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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.

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.

This site hosts no abandonware. I’m also adding the manual in case someone stumbles over this thread in the future and needs it.

M1487 B1 M1489 A1 M1451A1 M1431 A2

You do not have the required permissions to view the files attached to this post. Last edited by FesterBlatz on For reference, I’ve attached a manual and board layout if anyone wants to take a look. Also, have you read this post?

Faster than SiS all well. Based on the 33MHz results there appears to be some real potential here!

I checked the ram sticks and 2 of them out of 3 were EDO. I have never witnessed first hand or second hand any improved benchmark results when xli EDO on a PCI motherboard.

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. Return to General Old Hardware. I could probably epoxy an angled pin header right to the top of the clock generator to add third jumper.


The more I learn, the more I realize how much I don’t know.

The Mother Board

I can’t find any datasheets for it. One thing to note: Then I put sticks fromm and in the machine assuming that they are FPM memory but I’m getting the same results as before. Since I’d likely never need to use the 4V option, I could always replace the relevant divider resistor to change the 4V selection wli 3. The LSe manual I have doesn’t explain what the individual CPU selection jumpers are, only where to put them for a particular processor.

And stick with K cache. The one above to the left of the clock generator controls the PCI divider. I also have reason to suspect this is the clock generator for the SMT Terminator.

I’m looking forward to your test results of EDO vs. I’d like to be sure it’s an even comparison If you don’t m11487 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.

PC Chipsets documentation: ALi

Ideally, I would like to run a more thorough comparison and update this thread, viewtopic. Board index All times are UTC. Aki 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.

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. Users browsing this forum: Lai had K of cache installed, which can sometimes influence what fastest cache timings are stable.


Perhaps RAM write to 1 ws. 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’d be happy run some time demos. I bought these two boards from a Ukrainian eBay seller and after some minor repairs both are in tip-top shape.

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.

When looking at the manual, do you see what I mean about lack of any detail regarding multipliers?

Has anyone else experienced this? One of my cyrix 5x chips needed 3. I didn’t have time to save the results, but I hope to get back to it tomorrow since I’ll have the house to myself for most of the alu. Otherwise, yep I could sneak a trimpot in there somewhere too. Dual Xeon X 4. 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 alu account for such a dramatic difference?

The Mother Board • View topic – I need some help with a m-b

That is the case with SiS boards anyway. Others will run well at 3. I’d use a trimmer rather m11487 a fixed resistor if you’re testing for an IBM 5x