Re: Diehard Pentium 54Classic user needs BIOS help: PC100 busspeednot available with AmiBIOS v8.14 - 10ns SDRAM speed is lowest

wrote:
> Hi there,
>
> I hope you are able to help me or give me some pointers.
> I am one of those diehards who refuse to upgrade their systems every two
> years to the latest GHz CPUs or flashy mother boards just to make
> manufacturers happy. I am very happy with my usually fast enough, 6 year old
> system with:
>
> - Genuine Intel Pentium 54C 200MHz (still rocks after seven years of use)
> - 128MB PC133 - 7.5ns Extended memory.
> - SiS6326 (PC Chips) M570 chipset-motherboard [HSING TECH ENTERPRISE CO.,
> LTD] - 4 years old.
> - AMI BIOS version 8.14 - 1995 [it displays at first boot screen: updated
> 08/14/1998S which is kinda confusing]
> - My board identity is: 51-0814-001437-00101111-071595-570.
> - PC100 compatible for bus speeds 33.3 up to 100MHz
>
> But to get the best out of it I need to increase the bus speed (now running
> very stable on 66.6 x 3) for I am turning this system into a LAN-server with
> 4x 20GB IBM hard drives -- but without increasing the bus speed it kanda
> slows down pretty fast.
>
> I am having trouble to set the bus speed to 100MHz x 2 or anything above 75
> x 2. (it generally crashes before any of my Win95/98/98SE/ME has even come
> through it's startup procedure and plenty writefailures/systemhangs under
> any version of DOS too. And SuSeLinux 6.0 won't pass much further then the
> lilo choice).

The m570 doesn't support a 100 MHz bus. It only supports 60, 66, 75, and
83 and the PCI bus will be overclocked with any of them over 66MHz. At
83 MHz the PCI bus is going to be seriously out of whack.

Btw, the on board sound on those old PCChips socket 7 motherboards
usually kicks the bucket at 83 MHz too.


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