I just built an asus trx50 workstation with 512gb of vcolor 6000 ram without heat spreaders.
I thought I was experiencing thermal throttling, so came across the recent threadripper v-color throttling video.
I ran the intel mlc program and monitored lm-sensors, and it shows over 100c. However, I don’t seem to be getting throttled. Three runs and the rates are rock solid at 180gb read only.
I put the t_sensor in between two sticks, to get the fan to speed up, and it peaks at 70c.
I guess my questions are:
- could the temps be wrong? 100c is rather concerning, is it not?
- why doesn’t it appear to be throttling, if that temp is correct?
- is there anything else I should check?
Thanks
Dan
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you might be tripping over the Asus trx50 bug wherein it does not throttle the memory at all and can ruin the memory.
the spd being 100c is… not fatal … but the ts1/0 should not be that hot.
currently investigating the Asus bug.
strongly recommend fans on the memory. what’s the cpu cooler in the mix?
Thanks for the response.
Cooler is the silverstone tr5.
I just found the ddr5 cooling megathread, and am going to try the 3d printed duct.
Scary that such a bug could ruin the memory, especially with it hard to come by these days.
I was running heavy threaded loads, and wondering why the cpu temp wasn’t going very high. Had to get the SPD kernel mod working to get the memory temps to see this might be the issue. But, MLC seems to indicate otherwise, so who knows.
My last pc I built over 10 years ago. Much has changed. You guys are an incredible resource.
Okay, hold on a sec – if you’re seeing 100°C, it could just be a faulty sensor or maybe it’s not placed right. Try checking with another tool like lm-sensors, ipmctl, or SMART. Also, update your BIOS or firmware and double-check where your DIMM sensor is located. Then, do a long stress test while keeping an eye on performance counters to see if the throttling is actually happening.
So the sensors showing 100C are part of the ram. I have a T_SENSOR wire sitting on the ram showing 70C (obv. will be lower).
BIOS is on the latest.
I’ve considered maybe I have lm-sensor setup incorrectly. I used the echo’s at the bottom of this: asus-trx50-sage-wifi-sensors.conf · GitHub. AI says it’s wrong, but I think it’s right. It shows in lm-sensors as:
spd5118-i2c-0-50
Adapter: Synopsys DesignWare I2C adapter
temp1: +55.0°C (low = +0.0°C, high = +55.0°C) ALARM (HIGH)
AI says it should be on the “SMBus PIIX4 adapter”, not “Synopsys DesignWare”. Again, I think it’s wrong.
Thanks for the top on the ipmctl or SMART, but wasn’t able to get anything new out of them.