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Sis 540 motherboard project

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Reply 20 of 24, by Kruton 9000

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Sphere478 wrote on 2025-04-21, 05:55:
havli wrote on 2025-04-20, 10:12:

I think it survived, no magic smoke 😀

Thank goodness.

So did any of these 133mhz socket 7s ever have a functional AGP? Is there a mobo model to look for?

Quite often integrated graphics in a chipset are connected via the internal AGP or PCI bus. I think this is because this approach simplifies the integration of the graphics chip into the chipset. In this case, the pins on the AGP bus become busy and it becomes impossible to make a full-fledged AGP connector. This is most likely the situation with the last Super Socket 7 chipsets.

Reply 22 of 24, by nickles rust

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analog_programmer wrote on 2025-04-18, 18:19:

I'm attaching the latest PC Chips M586LMR AMI BIOS (010514S) from TRW site with almost all of its settings unlocked.

Thanks for posting this. Do you know if there is a similar suite of un-lockable settings for the SiS530? I saw on Jan's web site that he has a K6 patched bios for the Asus P5S-B. I was looking at one of these for sale, but I wonder if its bios will be too limited. I'm trying to find a K6 board that will work with later PCI or PCIX disk controllers.

Reply 23 of 24, by analog_programmer

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nickles rust wrote on 2025-04-22, 22:33:

Thanks for posting this.

Does this modified BIOS work fine, if you've already tried it?

nickles rust wrote on 2025-04-22, 22:33:

Do you know if there is a similar suite of un-lockable settings for the SiS530? I saw on Jan's web site that he has a K6 patched bios for the Asus P5S-B. I was looking at one of these for sale, but I wonder if its bios will be too limited. I'm trying to find a K6 board that will work with later PCI or PCIX disk controllers.

I can check if there are some hidden useful settings in the BIOS menus for Asus P5S-B motherboard. I still can't help with adding support for new CPUs (like adding a K6-2+/III+ support), but yeah, there's already a patched version with added support for K6 "plus" CPUs for this board on the Jan's site.

I'll send you a PM later, so we don't dilute this thread with off-topic posts about another model motherboard.

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Reply 24 of 24, by nickles rust

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analog_programmer: Thanks for sending that message!

About the SiS540 build: Were you able to replicate the results that scrap computing shared in the video? A 133MHz bus should really help on Socket 7...