**HELP** CPU dead?

[Maverick]

I just got my new MSI K7T Pro2A and T-bird 900. For some reason the machine won't even post. I installed just the CPU and vid card. I get no video, and no beep (that means it posted right?). But the machine stays on without turning itself off. Correct me if I'm wrong, but if the machine doesn't turn itself off, the CPU isn't dead. This thing was multiplier unlocked with a graphite pencil, so I used an eraser to disconnect the L1 bridges. Still does the same thing. The CPU does get hot though, so I'm thinking that there is power going through it. I've been at this thing for 3 hours so if anyone has any advice, please let me know. Thanks.

 

[compuwiz1]

What are the Dleds doing, staying all red? Reseat everything, cpu, ram, vid card. When you power it on next time, depress the insert key and hold it down at the same time you press the power button. It should post. The cpu could be dead as well.
You may be able to rma it, as long as there is no evidence of tampering. If the bridges were shorted across, it's possible you fried it.

 

[Maverick]

Okay I tried reseating all that stuff and holding insert.
Still nothing. I can't RMA this cpu because I got it from JackieO.
He says that if the machine stays on without turning itself off, it doesn't necessarily mean the CPU is dead. He said he tested the chip on a K7T Pro just before shipping and it worked. I don't understand how it could have fried. I may have had a little too much arctic silver on the chip, but I wiped it all off except the stuff on the core and it still didn't help. Could the AS paste have cross connected the L1 bridges?


oh and the LED's are all red

 

[Santan]

Reset the cmos...maybe its hanging the multiplier - or manually set the chip/voltage with jumpers...

Good Luck

 

[Maverick]

Well now the machine won't even power on. I've tried messing with the power switch and such, taking out the CMOS battery, resetting the CMOS repeatedly, all with no luck. Is the board dead now too? If it is it looks like I'm out 300 bucks. This little incident will probably keep me from opening up a computer for a very long time.

 

[Rockhammer]

I doubt if you killed it by cross connecting the bridges. It's more likely that you chipped the core when you installed the HSF. Inspect the core for chips. Even the tiniest one can kill a t-bird. You can always pick up a Duron, overclock it, and get 95% of the performance of that T-bird. That T-bird will make a cool key chain, lol. I have a web page up on making CPU keychains and another one on how to protect the cores from breaking in the first place. Hit the link in my sig to see them.

 

[Maverick]

Ok well I tested the power supply so I know its not dead. Is the motherboard dead now? If the CPU is fried, the motherboard should still turn on the HD's and everything else when I hit the power switch, right?
I sincerely hope the mobo isn't dead...buying a Duron I can deal with...buying another K7T pro2a I can't do.

 

[AntMan]

Are you sure you put the cmos reset jumpers back correctly? If not that could be why the mb appears to have no power. As for no video or post, two simple solutions maybe.

1. Make sure you have no case connectors touching non metal parts of your mb, if so you're motherboard WILL NOT POST, nor show video.

2. The Agp display may be turned off on your motherboard, hence if you have a pci video card, try using that to get into bios.


Just some thoughts
Ant_Man

 

[Maverick]

Okay you were right about the CMOS jumper Antman. The system powers on now. I had the jumper settings for clear and keep switched.

But the LED's still show that the CPU is dead, however...the core of the CPU still gets heat...almost burnt my finger when I touched it. Does this mean the processor still works? Or is this just a couple jolts being thrown into a dead processor by the system?

 

[Maverick]

TTT
Just need a yes or no on the last question and I'm set.

 

[AntMan]

I had the same problem about 2 weeks ago, I thought I had fried my cpu, even though there were no signs of burns, I could not get the system to boot whatsoever. These are the things I ultimly tried

1. Reset Cmos(you already tried)
2. Fooled with the LED connectors(no effect)
3. Tried a PCI graphics card
4. Disconnected everything other than the graphics card and LED connectors

I tried several other stupid things aswell, but in the end it was the most moronic things of all. When I installed the motherboard, I put a few extra connectors into the back of the case, so 2 of those extra connectors were touching the motherboard in places where there was no metal protective holes. So all in all, I was discharging or creating some adverse effect to the motherboard with those motherboard-case connectors that was making the mb not work correctly.

Long Story shot, just make sure no metal is touching the bare motherboard.

Ant_Man

 

[Dill]

you might try taking the motherboard out of the case and setting it onto an anti static bag and plug everything in and fire it up..also, if you can feel the core get hot, you don't have a hsf on it do you? amd chips fry very quickly with no hsf on them, usually within 10 sec. if I remember right.

 

[Maverick]

checked everything, wouldn't even work sittin on a static bag. So I caved and bought a Duron 650. A moment of silence for my poor T-bird 900 *sigh*

 

[Dennis Travis]

Does the Duron Post? Was it the TBird for sure?

 

[Maverick]

yup, duron works without a hitch. T-bird doesn't work at all.

 

[Dennis Travis]

Interesting. I still wonder if it's something to do with the bridges but you seem to have tried everything in that area.

 

[Mixxen]

You can erase the pencil marks from the L1 bridges and the chip should run at default. I used one of those white "click" erasers on my friends TBird and the cpu booted back to default on an A7V.

Is the chip receiving enough voltage? Is the multiplier on the mobo set to the what you want?

 

[yathinkicare]

a dead 900.. ouch.. no way you can exchange it?

don't know what you paid.. I will only buy with warrentee

 

[Maverick]

tried the eraser method, everything. I bought it from a guy on this board...JackieO. I dont' know what to do about the situation now...he says he tested it before shipping and it worked fine in his board. Its pretty much his word against mine.

 

[ArkAoss]

check the corners, even the tiniest chip to the core causes death, i dont have any amd's yet but im really really looking to get one so im doing tons of research, and check out rockhammer's website he's got some really good stuff there. . .

 

[Maverick]

well I bought a duron instead and plugged it in...everything is installed with the Duron in now. I just don't know what to do about this dead chip. Anyone have any ideas?

 

[Gef0rce]

You are in a bad position
1.You may have very well damaged the CPU chipped-fleaked or cracked the area around the die.
2. If the seller is a very good and honest trader, it would be hard to dispute if you see damage you caused.
3 Check with seller admit If you damaged possibly, and is there any return policy whatsoever on CPU.

This is why I got a retail 1GHz TBird-You see saving some is not worth the consiquences in the end.NPI

 

[Gef0rce]

Also if your traces touched the lower bridges, it should have only shown a non unlocked CPU in WCPUID. But, a shorted CPU will still get very hot. Ask the seller if he (the original buyer could possibly get it replaced for you), if it was me I would do you the favor once, but only once.

 

[Maverick]

Yah I've pretty much bent myself over on this one. I think I will always buy chips retail from now on. I've gotten screwed in an OEM deal before also. Just too many attempts to save money that have gone awry.