Will this CPU work in Laptop?

[Gabriel Knight]

Hi I am in the process to get a laptop to work again it is an Acer Extensa
2000 I think the CPU has been the fault as the fan assembly was caked in
dust very thick so overheating is my guess it would turn on sometime to a
single screen and freeze I could not press F2 for the bios other times
nothing on screen or garbled lines of grey up and down the screen. I pulled
out the CPU it is an intel Celeron thing is I dont have any spare Celeron
CPU's to test if this will fix it so my question is the manual says for the
Extensa 2500 a P4 is used and for the Extensa 2000 a Celeron is used can I
use a P4 in my Extensa 2000 or a Celeron M CPU? Thanks everyone, GK.

 

[Paul]

Hi I am in the process to get a laptop to work again it is an Acer Extensa
2000 I think the CPU has been the fault as the fan assembly was caked in
dust very thick so overheating is my guess it would turn on sometime to a
single screen and freeze I could not press F2 for the bios other times
nothing on screen or garbled lines of grey up and down the screen. I pulled
out the CPU it is an intel Celeron thing is I dont have any spare Celeron
CPU's to test if this will fix it so my question is the manual says for the
Extensa 2500 a P4 is used and for the Extensa 2000 a Celeron is used can I
use a P4 in my Extensa 2000 or a Celeron M CPU? Thanks everyone, GK.

You could start by looking for the SLxxx code on the processor. Then
try looking that up, to see what kind of Celeron it is.

What is the exact model number of the laptop ? I'm having trouble
finding examples to go on in a search engine. I see references to
"2000 series" implying perhaps a more specific model number is
involved.

Processors have been protected by THERMTRIP for some time, so if
the processor got too hot, the laptop would have shut off.

Sometimes, the source of the failure on a laptop, is a bad GPU.
It could be yours uses an ATI 9000 mobile of some sort, but
I can't be sure. There were a few bad Nvidia GPUs with a solder
ball problem of some sort. ATI may have had a similar problem,
but to a much smaller extent. (Not to the extent that large
recalls or class action suits were involved.) So that's another
potential source of the problem, if you see graphics corruption,
a broken solder ball under the GPU.

Some of the GPUs of that era, had memory soldered to the top
of the GPU. So they weren't exactly simple designs, by any means.

Paul

 

[Gabriel Knight]

Hay Paul it is an Extensa 2000 - Model No. MS2154 the CPU is a SL6VV
2.6GHz/128/400 I havnt found a CPU compatability list yet the manual I found
says

Intel® Pentium® 4 (for Extensa 2500) and Intel® Celeron® (for Extensa 2000)
processors, 2.80GHz and above.

"2.8GHz and above" - I dont know if this is an old manual as the CPU I
pulled out is 2.6GHz and without a compatability list im not sure what to go
for, if it is not the CPU like you said because of the THERMTRIP and it is
the GPU solder would that explain why I sometimes see the boot picture of
ACER in just lines up and down though why would it only get to the Acer
splash screen (without garbled lines) and freeze at the part "press F2 for
setup" with only a couple of tries at the begining of my fault finding
successfuly getting into the bios as now it has frozen at the "press F2 for
setup" completly. I have tried useing some different sticks of ram to see if
the ram was faulty but not much difference there sometimes it will turn on
and sometimes the screen will not come on but the lights on the screen say
there is power on, at the very begining I would turn it on and the screen
would come on and I could get into the bios but from the start of pressing
the power button it would beep at me very loud and keep going thats why I
changed the ram and now it doesnt beep so the ram might have been faulty - I
took it out again to test this and sure and true it beeped again. So my tech
guess is that the CPU is making it freeze ~ what do you think; I have
removed the ram, HDD, DVD drive and mouse pad just to see if I can get into
the bios and also put just the ram and keyboard in to get the screen to work
on occasion. Im stumped till I can try a CPU test, oh and I did fiddle with
the laptop open/close switch it seem to be working and I tested by taking it
out aswell but its not the switch causing the screen to not turn on
sometimes.

 

[Flasherly]

Hi I am in the process to get a laptop to work again it is an Acer Extensa
2000 I think the CPU has been the fault as the fan assembly was caked in
dust very thick so overheating is my guess it would turn on sometime to a
single screen and freeze I could not press F2 for the bios other times
nothing on screen or garbled lines of grey up and down the screen. I pulled
out the CPU it is an intel Celeron thing is I dont have any spare Celeron
CPU's to test if this will fix it so my question is the manual says for the
Extensa 2500 a P4 is used and for the Extensa 2000 a Celeron is used can I
use a P4 in my Extensa 2000 or a Celeron M CPU? Thanks everyone, GK.

I get those CPUs sweet on EBAY at times for next to nothing. Updated
a couple of MBs from single to dual cores for $10 to $15 in socket AMD
and 775 configs. On that value scale, I could give you something like
a Celeron single core. But that's likely not the problem - takes some
doing to kill a CPU. Given the complexity of working within a laptop
on the MB, the dirt you see present on a used unit, it probably hasn't
been touched by the prior owner. Getting it all apart to clean and
back to as new shape for normal cooling is the first part to any
restoration attempt. However if age and operation have progressed to
MB component malfunctions requiring replacement, a replacement CPU is
going to be a long shot at happy fixes. Then there's a power
subsystem somewhere in there if not directly on the MB. Removing
accessible peripherals (HD/CD) may give some indication of load specs
it's deviated from. I view laps from the standpoint of watches and
repairwork. Both watches are solar Casio atomic clock radio
receivers, which is to say all my computers these days are desktops
and I've never repaired a watch.

 

[Paul]

Hay Paul it is an Extensa 2000 - Model No. MS2154 the CPU is a SL6VV
2.6GHz/128/400 I havnt found a CPU compatability list yet the manual I found
says

Intel® Pentium® 4 (for Extensa 2500) and Intel® Celeron® (for Extensa 2000)
processors, 2.80GHz and above.

"2.8GHz and above" - I dont know if this is an old manual as the CPU I
pulled out is 2.6GHz and without a compatability list im not sure what to go
for, if it is not the CPU like you said because of the THERMTRIP and it is
the GPU solder would that explain why I sometimes see the boot picture of
ACER in just lines up and down though why would it only get to the Acer
splash screen (without garbled lines) and freeze at the part "press F2 for
setup" with only a couple of tries at the begining of my fault finding
successfuly getting into the bios as now it has frozen at the "press F2 for
setup" completly. I have tried useing some different sticks of ram to see if
the ram was faulty but not much difference there sometimes it will turn on
and sometimes the screen will not come on but the lights on the screen say
there is power on, at the very begining I would turn it on and the screen
would come on and I could get into the bios but from the start of pressing
the power button it would beep at me very loud and keep going thats why I
changed the ram and now it doesnt beep so the ram might have been faulty - I
took it out again to test this and sure and true it beeped again. So my tech
guess is that the CPU is making it freeze ~ what do you think; I have
removed the ram, HDD, DVD drive and mouse pad just to see if I can get into
the bios and also put just the ram and keyboard in to get the screen to work
on occasion. Im stumped till I can try a CPU test, oh and I did fiddle with
the laptop open/close switch it seem to be working and I tested by taking it
out aswell but its not the switch causing the screen to not turn on
sometimes.

2.6GHz/128/400 SL6VV

130nm Northwood, S478, TDP=62.6 watts
Must be back in the era of using desktop processors in laptops.

http://ark.intel.com/products/27180/Intel-Celeron-Processor-2_60-GHz-128K-Cache-400-MHz-FSB

You could look for similar Pentium 4 processors, with FSB400.

http://ark.intel.com/search/advanced/?s=t&FamilyText=Intel® Pentium® 4 Processor&Bus=400 MHz

This 2.6GHz/512/400 would be the Pentium 4 equivalent of that
Celeron. It has more cache than the Celeron, but is similar
in other respects. Same power footprint.

http://ark.intel.com/products/27442/Intel-Pentium-4-Processor-2_60-GHz-512K-Cache-400-MHz-FSB

Changing processors only causes problems, if there is no
microcode support in the BIOS, or the BIOS refuses to
recognize different types of processors. Desktop motherboards
are even fussy in this regard.

*******

If you can get a relatively intelligible beep code
("beep" delay "beep" delay "beep" delay), that implies
the processor is OK, because processor code is being used
to time the release of the beeps.

To program a single beep action, takes a little bit of
successfully executed BIOS code, so even that is a good
sign.

I don't know if a beeper has been designed, to be totally
separate from processor activity, such that you can get beeps
when the processor is dead. Normally, if a processor was
completely dead, there'd be a black screen and no beep, since
there is nothing to program the thing that beeps.

Asus did make "Vocal Post" for their motherboards, using a
Winbond chip. And that has the capability to "make a noise"
without CPU intervention. And that's because the Winbond chip
has its own crude processor. But that approach did not spread
through the industry that I can see. To make a beep, generally
needs a working CPU. Your problem may lie elsewhere, bad RAM,
bad GPU, and the beep code may be telling you the defective
subsystem.

Paul