Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-28, 15:20

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There is another variant of the same board just with smaller onboard cache and the coast slot. Are SMD tag ram chips available? Even so would it not be more useful to experiment with making a tag ram pcb like i suggested above? While if soldering on an SMD tag would be handy for me, making a PCB …

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-28, 14:43

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'd also like to note in the thread that I had made a PCB to help with the RTC problem that I'm calling the DS1287-Hat I guess I'll upload the files to github later, it's a really nice day here today so I want to head out somewhere and enjoy it. But here are the images for that now if you want see …

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-28, 14:15

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Or we can make a PCB? I threw this together just for the screen grab.

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-28, 13:46

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This is the classic HX setup: 512K (2 x 32Kx8 or 4x 16Kx8) SRAM L2 cache and 2 x 128K (16Kx8) TAG RAM to make the full range of 512 MB RAM cacheable . I see you have cleaned the solderings for the COAST socket. Are you planning to fit a socket in? I was thinking it could be fun to put a coast …

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-28, 12:53

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The tag ram chip is a w24129ak-12, so that's a 16k tag ram i Believe. The onboard cache chips are um61 3264f-7 Which seem to be 2megabit chips, there's two of them so that should be 512k onboard cache. There's a jumper on board to switch between 256k and 512k and the jumper came set to 512, I'm …

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-28, 12:42

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Actually here's a different image without the harsh shadow.

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-28, 12:40

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello. Lots to read but just quickly reponding with images from my phone. The tag ram is socketed. I could try taking the socket out if it helps. Also the vrm looks to be switch mode to my eye. PNP transistors d45h2a. I would also suggest taking a quick look at the old fix up thread, in it i made a …

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-28, 03:07

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

ah, actually I'm wrong. I found a listing on ebay for the same cooler and it clearly shows a little cut out spot for the arm. Not much of a one but it just needs something. I'll order it on amazon, seems to be the cheapest option. Well, this is strangely exciting.

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-28, 02:33

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That cooler should fit your socket no problem. I thought so at first but one of the images in the reviews told me otherwise. The reviewer said it would work with a socket 7 but they had the plastic cpu socket arm that sits flush like the later sockets but mine has a metal arm that sits a shade …

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-28, 02:18

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Quick question Will this cpu cooler fit the socket 7? https://www.amazon.co.uk/StarTech-com-60x65mm-Socket-Cooler-Heatsink/dp/B00006B8DB/ref=sr_1_1?crid=36YLARZ3GATFX&keywords=370%2Bcpu%2Bcooler&qid=1653702058&refinements=p_76%3A419158031&rnid=419157031&rps=1&s=electronics&sprefix=370%2Bcpu%2Bcooler …

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-28, 02:17

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Part 4: Good Varnish News. I wasn't expecting this but I'm glad this worked out. Like I said before I was leaving a chip soak in IPA to hopefully loosen the varnish on it. After washing the motherboard and spraying it with IPA to displace water, I went back to the the chip in the IPA. I picked it up …

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-28, 01:34

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sphere478 wrote on 2022-05-28, 01:04: Props to your patience with the dallas. […] Show full quote Props to your patience with the dallas. I just order aftermarket replacments. Ooo hx board. Have you looked up your clock gen? Can you get a pic of the whole socket from the rear? The clock chip is a …

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Re: USB to Serial Mouse using the Pi Pico!

Posted on 2022-05-27, 21:40

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by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Smoker huh? I bought a processor once, opened it up and car instantly smelled like smoke… ugh.. You should make separate threads :-) have a build thread and a thread for the bracket also Keeps things organized and easier to search Not smoke, just the smell of dry mould Also the socket 7 has it's …

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-27, 20:28

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I had a bit too much fun drilling out the battery contacts.

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-27, 18:58

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Part 3: Bath Time In a last bit of preparation before bath time I took any socketed chips out of their sockets and tried to take off the soyo sticker but that just disintegrated. Oh well. So it got a simple bath of Dish Soap and water. I scrubbed the sockets with a toothbrush and washed the main …

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Re: Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-27, 18:21

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Part 2: 74HCT14N Getting the board on the bench for inspection revealed not much at first. The most noticeable issue is the dirt that I think this image shows the best out of the ones I took. Image Dropdown https://www.vogons.org/download/file.php?mode=view&id=138263 Ignoring the smell, I checked …

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Fixing up a Soyo SY-5TF Socket 7 Motherboard

Posted on 2022-05-27, 17:20

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello everyone! I had made a thread about fixing up a PC in the past that you can find here if you're interested! It was fun to make that thread so here is another repair thread, Unlike my previous thread, this one will update in real time since I haven't so much as given the board power yet. So the …

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Re: USB to Serial Mouse using the Pi Pico!

Posted on 2022-05-27, 13:10

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Quick note. My socket 7 motherboard arrived and it stinks. I opened the box and gagged kind of stink. This is gonna be a fun one.

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Re: USB to Serial Mouse using the Pi Pico!

Posted on 2022-05-27, 02:13

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Pad on the back underside also? I suppose why not. This was just a quick edit to show the idea. I didn't edit the pads or foot prints for it. edit: keep in mind that the images are taken in Fusion. I export the step files from kicad and import them into fusion so they can go together but the export …

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Re: USB to Serial Mouse using the Pi Pico!

Posted on 2022-05-27, 02:02

by

by CalamityLime

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

(quick edit) There's the general idea and the files. Key'd so the user shouldn't put the pieces together wrong. Should be mechanically good for a panel mount socket cutout or something. I added some random amount of clearance in the hole for that slight rounding you get with milling. I'd guess that …

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