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HMM for ThikPad PowerPC 820
Posted: Wed Jul 19, 2023 4:14 am
by karotlopj
Does anyone know where I might find a HMM for a PowerPC 820?
Re: HMM for ThikPad PowerPC 820
Posted: Wed Jul 19, 2023 4:24 am
by Bondi
Re: HMM for ThikPad PowerPC 820
Posted: Thu Jul 20, 2023 5:22 am
by Enig
Have not seen an hmm for the 820, but do remember seeing one for the 850
oh, remember where I found it:
http://www.ibmfiles.com/
They do seem to have some info and files on the 820, but no hmm
EDIT: Dunno if this can help your further search, but they list some option order IDs for the hmms (from the original hardware announcement):
http://www.ibmfiles.com/ibmfiles/powerp ... cement.pdf
IBM ThinkPad Power Series 820
Hardware Maintenance Manual S30H-2383
IBM ThinkPad Power Series 850
Hardware Maintenance Manual S30H-2388
Re: HMM for ThikPad PowerPC 820
Posted: Thu Jul 20, 2023 6:25 am
by Enig
Erhmm.. can't believe I didn't see that before.
If you jump over the Thinkdan's thread here:
https://forum.thinkpads.com/viewtopic.php?f=6&t=135334
look at the 4th image
..maybe he could share some scans or photos of it?
Re: HMM for ThikPad PowerPC 820
Posted: Thu Jul 20, 2023 7:18 am
by RealBlackStuff
Re: HMM for ThikPad PowerPC 820
Posted: Mon Jul 24, 2023 2:56 pm
by ThinkDan
Here it is, happy for it to be added to the forum's HMM page.
I scanned it as a 200dpi greyscale as the copy I have (ordered from IBM publications circa 1999) was supplied as a photocopy of an original. The diagrams looked awful on mono scanning.
Can do the 850 HMM also if required, although a scan of that already exists.
Re: HMM for ThikPad PowerPC 820
Posted: Mon Jul 24, 2023 9:19 pm
by fatkatsupra1
So if you are asking for the HMM does that mean you have one??
Post pictures!
Re: HMM for ThikPad PowerPC 820
Posted: Mon Jul 24, 2023 10:57 pm
by axur-delmeria
ThinkDan,
I would've scanned that photocopied book in grayscale mode at 300 dpi (or higher), run it through
ScanTailor Advanced for post-processing (page-splitting, deskewing, etc.), then convert it to PDF.
Re: HMM for ThikPad PowerPC 820
Posted: Tue Jul 25, 2023 1:50 am
by RealBlackStuff
Got your 820_HMM, thanks.
I just uploaded it, together with my own 850_HMM to the Forum.
You can find them under the HMM link as:
ThinkPad 820 Power Series
ThinkPad 850 Power Series
Re: HMM for ThikPad PowerPC 820
Posted: Tue Jul 25, 2023 8:01 am
by ThinkDan
axur-delmeria wrote: ↑Mon Jul 24, 2023 10:57 pm
ThinkDan,
I would've scanned that photocopied book in grayscale mode at 300 dpi (or higher), run it through
ScanTailor Advanced for post-processing (page-splitting, deskewing, etc.), then convert it to PDF.
Thanks, I'll have a look at that

Re: HMM for ThikPad PowerPC 820
Posted: Tue Jul 25, 2023 8:03 am
by ThinkDan
Thanks for the upload, RBS - happy to contribute.