ALI M1487 PDF

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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.

PC Chipsets documentation: ALi

Dual Xeon X 4. 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. This disclaimer is brought to you thanks to the BSA. I would not have thought the difference so large. I could probably epoxy an angled pin header right to the top of the clock generator to add third jumper. 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.

Board index All times are UTC. Sure enough the memory benchmarks dropped by a 1m487 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. Perhaps RAM write to 1 ws. Return to General Old Hardware.

One thing to note: I’m also adding the manual in 1m487 someone stumbles over this thread in the future and needs it. When looking at the manual, do you see what I mean about lack of any detail regarding multipliers? This site hosts no abandonware. Does anyone familiar with either of m14487 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? You do not have the required permissions to view the files attached to this post.

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One of my cyrix 5x chips needed 3. Also, have you read this post? The 3 jumpers to the right of the clock generator controls the FSB. 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 board.

Ideally, I would like to run a more thorough comparison and update this thread, viewtopic. I can’t find any datasheets for it.

The Mother Board

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. There is no material that is knowingly illegal here. I’d like to be sure it’s an even comparison Based on the 33MHz results there appears to be some real potential here!

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. Otherwise, yep I could sneak a trimpot in there somewhere too. 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. Has anyone else experienced this? And stick with K cache. I bought these two boards from a Ukrainian eBay seller and after some minor repairs both are in tip-top shape.

The more I learn, the more I realize how much I don’t know. I’d be happy run some time demos.

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

I checked the ram sticks and 2 of them out of 3 were EDO. This really limits its usefullness with an Am5x or Cyrix 5x Then I put sticks fromm and in the machine assuming that they are FPM memory but I’m getting the same results as before. The LSe manual I have doesn’t explain what the individual CPU selection jumpers are, only where to put them for a m1847 processor.

Last edited by FesterBlatz on I’m looking forward to your test results of EDO vs. 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’d use a trimmer rather than a fixed resistor if you’re testing for an IBM 5x I have never witnessed first hand or second hand any improved benchmark results when all EDO on a PCI motherboard.

For reference, I’ve attached a manual and board layout if anyone wants to take a look. This board isn’t as popular as the LS there’s barely any information available.

I had K of cache installed, which can sometimes influence what fastest cache timings are stable. If I remember correctly.

Faster than SiS as well. When I get some time tonight I’ll look closer and see if I can figure out which jumpers are for the multipliers.

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. Users browsing this forum:

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