Having problems with your IBM NetVista PC Desktop ?

Trying to upgrade cpu.

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\015 Please help, i am currentry running a netvista 8303 21a, MB is a 02R4084 (845G chipset)400/533. P4 2.0GHz 478socket (512,L2)400FSB. 2xkingston 512Mb DDR pc3200. 400w power supply.XP sp3. latest bios update from lenovo(24jy55usa). GF6600gt video. all works fine, from info ive read this same motherboard and same bios is also used with cpu's up to 3.2GHz on 533FSB so i orded a 'P4 2.8GHz/1M/533 prescott cpu plugged it in ,grease+heatsink- turned on and no boot(fans on and HD spins but no reading noise.) no power up to monitor, cpu cold.no beeps. refit old 2.0GHz cpu boots ok,did a basic skeleton strip and set graphics to onboard, 1xstick of ddr-same no boot. reset cmos by removing battery - still nothing refit 2.0GHz cpu boots fine reset time and date ??? am i missing something? MB seems to be auto-detect but wont reconize this 2.8GHz cpu ?? can anyone shed some light on this for me, thank you\015

Answers :

Here's a direct link to the service manual of the NetVista 8303-21A:
http://download.lenovo.com/ibmdl/pub/pc/pccbbs/netvista_pdf/24p2969.pdf

On page 13 of this manual:
Microprocessor (varies by model type): Intel® Pentium® 4 processor with 256 KB or 512 KB of internal L2 cache memory and Intel NetBurst™ micro-architecture.

It seems that the computer's motherboard does not support Intel P4 processors with more than 512 KB of internal L2 cache. That's why your P4 2.8GHz/1M/533 Prescott processor did not work.
You will have to either buy another processor with 512 KB L2 cache, or replace your motherboard with one which supports the new processor.
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