15 January 2008, 21:01 | #1 |
Amiga-Mad
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Drive rails
I know this isn't Amiga related but I will give it a go anyway since I know alot of huys here have alot of general computer knowledge
I was given two old 486 CPU based PC's this weekend for free which I inted to use for old DOS games, one of them is a Compaq Deskpro 466 and I want to stuff a cd-rom in to it's non occupied 5 1/4 inch holder but I seem to miss the drive rails, does anyone know what type that fits or is it some Compaq special made one's? Have attached a pic |
16 January 2008, 10:23 | #2 |
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IIRC that kind of Compaq has screw holes on one side and drive rails on the other.
Just screw the drive in on one side.. I always hated that generation of Compaq.. I mean come on, BIOS Setup partition?! Whoever thought it was a good idea to load BIOS Setup from the hard disk? |
16 January 2008, 15:58 | #3 | |
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16 January 2008, 20:07 | #4 |
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The drive rails are pretty common. They were also used on the Proliant server models (1500-7000). Unfortunately we got rid of all our Compaq stuff around 2000.
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16 January 2008, 21:17 | #5 |
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16 January 2008, 22:12 | #6 | |
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Think I saw that stuff when I browsed the drivers for this model at HP's website I'm pretty pleased with this machine for what I intend to use it for, it has a built in Cirrus Logic gfx chip and lots of room for expansion cards Last edited by AMIGAZ; 16 January 2008 at 22:34. |
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16 January 2008, 22:15 | #7 | |
Amiga-Mad
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I did some scouting on Ebay today but didn't see anything that could work....but not sure yet what they should look like..if they are attached with screws at the front like the floppy drive cassette or stuff in from the back with rails which look like Dell's drive rails which are spring loaded |
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16 January 2008, 22:18 | #8 |
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@ AMIGAZ
At my works they are scrapping some old Compaq Celeron machines, mostly 633s through to 866s. I'll take a look at one tomorrow and get you some drive rails, I can't guarantee they will fit but hey.... BTW, F10 gets you into the Compaq bios on most machines. Just be aware that some save BIOS information on a small partition on the hard drive, it's worth getting the disks from the HP website if they are still there. Merlin |
16 January 2008, 22:42 | #9 | |
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PM me with what you find, please F10? going to try that, thanks |
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17 January 2008, 01:58 | #10 |
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The ones in the servers are similar to these. (Although, the original Compaq rails aren't adjustable, and don't have the gold finish...)
http://www.gementerprises.com/rails.htm |
17 January 2008, 12:47 | #11 |
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17 January 2008, 13:52 | #12 |
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@ Jope
Yes, spot on, which is why I mentioned the partition above. @ AMIGAZ If the machine has two sticks of memory, take one out and switch it on, the machine will register the change and they usually show this message:- "System has changed - press F1 to continue or F10 to setup" Sometimes they have a tamper switch and opening the case registers a change. /me needs to get out more LOL Merlin |
17 January 2008, 14:21 | #13 |
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17 January 2008, 14:23 | #14 | |
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I noticed that after removing all the tiny simm's in it and upgrading it with two 32mb sticks to take here up to 57mb RAM (?) Dunno why it registers the SIMM's as 57mb when it also has I think 4mb soldered on the mobo |
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17 January 2008, 15:59 | #15 |
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Not enough address lines in the SIMM sockets.
Such is life with old hardware.. It could also be a BIOS limitation, but I doubt that. |
17 January 2008, 16:00 | #16 | |
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Quote:
http://www.upgradecomputermemory.com...s/Deskpro-466/ |
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17 January 2008, 20:35 | #17 |
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My guess is that 57Mb is left after 8Mb will have been used for the video memory, Compaq's are prone to having onboard graphics cards.
2 x 32768k = 65536k total memory - 8192k graphics memory = 57344k, am I right? Put in a graphics card and you will get the 8Mb back. These are old skool PCs and you have to know this stuff Sorry, all of the Deskpros and Deskpro ENs being scrapped at work had spring loaded clips inside, not the side rails you need. Merlin |
17 January 2008, 21:57 | #18 | |
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17 January 2008, 23:28 | #19 |
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@ AMIGAZ
136 is a very odd number, 128Mb would report as 131072k. Mind you, these days you may struggle to get 128Mb, 72 pin memory. You also get very weird results if you add Fast Page (FPM) memory to a machine which needs Extended Data Output (EDO) memory. Earlier Compaq machines were very fussy about memory and a killing was made by selling custom Compaq memory to companies. Sometimes, this site is more retro than I thought.... Merlin |
18 January 2008, 20:53 | #20 | |
Amiga-Mad
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Quote:
Guess I'll grab a pair of those adolescent recommended About it stealing 8mb for gfx...hmm....I think there's 4mb or more soldered on the mobo so it must steal more then? |
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