Time to test all the rails on the PSU with and without the board connected.That is a really crisp sounding card!
I have spent the last couple of days filming clips for the compaq deskpro restoration. Got a nice little montage of clips I was really pleased with so decided to crack on with the internals today which included testing the new psu....
No explosions but also no life from the PC
It was filthy and had signs of moisture/dust mixture over a few bits so its been in for a shower and is now out to dry.... Hoping that can fix it. There is a flashing green LED on the motherboard so its definitely getting standby power.
What retro things have you done today?
- Thread starter Duke
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The board looks awful after a rinse and then IPA wash to rinse the water off... Going to the dishwasher next.. It is caked in muck!
Went to my parents yesterday and my dad had found out an AGP FX5200 card and a load of old pc CDROM games as he nkew about my pentium project. Bless him.
Now have star trek 25th anniv. , Tiger Woods 99, microprose ww2 dogfight, ms combat flight sim and Scrabble which I remember us spending hours on playing it over LAN when I lived at home still (his skt478 p4 build we did and my Athlon XP 1700+ machine)
Now have star trek 25th anniv. , Tiger Woods 99, microprose ww2 dogfight, ms combat flight sim and Scrabble which I remember us spending hours on playing it over LAN when I lived at home still (his skt478 p4 build we did and my Athlon XP 1700+ machine)
nice
P4HT rig is basically together. 
I just need to figure out if I have anywhere to plug in front panel USB, Firewire, and audio (on the sound card), because it looks like I don't have a place for any of it!
Also need to sort out an optical drive and stuff. Plus all the time I don't try and switch it on, I don't find out that it doesn't work.
Excuse the potato pics...
The case is this, which I'm told is basically an old Coolermaster case with a few tweaks. Its fully aluminium, quite a nice thing!
I just need to figure out if I have anywhere to plug in front panel USB, Firewire, and audio (on the sound card), because it looks like I don't have a place for any of it!
Also need to sort out an optical drive and stuff. Plus all the time I don't try and switch it on, I don't find out that it doesn't work.
Excuse the potato pics...
The case is this, which I'm told is basically an old Coolermaster case with a few tweaks. Its fully aluminium, quite a nice thing!
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https://web.archive.org/web/20080324131031/http://www.qdigrp.com/qdisite/driver/manual/P2PE800_E.zip
Looking at page 10 of this guide, at the USB front panel header pinouts. They have 1 pin too many, and the pinout doesn't match any of the kinds I can see on Google. Is this some weird now defunkt standard which I'm not aware of?
I can't use my USB front panel without rewiring.
Looking at page 10 of this guide, at the USB front panel header pinouts. They have 1 pin too many, and the pinout doesn't match any of the kinds I can see on Google. Is this some weird now defunkt standard which I'm not aware of?
I can't use my USB front panel without rewiring.
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Thats from when USB headers where single and not paired. I guess if you are super patient you could modify one
I might have to at some point.
Even for single ones the no-connection and ground pins are the wrong way round I think? I am quite confused.
I might have to at some point.
Even for single ones the no-connection and ground pins are the wrong way round I think? I am quite confused.
Old cases actually had individual pins for USB headers (so you had 8x individual connectors to get in the right place, for a typical 2x USB front panel )
Oh, nice.
I think this case is circa 2005~ and the rest of the PC is 2003 with the exception of the graphics card which is 2006.
Basically done now bar ODD which I haven't got yet...
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Check for proper CPU voltage rails, check that power is getting to the BIOS chip, look for any corroded traces or soldered component legs.
Oh, nice.
Probably worth grabbing some dupont connectors and a crimp from Amazon. Won’t be expensive at all and will allow you to knock up an adapter cable using male on one end and female on the other. That way you can use the case on standard USB headers later down the line if you change mobo.
It was the board with the PSU that blew. The power connects to a duaghterboard then comes in via what looks like a triple AGP slot to the mainboard. I have no hope of following traces
The CPU is not getting warm (P2 ~400) with no heatsink on either.
I have inspected the board and cant see any damage.... Looking at replacements there is one for £99... a bit much!
Finally got around to fixing my PC-Chips M919 486 board, replaced the faulty NPN transistor that regulates CPU voltage with a new one, and whilst I was there added the missing one (some boards came with two, some only one, these board seem to have trouble with the high-end 486/5x86 CPUs).
It’s currently installing Windows 95 OSR 2.5, and comprises of 32MB of RAM, an AMD AM5x86 133 (running at 40MHz FSB for 160MHz CPU), an ATi Mach64 PCI 2MB and my Labway ISA sound card.
It’s currently installing Windows 95 OSR 2.5, and comprises of 32MB of RAM, an AMD AM5x86 133 (running at 40MHz FSB for 160MHz CPU), an ATi Mach64 PCI 2MB and my Labway ISA sound card.
Nicely done!
Working 486s are getting rarer in general these days so well done for saving another
Oooh @paradigm did you get a chance to look at the images of my voodoo by any chance. Debating what to do with it now. I am 99.9% I don't have the talent to to fix it myself
Working 486s are getting rarer in general these days so well done for saving another
Oooh @paradigm did you get a chance to look at the images of my voodoo by any chance. Debating what to do with it now. I am 99.9% I don't have the talent to to fix it myself
I'm pretty certain that back in the day I had 95 on my 486 DX2-66. Think I had my Pentium 90 before I installed 98 and ME. Definitely worth having at least some form of Windows 9x on a fast 486, as they are pretty versatile.
Yeah I've looked and can't see anything out of the ordinary. Aside from a quick multimeter test checking for reference voltages I think you're likely stuck with a dead chipNicely done!
Working 486s are getting rarer in general these days so well done for saving another
Oooh @paradigm did you get a chance to look at the images of my voodoo by any chance. Debating what to do with it now. I am 99.9% I don't have the talent to to fix it myself
Probably not keeping the 486 long term though, too many other machines that offer similar performance but a better all-round package. My 386 happily covers early DOS and my K6 covers late DOS and early 9x.
It's a shame but I don't have room for everything