Good torque screwdriver for AMD Epyc SP5 processors

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lunadesign

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Aug 7, 2013
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What's a good torque screwdriver for installing an SP5 processor on the H13SSL-NT motherboard?

The H13SSL-NT manual specifies a range of 10.8 - 13.0 lbf-in. This is lower than the 14.0 lbf-in specified for H12SSL-NT (SP3) and M12SWA-TF (sWRX8) and a bit lower than the little orange Threadripper Torx Tool (13.3 lbf-in).

Most of the standard torque screwdrivers on Amazon seem to cover wide ranges (10-70 lbf-in) with not very precise settings. The digital ones seem very precise but the user has to know to stop tightening based on some beeps (which in the end seems not very precise). I'd prefer a standard one that stops when I hit the specified amount of torque.

Thanks in advance!
 
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NablaSquaredG

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Proxxon MicroClick MC-5 (idk, if you can get it depending on where you’re located)
 
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pimposh

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Nov 19, 2022
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At work i got plenty of Tohnichi screwdrivers and they are really built with quality. Every year got 'em checked/and if stored/used correctly there are no issues. Hence my advice. (1.5BMRD2 might be fitting that torque range)
 
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lunadesign

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drdepasquale said:
These are the most precise screwdrivers for Threadripper and most EPYC sockets
www.ebay.com

AMD Ryzen Threadripper/EPYC SP3 Processor Torx S20 Tool (Screwdriver only) | eBay

Genuine AMD Ryzen Threadripper/EPYC SP3 Processor Torx S20 Tool (Screwdriver only)
www.ebay.com
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I'm not sure you read my original post, but I specifically noted that the orange TR tool does not work on SP5, which is what I'll be working with. The TR tool is set a bit above the high end of the SP5 torque range.
 
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pimposh

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lunadesign said:
Thanks! How do you get them "checked"?
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Using authorized 3rd party that offer check/calibration torque tools services
You can look up around for professionals doing the job and ask for advice as well which reputable brand to choose as it may vary in different regions.
 
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i386

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lunadesign said:
I'm not sure you read my original post, but I specifically noted that the orange TR tool does not work on SP5, which is what I'll be working with. The TR tool is set a bit above the high end of the SP5 torque range.
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I think you're overthinking it :D
I've used the orange screwdriver on different boards and before it engages you can already feel that the screw is tightened enough.
 
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drdepasquale

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lunadesign said:
I'm not sure you read my original post, but I specifically noted that the orange TR tool does not work on SP5, which is what I'll be working with. The TR tool is set a bit above the high end of the SP5 torque range.
Click to expand...
There is a green EPYC screwdriver that is a bit longer, but these are rarer
 
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Jemplayer

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I got a Wera torque screw drive that does inch pounds and a matching bit set. Might be over kill but I love wera tools and any excuse to expand my collection I’ll take it.
 
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lunadesign

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i386 said:
I think you're overthinking it :D
I've used the orange screwdriver on different boards and before it engages you can already feel that the screw is tightened enough.
Click to expand...
You're probably right but these procs aren't cheap and I don't want to ruin one! :p

I'm also installing this in a tower case (so motherboard will be standing) with a big heavy air cooler on it. I'm thinking that could be a factor over time if I don't get it right.
 
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lunadesign

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Jemplayer said:
I got a Wera torque screw drive that does inch pounds and a matching bit set. Might be over kill but I love wera tools and any excuse to expand my collection I’ll take it.
Click to expand...
Yep. Very tempted to do this. Preferably with a long extension so I can get around the huge heatsink.
 
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lunadesign

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For what its worth, I ended up using the following and they worked great:

Wera 7446 Torque Screwdriver
https://www.amazon.com/gp/product/B003KN3GAK

150mm Torx Bits
https://www.amazon.com/gp/product/B088QG3XMX

I used the Wera torque screwdriver set to 12 inch-pounds (middle of the SP5 range) and the long Torx bits to work around a tall heatsink. They worked great together.

After I ordered the Wera screwdriver, I learned there is an ESD variant of the 7446 that costs a small amount more.
 
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