SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

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Re: SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

Postby gerwin » 2019-1-03 @ 02:37

gerwin wrote:Today I finally set-up a system with an Athlon XP-M processor. This processor supports "Powernow!", and I wonder how similar the implementation is compared to the K6 mobiles.

SetMul v1.23 now works with the K7 Athlon XP-M, and theoretically also with the Athlon 4 Mobile. It can do 3.0x to 16.0x.
What is still pending:
- Check the maximum supported multiplier for each processor.
- Do a hardware check to verify SetMul properly detects Athlons without PowerNow.
- Maybe some diagnostic info on the voltage setting, since one cannot change multiplier without setting the voltage as well.
- Look into multiplier support above 16.0x.
- Look into K8 support?
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Re: SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

Postby appiah4 » 2019-1-03 @ 04:40

K8 support would be sweet :)
1989:A500|+512K|ACA500+|C1084S
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Re: SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

Postby doaks80 » 2019-1-03 @ 05:40

gerwin wrote:
gerwin wrote:Today I finally set-up a system with an Athlon XP-M processor. This processor supports "Powernow!", and I wonder how similar the implementation is compared to the K6 mobiles.

SetMul v1.23 now works with the K7 Athlon XP-M, and theoretically also with the Athlon 4 Mobile. It can do 3.0x to 16.0x.


I have a socket462 mobo with an ISA slot. Now i might have a use for it :)
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Re: SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

Postby Falcosoft » 2019-1-03 @ 10:05

appiah4 wrote:K8 support would be sweet :)

A64LOWP works with K8. It can set both supported multipliers and frequencies freely. It can also show the startup and maximum possible FID/VID.
http://falcosoft.hu/dos_softwares.html#a64lowp

@Gerwin:
Nice, as I said earlier I have no Athlon XP-M/Athlon 4 Mobile to test with, so could you test also my K7 hacks in A64LOWP by running ATHLON4.BAT? (it's just a real time multiplier translator for A64LOWP).
Some other questions:
1. Have you solved the chipset settings dependency in case of Athlon XP-M and desktop boards?
https://web.archive.org/web/20170822100 ... Tweaks.htm
2. What's the problem with above 16x multipliers? According to Athlon XP-M/Athlon 4 Mobile multiplier tables e.g. 17x should work the same way as 16x.

If you want to add K8 support to Setmul I can help and also the source code of K8 FID/VID setting logic is available in A64LOWP's package.
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Re: SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

Postby appiah4 » 2019-1-03 @ 11:46

Falcosoft wrote:
appiah4 wrote:K8 support would be sweet :)

A64LOWP works with K8. It can set both supported multipliers and frequencies freely. It can also show the startup and maximum possible FID/VID.
http://falcosoft.hu/dos_softwares.html#a64lowp


Oooohhh, Niiiice! :)
1989:A500|+512K|ACA500+|C1084S
1992:HIPPO-VL+|DX2-66|8M|GD5428|CT2290|S2
1995:PCI597-1|P133|32M|Trio64|V1|CT3980/2M
1998:S1573S|K6-2/400|64M|RagePro|V2/SLI|CT4500/32M
2001:GA-6OXT|PIII-1200|512M|GF3Ti200|MX300
2004:K8V-D|3700+|2G|X1950P|SB0350
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Re: SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

Postby gerwin » 2019-1-04 @ 00:29

Falcosoft wrote:Nice, as I said earlier I have no Athlon XP-M/Athlon 4 Mobile to test with, so could you test also my K7 hacks in A64LOWP by running ATHLON4.BAT?

I just tested it. The bat file somehow does not want to do the commands using these %1 switches. So instead I made the bat file simpler and ran all the options there: They work, and the processor speed that I read out matches with what was indicated in the bat file.

Falcosoft wrote:Have you solved the chipset settings dependency in case of Athlon XP-M and desktop boards?

No, I just tried it on my A7V600 motherboard and Powernow switching worked right away. But thanks for the warning and the link.

Falcosoft wrote:What's the problem with above 16x multipliers?

Nothing really, just that my SetMul source table handling for C3/K6/K7 maxed out 16.0x. But I just increased that to 24.0x this evening. To test it I modified my mobile Athlon processor with a small cut in the L6 bridges: Now multipliers up to 23.0x are accepted for testing.

Falcosoft wrote:If you want to add K8 support to Setmul I can help and also the source code of K8 FID/VID setting logic is available in A64LOWP's package.

I appreciate that, at least for testing the K8, when I get to that part.
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Re: SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

Postby appiah4 » 2019-1-04 @ 04:37

I just acquired a VIA C3 667MHz CPU, not the most exciting thing ever but it's my first C3 and I'm looking forward to trying SetMul with it. :cool:
1989:A500|+512K|ACA500+|C1084S
1992:HIPPO-VL+|DX2-66|8M|GD5428|CT2290|S2
1995:PCI597-1|P133|32M|Trio64|V1|CT3980/2M
1998:S1573S|K6-2/400|64M|RagePro|V2/SLI|CT4500/32M
2001:GA-6OXT|PIII-1200|512M|GF3Ti200|MX300
2004:K8V-D|3700+|2G|X1950P|SB0350
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Re: SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

Postby gdjacobs » 2019-1-04 @ 17:59

Probably a Samuel 2, so not as flexible as an Ezra or Ezra 2. it'll give you a nice first taste.

Ideally you'll want a BX board having FSB clocks programmable by Rayer's SMB tool -- try to keep your eyes open for one.
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Re: SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

Postby doaks80 » 2019-1-04 @ 20:42

gdjacobs wrote:Probably a Samuel 2, so not as flexible as an Ezra or Ezra 2. it'll give you a nice first taste.


I don't think there is an Ezra2, and the only difference between Ezra and Sam2 is Tualatin support. Ezra also goes up to higher clock speeds.
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Re: SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

Postby gdjacobs » 2019-1-05 @ 01:15

There are two versions of Ezra with the second offering more multipliers (16 vs 12). Going by Gerwin's info, he might have a Sam2 that also supports the 12 multiplier steps of the Ezra not-T. The Ezra uses a bit less juice, though.

Either way, I think he'll find it very yummy.
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Re: SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

Postby appiah4 » 2019-1-06 @ 21:50

gdjacobs wrote:Probably a Samuel 2, so not as flexible as an Ezra or Ezra 2. it'll give you a nice first taste.

Ideally you'll want a BX board having FSB clocks programmable by Rayer's SMB tool -- try to keep your eyes open for one.


It's not a 667A but a 667 so I guess it's actually a Samuel1 I think?..
1989:A500|+512K|ACA500+|C1084S
1992:HIPPO-VL+|DX2-66|8M|GD5428|CT2290|S2
1995:PCI597-1|P133|32M|Trio64|V1|CT3980/2M
1998:S1573S|K6-2/400|64M|RagePro|V2/SLI|CT4500/32M
2001:GA-6OXT|PIII-1200|512M|GF3Ti200|MX300
2004:K8V-D|3700+|2G|X1950P|SB0350
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Re: SetMul - Multiplier control for VIA C3 / AMD K6 Mobile / Cyrix 5x86

Postby gdjacobs » 2019-1-07 @ 03:54

Spin DOS up on it and see what SETMUL can get it can do!
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