Unknown Motherboard

Floofie · July 22, 2022

Hello LTT forums! About a week or two ago, a friend gave me a motherboard with an embedded Ryzen CPU. I can't find any documentation on the board anywhere except here. I want to replace the cooler for it with something a little more stronger due to how hot it gets, but I am unsure of what type of CPU cooler to get. I'm not sure how my friend acquired this board because I can't even find anything on eBay for it. If any more information is needed to get help I'd be happy to give what I can!

Fasauceome · July 22, 2022

Does the motherboard come with its own backplate? I would measure the mounting holes directly rather than poke around for a spreadsheet. Then see if it's compatible with any standard Intel or AMD mounts.

Floofie · July 22, 2022

1 minute ago, Fasauceome said:

Does the motherboard come with its own backplate?

No. The friend that gifted it said that he already gave me everything he had of it.

1 minute ago, Fasauceome said:

I would measure the mounting holes directly rather than poke around for a spreadsheet. Then see if it's compatible with any standard Intel or AMD mounts.

I'm not really sure how I'd measure the mounting holes properly.

Fasauceome · July 22, 2022

6 minutes ago, Floofie said:

No. The friend that gifted it said that he already gave me everything he had of it.

I'm not really sure how I'd measure the mounting holes properly.

If you don't have calipers, any measuring tape or ruler with some mm measurements will do. You can approximate from the center of each hole, because if you're somehow off by a mm you'd still be pretty much fine.

Is the CPU mounted in a square mounting fashion? Or is it rectangular? I know a lot of embedded motherboards have used Intel's classic 75x75mm hole spacing for compatibility. So there are good odds that any LGA 115x cooler would be alright. Otherwise if they decided to go for Ryzen's rectangular mounting style you'd still be fine with modern coolers.

mariushm · July 22, 2022

1 minute ago, Floofie said:

No. The friend that gifted it said that he already gave me everything he had of it.

I'm not really sure how I'd measure the mounting holes properly.

ffs get a ruler or a measuring tape and measure the distance between the centers of those screws or clips that go through the board.

Get a ruler and measure the heatsink as well (width, length) ... worst case scenario you can get a heatsink without holes and DRILL holes in it for those clips.

Then you can go to a store that sells electronic components like Digikey, Mouser, Newark/Farnell etc and filter the heatsinks by the size your motherboard supports.

Example of heatsinks on Digikey : https://www.digikey.com/short/b5f7zrqt

you can choose from 39k of them in stock.

Floofie · July 22, 2022

5 minutes ago, Fasauceome said:

If you don't have calipers, any measuring tape or ruler with some mm measurements will do. You can approximate from the center of each hole, because if you're somehow off by a mm you'd still be pretty much fine.

I got 34.4mm for the width and 51.4 for the length

5 minutes ago, Fasauceome said:

Is the CPU mounted in a square mounting fashion? Or is it rectangular?

Rectangular

Fasauceome · July 22, 2022

4 minutes ago, Floofie said:

got 34.4mm for the top two holes and 51.4 for the left holes.

AM4 spacing is 90mm by 54mm, so this embedded system went for a very small mount. Sounds as though the heat sink on this socket is quite small? No doubt why you're interested in replacing it.

Unfortunately you wouldn't find a standard CPU cooler compatible with that size mount, and so you could either modify the cooler you currently have to add more aluminum surface area (probably not super easy to do) or you could possibly punch some holes in something like a wraith stealth and mount that on instead.

Or as @mariushmsuggested, a heat sink off digikey could give you just what you need.

Edited July 22, 2022 by Fasauceome

Floofie · July 22, 2022

9 minutes ago, Fasauceome said:

AM4 spacing is 90mm by 54mm, so this embedded system went for a very small mount. Sounds as though the heat sink on this socket is quite small? No doubt why you're interested in replacing it.

Unfortunately you wouldn't find a standard CPU cooler compatible with that size mount, and so you could either modify the cooler you currently have to add more aluminum surface area (probably not super easy to do) or you could possibly punch some holes in something like a wraith stealth and mount that on instead.

Or as @mariushmsuggested, a heat sink off digikey could give you just what you need.

It is very small. Just the main problem is that trying to find the right size of one and also one with the right connector since I haven't seen one of these before for a fan on a regular board. Below is a photo of cooler and board.

mariushm · July 22, 2022

You'll find the heatsinks in one place, and fans in another place.

In such stores that distribute electronic components, the fans tend to come without connectors (loose wires) as it's the job of the company to install a connector.

You can easily cut the wires from the original fan and solder (or twist the uninsulated ends of the wires together and insulate with electrical tape) the wires to the new fan.

Google "fan header pinout" or something like that and you'll find the role of each wire... it will basically be 5v/12v ground rpm sensor pwm

The existing fan could be 5v only in which case you may not want to use the fan header on board because that would also be 5v only. You can take 12v from other places in that case, like the DC in jack.

If you can find some place to cut it down the middle and drill four holes for the screws this one would be great :

Not quite meant for bga chips, it's intended for parts that sit vertically on circuit boards, but as long as the surface where the cpu die is flat it would work :

90 x 46m x 33 mm : https://www.digikey.com/en/products/detail/assmann-wsw-components/V5583K/3511453

would be a bit difficult to drill the screw holes though ---->

later edit : also worth noting about this heatsink is that it's designed so you can screw fans to the top, those vertical channels accept M3 screws and the spacing between the channels is around 35.6mm or 1.4 inch, and generally 45

mm square fans have 37mm distance between the holes which is relatively close. 50mm fans have 40mm between screws. You could screw a fan with just a screw though, or even have a much bigger fan screwed on just one side with two screws.

other choices:

100 x 51 x 20mm : https://www.digikey.com/en/products/detail/t-global-technology/TGH-0510-02/13682124

Cut it down to 90 mm length if needed. Drill holes:

95 x 95 x 15 - cut it to 90 x 50 and you're good : https://www.digikey.com/en/products/detail/t-global-technology/TGH-0955-01/13682144

300x45 x10mm (cut it down to 90mm-ish and you can drill 4 holes, job done) : https://www.digikey.com/en/products/detail/advanced-thermal-solutions-inc/ATS-EXL73-300-R0/5848400

90 x 90 (cut it down to 90 x 50 and you're in business) : https://www.digikey.com/en/products/detail/wakefield-vette/SKV909010-CU/10108377

94mm x 101mm x 27mm : https://www.digikey.com/en/products/detail/advanced-thermal-solutions-inc/ATS-57002-C1-R0/1285073

You could install a standard 80 mm fan on top of the heatsink you choose, or you could go with something more fancy like a squirrel cage fan that would blow air through the fins

For example, this fan would have an opening for the air of around 40mm x 15 mm, just right to blow through the fins of a 50mm wide heatsink and you could cover the top of the fins to make a channel through which air would move :

https://www.digikey.com/en/products/detail/orion-fans/ODB6015-12HHB02A/5361040