Could anybody please tell me where I am going wrong. I am trying to upgrade the processor in my kids pc. It is a Colossus (Time) with a P5ST-A Mother Board (GMB-P5ST-A....2A5IIG39 Gemlight I have found out so far). The cpu is an IBM 6x86 PR200 (Socket 7). I am trying to upgrade to a Cyrix MII 333GP. When I install the processor, change the jumpers and switch on, it says there is a PR233 6x86 installed?? and locks up on the windows 98 logo screen. I tried flashing the Bios with a version which came on the "drivers cd" but that just seems to lock up and sit there. Is it a bios issue and I haven't got the right version or am I being a pleb and missing something really basic?? Any help would be most appreciated.
Yes, it could well be a problem with BIOS support for the CPU. I can drop a K6-III into my Vision Top VT586-TX and it won't put anything on the screen even though the right volts are achievable.
The parentage of this motherboard has been questioned and we think it's actually an ECS board.
This is the latest BIOS we could find:
ECS P5ST-A (Time Colossus) 11/05/97-SiS-5598-(P5ST-A)C-00 P5ST-A Ver 1.0a 11/05/1997 (146-C-25) and we patched it for 128GB HDD support.
Can you give us the full details of what version you have ? Is it 11/05/97 ?
Just as an example, here's some history from the ECS site on the BIOS for another board (the P5ST-A is unlisted).
Code: Select all2.3 05/29/98 Award® BIOS. 1. IBM 6x86MX / Cyrix M II CPU support 2. Fixed modem ring wakeup fail(Support Ring SMI) 3. Change the year of copyright from 1997 to 1998 4. Fixed bug. When PCI BIOS size > 64k ,post later shadow change error 5. Fixed wrong size of ROM device node if option ROM size is bigger than 16KB 6. AWARD code has some bugs about assign pciirq, so we have by-passing the useless routine 2.3a 06/18/98 Award® BIOS. Add LM78 and keyboard password power on function 2.3c 12/07/98 Award® BIOS. Support Cyrix/IBM MII-300/333 CPU
Well, it's the end of the line for that particular version. However, ECS also made motherboards for PC-Chips and I wonder whether there is a PC-Chips equivalent. (The SiS 5598 chipset was relabelled TX Pro II for PC-Chips). Any chance of a picture ?
Malc emailed some pictures of the board in the box; some in focus and some a bit blurred. It is not an M571 physically as the RAM sockets are parallel to the back of the case. It has the same number of PCI slots, ISA slots and RAM sockets. Can't see the PSU connectors, which are under the PSU in Malc's case, and I can't make out the I/O. I also can't quite read the board ID 15-???-???????
My comment on the maximum M571 disk size was based on the info at the PC-Chips lottery; it seems different people have different experiences, probably depending on the HDD manufacturer.