Broken motherboard or CPU?

On Thu, 27 Jul 2006 00:33:55 -0400, kony wrote:

On Wed, 26 Jul 2006 11:24:59 -0700, "Don Freeman"
wrote:


"kony" wrote in message
. ..
On 26 Jul 2006 00:07:04 -0700, wrote:

Brian K wrote:
If the CPU isn't at least warm to the touch after you turn the pc off,
then either the CPU was damaged. Test with another compatible CPU you
know works. If the CPU is stone cold than the socket was damaged and
the pins aren't making contact with the motherboard. Test the CPU in
another compatible motherboard.

I took of the heatsink and fan from the CPU and turned the machine on
for 30 seconds and switched it off, the CPU was _hot_, however no
signal to monitor or beep.

I can't believe you just did that.

Do not ever turn on a system without the heatsink on it.
You may have NOW damaged the CPU, might now have two dead
pieces of gear instead of one.


Not for 30 seconds.



Yes, in as little as a single-digit # of seconds it will fry
a semi-modern CPU.

After just bench-testing four P4 motherboards, one of which was dead,
with two 2.4's and a 3.2, all Northwoods, the method I used was to
place the cooler - no compound and unclipped but fan attached to
header - on the chip as I went into the CMOS. The chips and sink base
were clean, but not lapped.
The chips all measured a normal 80-90 F in CMOS and didn't change for
the few minutes of testing.
Out of curiosity I once put power to an unprotected 2.4 chip for 3-4
seconds, cut power, and touched the chip. It was hot, maybe 150 F.

--Vic

I took of the heatsink and fan from the CPU and turned the machine on
for 30 seconds and switched it off, the CPU was _hot_, however no
signal to monitor or beep.

CPU is dead now for sure.

OK, I got the new motherboard delivered (same model/manufacturer) and
nothing works

Shall I order the a new CPU next?

Would a machine boot up without or faulty memory and notify me in BOIS?

On 27 Jul 2006 01:32:05 -0700, wrote:

OK, I got the new motherboard delivered (same model/manufacturer) and
nothing works

Shall I order the a new CPU next?

Would a machine boot up without or faulty memory and notify me in BOIS?

No, if the memory is barely instable it might make it to the
bios but in general if the memory is bad, or missing, it
won't POST at all or lock up far sooner rather than later.

It would be handy to have known good parts to swap around
the CPUs and motherboards but if you can't do that, yes it
seems a replacement CPU should be tried.

kony wrote
wrote

OK, I got the new motherboard delivered
(same model/manufacturer) and nothing works

Shall I order the a new CPU next?

Would a machine boot up without or faulty memory and notify me in BOIS?

Yes, if the cpu is working you should get a beep code at least.

No, if the memory is barely instable it might make it to the
bios but in general if the memory is bad, or missing, it
won't POST at all or lock up far sooner rather than later.

Wrong, as always.

It would be handy to have known good parts to swap
around the CPUs and motherboards but if you can't do
that, yes it seems a replacement CPU should be tried.

"Top" wrote in message
alid...
| Don Freeman explained :
| "sloblocks" wrote in message
| ...
| Don Freeman explained :
| "sloblocks" wrote in message
| ...
| sloblocks wrote on 26/07/2006 :
| Don Freeman pretended :
|
| Not for 30 seconds.
|
| Maybe not with a socket 969 CPU, but with one of the earlier socket
| Athlon's in the 1GHz speed region: Hello Smoke, Bye Bye CPU.
|
| ..or even 939 )
|
|
| Whew! For a minute there I thought I was going to have to upgrade
AGAIN.
|
| Err, you probably don't want to hear this.. but
| http://www.theregister.co.uk/2005/05...t_m2_desktops/
|
|
| Does the torture never stop?
|
| Depends


Isn't there a pin-less processor in development too? Maybe by Intel? I
remember hearing or reading something about this. Where the pins are on the
MoBo. Only the pins are not really pins but just little metal dots that
match up to similar dots on the CPU. I think the author called them
connection plates or something similar. Don't ask me how it gets locked into
place. But the CPU and the Socket are shaped in such a way or 'keyed' so
they can only go in one way. (or two if you put the CPU in the socket upside
down.)

Correct me if I am wrong and have stumbled upon a false rumor. I don't have
time to look it up. I should have been asleep hours ago. Insomnia takes
it's toll again.
--
Happy Computing!
|

"Rod Speed" wrote in message
...
kony wrote
wrote

OK, I got the new motherboard delivered
(same model/manufacturer) and nothing works

Shall I order the a new CPU next?

Would a machine boot up without or faulty memory and notify me in BOIS?

Yes, if the cpu is working you should get a beep code at least.


Unfortunately, Rod, Award's more recent BIOSes seem to NEED valid
RAM at page 0 to even run the beeper ... I've seen several motherboards that
with no RAM or bad RAM won't even beep, and act like a stone cold dead
MB/CPU.

AMIs might be the same way - it's just that the boards I've run
into this have all been Award/Phoenix BIOSes.

RwP

"Randall Smith" wrote in message
. ..

Isn't there a pin-less processor in development too? Maybe by Intel? I
remember hearing or reading something about this. Where the pins are on
the
MoBo. Only the pins are not really pins but just little metal dots that
match up to similar dots on the CPU. I think the author called them
connection plates or something similar. Don't ask me how it gets locked
into
place. But the CPU and the Socket are shaped in such a way or 'keyed' so
they can only go in one way. (or two if you put the CPU in the socket
upside
down.)

Correct me if I am wrong and have stumbled upon a false rumor. I don't
have
time to look it up. I should have been asleep hours ago. Insomnia takes
it's toll again.

Err - Socket 775. Been out for over a year now.

RwP

"Ralph Wade Phillips" wrote in message
news:uT1yg.3433$5H.1105@dukeread06...
|
| "Randall Smith" wrote in message
| . ..
|
| Isn't there a pin-less processor in development too? Maybe by Intel? I
| remember hearing or reading something about this. Where the pins are on
| the
| MoBo. Only the pins are not really pins but just little metal dots that
| match up to similar dots on the CPU. I think the author called them
| connection plates or something similar. Don't ask me how it gets locked
| into
| place. But the CPU and the Socket are shaped in such a way or 'keyed'
so
| they can only go in one way. (or two if you put the CPU in the socket
| upside
| down.)
|
| Correct me if I am wrong and have stumbled upon a false rumor. I don't
| have
| time to look it up. I should have been asleep hours ago. Insomnia
takes
| it's toll again.
|
| Err - Socket 775. Been out for over a year now.
|
| RwP

Err- yeah. I was just too sleepy this morning to remember that. Another
Homer Simpson impersonation is coming I can feel it. [slaps forehead]
"Doh!"

This body is getting too old. I need to find a new host with a smarter
brain. LOL

On Thu, 27 Jul 2006 06:57:37 -0500, "Ralph Wade Phillips"
wrote:


"Rod Speed" wrote in message
...
kony wrote
wrote

OK, I got the new motherboard delivered
(same model/manufacturer) and nothing works

Shall I order the a new CPU next?

Would a machine boot up without or faulty memory and notify me in BOIS?

Yes, if the cpu is working you should get a beep code at least.


Unfortunately, Rod, Award's more recent BIOSes seem to NEED valid
RAM at page 0 to even run the beeper ... I've seen several motherboards that
with no RAM or bad RAM won't even beep, and act like a stone cold dead
MB/CPU.

AMIs might be the same way - it's just that the boards I've run
into this have all been Award/Phoenix BIOSes.

The AMI's in the P4P800SE's I just put together were silent with good
CPU installed, but no memory. And I've had little success in finding
BIO's POST command sequence documentation, though I haven't
put too much time into it.

--Vic