Socket 478 mATX Intel chipset motherboards with underclocking? \ VOGONS

Socket 478 mATX Intel chipset motherboards with underclocking?

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First post, by Paar

Paar Offline

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Do you know about any mATX boards with socket 478 and an Intel chipset which can at least manipulate a FSB setting? For now I have tested Asus P4GE-MX and P4p800-VM and both are very limiting.

The former does contain an option to manipulate FSB but only from the default value up (e.g. put a 533Mhz Celeron D there and could put a value from 133 to 165 MHz FSB). The latter doesn't contain any underclocking at all.

Reading through manuals it seems that Asrock P4i65G and some Biostar boards with Intel 865 chipsets allow FSB manipulation but I don't want to buy any board in blind faith. Could someone confirm that I can put a 800MHz FSB CPU in there and underclock it with 400MHz FSB setting? Of course it would be nice if there were any board which could lower voltage as well but I have to be realistic - mATX boards in that era were mainly for OEMs and were very berebones.

Reply 1 of 3, by myne

Posted on Yesterday, 13:29

myne Offline

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If you want to spend an hour hunting through the cpu datasheet, in all probability there's a bsel pin that can be wired to power, or blocked to default it to 100fsb.

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Reply 2 of 3, by Ydee

Posted on Yesterday, 13:32

Ydee Offline

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Systool https://www.techpowerup.com/systool/ is not working in your case?

Reply 3 of 3, by Paar

Posted on Yesterday, 14:43

Paar Offline

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Thanks for suggestions, both are quite interesting. Didn't know about the SysTool, never was into overclocking but this could come handy for the other way around.

Bsel pin mod is also interesting and usable even in DOS.

But if there is a motherboard which can be set up through BIOS then I could get the most comfortable option without any sweat. Of course if there is such a board.

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