Yellowknife.

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Yellowknife.

I've been gone for a while. So, hello and stuff.

So I have a Yellowknife. Any ideas on getting it running? I switched in my beige G3 processor and power module, but I got nothing. Anyone got ANY info on these?

madmax_2069's picture
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hummm ive looked (AKA google)

hummm ive looked (AKA google) and only found this here

everymac dont have info on it (that i see) im trying mactracker

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This probably isn't it but in

This probably isn't it but in the picture i don't see a PS.

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Haha, I know, but I just reme

EDIT: Ok, I think i found something... looking through that document linked above (thanks BTW), I found the Freescale website (Motorola's old semiconductor company? It dosen't matter). When searching the site for Yellowknife, I found a user's manual!

http://www.freescale.com/files/archives/doc/ref_manual/YELLOWKNIFEX4UM.pdf?srch=1

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Hooked it all up, did as the

Hooked it all up, did as the book said. I put in 32MB of PC100 RAM, what it says it shipped with. I think my VRM is bad, because all that happens is the power light come son, the fan in the PS spins up (sort of), and the keyboard lights stay on. Sad

Also, there are 5 LEDs on the mainboard. Run, Cache, PCI, Disk, and ISA. Only the Cache light comes on.

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Question:

is there a Bus/CPU/PCI multiplier? and do you have it set correctly?

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First I had it set for 66 bus

First I had it set for 66 bus/233 cpu/33 pcii (the way the board came to me), that didn't work, so I changed it to 100/200/33 (one of the two settings that was bold iin the instruction manual). I also tried 83/200/33, the other bold one, and no go. Seems like the VRM is dead though (better be, hope the board isn't gone Sad )

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why dont u try the vrm from u

why dont u try the vrm from ur beige g3?

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I (at least think) i swapped

I (at least think) i swapped them out years ago, but it still dosen't work, so I was going to try a different one (beige G3 is long gone).

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Are you sure that It can run

Are you sure that It can run a PPC750 (Aka G3)?

From what I recall about those boards they only came with a PPC 604e. I don't think Apple ever packed a PPC604e on a zif, but I know IBM did on several of the RS/6000 systems. The 43p Model 150 immediately comes to mind.

Also I believe that it also requires EDO ram. Best thing to do is read the manual to the board.

--Edit after looking at the manual it looks like I was wrong on both accounts. I must be confusing it with an eariler board.

madmax_2069's picture
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if it was a 604e cpu it would

if it was a 604e cpu it wouldn't be a zif slot then all the 604e cpu's was in card form not a zif socket. the beige G3 was the one that started the zif socket. those 2 black slots are isa slots

all the G3 clones that i seen either was in zif form or on a G3 on a card plugged into CPU's slot and with a zif socket on the card or soldered on the card. and the last time i seen a 604e Mac they didnt have a vrm

Jon
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ISTR the CPU in the 7248 that

ISTR the CPU in the 7248 that I used to have (and has been 3rd handed to ax0n now) had a socketed 604 CPU. I don't remember a VRM, but it's been years since I've been inside that case. I know it took 72-pin SIMMs, but I don't recall if it took EDO. I'm also not sure how much is applicable being PReP and not CHRP.

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i think the problem is the wr

i think the problem is the wrong type of ram.like most of the older Mac's and Mac clones used a dimm 5v stick, wile the Beige G3 used a dimm 3.x volt stick. and the 2 different sticks are incompatible with each other. if you put a pc66-pc100 in that, that could be why its not working. if you have old dimm 5 volt sticks try it in that and it might work who knows its just a thought

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is the voltage regulator right?

I seem to recall that there were two types of them...

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Thank you, all interesting th

Thank you, all interesting thoughts. I don't know if the VRM is right, it's a Raytheon model, RCB010 for PowerPC. I don't recall having any 5 volt RAM, would the RAM froma 9500 be the same (I just happen to have a prototype of one of those lying around as well Wink )? Unfortunately I got out of the Mac scene just as the G3s hit the market, so my forte is older models, not this Sad

It definitely is a basic problem though, it dosen't even get past basic POST.

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Several disorganized thoughts

Several disorganized thoughts and notes:

There's someone here posting they were attempting do do a Linux port on a Yellowknife system - noting they're running a PPC750 (ie - a G3).

Also wondering if the system is set to output from open firmware to a serial terminal by default, a la Hawaii Cruiser's PowerExpress. Link to Extremely Long yet Interesting Thread: Here.

5V FPM dimms are notched differently than PC-66/100/133 dimms. You should not be able to fit one in the socket of the other.

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yea you can they are both dim

yea you can they are both dimm . same amount of pins i have a old P1 that takes the dimm 5v ram and i put a pc66 stick in there with no problem at all it went in easy and went out easy but it wouldn't work cause of the simple fact the power output to the dimm socket was to great for the PC66 to handle.

yea ram out of a 9500 should work. i would try PC66 cause it is on a 66mhz system but i would think. i think its required to have a VRM in-place to operate the G3 systems of that age. the vrm out of the Beige G3 should work fine in that. does it have a cuda button. if it does hold that sucker for 30 seconds. BTW is the pram battery ok. i see it has the box pram battery type

Jon
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Dude, check it: http://www.te

Dude, check it: http://www.tech-faq.com/dimm.shtml
Wink

Quote:
The earliest DIMM's were of the 168 contact variety. These DIMM's have come in a variety of configurations. It is possible to determine the configuration of the DIMM by examining the placement of notches on the bottom of the DIMM.

The different notches are there to keep one from placing a 3.3v DIMM in a 5v DIMM socket and burning something up. It's a physical way of making stuff not work. Hold a set of actual 5v DIMMs from a Power Mac next to a 3.3v PCxxx DIMM and note the notch placements. Then, hold them both next to a slot on a mobo, and you'll see that the things just won't physically fit unless they are modified, and then they just won't work because of the electrical differences that the notches are designed there to keep from happening...

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