Processor Overheating

Discussion of all forms of processors, from AMD to Intel to VIA.

Moderators: Flying Fox, morphine

Processor Overheating

Postposted on Fri Nov 02, 2012 9:05 pm

Hey guys,
I recently built my first computer using Tech Report's system guide. Here is my build:

Motherboard: ASUS P8Z77-V LK
Processor: Intel Core i5-3570K
Storage: SAMSUNG 830 Series
Western Digital Black 1TB
Memory: CORSAIR Vengeance 8GB
Video Card: GeForce GTX 670
Case: Corsair Obsidian 650D
Power Supply: Corsair HX650W
Aftermarket Cooling: COOLER MASTER Hyper 212 120mm Fan

No major problems so far, and all of my games are running very smoothly. However, whenever I am gaming, I am having trouble with my processor getting too hot (70 Deg C, that should be considered too hot correct?), while the rest of my system stays very cool (graphics card never breaks 40 deg C). I know the processor typically is one of the hottest items on a computer, but with my aftermarket cooling I thought it would be lower than that. Sometimes I feel the need to lower the graphics not because it is straining my graphics card or hiccuping, but because my CPU is getting too hot. I should mention that while idling it is at standard 30ish deg C temperatures.

I have my aftermarket fan on top of it, oriented to blow out the back grating, with Arctic Silver thermal paste beneath it. I applied just enough to cover the surface and tried to get all air bubbles out. Am I blowing this problem out of proportion or do I have something incorrectly wired? I don't want to shorten the life of my processor significantly right out of the box.
DDVX
Gerbil In Training
 
Posts: 5
Joined: Fri Nov 02, 2012 8:52 pm

Re: Processor Overheating

Postposted on Fri Nov 02, 2012 9:15 pm

That does seem a bit high given the TDP of that CPU and the aftermarket cooler you are using.

Does the fan speed ramp up as expected when the CPU starts to heat up? Maybe the solution is as simple as tweaking the fan control settings in the BIOS.
(this space intentionally left blank)
just brew it!
Administrator
Gold subscriber
 
 
Posts: 38088
Joined: Tue Aug 20, 2002 10:51 pm
Location: Somewhere, having a beer

Re: Processor Overheating

Postposted on Fri Nov 02, 2012 9:25 pm

The Chassis fans that I have connected definitely speed up. I have them set on Turbo in the BIOS and watch their speeds with CPUID. I'm not sure how to tell if the actual Coolermaster CPU fan speeds up. I also feel the air coming out of the computer and it is typically very cool.
DDVX
Gerbil In Training
 
Posts: 5
Joined: Fri Nov 02, 2012 8:52 pm

Re: Processor Overheating

Postposted on Fri Nov 02, 2012 9:32 pm

DDVX wrote:The Chassis fans that I have connected definitely speed up. I have them set on Turbo in the BIOS and watch their speeds with CPUID. I'm not sure how to tell if the actual Coolermaster CPU fan speeds up. I also feel the air coming out of the computer and it is typically very cool.

OK, so you've got decent case airflow then.

You don't have fan speed monitoring software installed for the CPU fan? You may want to try downloading a copy of SpeedFan...
(this space intentionally left blank)
just brew it!
Administrator
Gold subscriber
 
 
Posts: 38088
Joined: Tue Aug 20, 2002 10:51 pm
Location: Somewhere, having a beer

Re: Processor Overheating

Postposted on Fri Nov 02, 2012 10:01 pm

Thanks for the tip. I've attached a screenshot of CPUID and Speedfan side by side. I notice two things.

1) CPUID is consistently showing 10 Deg C higher than SpeedFan.
2) CPUID also shows significantly higher fan speeds for the chassis fans.

I have MS afterburner, my BIOS, and now Speedfan. How do I know which one has priority? By the way, I have a game running in the background, which is why the temps are a little higher.

EDIT: However, now that I have been playing Borderlands for a few, I can see that my graphics card is getting up to 51, which I wouldn't expect would be too ridiculously high but still higher than I thought.

Image
DDVX
Gerbil In Training
 
Posts: 5
Joined: Fri Nov 02, 2012 8:52 pm

Re: Processor Overheating

Postposted on Sat Nov 03, 2012 6:59 am

I've also had experience with Intel chips running a bit too hot, given their low TDPs (65w). The CPUs in question are a Core i3-2100 and an i3-2120, both of which I built this year. Both are around 60C at IDLE (!), and at load they get higher than that. These aren't my computers so I really can't remember, but compared to my Phenom II (which has a 125w TDP), the i3 chips seemed a bit too hot. My Phenom II idles a around 32C and goes up to around 48C at load, so I don't know whether Intel simply bundles crappy coolers with their CPUs or Intel's thermal characteristics are hyped all the way up. Take note that my AMD PC doesn't have anything too fancy to cool it: just 2 fans blowing air out of the case and the stock CPU heatsink. Perhaps your best bet is to first make sure the CPU cooler is seated properly. If that doesn't work, perhaps you should get a better cooler and see how it works out.
As you get older, you don't lose your friends.. you just find out who the real ones are.
ronch
Gerbil Elite
 
Posts: 678
Joined: Mon Apr 06, 2009 7:55 am
Location: Earth, probably same as you.

Re: Processor Overheating

Postposted on Sat Nov 03, 2012 7:25 am

Check to see if your heatsink is making good contact with the cpu by looking at the paste spread pattern. Also make sure your CPU cooler fan is connected to the correct fan header......and physically feel the heatsink for looseness and temperature when it states it is at 70 c . The heatsink should be very warm if not hot to the touch.

I have 2 i3 2120 series chips and 60c at idle is way way too high. Both of mine with avc coolers"basically a slightly bigger intel cooler with a built on cpu intake tube" They both idle at 30c and at load do not even come near 60c they top off at 50 max and that is with the fans at 1200-1400rpms...they max around 5500 rpms and make a heck of a racket.
I personally have not tried a push pin intel cooler on my pcs since they were both prebuilt with the heatsinks i currently have. I do have a intel cooler that came with my i3 2125 cpu and comparison it is slightly lighter them my current coolers. Plus my current coolers screw down.
2600k HT on@4705mhz 8gb Cas9 1600 mem 2x EVGA GTX770 4gb Classified cards in SLI @1320 mhz core and 2003 mhz mem,mounted in CM HAF922 with a TX-850 PSU 2xHTPC's 2xi3 2120 3.3ghz dual core,1xasus LP HD6570 1xHIS hd7750@1150core1325mem,55"PanyVT30
vargis14
Graphmaster Gerbil
 
Posts: 1323
Joined: Fri Aug 20, 2010 6:03 pm
Location: philly suburbs

Re: Processor Overheating

Postposted on Sat Nov 03, 2012 8:42 am

Just to make sure on this, you say "I have my aftermarket fan on top of it, oriented to blow out the back grating," Is the fan on the CPU heatsink oriented to push air into the heatsink fins, or pull air through them? It should be placed and oriented to push air into the heatsink fins and then out the back of the case.
MadManOriginal
Graphmaster Gerbil
 
Posts: 1463
Joined: Wed Jan 30, 2002 7:00 pm
Location: In my head...

Re: Processor Overheating

Postposted on Sat Nov 03, 2012 9:10 am

Watch this:
http://www.youtube.com/watch?v=hSq_xbxsm7Q
or other installation videos and redo the installation. If you are running at stock speed then 70 degrees Celsius while gaming with a CM 212 is def too high. Hope you didn't forget to take the plastic cover off or something. Maybe it left some glue or w/e

Direct heat transfer pipes need usually a bit more thermal interface material to close the gaps, watch a few videos on what is the most efficient application method for that kind of heatsink.
Last edited by Arclight on Mon Nov 05, 2012 1:47 am, edited 1 time in total.
nVidia video drivers FAIL, click for more info
Disclaimer: All answers and suggestions are provided by an enthusiastic amateur and are therefore without warranty either explicit or implicit. Basically you use my suggestions at your own risk.
Arclight
Gerbil Elite
 
Posts: 706
Joined: Tue Feb 01, 2011 3:50 am

Re: Processor Overheating

Postposted on Sat Nov 03, 2012 10:02 am

ronch wrote:... If that doesn't work, perhaps you should get a better cooler and see how it works out.

He's got a pretty good one already.
(this space intentionally left blank)
just brew it!
Administrator
Gold subscriber
 
 
Posts: 38088
Joined: Tue Aug 20, 2002 10:51 pm
Location: Somewhere, having a beer

Re: Processor Overheating

Postposted on Sat Nov 03, 2012 10:25 am

Hope its not the old thermal paste plastic cover that ships on the underside of the HSF still in place :wink:
Intel i5 2500K@4.3, Gigabyte Z68XP-UD3-iSSD, Powercolor 7970 3GB, 2GB Hitachi HDD, Thermaltake Level 10 GT Snow Ed, Corsair H80, Win 7 Pro
Walkintarget
Gerbil Team Leader
 
Posts: 240
Joined: Tue Jan 29, 2008 10:15 am

Re: Processor Overheating

Postposted on Sat Nov 03, 2012 4:55 pm

+1 make sure you took the clear plastic film off the bottom of the heatsink. It's on there to prevent the base from getting scratched, but you DEFINETLY need to remove it before placing it on top of your CPU.

The GPU is usually the hottest component. Depending on the cooler, 70C or above isn't unheard of under load.
Main: i5-3570K, ASRock Z77 Pro4-M, Asus GTX660 TOP, 120 GB Vertex 3 Max IOPS, 2 TB Samsung EcoGreen F4, 8GB 1600MHz G.Skill @1.25V, Silverstone PS07B
HTPC: A8-5600K, MSI FM2-A75IA-E53, 4TB Samsung SSHD, 8GB 1866MHz G.Skill, Hand-Built Wood Case
DPete27
Gerbil Jedi
Silver subscriber
 
 
Posts: 1732
Joined: Wed Jan 26, 2011 12:50 pm
Location: Madison, Wisconsin

Re: Processor Overheating

Postposted on Mon Nov 05, 2012 1:00 am

Hey guys, just got back around to checking the thread again. To be clear, my heatsink fan sucks open air from within the case through the heatsink and then out the back, as you said it should be. I did remove and reapply the thermal paste on the processor itself, but I'll check the bottom of the heatsink for plastic, as i don't remember taking any off (but I also inspected it before I installed it and don't remember there being any). I also will do a skin test under load to make sure the heatsink is actually absorbing the heat (and also will check the seating on top of the processor). I also double checked that my CPU fan is correctly connected to my motherboard CPU fan slot. I'll repeat back what I find from your suggestions. Thank all of you!

EDIT: I took off the Cooler Master this morning and the plastic was not on. I checked the video you guys linked to make sure I was installing it correctly and reattached it afterwards, making sure it was lined up with enough paste but not too much. The only thing I have left to do is to get it really hot again and feel the heatsink with my fan. Not sure what else to do. I have speedfan, MS afterburner, CPUID, and my BIOS all monitoring and setting fan speeds so I feel like I might get some interference between programs. The only other thing I can think of is to just manually set really high fan speeds to combat it.

EDIT 2: Also, how hot should I expect the heatsink to be? I upped the heat to around 55 Deg C for a couple minutes and it was not noticeably warm.
DDVX
Gerbil In Training
 
Posts: 5
Joined: Fri Nov 02, 2012 8:52 pm

Re: Processor Overheating

Postposted on Mon Nov 05, 2012 10:45 pm

I reapplied thermal paste after looking more into it and applied less than I previously had. Since then, my average CPU temperature under heavy load is 50 Deg C, which is obviously much better. I didn't think I had been applying it too thick but apparently I was wrong. From what I can tell this is a reasonable temperature to play at without long term negative effects. Please tell me if I am wrong! And thank you everyone for the help.
DDVX
Gerbil In Training
 
Posts: 5
Joined: Fri Nov 02, 2012 8:52 pm

Re: Processor Overheating

Postposted on Tue Nov 06, 2012 1:32 am

50 degrees Celsius is pretty good under load, the 3570K Tcase is 67.4°C. If you want to improve it even more check out reviews for various thermal interface materials, there are some out there that can make a real difference (but not huge, 5 degrees is about as much as you could gain if you started off with a generic TIM, but that's still a good gain).

Also look into undervolting articles for that chip since it seems that it is able to undervolt a overclock a little at the same time.
nVidia video drivers FAIL, click for more info
Disclaimer: All answers and suggestions are provided by an enthusiastic amateur and are therefore without warranty either explicit or implicit. Basically you use my suggestions at your own risk.
Arclight
Gerbil Elite
 
Posts: 706
Joined: Tue Feb 01, 2011 3:50 am

Re: Processor Overheating

Postposted on Tue Nov 06, 2012 8:25 am

DDVX wrote:I reapplied thermal paste after looking more into it and applied less than I previously had. Since then, my average CPU temperature under heavy load is 50 Deg C, which is obviously much better. I didn't think I had been applying it too thick but apparently I was wrong. From what I can tell this is a reasonable temperature to play at without long term negative effects. Please tell me if I am wrong! And thank you everyone for the help.

Q: How much thermal past should I use?

A: You should almost make out the CPU lettering under it.
There is a fixed amount of intelligence on the planet, and the population keeps growing :(
morphine
Grand Admiral Gerbil
Silver subscriber
 
 
Posts: 10090
Joined: Fri Dec 27, 2002 8:51 pm
Location: Portugal (that's next to Spain)


Return to Processors

Who is online

Users browsing this forum: Exabot [Bot] and 4 guests