intel won't even cover this will they??

So it's a socket 476 CPU now?

[Brandon]

Re: comp problems.

So it's a socket 476 CPU now?

477 fixed the bent pin... but found one broke :/, damn things are hard to spot... I'm going to try to put a pin in the sock, and maybe it will work...

[arneson]

Re: comp problems.

Very fine soldering is required.
Are you sure it's not the guide pin, meant to be missing?

[Brandon]

Re: comp problems.

Very fine soldering is required.
Are you sure it's not the guide pin, meant to be missing?

yes. on the opp side.. Well I can't soder THAT well. Again do you think intel would replace it?

-if intel won't.
so, I have a question, will the intel pentium 4 3.0GHz 800MHz 478pin 1MB CPU work in this board? (850EMVR) I'm not sure it supports the 800mhx FSB, and thre have been so many damn revisons of this board, and not much updated info.


Thanks for the information guys.

[Brandon]

Re: comp problems.

update, tried fixing cpu (wire in sock) posting now... 3 beeps will check post code for bios from what I can recall three post's = memory. BTW was a power/other pin. Again thanks for info.

[Brandon]

Re: comp problems.

GOT BIOS SCREEEN!!!!!! YAY! Will post tut on fixing pins my god this rocks!!!! (so far) )

[kc8adu]

Re: comp problems.

i have soldered pins back on cpu's
i use a 1/64 tip on a wahl isotip iron and do it before excessive consumption of allergy pills or mountain dew.

[arneson]

Re: comp problems.

Dr. kc8adu, Brain Surgery.

[Brandon]

Re: comp problems.

tis a big deal to me saed 100$ + and yea insomnia doesn't help much...

[Topcat]

Re: comp problems.

I've never soldered pins back on a processor. Nice work! Post up some pics of that! Anytime I had a CPU that shed pins like a sick cat, I always tossed them in the trash.

[Rainbow]

Re: comp problems.

I've soldered a pin back once - on a Tualatin PIII CPU. It took two attempts to do it properly.

[linuxguru]

Re: comp problems.

I doubt if any i850 board can reliably support a Prescott - it was introduced with the Williamette. Anyway, check the caps and keep your fingers crossed.

[kc8adu]

Re: comp problems.

I doubt if any i850 board can reliably support a Prescott - it was introduced with the Williamette. Anyway, check the caps and keep your fingers crossed.

might be a bios for it.
anyway make sure vcore is right and the vrm is not overheating.

[Brandon]

Re: comp problems.

Well so far so good, systems been stable! (around 12 hours) Temps have been ok, I would like them to be a bit lower, but with RDRAM, etc :/.