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180MHz 603ev CPU upgrade for 5300ce?
Posted by: croissantking on 2026-05-08 10:25:11
According to a PDF entitled 'Apple ROM Matrix', there is a listing for a ROM with checksum 852CFBDF for 'PowerBook 5300 and Assistive Technology Freestyle'
Posted by: joevt on 2026-05-08 15:20:37
According to a PDF entitled 'Apple ROM Matrix', there is a listing for a ROM with checksum 852CFBDF for 'PowerBook 5300 and Assistive Technology Freestyle'
Don't got it. It's listed in the MacROMan GitHub repository but is not included in that repository's TestImages folder.
Posted by: adespoton on 2026-05-27 12:19:49
Oddly, https://docs.google.com/spreadsheets/d/1wB2HnysPp63fezUzfgpk0JX_b7bXvmAg6-Dk7QDyKPY/ has it (which makes sense, since it and MacROMan track each other), but it includes details that imply that I had the ROM at some point to validate -- but if that were the case, it should be in TestImages.

I'm curious if the PDF is just a printout of my spreadsheet of the same name?
Posted by: croissantking on 2026-05-27 13:29:57
Oddly, https://docs.google.com/spreadsheets/d/1wB2HnysPp63fezUzfgpk0JX_b7bXvmAg6-Dk7QDyKPY/ has it (which makes sense, since it and MacROMan track each other), but it includes details that imply that I had the ROM at some point to validate -- but if that were the case, it should be in TestImages.

I'm curious if the PDF is just a printout of my spreadsheet of the same name?

FYI This list is missing the PB1400 166MHz ROM... in case you're able to request an update.
Posted by: adespoton on 2026-05-27 13:34:58
FYI This list is missing the PB1400 166MHz ROM... in case you're able to request an update.
Ah; I had that in my "to do" list, but never got around to it. I seem to recall joevt and I both updating our MacROMan forks for that one, but I missed adding it to the sheet.
Posted by: joevt on 2026-05-27 14:11:17
If they're not available then I'll dump mine (I don't have a complete 5300, but I do have a logic board).
I would like a copy of that dump when you get around to it. Or maybe someone with a complete 5300 can do it.
Posted by: adespoton on 2026-05-27 15:27:35
PB1400 166 dump added to the sheet now. I'm also looking forward to the 5300 dump 🙂
Posted by: croissantking on 2026-05-27 15:51:39
I would like a copy of that dump when you get around to it. Or maybe someone with a complete 5300 can do it.

Oh yes, haven't forgotten. The thing is, I'm out of town. If a PB5300 user hasn't done it by the weekend after next, I'll get on it.

PB1400 166 dump added to the sheet now. I'm also looking forward to the 5300 dump 🙂

Excellent. Some additional data for the 1400/166:

-The CPU is a 603ev
- It supports 8-64MB (this applies to the early 1400 ROM as well).
- We're assuming it will boot Mac OS 7.5.2 but I'm not sure if that's been confirmed. I suppose there's no real reason it shouldn't.

n.b. There's a bit of a misconception floating around about some models only supporting up to 56MB, but IMHO it's a misunderstanding of a technical issue.
Posted by: Trash80toHP_Mini on 2026-05-27 16:48:19
Might the 5300ce be using the 1400 ROM to support its 800x600 panel?
Posted by: croissantking on 2026-05-27 16:57:38
Might the 5300ce be using the 1400 ROM to support its 800x600 panel?

Nah there's just one ROM between all the models.
Posted by: Trash80toHP_Mini on 2026-05-27 17:18:02
That's what I'd figured, but thought to ask. Thanks!
Posted by: CC_333 on 2026-05-27 18:35:20
I have a 5300ce (the fancy model with the 800x600 display and 117 MHz CPU), but someone must have replaced the LCD with one from a standard 5300c before I got it, because it only displays at 640x480.

c
Posted by: croissantking on 2026-05-27 18:41:44
I have a 5300ce (the fancy model with the 800x600 display and 117 MHz CPU), but someone must have replaced the LCD with one from a standard 5300c before I got it, because it only displays at 640x480.

c
So it's an overclocked 5300c then 😛
Posted by: CC_333 on 2026-05-27 23:55:36
So it's an overclocked 5300c then 😛
Basically, yeah.

It does have the "5300ce" badge, however, so it apparently is a genuine 5300ce, aside from the display.

c
Posted by: Trash80toHP_Mini on 2026-06-01 11:27:52
The resolution bump is considerable in the ce, fine also for the larger 1400 display, but a pathetically low resolution by the time of the 3400/TAM era. 1024x768 should have been available well before WallStreet, even if in a 3400/Kanga sized panel.
Posted by: CC_333 on 2026-06-01 15:33:11
I haven't the foggiest clue what LCD panel I should look for to restore my PB5300's ce-ness.

And even if I did, I somehow doubt I'd be able to afford it in this day and age (sometimes I wish the social media influencers hadn't discovered old Macs! The prices have nearly tripled in the years since they did!)

c
Posted by: croissantking on 2026-06-01 15:34:09
I haven't the foggiest clue what LCD panel I should look for to restore my PB5300's ce-ness.

And even if I did, I somehow doubt I'd be able to afford it in this day and age (sometimes I wish the social media influencers hadn't discovered old Macs! The prices have nearly tripled in the years since they did!)

c
You'd still need the correct display flex cable and that's not going to be easy to come by.
Posted by: CC_333 on 2026-06-01 15:39:12
You'd still need the correct display flex cable and that's not going to be easy to come by.
The c and ce used different cables?

I knew the cs, being passive matrix, used a different cable than the active matrix panels, but I didn't think the different res active matrix panels did, though I'm not surprised.

Probably my best chance of acquiring both the ce panel and matching cable would be from a parts unit.

c
Posted by: croissantking on 2026-06-01 16:15:26
The c and ce used different cables?
Affirmative.
Posted by: CC_333 on 2026-06-01 16:57:13
Affirmative.
Huh. OK.

As I said in my last post, it didn't occur to me that they might use different cables, but I'm not surprised that they do.

Oh, well. It's not a big deal, really. I don't use that machine much anyway. The last time I remember powering it up was at least 10 years ago, maybe longer (it's been so long, I fear it likely doesn't work anymore).

c
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