Question EPYC 9124 (GENOA, SP5) heatsink suggestions welcome

[Pisi]

Building a NAS server (mostly data storage, no major computational load envisioned) around the EPYC 9124 (SP5, 200W TDP). To be used in a regular uATX case, i.e. no rackmount, no huge jet-turbine-like datacenter fans involved. Should I attempt a passive solution, or should I go with an active heatsink?

(Does Noctua make CPU coolers for the SP5 socket? I couldn't find any!)

 

[Markfw]

use this

AMD EPYC 9004 CPU 4U SP5 Cooler Fans 6 tubes Nickel plating on copper sp5 | eBay

All products we send are declared on the lowest standard, fees.

www.ebay.com

 

[Pisi]

use this

Looks awesome, thanks! It ships from China though, and I am too impatient to wait that long. What do you think of this one?

Btw, do they come with thermal paste, or should I procure my own?

 

[Markfw]

I don't remember how long it took, but it was not weeks. Maybe a week. All I can day is at least the one that first came up (I have 3 of these) ordered Nov 25, 2023 and delivered Dec 1st 2023. The other was ordered May 26, same year and delivered Jun 1. different providers. I have ordered from this supplier before, and I can't say for sure, but the timing would be the same I guess. That one by supermicro looks like a 92mm fan, and I have one like that and it loud like a jet plane vs 2 120mm fans.

Edit: Thermal paste: all 3 use this methods, and it works. But I had to redo the pase on one, as I had to change CPUs. mine are on 9554's. If you get it, make sure you torque it in order as the spec from the motherboard using the threadripper tool ot to 13.3 inch pounds.

 

[Pisi]

That one by supermicro looks like a 92mm fan, and I have one like that and it loud like a jet plane vs 2 120mm fans.

Yeah, I've been told it might be loud. I will cancel it, and order the one you recommended, thanks.

 

[Markfw]

Yeah, I've been told it might be loud. I will cancel it, and order the one you recommended, thanks.

BTW, on my 9554's with all 128 threads loaded it is fairly quiet and runs as high as 87C, but it can go to 100c. Also, it does 3.5 ghz on all 128 threads ! On a 16 core, damn it should be fast !

 

[Pisi]

@Markfw: Alright, I got everything I need, finally, and just assembled them all together ... only the mobo doesn't power up!!! Not sure I made the right power connections though: mobo has 3x8 pin + 1x4 pin power inputs. I only connected one of the three 8 pin inputs: should I connect them all? The 4 pin is being powered via 18-to-24-to-4 pins cables.

Here's what the PSU looks like:

 

[Markfw]

What mobo is this again ? You need ALL of the 8 pin cpus populated, but I have never seen a motherboard that takes more than 2. and a 4 pin also ????

 

[Pisi]

What mobo is this again ? You need ALL of the 8 pin cpus populated, but I have never seen a motherboard that takes more than 2. and a 4 pin also ????

This one: https://www.asrockrack.com/general/productdetail.asp?Model=GENOAD8UD-2T/X550#Specifications

 

[Markfw]

This one: https://www.asrockrack.com/general/productdetail.asp?Model=GENOAD8UD-2T/X550#Specifications

OK, then plug in ALL the 8 pin and the 4 pin. Clearly they are all power.

"1 (4-pin, ATX PSU signal) w/ ATX 24-pin adapter cable, 3 (8-pin, ATX 12V) support 12V DC-in"

Edit: actually, you don't have a 4 pin power in addition to the 3 8 pin.

Now motherboard ??? Take that one back ??? my

Supermicro Server Motherboard MBD-H13SSL-N Socket SP5​

Only requires 2 8 pin. + 24 power.

 

[Markfw]

If its easier to return the PSU (first see if you can find one with 3 8-pin CPU + one 4 pin) then take the PSU back. one of them has to go.

EDIT: I just thought of this. Call ASRock tech support and tell then you only have 3 6+2 CPU plugs, and ask them what to do.

 

[Pisi]

If its easier to return the PSU (first see if you can find one with 3 8-pin CPU + one 4 pin) then take the PSU back. one of them has to go.

EDIT: I just thought of this. Call ASRock tech support and tell then you only have 3 6+2 CPU plugs, and ask them what to do.

I just bought another 8-pin cable: it should arrive tomorrow morning. In the meantime let me see if the mobo powers up with only 2 of the 8-pins populated.

 

[Pisi]

Just as an update: it turns out that the Epyc 9124 I purchased from eBay was locked for Dell server motherboards ...

As such, I had to abandon the build, and send everything back.

 

[DrMrLordX]

Just as an update: it turns out that the Epyc 9124 I purchased from eBay was locked for Dell server motherboards ...

As such, I had to abandon the build, and send everything back.

Back when AMD started doing this, people speculated that locked parts could wind up on eBay. And wouldn't you know it, they did. What a load of horse manure. Sorry you had to go through all that trouble.