My B&W PS has reached its last milliwatt. It does not want to supply power for more than a few minutes. I want to swap it out for an ATX supply, with more wattage.
I know there are PS connector differences, searching the net, I find a number of xclr8 your mac articles about G3 B&W and G4 PS swaps but I am confused by the info provided. One article implies that pin 8 (PG on ATX, +3v on G4 AGP/PCI Mobo (sawtooth) and maybe on B&W is not a worry. Pin 18, grnd on mac, +5V on ATX is the worry. I am worried about the pin out period.
Can someone pint me towards or fill me in on what the real wiring is on the B*W G3 motherboard? Is it the same as the Sawtooth? Or point me to a service manual (user and tech manuals don't seem to cover this) thanks! bob
Hei Bob
You can get these tech manuals from me. Just send me a note with a valid =
return address. Send mail to <mac-man_NOSP@redacted.invalid_stofanet.dk> remove NOSPM =
to activate the address.
- And one question. - Have you checked the fuse - both the one at the=20 back at the buttom of the cabinet and the one located on the PS itself?=20
- These two fuses sometimes can corrodate, so they switch off after some =
minutes...
Cheers, Erik Richard
bob wrote:
My B&W PS has reached its last milliwatt. It does not want to supply power for more than a few minutes. I want to swap it out for an ATX supply, with more wattage. =20 I know there are PS connector differences, searching the net, I find a =
number of xclr8 your mac articles about G3 B&W and G4 PS swaps but I am= =20 confused by the info provided. One article implies that pin 8 (PG on=20 ATX, +3v on G4 AGP/PCI Mobo (sawtooth) and maybe on B&W is not a worry.= =20 Pin 18, grnd on mac, +5V on ATX is the worry. I am worried about the pi= n=20 out period. =20 Can someone pint me towards or fill me in on what the real wiring is on= =20 the B*W G3 motherboard? Is it the same as the Sawtooth? Or point me to = a=20 service manual (user and tech manuals don't seem to cover this) thanks! bob
--=20
Rgds. Gr=C3=BC=C3=9Fe, Mvh. Erik Richard S=C3=B8rensen, Member of ADC
<mac-man_NOSP@redacted.invalid_stofanet.dk> <http://www.nisus.com>
NisusWriter - The Future In Multilingual Textprocessing
Erik Richard S=C3=B8rensen wrote:
Hei Bob =20 You can get these tech manuals from me. Just send me a note with a vali= d=20 return address. Send mail to <mac-man_NOSP@redacted.invalid_stofanet.dk> remove _NOSPM= _=20 to activate the address. =20
- And one question. - Have you checked the fuse - both the one at the=20 back at the buttom of the cabinet and the one located on the PS itself?= =20
- These two fuses sometimes can corrodate, so they switch off after som= e=20 minutes... =20 Cheers, Erik Richard =20 Erik, Thanks, I did check the whole machine, the 200 watt supply was a little=20 but under what was needed for the memory 1GB, 1GHZ G4 Cpu, with much=20 cache, 4 disk drives, DVD burner, and option cards. The original supply=20 just got tired. I have been slowly and carefully replacing it with a=20 550Watt supply - plenty of reserve power I will never use - but before I =
test to see if the magic smoke comes out, I want to make sure the wiring =
is correct. bob