CPU temps way too high, and wildly inconsistent

Toggle sidebar Toggle sidebar
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960
I installed an i3-4360 a couple days ago, but just thought to check temperatures today. They're not good, but thankfully I haven't been using my PC much, so damage should still be negligible. I still need to figure out what's going on and get it fixed before I do anything else though.

HW Monitor puts my CPU at about 30c on idle, which sounds about right. However, Speedfan puts my CPU at 15c on idle, which is obviously wrong as it's way below room temperature. Speccy is putting my CPU temperature at 35 idle.

Additionally, HW Monitor is putting my motherboard at a constant 118c, but it's obviously not that hot, because it's locked at 118c no matter how long or short the PC runs, at any load, and 118c should be crashing the PC. Also, the motherboard temperature is 20c in the BIOS.

When I run Prime 95, my CPU temperatures on Speccy, Speedfan, and HW Monitor all go up to 90-100c in only 2-3 seconds, which is clearly unsafe and would damage the CPU if I left it run like that.

It's worth mentioning I only ever feel cool air coming from my PC, but I'm not going to leave it running under load for long enough to actually let the whole thing heat up, if the temperatures are really that high.

Any ideas what this could be? I'm using an NZXT Respire T20 cooler, which people online said would work with the LGA 1150 socket, though it's a discontinued model and doesn't officially list LGA 1150 compatibility. I'd assume it was the problem, but It fits firmly though and covers the CPU, so I don't see how that could really be the issue. I'm using about the same amount of thermal compound I was on my Phenom II, and that stayed always between 30-45c.

I intend to test the stock cooler right now and see if that normalizes the temperatures. I'll post the results back here. Until then, any ideas?
 
Sort by date Sort by votes
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960


Well, temps are normal until I stress test, so posting from the BIOS wouldn't help anything. But I'll download HWInfo and try that.
 
Upvote 0 Downvote
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960
I ran HW INFO. It's putting me at 33c idle and 80c after a few seconds of Prime95. I'll post the CPU package results as soon as I figure out how to do that? Do I hit the start logging button and post whatever's in that document it creates, or is it something else?

Also, switching to the stock cooler delayed the heat-up by a few seconds, but did not fix it, so I guess the Respire T20 wasn't to blame.
 
Upvote 0 Downvote
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960


I use an Asus H97-Plus, so it should. Probably. I haven't been in the bios much, really just to find the C6/C7 sleep states.
http://www.newegg.com/Product/Product.aspx?Item=N82E16813132121

You probably posted before I edited my other post. I tried the stock cooler, and it helped a bit but it still gets up to just as high of temperatures in a few extra seconds.

I should mention - I may have locked down the Respire T20 too tightly the first time I put it on. Could that have damaged anything in such a way it would cause the temperature to do this, or if it had been damaged by pressure would my PC simply refuse to start?
 
Upvote 0 Downvote
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960


Well, I can enter the UEFI bios. Not sure how it'll help though. I reset the BIOS to defaults in case something got changed, and the temps are behaving exactly the same afterwards.

According to HW Info, CPU fan RPM is at 1200.
Not sure about Vcore, the closest I can find is VCOREREFIN, and that's at 0.152v. Is vcore something else, and where can I find it? Thanks for all the help.
 
Upvote 0 Downvote
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960


Would the "Nuvoton NCT6791D" be the motherboard sensor(s), or am I looking in the wrong place.
Hello, by the way. :s Hopefully we can fix this, or at least confirm what's broken.
 
Upvote 0 Downvote
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960


During a stress test, or while idling? Sure, I'll make a Tinypic account.

Also, I'm not sure if it matters since I'm still not sure what the Nuvoton thing is, other than that a quick Google search talks about motherboard sensors. But the HW Info section under Nuvoton NCT6791D, in the CPU section, reached 37c at the same time all the other CPU temps were hitting 90c.
 
Upvote 0 Downvote
LucoTF

LucoTF

Splendid
Sep 6, 2013
6,414
1
27,960


It's really unlikely that you can jump 70 degrees in 5 seconds with a correctly applied cooler. Sounds like a false reading or dodgy sensor.

do you have other sensors (i.e. CPU socket temps) that rise and fall more steadily under load tests? Look under nuvoton, that's the brand of sensor that your mobo uses. I'm with i7baby, a screeny of HWinfo 'sensors only' would be good.
 
Upvote 0 Downvote
LucoTF

LucoTF

Splendid
Sep 6, 2013
6,414
1
27,960


The one marked 'CPU' under nuvoton is probably your socket temp, especially as you said it's rising and falling steadily. It's also in line with what I'd expect from a mere 54w processor. Also, your CPU is not throttling in that prime95 pic.
 
Upvote 0 Downvote
I

i7Baby

Titan
BANNED
Jul 25, 2012
44,084
2
106,960
Both screens show your cpu at 100% usage and 88C - with or without Prime95

Nuvoton is at 25-37C which is OK. The nuvoTon NCT 6791D chip provides the super I/O functions, such as fan control and system monitoring

So I don't think either of your coolers are working - which seems incredible. The Respire - maybe a problem, but the stock cooler too? Seems too much of a coincidence.

The alternative is that the 88C is false.

Are there any symptoms of an overheated cpu? Does your pc seem sluggish? It looks like your cpu fan is speeding up. So my guess is that the coolers are not doing their job.

I think you need to get a cooler that definitely specifies lga1150. Something like the CoolerMaster Hyper 412 Slim. For an i3, it should be overkill. It's 160mm high. Will it fit in your case?

Do you have another cooler in mind?
 
Upvote 0 Downvote
I

i7Baby

Titan
BANNED
Jul 25, 2012
44,084
2
106,960


It's worth trying. Maybe use his cpu cooler too.
 
Upvote 0 Downvote
LucoTF

LucoTF

Splendid
Sep 6, 2013
6,414
1
27,960


I considered this too (problem with cooler or cooler fan) - but yeah the swap from the T20 to stock kinda blows it (no pun intended)
 
Upvote 0 Downvote
Rationale

Rationale

Admirable
Mar 21, 2014
3,025
0
7,960


Would it be safer to test my i3 in his mobo and see if it overheats, or to test his i5 in my mobo? Or both?
I'm pretty sure he'll allow it either way, as long as it's reasonably safe, but I don't want to risk my defective motherboard (if, in fact, the board is defective somehow) damaging his i5 or anything.

I mean, it seems like the options are either my i3 is defective and it's getting really hot, or my mobo temp sensors are defective and are making it look hot. Or, I somehow got 2 defective coolers in a row. I should probably test the CPU and board.

I'm not sure whether it's sluggish... I'm used to an AMD Phenom II 955, which was very slow, and it's better than that. But I've no way of knowing if it's operating at the levels an i3-4360 is supposed to in overall system responsiveness. I suppose I should run a benchmark and see how those scores line up to what a 4360 is supposed to get.

I don't really have a cooler in mind. My case is a reasonably large mid-tower (NZXT Phantom 410), so I'm not worried about space. I'll check the Hyper 412 Slim.
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom