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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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 Posted: Sat Aug 10, 2013 10:10 am Post subject: 40 FSB socket 5/7 motherboards |
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I have a few 80MHz 6x86 I need to test, but my main test board only goes down to 50FSB
Anyone aware of any board models that have 40FSB as a setting?
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http://www.x86-guide.net/Neon-WA/en/collection.html |
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frag_
Joined: 17 Nov 2008
Posts: 4015
Location: Estonia
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Sat Aug 10, 2013 10:37 am Post subject: |
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cool
least there are some know around.. not some embedded board only thing
I have about 120 socket 5/7 boards.. looks like worth sorting through and see if any also have 40FSB
other model numbers known will be still helpful
Some boards dont have the FSB speeds silkscreened on the boards.. so if I'm aware of models to look for it will help greatly
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There are 10 types of people in this world:
those who understand binary and those who don't. ~Author Unknown
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frag_
Joined: 17 Nov 2008
Posts: 4015
Location: Estonia
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| Posted: Sat Aug 10, 2013 10:38 am Post subject: |
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You can change quartz on any with 50 or 60 and get ~40 
And many mobos with 3 or 4 jumper switches have undocumented frequences, not sure about 40 but 75, 83 are often.
I have reverse problem, trying to find one with >140  |
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Antinomy
Joined: 29 May 2012
Posts: 243
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| Posted: Sat Aug 10, 2013 7:02 pm Post subject: |
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frag_, what do you want it for?
It's definitely not MVP3 - they go up to 133MHz only. And not Aladdin - these boards are up to 140 the best. But there are some SiS 530 boards that have 133, 140 and 150 setting.
If you're interested, I'll try to find the model.
NEON_WA, I'd go for older chipsets like 430NX, Opti. I've got PAT54PV and it has not only 40MHz bus but 33MHz too (and VLBus )  |
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Chook
Joined: 29 Oct 2008
Posts: 2250
Location: Australia
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| Posted: Sat Aug 10, 2013 9:13 pm Post subject: |
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I'd be trying undocumented jumper settings. That works on some 486 boards to get bus speeds as slow as 8MHz. The slowest computer that can run Windows XP is a Pentium Overdrive running at 8MHz!
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debs3759
Joined: 18 Jan 2006
Posts: 9477
Location: Northampton, Divided Kingdom
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| Posted: Sat Aug 10, 2013 10:31 pm Post subject: |
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LOL, I should have known someone here would have tried that! Not sure I would even try running XP on a stock 486
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frag_
Joined: 17 Nov 2008
Posts: 4015
Location: Estonia
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| Posted: Sun Aug 11, 2013 4:08 am Post subject: |
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Antinomy
Overclocking of course!
I have:
Two Asus P5A-B (Aladdin V, undocumented 125 and 133), both rock solid at 120 and at the edge of stability at 125.
Gigabyte GA5-AA (Aladdin V), not stable at 140, cpu-z screenshoting is possible
Zida T530B (sis5595) have 133 documented and working, but as i remember performance was low.
It even don't have L2 cache. |
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Antinomy
Joined: 29 May 2012
Posts: 243
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| Posted: Sun Aug 11, 2013 6:14 am Post subject: |
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SiS 5595 sucks
Need to test my P5A. |
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vetz
Joined: 23 Apr 2012
Posts: 24
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| Posted: Tue Feb 11, 2014 6:08 pm Post subject: |
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| Asus PCI/I-P54SP4 -Socket 5 (SIS 50X chipset) supports 40mhz FSB. |
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