VOGONS


Reply 200 of 208, by Falcosoft

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Joseph_Joestar wrote on 2020-02-18, 07:06:

Anyone tried SetMul with a Duron on a SocketA system? I have an Abit KT7A and I'm thinking about downgrading my AthlonXP 1500+ to a Duron 700 in the hopes of getting more slowdown choices.

Currently, SetMul only allows me to disable the L1 cache on the AthlonXP which puts it at around 386 levels, and that's really awesome. However, I'd like something not quite as slow for mid-late 90s games like WarCraft 2 and Red Alert which have issues with overly fast screen scrolling.

Is it possible for SetMul to change the multiplier on the Duron and make it run at something like 200 MHz? For reference, the multiplier settings in my BIOS only go down to 5x.

1. There is no point in replacing your Athlon to Duron for more slowdown choices. Every SocketA desktop CPU has the same minimum multiplier(5x) and cache disabling option with your board . Only L1 cache disabling is possible (which also means disabled L2 cache) so a Duron and an Athlon with disabled L1 cache have the exact same speed. Even with caches enabled the difference is minimal at the possible minimum 500 MHz (5x100).

2. Setmul can only set K7 multipliers in real time with mobile K7 CPU (Athlon XP-M). You can make a desktop CPU a mobile one by modifying some bridges:
http://fab51.com/cpu/barton/athlon-e24.html
https://web.archive.org/web/20170912115837/ht … tiplier_FAQ.htm
The above modifications can work with your Athlon XP but definitely not with your Duron 700. The processor must have some MSR registers for this to work and only Morgan+ Durons have them. Your Duron 700 is a Spitfire without PowerNow! MSR registers.
But unfortunately on KT7-A it's not enough since it's a desktop and not a mobile board. You also have to manually tune your chipset for Setmul to be able to set multipliers on the fly:
https://web.archive.org/web/20170822100906/ht … html/Tweaks.htm

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Reply 201 of 208, by Joseph_Joestar

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That's too bad, I was hoping for some K6 style granularity with the slowdown.

Ah well, the Duron cost me only 5 EUR, so no big loss.

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Reply 202 of 208, by SaxxonPike

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Thank you so much for this utility!

I just grabbed v1.24 to test with an Athlon XP-M 3000+. I have it installed in a KT133A board, the Soltek SL75-KAV. The processor works great and is stable in this board. Crystal can set the multiplier in Windows without issues all the way up to the processor's reported maximum, 16.5x. The startup multiplier and FSB frequency are configured via jumpers on the motherboard. Voltage is configured via a BIOS setting.

SetMul shows all the current settings correctly. Disabling or enabling the L1 cache with SetMul seems to work fine. However, when I attempt to use SetMul to change the multiplier to anything else, it hangs at "Setting K7 PowerNow..", regardless which drivers or TSRs I boot with.

Here's a captured screen from the machine:

k7hang.png
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k7hang.png
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Anything I should try, or additional info you will need to diagnose this one?

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Reply 204 of 208, by kolderman

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MKT_Gundam wrote on 2020-07-29, 01:56:

Past week , saved a VIA c3 700Mhz (100fsb and 1,6v -Saumel 2?).
At BIOS Menu (ASUS CUV4x), seems the multiplier is locked.
Any chances to change the multiplier at SetMul?

100% chance. Why the C3 is so nice.

Reply 205 of 208, by MKT_Gundam

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kolderman wrote on 2020-07-29, 02:13:
MKT_Gundam wrote on 2020-07-29, 01:56:

Past week , saved a VIA c3 700Mhz (100fsb and 1,6v -Saumel 2?).
At BIOS Menu (ASUS CUV4x), seems the multiplier is locked.
Any chances to change the multiplier at SetMul?

100% chance. Why the C3 is so nice.

Yes. Its working!
Lowest setting for me 3x 66.6 (200mhz)
At speedtest i got 13,1 with L1/2 disabled , BPD and ICD.
Using freeDOS and no soundcards.

Reply 206 of 208, by kolderman

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MKT_Gundam wrote on 2020-07-29, 03:07:
Yes. Its working! Lowest setting for me 3x 66.6 (200mhz) At speedtest i got 13,1 with L1/2 disabled , BPD and ICD. Using freeDO […]
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kolderman wrote on 2020-07-29, 02:13:
MKT_Gundam wrote on 2020-07-29, 01:56:

Past week , saved a VIA c3 700Mhz (100fsb and 1,6v -Saumel 2?).
At BIOS Menu (ASUS CUV4x), seems the multiplier is locked.
Any chances to change the multiplier at SetMul?

100% chance. Why the C3 is so nice.

Yes. Its working!
Lowest setting for me 3x 66.6 (200mhz)
At speedtest i got 13,1 with L1/2 disabled , BPD and ICD.
Using freeDOS and no soundcards.

That sounds about right. I think my k6-3 got around 11 at slowest settings. The C3 will scale better over the 486-pentium range though.

Reply 207 of 208, by MKT_Gundam

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kolderman wrote on 2020-07-29, 03:37:
MKT_Gundam wrote on 2020-07-29, 03:07:
Yes. Its working! Lowest setting for me 3x 66.6 (200mhz) At speedtest i got 13,1 with L1/2 disabled , BPD and ICD. Using freeDO […]
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kolderman wrote on 2020-07-29, 02:13:

100% chance. Why the C3 is so nice.

Yes. Its working!
Lowest setting for me 3x 66.6 (200mhz)
At speedtest i got 13,1 with L1/2 disabled , BPD and ICD.
Using freeDOS and no soundcards.

That sounds about right. I think my k6-3 got around 11 at slowest settings. The C3 will scale better over the 486-pentium range though.

I waiting for my slotcket and put this or my Erza 800 on BX board.
My CUV4x has only 1 ISA slot. I want put another isa soundcard + arueal vortex2 or Sb live.

Reply 208 of 208, by kolderman

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MKT_Gundam wrote on 2020-07-29, 03:50:
kolderman wrote on 2020-07-29, 03:37:
MKT_Gundam wrote on 2020-07-29, 03:07:
Yes. Its working! Lowest setting for me 3x 66.6 (200mhz) At speedtest i got 13,1 with L1/2 disabled , BPD and ICD. Using freeDO […]
Show full quote

Yes. Its working!
Lowest setting for me 3x 66.6 (200mhz)
At speedtest i got 13,1 with L1/2 disabled , BPD and ICD.
Using freeDOS and no soundcards.

That sounds about right. I think my k6-3 got around 11 at slowest settings. The C3 will scale better over the 486-pentium range though.

I waiting for my slotcket and put this or my Erza 800 on BX board.
My CUV4x has only 1 ISA slot. I want put another isa soundcard + arueal vortex2 or Sb live.

The Live might have issues with the Via chipset on that board, the vortex2 will be fine though.