What retro activity did you get up to today?

Discussion about old PC hardware.

Re: What retro activity did you get up to today?

Postby Cyrix200+ » 2019-8-13 @ 06:06

kaputnik wrote:
Cyrix200+ wrote:I had been reverse engineering the jumper settings for a MHz display in one of my cases, but I could not get one of the segments to work. I had concluded that the segment must be defective :(

Today I desoldered it from the PCB (nice first job for my new desoldering station), and tested it. The segments LED is indeed not working :( Unfortunately it's the middle horizontal one, so I can only make a 1 or a 7 now :(

I wonder if I can find a replacement. Finding the data sheet for the display unit was surprisingly easy (and very helpful).


Those 7 segment displays are usually standard off the shelf stuff. Shouldn't be hard or expensive to find a replacement :)

If you can't find a 2 digit one, I'd guess two 1 digit ones would be fine too. The pin configuration on those displays seems to be pretty standardized.


I have been looking for a replacement last night, the pinout seems standard, and so does the voltage (if I pick the same color). Now finding one (or two) for a decent price (including shipping) is a bit harder. Replacing it with two 1 digit displays seems impossible, it has 2x 9 pins. Will continue the search today.
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Re: What retro activity did you get up to today?

Postby henryVK » 2019-8-13 @ 06:50

Replaced the little 40mm fan in a shuttle ATX PSU with my first Noctua fan.

Boy, if that wasn't the best 12 Euros I spent on that machine so far! Barely can hear the damn thing now.
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Re: What retro activity did you get up to today?

Postby imi » 2019-8-13 @ 12:13

be careful replacing PSU fans with more silent (and often slower) variants, they might not provide enough airflow for adequate cooling and might kill the PSU if it doesn't have good thermal protections, always compare the airflow of the stock fan with the one you replace it with.

It's probably a non-issue if the PSU isn't under constant heavy load, but it is definitely a thing to consider.
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Re: What retro activity did you get up to today?

Postby oeuvre » 2019-8-13 @ 13:11

also make sure you refill the PSU fluid
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Re: What retro activity did you get up to today?

Postby henryVK » 2019-8-13 @ 14:03

Hmm, thanks for the warning. I didn't think it would make a big difference, tbh.

The old one has something like 6.9 cfm over the Noctua's 4.8, but then, there's no great loads on this PSU.

Maybe a good idea to just monitor the temperature for a while. I was actually planning on putting in an additional case fan to help with overall cooling, that might offset things.
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Re: What retro activity did you get up to today?

Postby imi » 2019-8-13 @ 16:53

when I got this case the CD drive was jammed into the case, including the drawer mechanism, forgot to take a picture before... only took one after I aligned it...
hardware22_01.jpg

had to pull out the drawer with a flat piece of metal:
hardware22_02.jpg

the open/close latch was jammed, so I opened the drive and almost lost the tiny bearing balls that came falling out ^^... the magnet inside with the metal clips came loose and somehow got jammed inside the plastic housing, after pulling it out and aligning it again it seems to work fine :)
hardware22_03.jpg

and did a quick cleanup, that's one happy 1992 CD-Rom drive :)
hardware22_04.jpg
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Re: What retro activity did you get up to today?

Postby Turbo -> » 2019-8-13 @ 17:04

imi wrote:when I got this case the CD drive was jammed into the case, including the drawer mechanism, forgot to take a picture before... only took one after I aligned it...
hardware22_01.jpg


That PC case is really nice.
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Re: What retro activity did you get up to today?

Postby imi » 2019-8-13 @ 17:07

it is indeed, my first desktop case, I like the "car hood" like opening mechanism ^^ and if that wasn't enough it also came with that odd but awesome mitsumi drive.
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Re: What retro activity did you get up to today?

Postby oeuvre » 2019-8-13 @ 17:10

Saw the new Rocko's Modern Life special on Netflix. It was amazing, especially if you grew up watching the show.
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Re: What retro activity did you get up to today?

Postby MMaximus » 2019-8-13 @ 18:34

Turbo -> wrote:
imi wrote:when I got this case the CD drive was jammed into the case, including the drawer mechanism, forgot to take a picture before... only took one after I aligned it...
hardware22_01.jpg


That PC case is really nice.


actually I had a similar one and the build quality wasn't great - thin metal and lots of flex. I don't know if yours is built any better?

Love the hood though!
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Re: What retro activity did you get up to today?

Postby SpectriaForce » 2019-8-13 @ 18:51

imi wrote:I'm sure someone would have use for the remains...


If someone is interested in a free Diamond Monster 3D Voodoo with a missing capacitor, then let me know. I still have it.
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Re: What retro activity did you get up to today?

Postby mothergoose729 » 2019-8-13 @ 19:27

SpectriaForce wrote:
imi wrote:I'm sure someone would have use for the remains...


If someone is interested in a free Diamond Monster 3D Voodoo with a missing capacitor, then let me know. I still have it.


I would take it, but you should know, that is five minutes and a capacitor away from being worth 80$-100$ USD ;)
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Re: What retro activity did you get up to today?

Postby TheAbandonwareGuy » 2019-8-13 @ 19:43

mothergoose729 wrote:
SpectriaForce wrote:
imi wrote:I'm sure someone would have use for the remains...


If someone is interested in a free Diamond Monster 3D Voodoo with a missing capacitor, then let me know. I still have it.


I would take it, but you should know, that is five minutes and a capacitor away from being worth 80$-100$ USD ;)


Depending on what type and which capacitor it is, that may not be a job for a novice with solder.
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Re: What retro activity did you get up to today?

Postby jaZz_KCS » 2019-8-13 @ 20:43

TheAbandonwareGuy wrote:
mothergoose729 wrote:
SpectriaForce wrote:
If someone is interested in a free Diamond Monster 3D Voodoo with a missing capacitor, then let me know. I still have it.


I would take it, but you should know, that is five minutes and a capacitor away from being worth 80$-100$ USD ;)


Depending on what type and which capacitor it is, that may not be a job for a novice with solder.


Although even a novice with way too gratuitous amounts of solder can easily "blob-botch" one of these if capable of a half-steady hand, which would result in a working albeit ugly result, I do agree.
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Re: What retro activity did you get up to today?

Postby Daniël Oosterhuis » 2019-8-13 @ 20:49

SpectriaForce wrote:
imi wrote:I'm sure someone would have use for the remains...


If someone is interested in a free Diamond Monster 3D Voodoo with a missing capacitor, then let me know. I still have it.


If you're serious on that, I'd be on that immediately, sounds like a fun repair project to me!
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Re: What retro activity did you get up to today?

Postby SpectriaForce » 2019-8-13 @ 21:12

Daniël Oosterhuis wrote:
SpectriaForce wrote:
imi wrote:I'm sure someone would have use for the remains...


If someone is interested in a free Diamond Monster 3D Voodoo with a missing capacitor, then let me know. I still have it.


If you're serious on that, I'd be on that immediately, sounds like a fun repair project to me!


Send me a PM if you want to collect it or contact me via my website.
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Re: What retro activity did you get up to today?

Postby imi » 2019-8-13 @ 21:57

MMaximus wrote:actually I had a similar one and the build quality wasn't great - thin metal and lots of flex. I don't know if yours is built any better?

Love the hood though!


I wouldn't say build quality is great... the metal isn't really thin as such but yes the whole case flexes quite a bit when open because the whole case is just held together by one big U-shaped metal piece (I guess it'd be better if I had it standing on a stable surface), also the whole case is a bit "ouf of shape", but eh, I still like it :)
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Re: What retro activity did you get up to today?

Postby bjwil1991 » 2019-8-14 @ 00:36

The CD drive must be a Mitsumi CRMC-LU005S.
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Re: What retro activity did you get up to today?

Postby Tiido » 2019-8-14 @ 00:41

I'm making RAM sticks ~
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Re: What retro activity did you get up to today?

Postby Jed118 » 2019-8-14 @ 02:25

Cyrix200+ wrote:
kaputnik wrote:
Cyrix200+ wrote:I had been reverse engineering the jumper settings for a MHz display in one of my cases, but I could not get one of the segments to work. I had concluded that the segment must be defective :(

Today I desoldered it from the PCB (nice first job for my new desoldering station), and tested it. The segments LED is indeed not working :( Unfortunately it's the middle horizontal one, so I can only make a 1 or a 7 now :(

I wonder if I can find a replacement. Finding the data sheet for the display unit was surprisingly easy (and very helpful).


Those 7 segment displays are usually standard off the shelf stuff. Shouldn't be hard or expensive to find a replacement :)

If you can't find a 2 digit one, I'd guess two 1 digit ones would be fine too. The pin configuration on those displays seems to be pretty standardized.


I have been looking for a replacement last night, the pinout seems standard, and so does the voltage (if I pick the same color). Now finding one (or two) for a decent price (including shipping) is a bit harder. Replacing it with two 1 digit displays seems impossible, it has 2x 9 pins. Will continue the search today.


If you're in the GTA, I know where to get these for pennies. Old school ones too.
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