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bazzer55
10-20-2004, 01:32 PM
hi folks!
first post and a pretty straightforward question i guess. i build mainly p3 systems as a hobby for people who just have relatively low-end requirements. although i have used 133 ram on 100 boards, i have never had reason to use a p3/133fsb on a 100 board. in this case i am talking about an se440bx-2 board with slot 1 connector. given the ability of the board to select the correct voltage in the case of a variation, is this likely to be a problem, as 133fsb p3's are cheaper to buy than their 100 equivalents; at the higher end at least.
thanks for any info, confirmatory or not!!!
bazzer
Sterling_Aug
10-20-2004, 02:00 PM
Many times, what the BIOS gives you is what you get.

Some BIOS codes have been written expecting future improvements and they work with processors, frequencies, and voltages that were still in development when the BIOS was released.

The best thing is: Try it and see if it works, But keep your finger on the power switch just in case you need to turn off the PC quickly.
The Lodge
10-20-2004, 02:39 PM
Wouldn’t your typical 133fsb cpu run a lot slower on a 100fsb board than a 100fsb cpu would because of the locked multi?
Midknyte
10-20-2004, 02:43 PM
Originally posted by The Lodge
Wouldn’t your typical 133fsb cpu run a lot slower on a 100fsb board than a 100fsb cpu would because of the locked multi?

yup. if the board doesn't support 133fsb, you're going to get less performance. for example the 800EB runs at 6x133, while the 800E runs at 8x100. if you ran an EB in the 440bx, the bios would see the cpu as a 600 (6x100).
The Lodge
10-20-2004, 02:48 PM
Then that would pretty much negate the price difference between the two. Might as well spend the extra couple of bucks and get the 100fsb cpu.
bazzer55
10-20-2004, 03:27 PM
....now that's what i call a forum!!! the fixed multiple is not something that occurred to me at all. actually, the only chip that the latest bios and mobo revision that i have supports at the top end at both 133 and 100 is the 800mhz. the voltages are the same, but in the light of your explanation, it's all academic.
100 fsb it is!
thanks to all you guys who put me right.
i'll be back to test you all again later;)
bazzer