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I.nfraR.ed - Athlon XP 1800+ Thoroughbred @ 2954MHz - 34sec 349ms SuperPi - 1M


ivanov

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I had a video somewhere. Board has soft L12/self-modded bios + hard L12 and mobile mods via switches. When I flip the mobile mod switch board detects it as XP-M. Doesn't happen with other Thoroughbreds. The chips is exactly the one shown in the picture.

Uploading video now...

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Here's the video

Thought somebody will ask, so made one long time ago. The only thing that changes is the specification field. Name stays the same - XP-M.

Haven't tried with older version though. When I bench it next time will try.

Edited by I.nfraR.ed
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No, I was wrong. It's 166 and 200MHz FSB detection mods. You know that for 200MHz you need 2 wires, so first switch is 166 and 1+2 is 200MHz. Don't know why board detects it as XP-M when 200MHz L12 applied.

You're right about Mobile mod, of course. It can be done via bridges on the cpu.

L5:2 is opened on the cpu, so there's no reason to be detected as XP-M...

Edited by I.nfraR.ed
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It's 166 and 200MHz FSB detection mods. You know that for 200MHz you need 2 wires, so first switch is 166 and 1+2 is 200MHz.

This I understand.

 

Don't know why board detects it as XP-M when 200MHz L12 applied.

You're right about Mobile mod, of course. It can be done via bridges on the cpu.

L5:2 is opened on the cpu, so there's no reason to be detected as XP-M...

This I don't. Bridge mods don't work on NFII boards, only VIA and SiS. Normally I would have just chalked it up to a condensation short, but it shouldn't make a difference on a NFII based board.

 

Not questioning the result BTW, just asking how it reads XP-M on a non-mobile chip. Very odd. Vid and pic have you pretty much covered. Very wise. ;)

Edited by Mr.Scott
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I searched for some old scores - afaik all my XP 1800+ T-Bred scores since 2010 are made with this chip.

It started detecting it as XP-M somewhere at the Q4 of 2012. I've switched a lot of boards, but there's only one final version of my modded bios. Haven't updated it for ages.

 

Looking at the other recent score with 1700+ T-Bred with the same board, it doesn't show up as XP-M, while I'm still running the same cpu-z, bios and probably XP install - http://hwbot.org/submission/2367628_i.nfrar.ed_superpi___1m_athlon_xp_1700_thoroughbred_35sec_0ms

 

It's not a condensation issue for sure, because it was the same on water, plus the video shows it running on water at 2.7GHz+.

Last time I checked, IIRC there was no way to revert back to Athlon XP either (switches didn't do anything). Might try reflash bios.

Edited by I.nfraR.ed
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