Reserved for future use

I am also interested in reports from Alpha and Itanium systems.

I only have win 3.1 on my 486, does this app work with that OS?

drosse1meyer wrote on 2023-04-04, 12:28:

I only have win 3.1 on my 486, does this app work with that OS?

Thank you for your interest and no, I looked into making it work on 3.1 using WIN32S, but did not get very far, further I suspect most systems that only have 3.1 are tight on memory, SIV really needs >= 32 MB to run with reasonable speed.

The oldest Windows it works on is Windows NT 3.51, I run NT 4.00 SP6a on my Socket 3 test system and that works well, usually I use a Intel DX4 @ 100, but at this instant have a i486 SX-S @ 33 MHz and SIV starts in about 20 seconds.

I noticed my local computer recycler had an Intel i486SX-33 so I popped round on my bike and got it. I was quite surprised when it supported CPUID, do all Intel i486SX?

The floating performance is much as I expected, the Menu->File->Save Local took 16 minutes as a result !

red-ray wrote on 2023-04-04, 14:04:

drosse1meyer wrote on 2023-04-04, 12:28:

I only have win 3.1 on my 486, does this app work with that OS?

Thank you for your interest and no, I looked into making it work on 3.1 using WIN32S, but did not get very far, further I suspect most systems that only have 3.1 are tight on memory, SIV really needs >= 32 MB to run with reasonable speed.

The oldest Windows it works on is Windows NT 3.51, I run NT 4.00 SP6a on my Socket 3 test system and that works well, usually I use a Intel DX4 @ 100, but at this instant have a i486 SX-S @ 33 MHz and SIV starts in about 20 seconds.

Alright. I dont even have 32 mb in that machine either. Will test it out for you if I ever upgrade both the OS and RAM. Fyi it has an AMD 120 in it

drosse1meyer wrote on 2023-04-04, 15:29:

Fyi it has an AMD 120 in it

OK and it just occurred to me, please will you post the REPORT output from CHKCPU? This should provide me enough information to know what SIV would likely report.

I think it works best when you run it from DOS without W 3.1 being active.

Will you also post a link to exactly which CPU you have, for my DX2 it would be https://www.cpu-world.com/sspec/SX/SX807.html

If you fancy NT 4.00 on you system it only needs about a 200 MB, I usually have it in a separate partition, but it can share C: with DOS/W3.1. Back when it was released I think I had it on a 20MB i486 DX-50. How much RAM do you have?

See attached

CPU: A80486DX4-120SV8B
https://www.cpu-world.com/CPUs/80486/AMD-A804 … X4-120SV8B.html

drosse1meyer wrote on 2023-04-04, 17:06:

CPU: A80486DX4-120SV8B

Thank you, the AuthenticAMD confirms it has CPUID support so it's easy for SIV and all other programs to correctly report it.

red-ray wrote on 2023-04-04, 17:42:

drosse1meyer wrote on 2023-04-04, 17:06:

CPU: A80486DX4-120SV8B

Thank you, the AuthenticAMD confirms it has CPUID support so it's easy for SIV and all other programs to correctly report it.

👍

My i486 DX-33 arrived today, it's a SX729 so has a CPUID of 0404. With reference to the documentation Windows NT should report Revision FFA4 but FFD0 is reported which is what CPUID 0430 should/would report. It's starting to like like the Revision is next to useless for x32/x86 as the only time it's correct is when the CPU supports CPUID and we don't need to use it at all 🙁

My i486 SX2-50 arrived today, it's a SX845 and supports CPUID, I think all SX2 support CPUID, do they?

It seems to happily run @ 66 MHz and the SIV [Save Local] took a mere 10 minutes rather then the 16 minutes my SX1 took.

I now just need to know what get's reported for an i486 SL and an i486 DX-50.