silvestrons bits and bytes | Building a new memory expansion for my Compaq Portable 3! @silvestronsbitsandbytes | Uploaded November 2023 | Updated October 2024, 2 hours ago.
Going against that famous not-actually-a-Bill-Gates quote, 640K isn't enough for me, so today I'm building a modern reproduction of the Compaq Portable III's memory expansion board and maxing it out.
CP3 Expansion reproductions - github.com/raymondh2/CompaqPortableIII
This is part six in my video series on the Compaq Portable III
You can watch previous parts here:
Part one - youtube.com/watch?v=gBF2E-BSWJk
Part two - youtube.com/watch?v=5PtKBrIHVIg
Part three - youtube.com/watch?v=JdvOUJ0S5Wk
Part four - youtube.com/watch?v=Na_Oe3Pn_G4
Part five - youtube.com/watch?v=v09jCRxdxEc
If you like what I do and want to encourage more, I appreciate your support through likes and comments below. If you have the means, you could also support me on Patreon as money helps me buy broken things to fix and build more projects - patreon.com/silvervest
Bookmarks!
00:00:00 - Intro
00:01:05 - Parts
00:03:18 - Expansion backplane
00:11:25 - Memory expansion card
00:22:33 - All together, time for RAM
00:25:43 - Jumpers?
00:29:47 - Installation
00:31:47 - First boot
00:36:43 - Using extended memory
00:42:56 - Not so fast
00:45:16 - Conclusion
Any feedback is welcome, as always.
Links!
en.wikipedia.org/wiki/Compaq_Portable_III
oldcomputers.net/compaqiii.html
bourns.com/pdfs/DRAM.pdf
retro.timb.us/Systems/Compaq_Portable_III/CompaqProtable3.pdf
pcjs.org/software/pcx86/diag/compaq/1989
forum.vcfed.org/index.php?threads/compaq-portable-iii-how-to-get-640kb-of-base-ram.80462
en.wikipedia.org/wiki/SmartDrive
Credits!
Music:
* First Horizon - ELFL
* Low Fidelity Space Waves - ELFL
* Masaru Setsumaru - Data Select (from Sonic 3)
Font: Riciery Leal - VCR OSD Mono (dafont.com/vcr-osd-mono.font)
Putting up with my weird hobbies: My wife
Disclaimer!
I am NOT an expert, I have genuinely NO idea what I'm doing, and mostly just glue things together and use a lot of Google-fu until stuff works. I've been tinkering with electronics since I was a kid but have no formal training and will probably do things incorrectly. If you learn something from this, that's awesome, but trust me - I'm learning too!
#compaq #portable #expansion
Going against that famous not-actually-a-Bill-Gates quote, 640K isn't enough for me, so today I'm building a modern reproduction of the Compaq Portable III's memory expansion board and maxing it out.
CP3 Expansion reproductions - github.com/raymondh2/CompaqPortableIII
This is part six in my video series on the Compaq Portable III
You can watch previous parts here:
Part one - youtube.com/watch?v=gBF2E-BSWJk
Part two - youtube.com/watch?v=5PtKBrIHVIg
Part three - youtube.com/watch?v=JdvOUJ0S5Wk
Part four - youtube.com/watch?v=Na_Oe3Pn_G4
Part five - youtube.com/watch?v=v09jCRxdxEc
If you like what I do and want to encourage more, I appreciate your support through likes and comments below. If you have the means, you could also support me on Patreon as money helps me buy broken things to fix and build more projects - patreon.com/silvervest
Bookmarks!
00:00:00 - Intro
00:01:05 - Parts
00:03:18 - Expansion backplane
00:11:25 - Memory expansion card
00:22:33 - All together, time for RAM
00:25:43 - Jumpers?
00:29:47 - Installation
00:31:47 - First boot
00:36:43 - Using extended memory
00:42:56 - Not so fast
00:45:16 - Conclusion
Any feedback is welcome, as always.
Links!
en.wikipedia.org/wiki/Compaq_Portable_III
oldcomputers.net/compaqiii.html
bourns.com/pdfs/DRAM.pdf
retro.timb.us/Systems/Compaq_Portable_III/CompaqProtable3.pdf
pcjs.org/software/pcx86/diag/compaq/1989
forum.vcfed.org/index.php?threads/compaq-portable-iii-how-to-get-640kb-of-base-ram.80462
en.wikipedia.org/wiki/SmartDrive
Credits!
Music:
* First Horizon - ELFL
* Low Fidelity Space Waves - ELFL
* Masaru Setsumaru - Data Select (from Sonic 3)
Font: Riciery Leal - VCR OSD Mono (dafont.com/vcr-osd-mono.font)
Putting up with my weird hobbies: My wife
Disclaimer!
I am NOT an expert, I have genuinely NO idea what I'm doing, and mostly just glue things together and use a lot of Google-fu until stuff works. I've been tinkering with electronics since I was a kid but have no formal training and will probably do things incorrectly. If you learn something from this, that's awesome, but trust me - I'm learning too!
#compaq #portable #expansion
