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Last edited by FesterBlatz on When I get some time tonight I’ll look closer and see if I can figure out which jumpers are for the multipliers. I also have reason to suspect this is the clock generator for the SMT Terminator. This site hosts no abandonware. The more I learn, a,i more I realize how much I don’t know. Others will run well at 3. That is the case with SiS boards anyway.

Has anyone else experienced this? I’d use a trimmer rather than a fixed resistor if you’re testing for an IBM 5x I’d be happy run some time demos.

(PDF) M1487 Datasheet download

One of my cyrix 5x chips needed 3. I’d like to be sure it’s an even comparison Users browsing this forum: Dual Xeon X 4. I suspect the memory performance differences may be related to the fact that you are using EDO memory, which not always means better performance in I bought these two boards from a Ukrainian eBay seller and after some minor repairs both are in tip-top shape.


I could probably epoxy an angled pin header right to api top of the clock generator to add third jumper. Besides needing to add a 3rd clock speed jumper S2 to the clock generator, I think the most difficult part of achieving 66MHz might be figuring out which jumpers are the PCI divider assuming it has one and CPU multiplier. If anyone in the states has a spare S3 Treo64 they’d like to send I’d gratefully accept, otherwise M14487 can hunt one down on eBay.

I have never witnessed first hand or second hand any improved benchmark results when using EDO on a PCI motherboard. The 3 jumpers to the right of the clock generator controls the FSB. Since I’d likely never need to use the 4V option, I could always replace the relevant divider resistor to change the 4V selection to 3.

VOGONS • View topic – A Tale of Two Motherboards (ALi vs SIS)

I’m m14887 adding the manual in case someone stumbles over this thread in the future and needs it. If you don’t want to remove the sticker, you can usually tell if it is UV EPROM by noticing the thickness of the chip and the sandwich look to it. Alli to General Old Hardware.


Sure enough the memory benchmarks dropped by a pretty noticeable amount, so it does seem like the ALi chipset will indeed leverage EDO RAM when available and unlike SIS, provides a tangible improvement in performance. I’ll have to take a look at modbin, it would certainly be useful to have some control over parity since most of my DRAM modules are bit.

Thanks for the detailed reply! The one above to the left of the clock generator controls the PCI divider. Then I put sticks fromm and in the machine assuming that they are FPM memory but I’m getting the same results as before. One thing to note: And stick with K cache. Does anyone familiar with either of these boards have any comments or suggestions on any particular settings I may need to adjust on either board that may account for such a dramatic difference?

Faster than SiS as well. Also, have you read this post? Perhaps RAM write to 1 ws. I checked the ram sticks and 2 of them out of 3 were EDO. Otherwise, m11487 I could sneak a trimpot in there somewhere too.