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I’d like to be sure it’s an even comparison And stick with K cache. Also, have you read this post? This board isn’t as popular as the LS there’s barely any information available.

Otherwise, yep I could sneak a trimpot in there somewhere too. That is the case with SiS boards anyway. Based on the 33MHz results there appears to be some real potential here!

Parity should theoretically decrease performance since it’s more overhead for the chipset to calculate the parity bits, so for the purpose of sli I was hoping to m1847 parity isn’t being used on either board. Does anyone familiar with either of these boards have any comments or suggestions on m14887 particular settings I may need to adjust on either board that may account for such a dramatic difference?

Ideally, I would like to run qli more thorough comparison and update this thread, viewtopic. One of my cyrix 5x chips needed 3. I have never witnessed first hand or second hand any improved benchmark results when using EDO on a PCI motherboard. I’d use a trimmer rather alk a fixed resistor if you’re testing for an IBM 5x 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.

Others will run well at 3. I’d be happy run some time demos.


Board index All times are UTC. When I get some time tonight I’ll look closer and see if I can figure out which jumpers are for the multipliers. I checked the ram sticks and 2 of them out of 3 were EDO. The LSe manual I have doesn’t explain what the individual CPU selection jumpers are, only where to put them for a particular processor.

I bought these two boards from a Ukrainian eBay seller and after some minor repairs both are in tip-top shape. 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.

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

Users browsing this forum: Perhaps RAM write to 1 ws. I also have reason to suspect this xli the clock generator alk the SMT Terminator. The more I learn, the more I realize how much I don’t know. 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.

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

Am5X86-P75-S ALi m1489 ALi M1487 T65550 ISA Embedded industrial motherboard

Since I’d likely m14887 need to use the 4V option, I could always replace the relevant divider resistor to change the 4V selection to 3. The one aki to the left of the clock generator controls the PCI divider. If I remember correctly. I’m looking forward to your test results of EDO vs. I did not bother to check mine with EDO.

This site hosts no abandonware. For reference, I’ve attached a manual and board layout if anyone wants to take a look. 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.


You do not have the required permissions to view the files attached to this post. Thanks for the detailed reply! I can’t find any datasheets for it. There is no material that is knowingly illegal here. Return to General Old Hardware. Has anyone else experienced this? 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 day.

One thing to note: Dual Xeon X 4.

PC Chipsets documentation: ALi

Then I put sticks fromm and in the machine assuming that they are FPM memory but I’m getting the same results as before. I would not have thought the difference qli large. If 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. This really limits its usefullness with an Am5x or Cyrix 5x I’m also adding the manual in case someone stumbles over this thread in the future and needs it.

I had K of cache installed, which can sometimes influence all fastest cache timings are stable. This disclaimer is brought to you thanks to the BSA. 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 suspect the memory performance differences may be related to the fact that you are using EDO memory, which m1478 always means better performance in Last edited by FesterBlatz on