Fujitsu ergopro x450 - P 100 Mhz
Status:Still have itnot working currently
Name:Fujitsu ergopro x450 - P 100 Mhz
Memory:4x4meg 72 pin sim
Monitor/rez:mach64 onboard controller (1meg)
Drives:
3.5'' 1.44 MB floppy
270 meg quantum maveric
CPU:Pentium 100 mhz with k6 cooling sink and fan
Secondary cache:none
OS:Msdos 6.22 + peanut linux 8.2
Extras: on board soundblaster pro compatable unit
Comments:
oh boy this will be an essay.
This box started out as a "spareparts" idea for the p133. i was given it for that purpose at least. It had been "mouse attacked" *lol* no..not computer mice. Real honest to god furry mice! They had crawled in through the back, nested inside, defecated and urinated all over the motherboard, and generally done mousy, non good for puter stuff.
I will admit to falling for the temptation of trying to revive a box no one said could be revived. NOTE they said CANNOT be done..they didn't say "cannot be done at reasonable cost".
So take out drive bay holder..sandpaper it clean then use alcohol for that last touch, ditto with cd-rom holder.
Gently turn the box upside down, shake out loose mouse droppings, remove the motherboard from the chassis, use a paintbrush (small and soft) to brush the rest away, then blow it clean with compressed air.
Now comes the nasty parts:
i know mice, i've had rodents as pets (ok, i had gerbils but i've handled mice when i had a pet snake). One thing they had in common was, sticky and corrosive (acidic? or alkaline?) urine. Now normally that'd be a "so what" fact, but on a motherboard???
In a high light environment (equivalent of 4x75watts of lightbulbs). I went over the motherboard, first with the naked eye, and a Q-tip with alcohol, looking for "shiny spots" that indicated urination spots(mark these spots mentally), soaking those in alcohol and cleaning them off, then the really "tough" spots got paper tissue soaked in alcohol and a good 5 minutes "soak" then the Q-tip again.
Then go over the board with a magnifying glas and then with a loupe. Looking for tarnished spots where you found urination, looking for bare copper where the motherboard can have been scratched, chewed wires so forth.
I found 3 spots that were tarnished. i fixed these by a mix of soldering and in some cases electrically conductive laquer
i found that the laquer was worthless in the normal diluted form, it gave me too little control of where it went, so i turned the vial upside down, let the thick stuff accumulate in the bottom (really the top..the cap), and then gently applied it with a brush and needle (using a loupe too) and then let it dry. After that i gently "scratched" a path clean between the legs of the IC where the laquer had joined (to avoid short circuit between the ic chips that scratching was needed) and then i just tested and sprayed it with pcb laquer
When i re read that above it looks simple? it took (cleaning and finding spots
to fix and fixing them) 12 hours!!!, of which one can concentrate (well i can) mebbe 2 hours on the level needed..then your hands start to shake and your eyes go haywire on ya
Tips n Trix:
one word..if mice have pee'd on ya motherboard...DON*T try to revive it!!!
as a one time project it was fun, but ...it was a BITCH
TOOLS:
HW:
compressed air
2 paint brushes (really really really small ones)
electrically conductive laquer
"scratch" needle(looks like a dentist pointy sharp thingy)
soldering iron
soldering tin
stripped small electrical cable (rk) "one strand"
PCB laquer
alcohol
see comments for the how-to
SW:
hwdiags
snooper
dos6.22 customized and techw0rm boot disks
fujitsu bios upgrade
links
Service manual:
if you telnet to wlofie.dyndns.org (w0nderer'z delight BBS) and register, then download either via ftp or Z,X or Y modem protocols at wlofie.dyndns.org (w0nderer'z delight FTP)
it's in the misc folder/directory
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