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| PowerBook 1400 - not booting |
Posted by: AlpineRaven on 2026-03-08 17:07:22
A few years ago (about 7-8 years ago) I was given a box with about 7 Powerbook 1400s half of it was either damaged or in pieces. I managed to get 7 into 5 working units. I believe I sold 2 off - I can't quite remember - among to the ones I sold I know I sold 133mhz and 117mhz as well.
Anyway I had "left over ones" and I am trying to get them working again, 2 of them are unknown CPU types.
I have tried using 117mhz and 166mhz on those logicboards - it will not power on, It will power on with G3 upgrade card in those.
I am trying to understand why it won't boot 117mhz or 166mhz - is it because its 133mhz model? The 117mhz & 166mhz is confirmed working in other one no problems.
I was hoped to sell those 2 PowerBook 1400s off but its going nowhere at this stage.
Cheers
AP |
Posted by: croissantking on 2026-03-09 00:33:56
The 166MHz card will only work on logic boards with the newer ROM version, but the 117MHz should work in any. I’d suspect bad contact - try Deoxit |
Posted by: Snial on 2026-03-09 02:54:24
<snip> 7 Powerbook 1400s half of which were either damaged or in pieces. I managed to get 7 into 5 working units. I believe I sold 2 off <snip> This is much like my PB1400 story. I bought a PB1400cs/117/16 in late 2022.
It was originally in a fairly sad state: no FD nor CD-ROM, original & cranky HD 750 running System 7.5. I cloned the HD to an 8GB µSD card (+adapter), then gradually brought it back from decrepitness via my ZIP Drive (which had a disk with a boot driver); which enabled me to find the ZIP disk with the proper driver; which enabled me to find the PowerCD driver; which enabled me to install my proper Mac OS 8 CD & upgrade to Mac OS 8.1.
After a while I bought another broken PB1400, which turned out not to be so broken
<snip> it won't boot 117mhz or 166mhz - is it because its 133mhz model? <snip> Later I bought a 16MB upgrade, but it came with a free 166MHz CPU!
It turned out that my original PB1400cs/117 Motherboard had the later ROM which could take the 166MHz CPU and the PB1400c Motherboard which came with a 133MHz CPU had the earlier motherboard that could only take a 117 or 133MHz CPU. So, I had to dismantle both to upgrade to 166MHz. |
Posted by: bibilit on 2026-03-09 04:46:12
IIRC some Logic boards can only work with the appropriate CPU |
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