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Asus A7V133-VM is one epic overclocker

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First post, by dj_pirtu

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Found an Asus A7V133-VM from my stash and got an idea to build a smaller mATX system for retrolanparties.

Specs:
-Asus A7V133-VM (BIOS 1008)
-Athlon XP 2500+ (Barton, modded to mobile-variant)
-2x256MB Kingston PC133
-Radeon X800Pro 256MB
-ESS SOLO-1
-Intel Ethernet Pro/100+
-64GB MicroSD-card as a HDD

Chipset is KM133A so about the same as KT133A but with integrated ProSavage display adapter. I have few Abit KT7A boards and those can take around 150FSB stable, with new capacitors or not, doesn't make a lot of difference. But this damn thing takes 170MHz(!). I'm running memory at 2-2-2 settings. I have never seen a motherboard with SDR memory that goes like this...

This is nice little all-arounder because I can set FSB and multiplier quite freely in DOS or in Windows. Dual-boots Windows 98SE and Windows XP.

Reply 2 of 5, by dj_pirtu

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Just Prime95 for few hours and seems stable but memtest is on the way too.

Reply 3 of 5, by rasz_pl

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What are the BW/latency figures with those timings? I think Sisoft Sandra and Aida can measure this. This might even beat DDR1 300.

https://github.com/raszpl/FIC-486-GAC-2-Cache-Module for AT&T Globalyst
https://github.com/raszpl/386RC-16 memory board
https://github.com/raszpl/440BX Reference Design adapted to Kicad
https://github.com/raszpl/Zenith_ZBIOS MFM-300 Monitor

Reply 4 of 5, by dj_pirtu

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I'm struggling to find Sandra that works in Windows XP, 2008, 2010 and 2011 won't work. But I run 2001 in Windows 98SE.

EDIT: Now I'm finding the highest FSB where memtest gets one pass without errors. 172FSB running at the moment and looking good... AGP and especially PCI clock are getting quite high.
EDIT2: Running 3DMark01SE @172FSB and got 15219.

Reply 5 of 5, by dj_pirtu

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Swapped CPU to a better one.

Everest is @170FSB because 172FSB is just too tight, crashes on boot sometimes after restart. BIOS freaks out.

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