Is my PSU really this hot?

hg3300 · Mar 22, 2010

I downloaded SpeedFan to change the speeds of my internal fans, obviously. In particular, this one fan that tends to make a lot of noise when above 50% of its peak speed.

So I'm looking at the temperatures, and I see something over 110 degrees Celsius.
Here is a list of the temps:
GPU: 40C
Temp1: 27C
Temp2: 30C
Temp3: 114C
Core: 31C

Now I did research (through other similar software) and I found out that Temp1=MB, Temp2=CPU, and Temp3=PSU.

My question to you is, how can my PSU be so hot and still run perfectly? The PC is brand new, no dust.

Could there be an error in the software or the temperature monitor thingy is just in a bad place or something? If it's the software, it's more than one b/c they all agree with each other.

CommonTater · Mar 22, 2010

hg3300 said:
I downloaded SpeedFan to change the speeds of my internal fans, obviously. In particular, this one fan that tends to make a lot of noise when above 50% of its peak speed.

So I'm looking at the temperatures, and I see something over 110 degrees Celsius.
Here is a list of the temps:
GPU: 40C
Temp1: 27C
Temp2: 30C
Temp3: 114C
Core: 31C

Now I did research (through other similar software) and I found out that Temp1=MB, Temp2=CPU, and Temp3=PSU.

My question to you is, how can my PSU be so hot and still run perfectly? The PC is brand new, no dust.

Could there be an error in the software or the temperature monitor thingy is just in a bad place or something? If it's the software, it's more than one b/c they all agree with each other.

Ummmm... are you sure there's even a sensor in the Power Supply? Most don't have them. That reads like an open sensor channel to me.

Everlong · Mar 22, 2010

CommonTater is right, and it's probably just a sensor that isn't utilised, but there's still a circuit there.

I've found speedfan to be one of the less accurate programs for reading temps too.

hg3300 · Mar 23, 2010

so what do you think that temp is? it's not a constant temp. it can vary from 99-117

smarteyeball · Mar 23, 2010

Since it's speedfan, it could be almost anything :huh:

I'd check your BIOS to see what temps are monitored there.

Also, put your hand behind the exhaust fan on the PSU and feel how hot the air coming out is. If there is little to no pressure, or is ridiculously hot, double check the PSU fan is actually spinning.

CommonTater · Mar 23, 2010

hg3300 said:
I downloaded SpeedFan

Speedfan is notorious for getting the readings wrong... It will control your fans, but in most cases (no pun intended) there's no reason to do that...

Try double checking the readings with HWMonitor from CPUID...

CPUID

stormy13 · Mar 23, 2010

CommonTater said:
Speedfan is notorious for getting the readings wrong... .

Not so much that it gets them wrong, more that Speedfan reads and reports all the sensors that the sensor chip supports whether there is a sensor attached or not; one reason Speedfan needs to be configured after install.

CommonTater said:
It will control your fans, but in most cases (no pun intended) there's no reason to do that...

This part I can agree with. It made sense at a time when that sort of thing couldn't be controlled any other way than with a fan controller, but most of today's hardware has the ability built in in one way or another (CPU fans in bios, video cards in their respective drivers/control panels).

hg3300 · Mar 24, 2010

CommonTater said:
hg3300 said:

I downloaded SpeedFan

Click to expand...

Try double checking the readings with HWMonitor from CPUID...

CPUID

nope. same temp.

hg3300 · Mar 24, 2010

smarteyeball said:
Since it's speedfan, it could be almost anything :huh:

I'd check your BIOS to see what temps are monitored there.

Also, put your hand behind the exhaust fan on the PSU and feel how hot the air coming out is. If there is little to no pressure, or is ridiculously hot, double check the PSU fan is actually spinning.

Yes, the PSU fan is spinning but there doesn't seem to be much pressure (maybe this could be due to the exhaust fan in the back). My PSU's fan is internal and blows out through the bottom. The model is RS-500-PCAR-A3. The temperature doesn't feel like 100 Celsius. It feels more like 100 Fahrenheit or something.

smarteyeball · Mar 24, 2010

The fact that the fan is spinning and you can feel some pressure is the main thing (rules out the fan being an issue)

100F sounds more likely.

As for whatever that sensor reading is, there is nothing to indicate that PSU has any temp monitoring whatsoever.

Whatever it's supposed to be, I highly doubt it's accurate.

CGA1 · Mar 24, 2010

Download a trial of Everest and check your temps. This is the only software I've come across that presents the sensor reading sources in plain English.

hg3300 · Mar 24, 2010

CGA1 said:
Download a trial of Everest and check your temps. This is the only software I've come across that presents the sensor reading sources in plain English.

Here's what I got.
Motherboard: 105C
CPU: 28C
CPU #1/Core #1-4: 35C
MCP: 52C
Aux: 29C (WTF is Aux?)

That don't seem right either.

The CPU is right. The aux might be one of the hard drives. But the other temp sensors I downloaded completely disagree with the MB temp. According to most, this is the CPU temp, not the MB temp, which is under 30C.

smarteyeball · Mar 24, 2010

In a nutshell, there is something wrong with that sensor. It's easily 50c+ off what it should be. Most 'Motherboard' (the one that says motherboard in Everest) sensor readings are ambient based, so if it were truly that temp you'd notice it reflected on the other components.

Does Everest detect what motherboard / sensor type correctly ?

Aux could be your HDD, although why it's not detected as that could be because Everest is unsure of the motherboard type, or it's because it's a trial version. When the full version knows the mobo type + devices, it shows them correctly:

So either the BIOS needs to be updated (If it's a BIOS bug that has been fixed), or the sensor itself is a little 'stuffed'.

stormy13 · Mar 24, 2010

Something is definitely amiss there, if nothing else it shouldn't matter what monitoring program you use but you should be getting 4 core temps and one CPU temp with that x4. You are only getting one core temp and the CPU temp (which should be the socket temp). You should be getting something like this,

After installing Windows did you update the motherboard drivers or is it just running with the default drivers that Windows installed? If it is the default get the latest here,

NVIDIA DRIVERS 15.49 WHQL

Make sure to do a custom install as you don't need (or want) the following,

Network Management Tools (v73.16) "Sedona"
GPU Driver (v190.38) WHQL
Away Mode Driver (v6.0.6000.114) WHQL
Physx (v9.09.0428)

The IDE, RAID and RAIDTOOL I'll leave up to you based on how you have your drives configured and whether you want them or not.

smarteyeball said:
Aux could be your HDD, although why it's not detected as that could be because Everest is unsure of the motherboard type, or it's because it's a trial version. When the full version knows the mobo type + devices, it shows them correctly:

Nope. The only difference between the trial and full versions of Everest is some of the readings/info show will have no value but show "Trial Version" instead (can be a pain with temperature readings when it shows up there).

hg3300 · Mar 24, 2010

stormy13 said:
Something is definitely amiss there, if nothing else it shouldn't matter what monitoring program you use but you should be getting 4 core temps and one CPU temp with that x4. You are only getting one core temp and the CPU temp (which should be the socket temp). You should be getting something like this,

View attachment 62900

After installing Windows did you update the motherboard drivers or is it just running with the default drivers that Windows installed? If it is the default get the latest here,

NVIDIA DRIVERS 15.49 WHQL

Make sure to do a custom install as you don't need (or want) the following,

Network Management Tools (v73.16) "Sedona"
GPU Driver (v190.38) WHQL
Away Mode Driver (v6.0.6000.114) WHQL
Physx (v9.09.0428)

The IDE, RAID and RAIDTOOL I'll leave up to you based on how you have your drives configured and whether you want them or not.

smarteyeball said:

Aux could be your HDD, although why it's not detected as that could be because Everest is unsure of the motherboard type, or it's because it's a trial version. When the full version knows the mobo type + devices, it shows them correctly:

Click to expand...

Nope. The only difference between the trial and full versions of Everest is some of the readings/info show will have no value but show "Trial Version" instead (can be a pain with temperature readings when it shows up there).

I am getting 4 core temps, they're all the same so I just consolidated the posting.

Layback Bear · Mar 27, 2010

Hi folks. What I use to read temps is a infrared thermometer with a little red dot. I have been on line since before daylight and my power supply is 23.9 deg c the fan blowing out is at 22.5 deg c. The little red dot doesn't know how to lie. You can use it to check temps of many things in a PC and compare them with what ever program you are using.

rocketscience10 · Apr 12, 2010

Well, if that's the result, then maybe. OR it's another marketing ploy. Hey who knows? My bet is, use trusted devices and if you're good at making estimates, try to estimate the temp of your CPU and then compare it with a device's results. Could help

helmutcheese · Apr 12, 2010

SpeedFan does not get it wrong, it simply reads all sensors.

You need to compare then with say Everest and rename them

I have never seen a power supply that tells you temps, though on a very old Mobo seen the socket for one such temp lead from a PSU.

If you see "POWER" or "PWR" in any temps readings it is the voltage mosfet's not the PSU.

Is my PSU really this hot?

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