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Do you need to reinstall OS when changing MB&CPU on 600X
Posted: Thu Feb 01, 2007 3:56 pm
by SnoopyD
Is it necessary to reinstall XP OS after doing a motherboard and CPU upgrade on a TP 600X (From a 2645-5EU to a 2645-9ZU)? Sometimes the OS will read the CPU core speed as 143mhz instead of 648mhz on A/C power. Would a OS reinstall fix this. This problem happens everynow and then. However, it doesn effect performance or speed then this occurs. Does anyone know. Thanks.
Posted: Thu Feb 01, 2007 7:24 pm
by Stargate199
No. The incorrect speed is most likely due to the fact that your 600X is a speedstep model. Intel Pentium III with Speedstep change their speed to a lower, less power consuming one when switch to battery power. Windows will mostly read the cpu speed incorrectly (does this on my T21 and other speedstep computers I have worked on). If you are swapping MB & CPU, you don't need to reinstall Windows unless you want to. The only time you will need to reinstall is if you change the chipset. The 600E/X, T20/21, A20/21 all use them same chipset (as far as I know). I believe it is the 440BX Intel chipset, but can't remember right now.
Thanks for the answer
Posted: Fri Feb 02, 2007 10:43 am
by SnoopyD
Your're right it is a speedstep CPU. I just didn't know that the hardware can actually throw off the OS like that. Thanks again for the answer.
FYI: On the chipset I do believe it is too the 440BX, I think the 600's took the 400MX - but don't quote me.
Incorrect CPU speed?
Posted: Wed Sep 17, 2008 7:15 am
by krcmd
Recently got a used t43P.
Original specs say 2.26 gH CPU.
Sys Info now says 2.0 gH. Had MB replaced by Lenovo before I got it, but they say they didn't change the CPU.
Could this be a software thing?
thanks
Posted: Wed Sep 17, 2008 7:32 am
by Harryc
Download and run cpu-z to confirm the CPU model. Post it here if you need assistance.
http://www.cpuid.com/cpuz.php
CPU Model
Posted: Wed Sep 17, 2008 7:42 pm
by krcmd
The applet reports 2.00 gH processor.
Posted: Wed Sep 17, 2008 8:08 pm
by Harryc
Under Processor 'Name", What does it show in that field?
Posted: Thu Sep 18, 2008 8:53 am
by whizkid
You may need to install the proper CPU/chipset driver to get SpeedStep to work properly in XP.
Software Issue or Somebody Swapped the CPU?
Posted: Thu Sep 18, 2008 6:48 pm
by krcmd
Per ID program (also Intel ID prgm):
Pentium M 760
Dothan Brand ID 22
Family 6
Model D
stepping 8
Bus 133.0
Posted: Thu Sep 18, 2008 7:12 pm
by Harryc
A Pentium M 760 is a 2.0Ghz CPU. When the board was changed so was the CPU.
CPU
Posted: Thu Sep 18, 2008 7:14 pm
by krcmd
Easyserv says they didn't do it, and don't have any record of what CPU they received.
Posted: Thu Sep 18, 2008 7:15 pm
by Harryc
Well, someone did it.