VOGONS


First post, by flupke11

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Rank Oldbie
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Oldbie

I have a working Asus PCI/I-P54NP4 with dual Pentium 133's in the two Socket 5.

The manual only mentions 90 and 100 Mhz Pentiums, which is logical seen that this board has the old 430NX chipset and there was not yet any sighting of the 120,133 and 150 MHz cpu's. Still, the board came with 133 MHz cpu's installed and these are correctly identified.

I have a couple of 200 MHz cpu's (non MMX) which I'd like to use on this board. They work, but at a reduced speed (133). The board doesn't have jumper settings for the internal clock ratio. Only the bus speed and the PCI speed can be chosen (66/60 with PCI 30/33 or 50 with PCI 33).

I do not know how and if I'm abme to run the 200 MHz CPU's at full speed on this board, so I turn towards you. Anyone have an idea?

Reply 1 of 1, by elianda

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Rank l33t
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l33t

Check once more: The 90 runs at 60x1.5 and 100 is 66x1.5, but your current 133 is 66x2.0. So there must be a way to change the multiplier on the board (at least from 1.5 to 2.0).

The BF pins of the CPU set the multiplier.

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