Laptop->Desktop CPU compatibility

[zigozago]

I purchased on ebay an Athlon XP 2800+
AMD Athlon XP-M 2800+ 2.13Ghz Laptop CPU AXMJ2800FHQ4C
The question is: could this CPU works on a desktop motherboard (ASUS
A7V333)
There are no problem with voltage ? I want avoid to 'burn'my CPU...
thanks

 

[David H. Lipman]

From: "zigozago" <[email protected]>

| I purchased on ebay an Athlon XP 2800+
| AMD Athlon XP-M 2800+ 2.13Ghz Laptop CPU AXMJ2800FHQ4C
| The question is: could this CPU works on a desktop motherboard (ASUS
| A7V333)
| There are no problem with voltage ? I want avoid to 'burn'my CPU...
| thanks

Generally speaking, notebook designed CPUs are not cross-compatible with desktop
motherboards.
They are designed differently for; size & mounting, heat and power consumption
considerations.

 

[Paul]

From: "zigozago" <[email protected]>

| I purchased on ebay an Athlon XP 2800+
| AMD Athlon XP-M 2800+ 2.13Ghz Laptop CPU AXMJ2800FHQ4C
| The question is: could this CPU works on a desktop motherboard (ASUS
| A7V333)
| There are no problem with voltage ? I want avoid to 'burn'my CPU...
| thanks

Generally speaking, notebook designed CPUs are not cross-compatible
with desktop motherboards. They are designed differently for;
size & mounting, heat and power consumption considerations.

There is a picture comparing a desktop size processor, to the
laptop version here:

http://www.tomshardware.com/mobile/20040610/averatec-01.html

AXMJ2800FHQ4C
^
|
\_______ Package character

A CPGA = ceramic pin grid array ?
B OBGA = organic ball grid array ?
D OPGA = organic pin grid array ?
E uPGA <--- a tiny processor ? uPGA = micro pin grid array ?
F OPGA* <--- regular size
G uPGA* <--- a tiny processor ? (the tomshardware picture is a "G" ?)

(Info from http://fab51.com/cpu/guide/opn-xp.html#t-bred )

It looks like your processor is the regular size, as near as
I can tell from the information I can find.

Paul

 

[Flasherly]

Answers you're getting aren't right. Mobile XPs run fine on desktop
MBs. Last I ran was a XP 2.4Ghz - no problem, 266fsb. Basically will
run on any socket 7 MB. Though it won't necessarily ID off the BIOS,
you override auto detect to set up your own multiples and Vcore (read
AMD's spec sheet 1st). Then benchmark it for burn in and stability.
Only thing different with yours is I never got up to a 333fsb chip.
(Bought a returned A64 I'm running with). Not sure if your board runs
333fsb. Doubt you'd hurt anything to try it out, though good idea to
know what you're doing - pay attention to Vcore.

 

[Paul]

Answers you're getting aren't right. Mobile XPs run fine on desktop
MBs. Last I ran was a XP 2.4Ghz - no problem, 266fsb. Basically will
run on any socket 7 MB. Though it won't necessarily ID off the BIOS,
you override auto detect to set up your own multiples and Vcore (read
AMD's spec sheet 1st). Then benchmark it for burn in and stability.
Only thing different with yours is I never got up to a 333fsb chip.
(Bought a returned A64 I'm running with). Not sure if your board runs
333fsb. Doubt you'd hurt anything to try it out, though good idea to
know what you're doing - pay attention to Vcore.

I was delivering a warning about the difference between a laptop
low voltage microPGA processor, and the mobile desktop replacement
(DTR) version. When someone on Ebay goes to great pains to say
"laptop processor", I would want to make sure I'm getting a
regular size AthlonXP-M. I've used one, so I know what one looks
like.

http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118_1276_807^544~71941,00.html

"About the Mobile AMD Athlon XP-M Processor

The mobile AMD Athlon XP-M processors are compatible with AMD¹s
Socket A infrastructure, and support the advanced 266MHz AMD Athlon
front-side bus.

The low-voltage mobile AMD Athlon XP-M processors are packaged in
a smaller uPGA package to support thin-and-light designs."

If someone on Ebay pulls a uPGA from a laptop, then that would not
work in a desktop board, because the chip is a different size, as
that AMD press release points out. Based on the OPN, it does look
like that chip is the regular version, and not the tiny laptop
version.

Paul