That's good to hear! But I thought you said earlier that you had already tried my modified BIOS?

Yes - unfortunately only without testing the mice. I had measured the differences in memory access between AMI and AWARD with Speedsys...

Now I wanted to test the Cyrix 5x86-100GP. I use this settings:

The computer hangs in the POST screen after HDD detection... Further tests showed that the BIOS of the Intel Pro 1000 GT network card did not start. The same effect is also with the UM8810P-AIO. Without this network card, the board starts everything normally. I am frustrated...

i have an idea: is it possible to figure out how the circuit of cpu voltage jumpers(jcv3 and jcv4) work so we can use more levels of voltage? currently there are only 3 levels: 3.45v, 3.8/4.0v(dunno which is correct) and 5.0v.
also, what does the "factory reserved" jm1 and jv1 do? can anyone figure out from the circuit?
i have a guessing that jv1 probably controls the bios rom voltage(eprom/flashrom)...

feipoa wrote on 2020-04-22, 21:06:

I don't have the manual scanned, but there are jumper settings online. I only have a little bit of the manual scanned by someone else. It was a pretty poor scan job. Attached.

Attaches is also the BIOS with PS/2 support enabled.

Would you like to scan the whole manual so I can put it to our project ? 😀 The Ultimate Hardware 2019 (UH19) project- a stason.org/TH99 alternative

Also if anyone can make a good photo of their board, I can add it too 😀

Anyone have jumper settings specific to the Am5x86-133 for this motherboard? I can't seem to get one of these chips stable on this motherboard, and I can't find any entry in the manual for it... regardless of how I set it up (cyrix 586 or intel dx4 WB jumper settings) it will boot and runt some benchmarks but won't run quake and will hang when attempting to load windows...

JC8: 2-3
JC5: 3-4, 5-6
JC6: 4-5, 6-7
JC1: resistor bank in
JC3: 5-6, 7-8, 9-10

and try run cache/memory slower

Socket3 wrote on 2020-07-16, 20:18:

Anyone have jumper settings specific to the Am5x86-133 for this motherboard? I can't seem to get one of these chips stable on this motherboard, and I can't find any entry in the manual for it... regardless of how I set it up (cyrix 586 or intel dx4 WB jumper settings) it will boot and runt some benchmarks but won't run quake and will hang when attempting to load windows...

just use p24d jumper setting, but set jc8 to 2-3.
as for bios, i suggest to disable "ide buffered write"(or something like this), enabling this option causes my system to fail any write access to the disk, and dos would give a disk errror after a long time.
since you are running at 33fsb, there should not be much problem with ram and cache, except that you should set dram speed to "faster".

noshutdown wrote on 2020-07-17, 04:03:

just use p24d jumper setting, but set jc8 to 2-3. as for bios, i suggest to disable "ide buffered write"(or something like this) […]
Show full quote

Socket3 wrote on 2020-07-16, 20:18:

Anyone have jumper settings specific to the Am5x86-133 for this motherboard? I can't seem to get one of these chips stable on this motherboard, and I can't find any entry in the manual for it... regardless of how I set it up (cyrix 586 or intel dx4 WB jumper settings) it will boot and runt some benchmarks but won't run quake and will hang when attempting to load windows...

just use p24d jumper setting, but set jc8 to 2-3.
as for bios, i suggest to disable "ide buffered write"(or something like this), enabling this option causes my system to fail any write access to the disk, and dos would give a disk errror after a long time.
since you are running at 33fsb, there should not be much problem with ram and cache, except that you should set dram speed to "faster".

wouldn't that set cache to WT? I'll give it a shot since the p24c setting i've been trying don't seem to work. Oh, I should mention my board has the AMI GUI bios. And thanks for the reply!

Socket3 wrote on 2020-07-19, 08:36:

wouldn't that set cache to WT? I'll give it a shot since the p24c setting i've been trying don't seem to work. Oh, I should mention my board has the AMI GUI bios. And thanks for the reply!

i've confirmed it to work, jc8 sets 3x/4x ratio for amd486dx4 with 16k wb cache.
its jc7 that sets wb cache to wt, which is also the same pin that sets 2x/3x ratio for amd486dx4 with wt cache.
i am also using the ami bios that it came with. i am not sure if using award bios would give any advantage.
i also have a few concerns on swapping bios:
1. did the board come with eprom or flashrom?
2. does the bios socket support writing flashrom?
3. is there any jumper that toggles voltage for eprom and flashrom?

I have ver 2.1 of this board and I'm having some trouble with it. I found it without its BIOS chip.

I successfully found a replacement eeprom chip and flashed it with the P/S2 modified BIOS. It boots into bios just fine (with its familiar Awards logo at the top), but once it completes it boot cycle and searches for a drive, I just get a black screen. No response. Computer remains running with no video output. It detects my gotek and CF card in the setup. I get a printout of 'CF drive' right before it completes its boot. I used the auto detect function in setup menu and it recognizes the CF card as being a 1998mb drive (its a 2gb card ). And I believe it detects the gotek as a 1.44 floppy in the setup menu (no printout in the boot cycle though).

I'm using a AM5x86133 with 32mb FPM ram. It detects the 5x86 chip and printouts out its label and clockspeed on boot up.
I get fine output with either a PCI or ISA video card.