Personal computing discussed

Moderators: renee, Starfalcon

 
ALIAS
Gerbil Elite
Topic Author
Posts: 682
Joined: Sun Feb 15, 2004 5:59 pm
Location: Texas

CPU temps for i7-4770k?

Thu Jun 27, 2013 7:20 pm

I finally got my i7-4770k upgrade installed with an ASRock Extreme6 board. I was able to use my Cooler Master Hyper 212 Plus HSF (with push and pull fan setup) with the Haswell chip. I set up the computer to take advantage of all power saving methods it can via the UEFI so no manual overclocking at all so far. Im getting idle temp readings at around 29 C using Core Temp. I ran Prime95 for a couple of minutes and the CPU temp went up to 72 C immediately. Is this on par with what some of you other guys are getting?
i7-4770k, ASRock Z87 Extreme6, Radeon R9 270, 16 GB G.Skill Ares DDR3-2133, Creative SB Z, OCZ Vertex 460 240 GB SSD, 2x 1TB WD Black HDD, Windows 10 Pro
 
chuckula
Minister of Gerbil Affairs
Posts: 2109
Joined: Wed Jan 23, 2008 9:18 pm
Location: Probably where I don't belong.

Re: CPU temps for i7-4770k?

Thu Jun 27, 2013 7:23 pm

Don't get freaked out by those temperatures. I'm OC'd to 4.7GHz and my hottest core can hover just below 85C during the worst parts of the Linpack torture test (mprime is a little cooler in the low 80's). The chips are stable in that temperature range, although I wouldn't go out of my way to run them that way 24/7 either. If your experience is similar to mine, you'll see that the chip idles at much much lower temperatures too.


Coming from a Core 2 Duo where the chip would idle in the mid-40 C range but only get up to about 65C under high load, it's a change, but it works OK for me.
4770K @ 4.7 GHz; 32GB DDR3-2133; Officially RX-560... that's right AMD you shills!; 512GB 840 Pro (2x); Fractal Define XL-R2; NZXT Kraken-X60
--Many thanks to the TR Forum for advice in getting it built.
 
JustAnEngineer
Gerbil God
Posts: 19673
Joined: Sat Jan 26, 2002 7:00 pm
Location: The Heart of Dixie

Re: CPU temps for i7-4770k?

Thu Jun 27, 2013 8:31 pm

Mine runs at 55°C to 57°C running Prime95 with 2 CPU fans and 1 chassis fan on high (even after 45 minutes). With my normal noise-optimized fan profile, it runs closer to 70°C.
· R7-5800X, Liquid Freezer II 280, RoG Strix X570-E, 64GiB PC4-28800, Suprim Liquid RTX4090, 2TB SX8200Pro +4TB S860 +NAS, Define 7 Compact, Super Flower SF-1000F14TP, S3220DGF +32UD99, FC900R OE, DeathAdder2
 
End User
Minister of Gerbil Affairs
Posts: 2977
Joined: Fri Apr 16, 2004 6:47 pm
Location: Upper Canada

Re: CPU temps for i7-4770k?

Thu Jun 27, 2013 9:50 pm

JustAnEngineer wrote:
Mine runs at 55°C to 57°C running Prime95 with 2 CPU fans and 1 chassis fan on high (even after 45 minutes). With my normal noise-optimized fan profile, it runs closer to 70°C.

OC'ed?
 
keltor
Gerbil First Class
Posts: 180
Joined: Thu May 10, 2012 4:29 pm

Re: CPU temps for i7-4770k?

Thu Jun 27, 2013 11:19 pm

Overclocked 4770k @ 4.9Ghz using watercooling (ok it's not actually water but antifreeze.) - run to a fridge unit.

I am stable at 36C max running the cpu at 100% during a Linpack torture test. Idle is 15C. Room is between 23 and 22C. I'm pretty damn happy with it.
 
End User
Minister of Gerbil Affairs
Posts: 2977
Joined: Fri Apr 16, 2004 6:47 pm
Location: Upper Canada

Re: CPU temps for i7-4770k?

Fri Jun 28, 2013 12:34 am

keltor wrote:
Overclocked 4770k @ 4.9Ghz using watercooling (ok it's not actually water but antifreeze.) - run to a fridge unit.

I am stable at 36C max running the cpu at 100% during a Linpack torture test. Idle is 15C. Room is between 23 and 22C. I'm pretty damn happy with it.

Those temps are impressive. Why the need for that much cooling?
 
kmieciu
Gerbil
Posts: 17
Joined: Wed Sep 17, 2008 3:46 am
Location: Gdańsk, Poland

Re: CPU temps for i7-4770k?

Fri Jun 28, 2013 3:58 am

I have i5-4670 at stock speed with stock cooler and it runs with exactly the same temps as yours - 29 to 72 C.
i5-4670 | AsRock B85M Pro4 | 8 GB DDR3 1600 CL9 | 128 GB SSD + 2x 160 GB HDD RAID 1 + 1.5 TB HDD | Gentoo Linux
 
chuckula
Minister of Gerbil Affairs
Posts: 2109
Joined: Wed Jan 23, 2008 9:18 pm
Location: Probably where I don't belong.

Re: CPU temps for i7-4770k?

Fri Jun 28, 2013 6:59 am

keltor wrote:
Overclocked 4770k @ 4.9Ghz using watercooling (ok it's not actually water but antifreeze.) - run to a fridge unit.

I am stable at 36C max running the cpu at 100% during a Linpack torture test. Idle is 15C. Room is between 23 and 22C. I'm pretty damn happy with it.



I bow to your refrigerated machine! It has amazing performance, temperatures, and doubles as a beer cooler! 8)
4770K @ 4.7 GHz; 32GB DDR3-2133; Officially RX-560... that's right AMD you shills!; 512GB 840 Pro (2x); Fractal Define XL-R2; NZXT Kraken-X60
--Many thanks to the TR Forum for advice in getting it built.
 
MadManOriginal
Gerbil Jedi
Posts: 1533
Joined: Wed Jan 30, 2002 7:00 pm
Location: In my head...

Re: CPU temps for i7-4770k?

Fri Jun 28, 2013 7:37 am

OP - I am guessing you have PWM or other motherboard-controlled fans on your cooler? The CPU is just heating up to its standard thermal envelope before the fans start increasing in speed is all. If you want to see, go into BIOS and set the CPU fans to permanent 100%, not 'auto', and your temps should be lower.
 
JustAnEngineer
Gerbil God
Posts: 19673
Joined: Sat Jan 26, 2002 7:00 pm
Location: The Heart of Dixie

Re: CPU temps for i7-4770k?

Fri Jun 28, 2013 7:47 am

I tweaked the fan profile to spin up my chassis fan a bit more aggressively so now I get around 60°C in Prime95 (without overclocking) and I still get a very quiet system (fans at 270-300 rpm) when just browsing the web.
· R7-5800X, Liquid Freezer II 280, RoG Strix X570-E, 64GiB PC4-28800, Suprim Liquid RTX4090, 2TB SX8200Pro +4TB S860 +NAS, Define 7 Compact, Super Flower SF-1000F14TP, S3220DGF +32UD99, FC900R OE, DeathAdder2
 
morphine
TR Staff
Posts: 11600
Joined: Fri Dec 27, 2002 8:51 pm
Location: Portugal (that's next to Spain)

Re: CPU temps for i7-4770k?

Wed Jul 17, 2013 5:12 pm

Topic moved to OC/Cooling forum.
There is a fixed amount of intelligence on the planet, and the population keeps growing :(
 
sparkman
Gerbil First Class
Posts: 119
Joined: Mon May 12, 2003 8:36 am
Location: San Francisco, CA

Re: CPU temps for i7-4770k?

Sat Sep 07, 2013 11:04 am

Can you help me understand the i7-4770K temperatures I'm seeing?

For example, I just ran Prime95 (Small FFT's Torture Test) and the Asus Probe II Sense app reported 79°C for the CPU and 31°C for the motherboard (an Asus Z87-A, stock cooling, no overclocks).

79°C sounds like a normal CPU temperature to me, but the official Intel specs only mention temperature to say that the TCASE max temperature is 72.72°C.

TCASE is defined as: "Case Temperature is the maximum temperature allowed at the processor Integrated Heat Spreader (IHS)."

Is the Prime95 temperature of 79°C likely to damage my CPU?
Intel i7-4770K, Corsair 16 GB DDR3 1333, MSI GeForce GTX 770, Samsung SSD 840 Pro 512 GB, WD Black HDD 1 TB, Asus Z87-A, Corsair HX850, Hyper 212 EVO, Corsair Carbide 200R
 
JohnC
Gerbil Jedi
Posts: 1924
Joined: Fri Jan 28, 2011 2:08 pm
Location: NY/NJ/FL

Re: CPU temps for i7-4770k?

Sat Sep 07, 2013 11:18 am

No.
Gifter of Nvidia Titans and countless Twitch donation extraordinaire, nothing makes me more happy in life than randomly helping random people
 
sparkman
Gerbil First Class
Posts: 119
Joined: Mon May 12, 2003 8:36 am
Location: San Francisco, CA

Re: CPU temps for i7-4770k?

Sat Sep 07, 2013 11:28 am

OK but what temperature can damage my CPU? Or do modern CPU's do fancy throttling to make temperature damage impossible?
Intel i7-4770K, Corsair 16 GB DDR3 1333, MSI GeForce GTX 770, Samsung SSD 840 Pro 512 GB, WD Black HDD 1 TB, Asus Z87-A, Corsair HX850, Hyper 212 EVO, Corsair Carbide 200R
 
JohnC
Gerbil Jedi
Posts: 1924
Joined: Fri Jan 28, 2011 2:08 pm
Location: NY/NJ/FL

Re: CPU temps for i7-4770k?

Sat Sep 07, 2013 12:28 pm

sparkman wrote:
Or do modern CPU's do fancy throttling to make temperature damage impossible?

Yes. At the very worst your PC will simply reboot itself.
Gifter of Nvidia Titans and countless Twitch donation extraordinaire, nothing makes me more happy in life than randomly helping random people
 
morphine
TR Staff
Posts: 11600
Joined: Fri Dec 27, 2002 8:51 pm
Location: Portugal (that's next to Spain)

Re: CPU temps for i7-4770k?

Sat Sep 07, 2013 12:47 pm

JohnC wrote:
sparkman wrote:
Or do modern CPU's do fancy throttling to make temperature damage impossible?

Yes. At the very worst your PC will simply reboot itself.

If it happens once or twice then it's not a problem.

However, sparkman, keep in mind that even though the CPU protects itself, it's still running hot and will die sooner rather than later. And if that doesn't happen, then the motherboard goes because it's also subject to a lot of heat around the CPU area.
There is a fixed amount of intelligence on the planet, and the population keeps growing :(
 
sparkman
Gerbil First Class
Posts: 119
Joined: Mon May 12, 2003 8:36 am
Location: San Francisco, CA

Re: CPU temps for i7-4770k?

Sun Sep 29, 2013 12:16 pm

I upgraded my 4770K from the stock heatsink to a Hyper 212 EVO.

The same Prime95 (Small FFT's Torture Test) as above now peaks at 52°C. If I add Unigine Valley on top of Prime95, the CPU gets up to 59°C. All of this with only a quiet whirring from the three fans in the case (2 case fans, 1 fan on the Hyper 212 EVO).

Sweet. I love this build! The quietest, fastest, screamer of a gaming PC I've ever owned.

The GTX 770 GPU got up to 77°C during the Prime95+Unigine Valley benchmark. I have two more case fans on order to improve total airflow and hopefully bring that 77 down.
Intel i7-4770K, Corsair 16 GB DDR3 1333, MSI GeForce GTX 770, Samsung SSD 840 Pro 512 GB, WD Black HDD 1 TB, Asus Z87-A, Corsair HX850, Hyper 212 EVO, Corsair Carbide 200R
 
Waco
Maximum Gerbil
Posts: 4850
Joined: Tue Jan 20, 2009 4:14 pm
Location: Los Alamos, NM

Re: CPU temps for i7-4770k?

Sun Sep 29, 2013 4:31 pm

With the automatic throttling built into modern chips it's nearly impossible to actually damage them from heat without really trying.

A 4770K will throttle aggressively once it hits 100 C; anything below that and it'll happily run all day.
Victory requires no explanation. Defeat allows none.
 
morphine
TR Staff
Posts: 11600
Joined: Fri Dec 27, 2002 8:51 pm
Location: Portugal (that's next to Spain)

Re: CPU temps for i7-4770k?

Sun Sep 29, 2013 6:30 pm

Waco wrote:
With the automatic throttling built into modern chips it's nearly impossible to actually damage them from heat without really trying.

Keep in mind that even if it's not throttling, when running very hot it will heat up the area around the CPU socket, damaging VRMs and other power circuitry, the board and socket itself, etc.

Also, the lifetime of the CPU will probably be severely diminished.
There is a fixed amount of intelligence on the planet, and the population keeps growing :(
 
Waco
Maximum Gerbil
Posts: 4850
Joined: Tue Jan 20, 2009 4:14 pm
Location: Los Alamos, NM

Re: CPU temps for i7-4770k?

Mon Sep 30, 2013 8:52 am

morphine wrote:
Keep in mind that even if it's not throttling, when running very hot it will heat up the area around the CPU socket, damaging VRMs and other power circuitry, the board and socket itself, etc.

Also, the lifetime of the CPU will probably be severely diminished.

I doubt the heat from a 4770K running in the 90s is enough to damage anything at all especially since the VRMs on the motherboard will run up past that temperature with ease. In fact, I'd be surprised if it really heated up anything other than itself (and maybe the socket) to any real extent. It's not like the backside of the CPU is ever cooled at all even with the best of coolers.

I guess we'll see what the long-term effects are for Haswell chips but I know there are a great many servers and HPC systems that sit with their CPUs running near throttling temperatures 24/7 for years on end without many issues. Intel didn't set (or at least I wouldn't expect them to have) the throttling limit at a temperature that would cause them to fail in less than the warranty period even if run full tilt at throttling for the entire warranty period.
Victory requires no explanation. Defeat allows none.
 
sparkman
Gerbil First Class
Posts: 119
Joined: Mon May 12, 2003 8:36 am
Location: San Francisco, CA

Re: CPU temps for i7-4770k?

Mon Sep 30, 2013 3:35 pm

Waco wrote:
but I know there are a great many servers and HPC systems that sit with their CPUs running near throttling temperatures 24/7 for years on end


That's true, but that's part of why server chips cost more. Intel qualifies the server silicon at a higher level suited for 24/7 operation. Desktop chips don't necessarily meet that standard.

In general I think you are both right. Heat can degrade the components over time, eventually causing failure. But that doesn't mean running a modern chip at 90C is necessarily a bad thing. You just might be shaving off the tail end of the chip's lifetime.
Intel i7-4770K, Corsair 16 GB DDR3 1333, MSI GeForce GTX 770, Samsung SSD 840 Pro 512 GB, WD Black HDD 1 TB, Asus Z87-A, Corsair HX850, Hyper 212 EVO, Corsair Carbide 200R
 
Waco
Maximum Gerbil
Posts: 4850
Joined: Tue Jan 20, 2009 4:14 pm
Location: Los Alamos, NM

Re: CPU temps for i7-4770k?

Mon Sep 30, 2013 4:25 pm

Sure, it causes some degradation, but I don't believe that degradation is worth being concerned about on a chip that you'll likely use for less than a decade.
Victory requires no explanation. Defeat allows none.
 
morphine
TR Staff
Posts: 11600
Joined: Fri Dec 27, 2002 8:51 pm
Location: Portugal (that's next to Spain)

Re: CPU temps for i7-4770k?

Mon Sep 30, 2013 4:51 pm

To be completely fair, this is only a concern in Average Joe's case that will be poorly ventilated to begin with (so damage to the mobo is more likely), and/or on a laptop, for obvious reasons.

On a well-maintained and ventilated desktop case, it should be okay.... ish.
There is a fixed amount of intelligence on the planet, and the population keeps growing :(

Who is online

Users browsing this forum: No registered users and 1 guest
GZIP: On