I don't know whether they'll ship to US.The AMD SP3 4U-P42 looks interesting. It has one more heatpipe than the SNK-P0064AP4 4U Supermicro cooler. Any place in the US that carries the AMD SP3 4U-P42? Depending on the price, I might be interested in picking one up to compare to the SNK-P0064AP4 heatsink.
Have you had a chance to test this heatsink?I don't know whether they'll ship to US.
I have bought one (from taobao.com), and it only costs 160 CNY, about 25 USD.
I'd like to know how the extra 6th heatpipe on the AMD SP3 4U-P42 affects performance.I Would just recommend the SNK-P0064AP4. You can find it on Supermicro’s Estore website should be able to handle up to 280w TDP
I would like to know this as well. It seems like this unit is hard to come by. Maybe someone here has tried it. I’d assume Supermicro would designed their Heatsink based on AMDs spec (possibly the 4U-P42). Performance shouldn’t be to far off.I'd like to know how the extra 6th heatpipe on the AMD SP3 4U-P42 affects performance.
I've used several 4U Noctua TR4-SP3 heatsinks with 2x 92mm fans with 200W EPYC 7443P systems and it keeps it at ~70C with all cores loaded with Prime95 at a low noise level, but all-core turbo is stuck at ~3.4GHz.
I might just spend the £25 and buy one from AliExpress.I would like to know this as well. It seems like this unit is hard to come by. Maybe someone here has tried it. I’d assume Supermicro would designed their Heatsink based on AMDs spec (possibly the 4U-P42). Performance shouldn’t be to far off.
Case : Supermicro 743AC-1K26B-SQIt's not just the CPU coolers. Which case do you use? Which/how many fans? How are the fans controlled?
Do you mean 2 more fans in the middle ?You need to add two more fans to the fan wall to complete it. I have no idea why SM only includes 2 fans. 4 are needed to actually get the warm air out of the case, especially with 2 CPU’s.
Yes, the middle fan wall needs to be fully populated and the case cover needs to be on/sealed for the front/back airflow to work properly. Think of it like a 4U case that stands vertical. Case fan airflow is critical to getting cool air to the CPU and onboard heatsinks and moving hot air away from those components.Do you mean 2 more fans in the middle ?
Even I have left the case door open and put it in room with 18 C temperature, but no changes. do you still believe in middle fans?
It may seem counterintuitive, but leaving the side panel open with these cases can actually hurt cooling performance due to leakage. You want all the air pulled by the fans to come into contact with the heat sources.Even I have left the case door open and put it in room with 18 C temperature, but no changes. do you still believe in middle fans?
Jepp, that case isn't the greatest for airflow, or at least requires a lot of fan power to push enough air for two 200W+ CPUs. Some SI tried to sell me on that case for a similar build, I said no thank you. Adding the second rear exhaust fan won't hurt either.
It may seem counterintuitive, but leaving the side panel open with these cases can actually hurt cooling performance due to leakage. You want all the air pulled by the fans to come into contact with the heat sources.
What Chassis and Motherboard do you recommend for full continues 128 cores load on Dual AMD 7773X? 4U rack mounting is preferred if it produces lower noise.Jepp, that case isn't the greatest for airflow, or at least requires a lot of fan power to push enough air for two 200W+ CPUs. Some SI tried to sell me on that case for a similar build, I said no thank you. Adding the second rear exhaust fan won't hurt either.
It may seem counterintuitive, but leaving the side panel open with these cases can actually hurt cooling performance due to leakage. You want all the air pulled by the fans to come into contact with the heat sources.