Dynatron Unveils A50 3U Rack Air Cooler for sTRX4 and sWRX8

[btarunr]

The Dynatron A50 is designed for those using AMD Ryzen Threadripper processors in a quasi-server setting, in 3U rack cases. It is a super-compact tower-type CPU Cooler designed to augment the rack airflow. The cooler measures 82 mm x 119 mm x 110 mm (WxDxH), weighing 600 g, but is capable of thermal loads of up to 280 W TDP. This is possibly solely due to the insanely high airflow of its custom 80 mm fan. This fan turns at speeds of up to 8,000 RPM, pushing 38.3 CFM of airflow, but at 64.4 dBA noise output, and nearly 24 W power-draw. Its design involves a base-plate with retention module for sTRX4/xWRX8, from which four 6 mm-thick copper heat pipes convey heat to a dense aluminium channel heatsink.



View at TechPowerUp Main Site

 

[Chrispy_]

Uh, no. That's not enough heatsink area or heatpipes for the baseplate.

All the CPUs this thing targets have compute dies that are barely covered by the outer two heatpipes, and in the case of the 4CCD lower-end Threadrippers we're looking at one slim 6mm(?) heatpipe responsible for TWO 8-core CCDs. As far as the 48 and 64-core options, I believe the second row of CCDs are f*cked.

 

[zlobby]

Looks suspiciously like a turbofan. With these 8000rpm it surely will sound like one. But hey, it's meant to stay at some datacenter, so who cares?

 

[SOAREVERSOR]

Uh, no. That's not enough heatsink area or heatpipes for the baseplate.

All the CPUs this thing targets have compute dies that are barely covered by the outer two heatpipes, and in the case of the 4CCD lower-end Threadrippers we're looking at one slim 6mm(?) heatpipe responsible for TWO 8-core CCDs. As far as the 48 and 64-core options, I believe the second row of CCDs are f*cked.

This is for racks.

 

[Chrispy_]

Looks suspiciously like a turbofan. With these 8000rpm it surely will sound like one. But hey, it's meant to stay at some datacenter, so who cares?

I'm not sure an 8000rpm fan can do anything if there's no airflow or heatpipes in what seems to be the highest-priority locations!

This is for racks.

Yes I use racks. That doesn't change the obvious problem I'm pointing out. Thankfully this is incompatible with the larger 96-core Genoa EPYCs, because those CCDs go even wider and 8 of 12 packages would be inadequately cooled IMO.

 

[tygrus]

Come back with 6 or 7 heat pipes & rebalance the fan to heatsink. Some heat pipes offset towards centre, larger heatsink area, thinner fan, less rpm but bigger diameter than this 80mm screamer, please.

 

[Chrispy_]

3U should be enough height to allow a 100mm fan, if you're going for maximum fan size. At the very least, 92mm is a common size to use instead of 80.

Given that this is targeting only AMD TRs and EPYCs of a specific size and layout, (2-8 CCDs) even four heatpipes could work if they weren't half-wasted on the cool-running IO die at the centre of the IHS. A 5-heatpipe cooler would make perfect sense for the intended use, with one heatpipe centred over the IO die and two heatpipes centred over the inner and outer CCDs.