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resman
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resman
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Today,
04:22 PM
resman
replied to a thread
Compaq 386/20e memory questions
in
Later PCs
Aside from the obvious differences, they seem to behave identically. They each provide 4 MB of memory as far as my 386/20e is concerned.
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9 replies | 403 view(s)
Yesterday,
05:01 AM
T-R-A
replied to a thread
GoldCap capacitor 1F vs coin battery ???
in
Later PCs
The principle he's using is based on "supercaps", a method used to power devices for generally short intervals (such as a brief power failure): ...
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17 replies | 182 view(s)
March 6th, 2021,
06:49 PM
T-R-A
replied to a thread
My IBM 300PL and what Upgrades I should do to it?
in
Pentium (First generation)
If it'll work, anything higher would be an improvement, of course. But again, if you're doing anything other than basic gaming, you're going to be...
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6 replies | 332 view(s)
March 5th, 2021,
01:49 AM
T-R-A
replied to a thread
Floppy Drive Acting Strange
in
Later PCs
PS/2 floppy drives are notorious for going bad. If you're certain both disks are good, searching "PS/2 floppy drive repair" should bring back a ton...
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4 replies | 92 view(s)
March 5th, 2021,
01:43 AM
T-R-A
replied to a thread
Toshiba Satellite Pro 420CDT high-pitched whining noise - What could it be?
in
Pentium (First generation)
Agreed. Most of them have a small coil which is subject to "squealing" with age.
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5 replies | 71 view(s)
March 1st, 2021,
04:34 PM
T-R-A
replied to a thread
Compaq Portable 1 adventures: testing and repairs
in
PCs and Clones
Nice save, but make sure to inspect the P/S thoroughly. Early Compaq portables have a tendency to have a quick and often fatal death at that point....
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11 replies | 226 view(s)
February 26th, 2021,
12:26 PM
T-R-A
replied to a thread
PCjr Monitor Question
in
PCs and Clones
Agreed. For most CGA monitors that I've seen, it actually looks pretty decent.
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31 replies | 519 view(s)
February 26th, 2021,
10:42 AM
T-R-A
replied to a thread
IBM 5150 Parity Error
in
PCs and Clones
That depends upon what materials you're talking about. The raw PWB's themselves are far more junky now, and many types of discrete semiconductors...
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13 replies | 271 view(s)
February 24th, 2021,
11:29 AM
resman
replied to a thread
Wanted: Compaq Portable 3 Hard Drive
in
Vintage Computer Items Wanted
I use OnTrack Disk Manager with my Portable 386 to use a larger and unsupported BIOS type disk (a DOM, actually)
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7 replies | 129 view(s)
February 23rd, 2021,
03:55 PM
T-R-A
replied to a thread
mouse for an IBM XT
in
PCs and Clones
Mice were far less necessary during the first half-decade after the introduction of the IBM PC. AFAIR, Microsoft tried to spur interest by offering...
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8 replies | 198 view(s)
February 22nd, 2021,
05:50 PM
T-R-A
replied to a thread
mouse for an IBM XT
in
PCs and Clones
http://www.mcamafia.de/mycomp/mycomp06.htm Microsoft Bus mouse was likely the most common one in the XT's heyday. ...
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8 replies | 198 view(s)
February 21st, 2021,
09:15 AM
T-R-A
replied to a thread
Best way to shrink my collection
in
PCs and Clones
Personally, I'd suggest #2. Yes, it's a PITA, but you're more likely to find someone who'd take care of the machine. Most decent bidders on there...
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6 replies | 259 view(s)
February 21st, 2021,
09:09 AM
T-R-A
replied to a thread
Install a CDROM in IBM PS/1 Consultant Win 3.1
in
Later PCs
If you mean the CR-563-B series, then an IDE cable may work, but the interface card has to be the proprietary Soundblaster card. It looks like a...
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8 replies | 284 view(s)
February 21st, 2021,
08:32 AM
T-R-A
replied to a thread
Proper Linux for Compaq Proliant 2500
in
Pentium (First generation)
You'll be hard-pressed to find anything "recent" that'll run on it, since (sadly), Linux kernels have gone the way of Windows insofar as hardware...
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9 replies | 334 view(s)
February 17th, 2021,
11:56 AM
T-R-A
replied to a thread
PCjr Monitor Color Convergence Adjustments
in
PCs and Clones
Sure it doesn't (or didn't at first) just need(ed) degaussing?
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4 replies | 117 view(s)
February 14th, 2021,
04:31 AM
T-R-A
replied to a thread
Retreive data from c1993 Compaq Lite 4/33c hard drive
in
Later PCs
Yep. Most USB to IDE drive adapters don't interpret the CHS geometry properly, and even if the drive were somehow "recognized", there's a high...
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22 replies | 672 view(s)
February 14th, 2021,
03:05 AM
T-R-A
replied to a thread
PS/2 Model 25 fan wiring
in
PCs and Clones
Could be (for some strange reason) that the GND to -12V connection can drive more current or to take load off of the +12 to GND connection. For...
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1 replies | 78 view(s)
February 12th, 2021,
03:25 AM
T-R-A
replied to a thread
Retreive data from c1993 Compaq Lite 4/33c hard drive
in
Later PCs
Stick with a DOS/Win9X based retrieval method. You'll have far fewer problems that way. As GiGaBiTe mentions, a "tweener" system is the best way. ...
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22 replies | 672 view(s)
February 7th, 2021,
05:02 PM
T-R-A
replied to a thread
Gateway 2000 486-33 "slimline" service manuals
in
Later PCs
If you attempt to install the AMD CPU without dropping the core voltage, you'll destroy it almost instantaneously.
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5 replies | 221 view(s)
February 6th, 2021,
09:07 AM
T-R-A
replied to a thread
Gateway 2000 486-33 "slimline" service manuals
in
Later PCs
2 problems: 1. The SX25 in the machine may or may not be a surface-mount CPU (QFP). If so, that's going to make replacement impossible unless...
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5 replies | 221 view(s)
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