Hi, do you know what kind of coolers/mounts are compatible with the board (AM4/Intel)?
Compatible coolers?
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Kothandaraman Kannadasan Staff member
Dear @Alex Redshaw, The AADP and AVA systems are equipped with the ADATA XPG LEVANTE 240 ARGB CPU Cooler coolers. Click_here for more information. It would be our pleasure to assist you.
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Hello @Kothandaraman Kannadasan,
Does the ADATA XPG LEVANTE 240 ARGB CPU Cooler you linked ship with a cooling block bracket that is compatible with the Ampere Altra CPU bracket? At first glance it looks like it may be AM4 compatible but after looking at the brackets provided with the retail ADATA XPG cooler versus whats on the Ampere Altra Developer Platform they don't appear to be the same.
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Did a bit of research and the LGA4926 socket that the Ampere Altra uses is not AM4 compatible and will not work with the retail ADATA XPG Levante 240 Cooler. Unfortunately the bracket used for the AADP and AVA systems doesn't appear to be available for direct sale.
Good news is that Alphacool creates an AIO cooler that is available to buy with a compatible bracket:
https://www.aquatuning.us/water-cooling/kits-systems-and-aios/all-in-one-cpu/27125/alphacool-eisbaer-pro-aurora-240-cpu-aio
https://www.aquatuning.us/water-cooling/cpu-water-blocks/cpu-mounting/29237/alphacool-eisblock-xpx-pro-lga-4926-ampere-mounting-bracket
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Ruler of COM Staff memberThis is the actual socket being used to seat the Ampre Altra SOCs :
SKT 4926 ILM & BP, TOP-MOUNT, HF
ARM
P/N : AZIF0222
from Lotes
https://www.lotes.cc/en/product.php?act=view&id=566At the moment we are using the following Liquid coolers
on the 32-core systems we use a single fan MasterLiquid Lite 120 from CoolerMaster
https://www.coolermaster.com/catalog/coolers/cpu-liquid-coolers/masterliquid-lite-120/on the 64-core systems and above we are using a dual fan Levante 240 from XPG
https://www.xpg.com/tw/xpg/644?tab=galleryFor both liquid coolers we had to engineer our own brackets to fit them on the Lotes socket.
Internally this is an LGA 4926 socket.As Brian mentioned Alphacool seems to offer an off the shelve solution with their Eisbaer Pro Aurora 240 and their additional Eisblock XPX Pro LGA 4926 Ampere Mounting Bracket.
We have no experience with Alphacool Eisbear but will order one and follow up after testing.
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I have the Eisbaer Pro Aurora 240 and Eisblock XPX Pro LGA 4926 Ampere Mounting Bracket sitting here in my office right now. Unfortunately I'm still waiting on my 80 core Altra dev kit to ship so I can test the two together. Once I can pair the two together I'll be happy to report back on the compatability unless Ruler of COM beats me to it :-)
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Ruler of COM Staff member
I checked we ship out open orders for kit next Tuesday I think online sales guys already reached out to those who are waiting.
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I just recieved my Ampere Altra Dev Kit and I have some good news and bad news.
The good news is that the Eisblock XPX Pro LGA 4926 Ampere Mounting Bracket does fit on the base plate of the CPU socket.
The bad news is that the water block base is slightly too big and does not lay on the CPU heat spreader due to the inset design of the socket. The only way to make this work would be to fabricate a copper shim that sits sandwiched between the CPU heat spreader and water block base, which I fear is not an optimal solution for thermal dissapation.
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Ruler of COM Staff member
We got ours and had the same problem.
I just send a message to Alphacool if we misunderstand something.
The socket being used by us is the offical Ampere Altra socket, there are not other options
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Just got my dev kit today and tried the Alphacool cooler and discovered the same issue of the block being too big to fit the recess to the CPU :-( Is it possible to order the custom bracket for the Levante 240 from XPG?
If I can avoid it I'd like my office to not sound like a server room, when the fan gets going on the provided block it's a bit noisy :-)
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I got the Alphacool Eisbaer Pro Aurora 240 with the Eisblock XPX Pro LGA 4926 Ampere Mounting Bracket installed on my dev kit over the weekend. Late last week I pulled off the stock cooler (interestingly the contact patch with the stock cooler is quite small and does not appear to provide very even presssure on the thermal paste) and using some calipers measured the distance from the mounting bracket down to the Ampere CPU. It is 2.5mm. I then ordered a 3mm thermal pad from Amazon (https://www.amazon.com/Kritical-Thermal-Pads-Conductivity-microelectronic/dp/B09PZHMZCF). I cut the thermal pad to fit in the socket indent with about a 3mm gap all around to allow for some spread when I installed the cooler.
Results are as follows:
Stock cooler - Ambient 77.8F
Idle: 46C 8.4W
100% sustained load 88C 60W (running stress --cpu 80)
Alphacool AIO - Ambient 77.5F
Idle: 40C 8.4W
100% sustained load 68C 60W (running stress --cpu 80)
I'm reasonably happy with these results with one exception I'm running my fans from the Fan header on the COM-HPC board to have system fan control. I soldered a JST connector (https://www.amazon.com/dp/B09DYLY95R) to a male fan connector to make the cable. The cable works as expected and the fan speeds change with the CPU temperature however the fan curve is way to aggressive for the water cooler and I have yet to find a way to adjust the fan curve. I ordered a Noctua PWM manual fan controller (https://www.amazon.com/dp/B072M2HKSN) to use on the FAN1 header on the motherboard to hopefully find the sweet spot for sound and cooling.
Anyhow, I think I'm going to keep the Alphacool installed as the temp drop is significant. This is what my system looks like right now, excuse the janky setup waiting on a Sliger Cerberus X case to ship to me.
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@Ruler of COM any word from alphacool?
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@Ian Hollier everything still running okay with the modded pwm cable and thick thermal pad?
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