athlon 64 fitted backward

  • Thread starter Thread starter Royc
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Royc

i have a asus k8v-x motherboard, its had the processor fitted backwards, and
broken off 2 legs.
is this likly to have blown the m'board as well?

roy
 
"Royc" said:
i have a asus k8v-x motherboard, its had the processor fitted backwards, and
broken off 2 legs.
is this likly to have blown the m'board as well?

roy
Click to expand...

There is no way to know for sure. The thing is, power pins no longer
align with their intended targets, and same goes for the I/O pins.
Failure mode analysis would be a time consuming process, even at
the factory. But rest assured, that if any pins were lined up in
such a way to be damaged, the Vcore circuit has plenty of amps
available to damage them - I doubt any short circuit detection
would have shut down the power circuits on the motherboard.

A dead giveaway, is heat. If the processor, Northbridge, or memory
got hot during the event, that is damage in the making. Yes, even
the memory could have been damaged (as the memory connects to the
processor, while the processor was powered backwards).

Of the six pins you could have snapped off, only one is critical to
circuit operation. If you look at page 28 -

http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31410.pdf

the MEMDQS[2] pin interfaces to memory, and the chip cannot function
without it. The other corners have power pins, and they are redundant.
You might be able to get away without them.

If the MEMDQS[2] pin is still on the processor, try plugging the chip
in the right way. You probably cannot do more damage than has already
been done. Be prepared to switch off via the switch on the back of the
computer, in case of smoke.

It is hard to give advice on what parts of this project to keep. The
disk drives are probably OK. Same for keyboard and mouse. Video board
would be buffered by the Northbridge, so it is probably OK. Processor
most likely toast. Northbridge could be toast (so new motherboard).
Really hard to say about the memory. It was likely tristated during
the whole experience, and might be able to take any voltage it sees.
But reusing it on the new motherboard is still a gamble, no matter
what odds I were to quote you.

Paul
 
i have a asus k8v-x motherboard, its had the processor fitted backwards, and
broken off 2 legs.
is this likly to have blown the m'board as well?

roy
Click to expand...

I would RMA the board just to be safe. ;p

Ed
 
Paul said:
"Royc" said:
i have a asus k8v-x motherboard, its had the processor fitted backwards,
and
broken off 2 legs.
is this likly to have blown the m'board as well?

roy
Click to expand...

There is no way to know for sure. The thing is, power pins no longer
align with their intended targets, and same goes for the I/O pins.
Failure mode analysis would be a time consuming process, even at
the factory. But rest assured, that if any pins were lined up in
such a way to be damaged, the Vcore circuit has plenty of amps
available to damage them - I doubt any short circuit detection
would have shut down the power circuits on the motherboard.

A dead giveaway, is heat. If the processor, Northbridge, or memory
got hot during the event, that is damage in the making. Yes, even
the memory could have been damaged (as the memory connects to the
processor, while the processor was powered backwards).

Of the six pins you could have snapped off, only one is critical to
circuit operation. If you look at page 28 -

http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31410.pdf

the MEMDQS[2] pin interfaces to memory, and the chip cannot function
without it. The other corners have power pins, and they are redundant.
You might be able to get away without them.

If the MEMDQS[2] pin is still on the processor, try plugging the chip
in the right way. You probably cannot do more damage than has already
been done. Be prepared to switch off via the switch on the back of the
computer, in case of smoke.

It is hard to give advice on what parts of this project to keep. The
disk drives are probably OK. Same for keyboard and mouse. Video board
would be buffered by the Northbridge, so it is probably OK. Processor
most likely toast. Northbridge could be toast (so new motherboard).
Really hard to say about the memory. It was likely tristated during
the whole experience, and might be able to take any voltage it sees.
But reusing it on the new motherboard is still a gamble, no matter
what odds I were to quote you.

Paul
Click to expand...



thanx for that, i asked because i have purchased a new processor, and all is
still dead, no beeps on m'board although the status led is on & the fans
work. new processor & all other chips on m'board are cold.
i will have to test the other bits.

roy
 
Pete D said:
No but it will have damaged your wallet and self esteem.
Click to expand...


it sure has, i am hoping its covered on my credit card insurance for
accidental damage...

roy
 
Paul said:
i have a asus k8v-x motherboard, its had the processor fitted backwards, and
broken off 2 legs.
is this likly to have blown the m'board as well?

roy
Click to expand...


There is no way to know for sure. The thing is, power pins no longer
align with their intended targets, and same goes for the I/O pins.
Failure mode analysis would be a time consuming process, even at
the factory. But rest assured, that if any pins were lined up in
such a way to be damaged, the Vcore circuit has plenty of amps
available to damage them - I doubt any short circuit detection
would have shut down the power circuits on the motherboard.

A dead giveaway, is heat. If the processor, Northbridge, or memory
got hot during the event, that is damage in the making. Yes, even
the memory could have been damaged (as the memory connects to the
processor, while the processor was powered backwards).

Of the six pins you could have snapped off, only one is critical to
circuit operation. If you look at page 28 -

http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31410.pdf

the MEMDQS[2] pin interfaces to memory, and the chip cannot function
without it. The other corners have power pins, and they are redundant.
You might be able to get away without them.
Click to expand...

"might" is the operative word.

I purchased a P3-S with a missing pin *very* cheaply on eBay. The
seller's picture was clear enough to identify the missing pin as one of
many Vcore pins - but if it still worked, I figure the seller would have
said so in hopes of receiving higher bids. I took a chance anyway.

The CPU was dead as a doornail on arrival. Luckily the trace from the
missing pin to the core was visible on the underside of the processor,
and ran parallel to another Vcore trace for a few mm. I soldered a
bridge between the traces, and the repaired CPU has been serving my
better half's computing needs flawlessly for several months now :-)
If the MEMDQS[2] pin is still on the processor, try plugging the chip
in the right way. You probably cannot do more damage than has already
been done. Be prepared to switch off via the switch on the back of the
computer, in case of smoke.

It is hard to give advice on what parts of this project to keep. The
disk drives are probably OK. Same for keyboard and mouse. Video board
would be buffered by the Northbridge, so it is probably OK. Processor
most likely toast. Northbridge could be toast (so new motherboard).
Really hard to say about the memory. It was likely tristated during
the whole experience, and might be able to take any voltage it sees.
But reusing it on the new motherboard is still a gamble, no matter
what odds I were to quote you.

Paul
Click to expand...
 
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