A different question for "Old Comm Guy" about that quote for G4 PCI "YIKES" machines, mine has only 5 led's, but do fit the lighting sequence listed.

My G4 400 Mhz PCI "YIKES" machine has only 5 led's, none in DS4 or DS5, nothing there but the un-molested sodlier bumps (never has anything been there), and my lighting sequences are 7 & 8 are on together, the others are dependant upon keystrokes or other demands (mouse, etc.).
There are seven diagnostic LEDs on the Power Mac G4 (PCI Graphics) logic board.
DS1 = ATA drive activity
DS4 and DS5 = USB power for downstream devices  (There is no DS2 or DS3 on the board.)
DS6 = Ultra ATA bus activity
DS7 & DS8 = Power Indication
In a working unit, these LEDs should be in sync with each other: both on or both off. If one LED is on and the other is off, there is a problem.
DS9 = CPU Bus
Now I have a problem that started when I opened the side to check the led's in operation, side was open for 6 or 7 minutes and I got the screen of death, darkened, need restart, multi languages. ....  I had just cured the start-up problems I was having for a month, 10 days ago. It was the powered USB hub plugged into the machines back panel, instead of the K/B port, I did have the mouse to the K/B and hub to back of machine, swapped locations and it was fixed, even the dead printer came to life and began printing (hadn't worked for 10 months !!)
What cuased the "screen of death" was traced to a memory dimm / ram stick that died, a PC133, 256MB made by 16X8 (or XB), I swear I wasn't dragging chains over the M/B, or anything really stupid, (I ain't the sharpest knife in the drawer, but not dumb either).
The "death screen" has caued a big headache, very hard to get to Applejack, open firmware, ect., I have, but not with any consistancy, did them, did DU test & verify, all passed "GOOD" or "no problems", all this was done in "safe boot mode", but I can't get to "regular mode" after restart !! ...  it just sits on the gray apple screen w/o the spinning gear / wheel for hours !!!
Any ideas would be nice to hear, I plan on doing a re-install or repair / restore from / with the install DVD tomorrow.
And a link to info. of which ram / dimm memory sticks I might use from the other machines I have here, a G3 B&W, G4 QS 800 DP, etc. what will interchange ?, if any ?  ...........  Thanks for any input you may have, ..... wayne146 .....
I need some sleep, this has given me a massive headache, all because I read that quote and knew my lights didn't quite match it. ..... If only I had not cared, I migth not have gotten in such a bind / blunder, stupid me, I could resist it, I had to look for a compairison.
signing off for a few hours ....... wayne146 ..........

Good Morning, old comm guy,
Well I tried following your instructions to the letter, as best my limited knowledge would take me.
I opened the "terminal window", then "terminal preferences", the proper radio button was already checked for the phrase you indicated, and the insert line / window had "/bin/bash/", grayed out in it, below that is the "declare  terminal type"  that was set to "xterm color", so I couldn't change the grayed out window, but I could make selections for "declare. term. type"  ... I left that as it was at "xterm color".
In the bottom of the Term. Pref. window is a "Open a saved term. file ...." and a window to enter a selection, when I clicked on "select", it open a "finder window" ,<applications> with almost everything grayed out, not knowing what to do, I backed out of the finder window, and also I can't just type a command into the "open a saved term. file" window, it must be done with the select button. 
So basically I'm saying this Unix stuff is all Greek to me, I would need more detailed instructions to follow to the letter, for me to get through this with any success.
And this is weird, while I was working in Yahoo mail and here in discussions I was in "Safe Boot" for several hours, with several restarts in "Safe" (the only way I could do anything) I was swapping and checking a few different RAM sticks with the diagnostics in "about this mac" (one had died when watching the led's). the one that died, return to the living & working world, ??????? .....  and this G4 400mhz "YIKES" machine, STARTED FUNCTIONING PROPERLY AGAIN (?????????????) SHUTDOWN W/ K/B BUTTON, RESTART W/ K/B BUTTON, So weird !!!
And anther bit of weirdness is that while the Apple Tech. info says this uses PC 100 sdram, every stick of memory in this machine has stickers on them from different makers saying that they are PC 133 sdram of 256 mb. ??? ..... Can this be true ?, has this thing altered itself or altered the RAM, to work with each other ???
After it started working "properly" (?), both Firefox and Safari crashed many times and often, so I dumped Firefox (3.6.19) and reloaded a fresh FF 3.6.19, as I may have done something to them by accident in my panicing and buggering around, even had a Screen of Death 1 or 2 times, and it restarted with only a push of the front reset button, restarted as if it was just turned on with no problems lurking in it's past. .... Also weird !!! ????? 
The New FireFox (3.6.19) hasn't crashed since the new install, that maybe OK now, time will tell,  ........ wonder if the wrong ram was causing browsers to crash ???? ... or is the ram wrong ??... why is it working ???
All the Ram stick were bought from "Chris", the Apple Expert @ RE - PC, here in Seattle, he also sold me this YIKES machine, so there was no mistake as to what I wanted the RAM for.
I have a spare G3 B/W 450Mhz machine that also has pc 133 sdram in it as well, same thing with it, bought from "Chris", and the Ram in it too. It only has OS 9.2.2 on it, I need to do the work around to put Tiger 10.4.11 on it. Later .......
Well what do you think ??? ..... It's alot to process, take your time,
Please review this babbling I have put forth, it could be written a little clearer, but I have read it over twice and it makes sense as I read it (of course, I know what I meant when I typed it)......
.........Thanks for your time and help. ........wayne146 ....... (all nighter again, going for a nap, back in 4 - 5 hrs.) ...............wayne146 ........

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