Erratic readings and brief way over TJMAX. Normal?
Posted: Thu Apr 03, 2014 12:23 am
I am using Core Temp 1.0 RC7 on an AMD A10-5700 running Windows 8.1. Compared to my Core Temp experience with Windows 7 on an AMD Phenom and XP on an AMD Athlon, I am seeing some things that surprise me.
The temperature reading is very erratic. It can jump up more than 10degC in a single 1-second sample. Then it typically lowers itself over the next several seconds back down to hovering around 50. (This is when nothing big is going on.) TJMAX is listed at 70; but some of the jumps are well over that. Indeed, after Core Temp has been running for a few hours, I will generally see a reported max as high as 84. With TJMAX at 70; that tends to worry me. Should it?
It never behaved this way with the other systems. With them, temperature changes were always gradual. I am using a beta version because the release version did not work at all. Could this erratic behavior be misbehavior? Or could it be that there is a lot less thermal lag between the sensor and the source of the heat with these new APUs? Could it be that the power regulation is agile enough that the brief high temperatures can be ignored? Would it make sense to introduce some low pass filtering on the reported temperature to avoid anxiety? E.g., a configurable "average temperature over [parameter] seconds".
The temperature reading is very erratic. It can jump up more than 10degC in a single 1-second sample. Then it typically lowers itself over the next several seconds back down to hovering around 50. (This is when nothing big is going on.) TJMAX is listed at 70; but some of the jumps are well over that. Indeed, after Core Temp has been running for a few hours, I will generally see a reported max as high as 84. With TJMAX at 70; that tends to worry me. Should it?
It never behaved this way with the other systems. With them, temperature changes were always gradual. I am using a beta version because the release version did not work at all. Could this erratic behavior be misbehavior? Or could it be that there is a lot less thermal lag between the sensor and the source of the heat with these new APUs? Could it be that the power regulation is agile enough that the brief high temperatures can be ignored? Would it make sense to introduce some low pass filtering on the reported temperature to avoid anxiety? E.g., a configurable "average temperature over [parameter] seconds".