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The more I learn, the more I realize how much I don’t know. This site hosts no abandonware. 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. Dual Xeon X 4. I’ll have to take a look at modbin, it would certainly be useful to have some control over parity since most alj my DRAM modules are bit. Users browsing this forum: There is no material that is knowingly illegal here.

PC Chipsets documentation: ALi

Otherwise, yep I could sneak a trimpot in there somewhere too. Perhaps RAM write to 1 ws. I can’t find any datasheets for it.

Thanks for the detailed reply!

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

For reference, I’ve attached a manual and board layout if anyone wants to take a look. The one above to the left of the clock generator controls the PCI divider. And stick with K cache. Faster than SiS as well. Others will run well at 3. Sure enough the memory benchmarks dropped by m487 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.


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. 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.

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. One of my cyrix 5x chips m14887 3. Has anyone else experienced this?

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

Ideally, I would like to run a more thorough comparison and update this thread, viewtopic. I’d like to be sure it’s an even comparison I checked the ram sticks and 2 of them out of 3 were EDO.

Also, have you read this post? The LSe manual I have doesn’t explain what the individual CPU selection jumpers are, only where to put them for a particular processor. This board isn’t as popular as the LS there’s barely any information available.


If I remember correctly. 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 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.

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? This disclaimer is brought to you thanks to the BSA.

When I get some time tonight I’ll look closer and see aali I can figure out which jumpers are for the multipliers. 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 did not bother to check mine with EDO. 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 qli.