Temperature alarm issue

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golem

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I have a GA-MA785GM-US2H MB in a comp that is used daily for the same exact purpose -- Video capture using simultaneously two hardware encoding cards. With no changes to routine it has intermittently (odd days) been throwing a temperature alarm while capturing. Using HWMonitor I can see the culprit is TMPIN1 when it reaches 60 degrees. Oddly it does not act like ambient temperatures make a difference as it can happen on cool days while conversely playing nice on warmer days. Forced-air cooling (small personal fan) with the side cover removed will sometimes have a cooling effect and other times little, if any at all.

Since it's difficult to determine HWMonitors sensor association and, assuming it relates to one of the bridge chips, I removed both passive heat sinks in effort to replace the old factory thermal pads with fresh compound. Unfortunately this doesn't seem to have made an appreciable difference in temps.

I'm wondering if I might be looking at the wrong target for the alarm or if the answer might simply be a chip or sensor going bad. I am using integrated graphics but this is nothing new, have been for years on that system. That old Regor 245 and Gigabyte MB have been more than enough for that comps use but it is tempting to Newegg an A4-7300, GA-F2A55M-HD2 and 4Gb of DDR3 for under $100. Hard to believe that is an upgrade but it's definitely way more than needed to serve purpose.

In the meanwhile, if there are any suggestions as to a possible cause for the alarm issue that would be the best (and likely cheapest) solution.

temps2.png
 
Solution
Karadjgne
Tmpin temps are usually cpu, average motherboard and Northbridge, but sometimes you'll see mosfet instead. There's no rhyme or reason to actual numbers, its different for each board but generally the avg. mobo will be lowest, cpu will be somewhere around the lowest core temp and NB will be the hottest. On boards showing mosfet temps they'll be the hottest above NB and cpu.

Looking at the above, there's 7°C difference each time between tmpin1 and tmpin2 so at a guess, I'd say that tmpin0 is the socket temp, tmpin1 is mosfets and tmpin2 is the NB.

As to why the alarm, that's a user setting somewhere, but mosfets can handle 100°C no worries, I'd only be alarmed if the NB reaches @90°C, if tmpin0 is socket or mobo temps, either is...
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golem

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Thanks for your input!

I do have an aftermarket cooler installed. The system is set up for quiet operation thus slow spinning large diameter fans. The HWMonitor attachment in the OP is with both cap cards recording and a 6" fan blowing into an open case. The attachment below was snapped a couple weeks ago at idle having just come down from a capture session, and possibly, a non-transcoding editing process. There was no external cooling source being used at that time.

Should note that as the computer was used throughout the day subsequent to the earlier HWMonitor snap from above and the temperatures remained comfortably in the mid 50s. Nothing changed in terms of workload or environment. I am also unable to find any taxing processes coinciding with the intermittent periods of elevated temperatures.

temps.png


 
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Karadjgne

Karadjgne

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Tmpin temps are usually cpu, average motherboard and Northbridge, but sometimes you'll see mosfet instead. There's no rhyme or reason to actual numbers, its different for each board but generally the avg. mobo will be lowest, cpu will be somewhere around the lowest core temp and NB will be the hottest. On boards showing mosfet temps they'll be the hottest above NB and cpu.

Looking at the above, there's 7°C difference each time between tmpin1 and tmpin2 so at a guess, I'd say that tmpin0 is the socket temp, tmpin1 is mosfets and tmpin2 is the NB.

As to why the alarm, that's a user setting somewhere, but mosfets can handle 100°C no worries, I'd only be alarmed if the NB reaches @90°C, if tmpin0 is socket or mobo temps, either is good.

You state that you have a 6" fan blowing the open side of the case? This'll affect temps. The fan might see slight change in angle, the direct front center of the airflow is usually the weakest area, the most turbulent, so it may just be a case of exactly where the cone is going and if it's being deflected without doing much.

There's also a difference in videos and composition, the video from 2 weeks ago might have been lower resolution or lower pixel and the latest higher, so the cpu will work slightly harder, raising temps slightly.
 
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Solution
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golem

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Much appreciate the reply Karadjgne!

Yeah, no "sweet spot", just doughnut holes on most fans. I really only used the external fan upon sporadic alarm events.

Your insight on TEMPINx along with acceptable component temps is encouraging. I'll happily find the source of alarm and recalibrate or squelch it. Could be BIOS or HWMonitor which provides the monitoring. I do know BIOS alarms on CPU over-temp, not sure what else.

Your mention of possible disparate video resolution being a variable could, in some instances, be an option but not likely in mine. This computer captures the same exact channels at the same hours with the same parameters each day so there should be very little variation in bitrate (workload). Frustrating is this alarm buzzes when I don't expect it and then not when it likely should.

That said, I'll just silence that alarm and if she goes over the edge, well, It'll be time for that legacy upgrade I mentioned earlier. ;)
 
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