sliderider wrote:

This one looks like it has burnt pins. I wouldn't put much faith in it's functionality.

That's just the interposer board though. He mentioned something about his lousy soldering skills. I'm sure the PGA Cyrix 5x86 that came with it is fine. I think that guy's chip came with a 5x86-100/4x though.

rgart wrote:

Hey Feipoa!! […]
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Hey Feipoa!!

I now have a new purchase.

whooo hooo 😜

Its difficult to see in the pic (second row first pin). But the evergreen board is missing a pin and I am unable to get the PC to boot when I use it along with the 133 CPU.

Really disappointed about that.

Happens to be the CLK MUL pin.

Feipoa believes this pin has possibly been removed deliberately but I'm not so sure.

No matter what jumper settings I change on the evergreen board I cant get a post or anything....No beeps. Just nothing.

I've tried setting the jumper to OD or Normal too.

So I have set the voltage trimmer to 3.6 volts exactly and Im using the CPU without the evergreen board.

Feipoa is it your bios update that cycles through bios colours automatically? It's a nice touch.

Cache timings are at there fastest.

PCI CLCK Divider 1:1

FP_FAST, RSTK_EN and BTB_EN = on
LSSER=off

Feipoa is it your bios update that cycles through bios colours automatically? It's a nice touch.

Never seen that happen on any of my boards. Try using the other pre-flashed BIOS chips for this v2012 Biostar.

If you are using EDO memory at some point, I think you first should start out ta 4-2-2-2 before testing 3-1-1-1. Have you tested both of these with EDO memory? It's on my list, but I haven't gotten aroudn to it yet.

Step 0, Rev 5. It seems like this is the latest version for this chip. It would be interesting to see if any of the IBM 5x86c chips which came out in 1997 or 1998 had a later revision/stepping.

EDIT: For EDO RAM, 4-2-2-2 vs. 3-1-1-1 showed no speed difference in cachechk. I'm not really sure what it is for, but it is disabled by default, so perhaps the function was never implemented.

I haven't tried EDO ram. Im just using 1 x 64MB simm of Fast Page Memory.

Are you using EDO? Is that why your benchmarks seem to have better results with memory bandwidth?

No, I'm not using EDO RAM. Which particular CPU, system, and configurations are you comparing? If you are comparing 4x33 vs. 2x66, then the later will naturally have faster memory bandwidth. Also, you are probably using different Cyrix bit settings as well.