The CPU may work, it depends on the mobo model #, but it's only going to operate at the fastest CPU speed/bus speed that the mobo supports. If your mobo only supports 100mhz bus tops, and let's say for example its max multiplier is 6, this means the fastest CPU speed will be 600mhz.
Most 440BX boards can support PIII's, but some only with 100mhz bus while others can support 100 and 133mhz bus. You may want to look into a slocket adapter and see if your mobo supports them. These can allow you to use an even faster socket 370 (aka PPGA) PIII on a slot 1 board. Unfortunately, it sometimes can be trial and error since most mobo manufacturers don't mention this. If you'd be happy with an 850mhz CPU, and if Dell says the mobo will support an 850mhz CPU @100mhz bus, then I'd get the 100mhz bus CPU to avoid any compatibility problems. BTW, I don't think there's such a thing anyway as a PIII 850 with 133mhz bus. That would mean a multiplier of about 6.4 which is impossible. The PIII's with 133mhz bus are those who's speeds end in multiples of 33 (633, 733, 766, 833, 866, etc.). Any one listed as 850mhz w/133mhz bus is either a misprint, or actually 800mhz. -Clint Happy Holidays to all & God Bless Clint Hamilton, Owner http://OrpheusComputing.com ) http://ComputersCustomBuilt.com ----- Original Message ----- From: "Roger Carnell" <[EMAIL PROTECTED]> Hello, Does anyone know if Intel Pent. III , Slot 1, Processors are backward compatible as far as bus speed. Can I put a Processor with a 133 mhz bus on a board with 100 mhz bus? Will the faster processor just run at the slower speed? The Board has the 440BX chipset. This is a Dell PC with a 450 Mhz CPU and I want to put in an 850. Some of the 850s I'm finding are 133 bus speed. On the Dell website, it lists up to a 850 cpu but with a 100 mhz bus. I'm guessing that's all that will work but thought I would ask. Thanks, Roger C. ============= PCWorks Mailing List ================= Don't see your post? Check our posting guidelines & make sure you've followed proper posting procedures, http://pcworkers.com/rules.htm Contact list owner <[EMAIL PROTECTED]> Unsubscribing and other changes: http://pcworkers.com =====================================================
