Regarding this subject, I want to know the same info on my Micron
Millenia(12/95)133.

It has a Micronics M54Hi motherboard.(MB754-70057)(09-00236-36-REV B2)
Phoenix Bios 4.04, M-M54Hi-9PM(This is the bios with the HD cylinder head
calculation glitch in it.  Can't recoginze drives in the 3.276G to 4.0?G range)

The chipset, 82430FX consists ot the 82437FX System Controller(66mhz), Two
82438FX Data Paths, and the 82371FB PCI ISA IDE Xcelerator(PIIX)(33mhz???)

        From what I have been able to learn the 82437FX supports 128M of
main memory.

        Why would the 82437FX be rated at 66mhz and the 82371FB rated at 33mhz?

        The MB has a 12ns 256k SRAM.(L2 cache?)

        Also two MT58LC32K36D7LG chips.  The best I can discover is that
each is a 7.5ns 1Megabit Syncronous SRAM.

        What do these do?

        So what will happen to the operation of my computer when I go from
24Meg of main memory to 80Meg?

        Also, I thought this chipset would support busmastering, but in
Settings/Control Panel/System/Hard Disk Controllers/Intel PIIX PCI IDE
Controller...Bus Mastering Not Supported?????

>Hi,
>Does anyone know if the Abit IT5H v2.0 motherboard with 512 cache (HX chip
>set) requires an extra tag ram chip to cache above 64 megs of memory?  I
>know the Asus T2P4 needs one but the literature on the Abit is elusive.  I
>have seen conflicting info on Anands, Toms and one other site.  If a
>separate chip is needed where do you get one?  Can you check your system to
>find out if is actually caching more than 64 megs when configured properly?
>
>Also I wonder if anyone could shed some light on what happens if you use
>more than 64 megs of memory on a board that only caches 64.   I have an
>older Asus FX chip set board with 96 megs and wondered if I was wasting the
>extra ram.  Some say that you get a small deterioration of speed but it
>seems the same to me and in fact a bit faster than the 48 megs I was
>running prior especially with a lot of programs open.  Comments on this are
>welcomed.  I'd like to know the technical explanation of what goes on when
>you cache more than 64 megs.
>
>Please email as well as to the list.
>Thank you,
>Michael Rubin
>[log in to unmask]
>http://www.netrox.net/~blackblt/
>mailto:[log in to unmask]
>

Thank you for any enlightenment in this area.

Tom


Tom J. Kelly USN(Ret)
Micron, 10M Airguns
Cape Girardeau,Missouri


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