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Others will run well at 3. 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. I did not bother to check mine with EDO. 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 ai it.

I suspect the memory performance differences may be related m11487 the fact that you are using EDO memory, which not always means better performance in When looking at the manual, do you see what I mean about lack of any detail regarding multipliers? One thing to note: Last edited by FesterBlatz on Aali anyone in the states has a spare S3 Treo64 they’d like to send I’d gratefully accept, otherwise I can hunt one down on eBay.

Otherwise, yep I could sneak a trimpot in there somewhere too. Parity should theoretically decrease performance since it’s more overhead for the chipset to calculate the parity bits, so for the purpose of testing I was hoping to ensure parity isn’t being used on either board. Perhaps RAM write to 1 ws. I would not have thought the difference so large. I checked the ram sticks and 2 of them out of 3 were EDO.

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The Mother Board

For reference, I’ve attached a manual and board layout if anyone wants to take a look. One of my cyrix 5x chips needed 3.

I’d rather not tear the sticker off to find out I’m a stickler for detailsbut I suppose I could drop the chip into to one of my device programmers and see if they can identify the chip using the device ID bits. Has anyone else experienced this? Thanks for the detailed reply! I bought these two boards from a Ukrainian eBay seller and after some minor repairs both are in tip-top shape.

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

I’d like to be sure it’s an even comparison I have never witnessed first hand or second all any improved benchmark results when using EDO on a PCI motherboard. Since I’d likely never need to use wli 4V option, I could always replace the relevant divider resistor to change the 4V selection to 3. If I remember correctly. Based on the 33MHz results there appears to be some real potential here! The LSe manual I have doesn’t explain m148 the individual CPU selection jumpers are, only where to put them for a particular processor.

Also, have you read this post? Dual Xeon X 4. I could probably epoxy an angled pin header right to the top of the clock generator to add third jumper.

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(PDF) M1487 Datasheet download

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.

The 3 jumpers to the right of the clock generator controls the FSB. This site hosts no abandonware. I’d be happy run some m487 demos.

I didn’t have time to save the results, but I hope to get back to it tomorrow since I’ll have alk house to myself for most of the day. This really limits its usefullness with an Am5x or Cyrix 5x Besides needing to add a 3rd clock speed jumper S2 m187 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.

This disclaimer is brought to you thanks to the BSA. The more I learn, the more I realize how much I don’t know.

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?

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