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Problems booting after Processor upgrade

Trish's Escape from Hardware Hell Help Board » Hardware » Motherboard / CPU Related » Problems booting after Processor upgrade « Previous Next »

Author Message
Javier Christian
Posted on Wednesday, August 20, 2003 - 11:01 am:   

Hi, I am working with a PCChips M756MRT motherboard updated to latest BIOS, that was previously using a 500Mhz PIII Socket1 CPU, and 512 MB of Kensington PC-133 SDRAM (running at 100 FSB). I just changed it for a FC-PGA 800MHz PIII (800EB) for the available 370 socket. The manual states that the motherboard support 133 FSB for processors and RAM, but when I boot after choosing 133x6/133 FSB for CPU/RAM the OS (Windows98SE) hangs with several fatal errors. I tried the 133x6/100 combination, but it hangs even before entering the OS. The only combination that works is 100x8/100 but then the Mobo identifies the CPU as a 600Mhz (600E) and the tests I have done show that that is in fact the speed the CPU is running. How do I make it recognize my CPU? Is it motherboard related or am I doomed to re-install the OS??
Posted on Thursday, August 21, 2003 - 9:31 am:   

I have seen this many times with PCchips motherboards and memory issues. The memory switch at 100/133 is usually the culprit and for the most part it is timings. What worked fine at 100 FSB may not fair so well with 133 FSB. Start with conservative bios settings. At default is a good place to start and memory timings at 3-3-3 and adjust from there till you get the machine stabile.
Javier Christian
Posted on Thursday, August 21, 2003 - 11:13 am:   

Thanks. I'll Try that tonight when I get home.

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