well alright, well im just gonna grab a K6-III and try it

On some Socket 7 systems, you have to disable the motherboard L2 cache in BIOS, to get the on-chip cache to cover the whole range of installed memory. I had to do that with a 430TX motherboard that had a K6-2+.
Try again with your K6-III+, this time disabling L2 cache in BIOS.

The loss of slow, limited motherboard cache is not too significant with a K6-2+ or III/+, as their caches, while somewhat smaller, are way flipping faster.

Yea I tried that it actually got slower 🤣

another idea occured to me, I could replace the K6-2 with my Pentium Classic 166, and make it a DOS/Windows 3.1 box, though its a PCI only motherboard so sound would be an issue. It has onboard SOLO-1 and I have a few PCI cards, but not sure about sound in pure dos

If memory serves there was a DOS utility called CTU that could also enable the L2 cache on a K6-II+/III/etc. Perhaps you could leave the L2 disabled in BIOS and try that utility out? https://www.philscomputerlab.com/uploads/3/7/ … 7231621/ctu.zip

I need BIOS image for this board to use with a programmer device. There are two versions of BIOS on https://www.ultimateretro.net/en/motherboards/8972#downloads, but they are incorporated into exe files of BIOS update utility.

Can someone advice on extraction of BIOS image from it, or maybe someone have it and can share?

kolmio wrote on 2022-08-07, 17:12:

I need BIOS image for this board to use with a programmer device. There are two versions of BIOS on https://www.ultimateretro.net/en/motherboards/8972#downloads, but they are incorporated into exe files of BIOS update utility.

Can someone advice on extraction of BIOS image from it, or maybe someone have it and can share?

me too

Hi youxiaojie,

The Acer V75M board has a 2Mbit flashchip so it needs a 256KB BIOS image file if you want to use an EEPROM programmer to update the BIOS.
I’ve downloaded both the Release1 (05/03/2000) and Release2 (05/24/2000) BIOS update exe files from TRW and found that they are not compressed, and that the last 262,144 bytes of these 298KB exe’s contains an Acer BIOS image.

With the help of a hexeditor I extracted the BIOS image from both exe’s.
Here are the V75M image files. Please let us know if they work okay.

Cheers, Jan

Chkcpu wrote on 2025-01-13, 15:55:

Hi youxiaojie, […]
Show full quote

Hi youxiaojie,

The Acer V75M board has a 2Mbit flashchip so it needs a 256KB BIOS image file if you want to use an EEPROM programmer to update the BIOS.
I’ve downloaded both the Release1 (05/03/2000) and Release2 (05/24/2000) BIOS update exe files from TRW and found that they are not compressed, and that the last 262,144 bytes of these 298KB exe’s contains an Acer BIOS image.

With the help of a hexeditor I extracted the BIOS image from both exe’s.
Here are the V75M image files. Please let us know if they work okay.

The attachment EA71C0R0.zip is no longer available

The attachment EA72C0R0.zip is no longer available

Cheers, Jan

how do you get it? I try to do it but failed.

candle_86 wrote on 2018-05-04, 15:02:

another idea occured to me, I could replace the K6-2 with my Pentium Classic 166

My friend has this same board and I want to try this as well. But wherever I look, I can´t find confirmation that the Socket of this Mobo will work with Pentiums.

Here https://theretroweb.com/motherboards/s/acer-v75m#docs you can see that the manual mentions "AMD K6-2, S Sharptooth, and Cyrix M2 family processors, with supporting CPU clock up to 450MHz", but also later it says that "The Processor parameter specifies the type of processor currently installed in your system. The system supports Pentium II or Celeron processors" which makes no sense since the socket of this Mobo would not accept those CPUs. Also in the Jumper Settings http://www.uktsupport.co.uk/acer/mb/v75m.htm there are only options for M2 (Cyrix) and K6 (AMD) CPU Types with no mention of Intel.

I wonder if the lack of options for Pentium was based on the fact that maybe these models of IBM Aptivas that came with this Mobo only came with Cyrix or AMD processors, but since the Mobo seems to be Super Socket 7, then it seems that it could play well with a Pentium MMX 166MHz CPU if you get the jumpers configuration right. For example: Bus Clock Ratio at 2.5, CPU Core Voltage at 2.8 and Frequency at 66.6 MHz.