i7 4790k heat issue

[rsp]

my cpu temp is 100'c while full load ,at present using stock fan
is it ok to run in that temp ?^_^

 

[ShintaiDK]

Under what type of load?

And what frequency does it run at(use CPU-Z or hwmonitor).

The CPU will throttle, so as such nothing bad happens. But throttle=less performance.

Your motherboard may be autooverclocking it. Or your heatsink isnt seated correctly.

 

[rsp]

Under what type of load?

And what frequency does it run at(use CPU-Z or hwmonitor).

The CPU will throttle, so as such nothing bad happens. But throttle=less performance.

Your motherboard may be autooverclocking it. Or your heatsink isnt seated correctly.

while rendering , the cpu usage is 100% and temp is 100'c

when cpu usage drops down the temp is 40-50'c

 

[ShintaiDK]

What frequency is the CPU running at when you render? Specially in the start before it reaches 100C.

You may want to check your BIOS for something like "multicore enchancement" and disable it.

 

[myocardia]

when cpu usage drops down the temp is 40-50'c

You should be idling in the low 30s C, unless you are running it in a 32-33°C room. It sounds as if you need to finish seating your stock cooler. Having even just one of the push pins not completely seated will give you temps like you are seeing.

 

[rsp]

What frequency is the CPU running at when you render? Specially in the start before it reaches 100C.

You may want to check your BIOS for something like "multicore enchancement" and disable it.

hey , where can I find the CPU frequency ?

I did not over clock it .

 

[ShintaiDK]

hey , where can I find the CPU frequency ?

I did not over clock it .

http://www.cpuid.com/softwares/hwmonitor.html

Your BIOS may autooverclock for you. If it runs 4.4Ghz while you render for example.

 

[rsp]

http://www.cpuid.com/softwares/hwmonitor.html

Your BIOS may autooverclock for you. If it runs 4.4Ghz while you render for example.

Hardware monitor ITE IT8620
Voltage 0 0.76 Volts [0x3F] (CPU VCORE)
Voltage 1 3.36 Volts [0xAA] (VCC3)
Voltage 2 12.02 Volts [0xA7] (+12V)
Voltage 3 3.38 Volts [0xA9] (+VCC)
Voltage 4 0.79 Volts [0x42] (vAXG)
Voltage 5 1.80 Volts [0x96] (CPU VTT)
Voltage 6 1.36 Volts [0x71] (DRAM)
Voltage 7 3.36 Volts [0x8C] (+3.3V)
Temperature 0 38°C (100°F) [0x26] (TMPIN0)
Temperature 2 35°C (95°F) [0x23] (TMPIN2)
Fan 0 2616 RPM [0x102] (FANIN0)
Fan PWM 0 0 pc [0x0] (FANPWM0)
Fan PWM 1 0 pc [0x0] (FANPWM1)
Fan PWM 2 0 pc [0x0] (FANPWM2)

Hardware monitor ACPI
Temperature 0 28°C (82°F) [0xBC2] (TZ00)
Temperature 1 30°C (85°F) [0xBD6] (TZ01)


Processors
-------------------------------------------------------------------------

Number of processors 1
Number of threads 8

APICs
-------------------------------------------------------------------------

Processor 0
-- Core 0
-- Thread 0 0
-- Thread 1 1
-- Core 1
-- Thread 0 2
-- Thread 1 3
-- Core 2
-- Thread 0 4
-- Thread 1 5
-- Core 3
-- Thread 0 6
-- Thread 1 7

Timers
-------------------------------------------------------------------------

ACPI timer 3.580 MHz
HPET timer 14.318 MHz
Perf timer 3.897 MHz
Sys timer 1.000 KHz


Processors Information
-------------------------------------------------------------------------

Processor 1 ID = 0
Number of cores 4 (max 8)
Number of threads 8 (max 16)
Name Intel Core i7 4790K
Codename Haswell
Specification Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz
Package (platform ID) Socket 1150 LGA (0x1)
CPUID 6.C.3
Extended CPUID 6.3C
Core Stepping C0
Technology 22 nm
TDP Limit 88.0 Watts
Tjmax 100.0 °C
Core Speed 798.1 MHz
Multiplier x Bus Speed 8.0 x 99.8 MHz
Stock frequency 4000 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES, AVX, AVX2, FMA3, TSX
L1 Data cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 4 x 256 KBytes, 8-way set associative, 64-byte line size
L3 cache 8 MBytes, 16-way set associative, 64-byte line size
FID/VID Control yes


Turbo Mode supported, enabled
Max non-turbo ratio 40x
Max turbo ratio 44x
Max efficiency ratio 8x
O/C bins unlimited
Ratio 1 core 44x
Ratio 2 cores 44x
Ratio 3 cores 43x
Ratio 4 cores 42x
TSC 3990.7 MHz
APERF 3546.0 MHz
MPERF 3943.4 MHz
IA Voltage Mode PCU adaptive
IA Voltage Offset 0 mV
GT Voltage Mode PCU adaptive
GT Voltage Offset 0 mV
LLC/Ring Voltage Mode PCU adaptive
LLC/Ring Voltage Offset 0 mV
Agent Voltage Mode PCU adaptive
Agent Voltage Offset 0 mV

 

[ShintaiDK]

Watch it while you render. If it stays at 4Ghz then its fine. Then try reseat your heatsink. If you see 4 cores hitting 4.4Ghz then check the BIOS.

Also try render with 1 thread etc, see what temperatures you get.

 

[rsp]

Watch it while you render. If it stays at 4Ghz then its fine. Then try reseat your heatsink. If you see 4 cores hitting 4.4Ghz then check the BIOS.

Also try render with 1 thread etc, see what temperatures you get.

rendering with all threads

Processors Information
-------------------------------------------------------------------------

Processor 1 ID = 0
Number of cores 4 (max 8)
Number of threads 8 (max 16)
Name Intel Core i7 4790K
Codename Haswell
Specification Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz
Package (platform ID) Socket 1150 LGA (0x1)
CPUID 6.C.3
Extended CPUID 6.3C
Core Stepping C0
Technology 22 nm
TDP Limit 88.0 Watts
Tjmax 100.0 °C
Core Speed 3292.1 MHz
Multiplier x Bus Speed 33.0 x 99.8 MHz
Stock frequency 4000 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES, AVX, AVX2, FMA3, TSX
L1 Data cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 4 x 256 KBytes, 8-way set associative, 64-byte line size
L3 cache 8 MBytes, 16-way set associative, 64-byte line size
FID/VID Control yes


Turbo Mode supported, enabled
Max non-turbo ratio 40x
Max turbo ratio 44x
Max efficiency ratio 8x
O/C bins unlimited
Ratio 1 core 44x
Ratio 2 cores 44x
Ratio 3 cores 43x
Ratio 4 cores 42x
TSC 3990.7 MHz
APERF 3546.0 MHz
MPERF 3943.4 MHz
IA Voltage Mode PCU adaptive
IA Voltage Offset 0 mV
GT Voltage Mode PCU adaptive
GT Voltage Offset 0 mV
LLC/Ring Voltage Mode PCU adaptive
LLC/Ring Voltage Offset 0 mV
Agent Voltage Mode PCU adaptive
Agent Voltage Offset 0 mV

 

[rsp]

when rendering with single core the temp is between 77-90'c

when rendering with all cores the temp is 100 'c

and the clock is below 4000 mhz

 

[ShintaiDK]

Try reseat the heatsink. Make sure all the pushpins are down.

 

[LTC8K6]

Get rid of the stock heatsink, first.

Get Intel's new cooler:

http://www.amazon.com/gp/product/B013U542QE?psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s00

http://hexus.net/tech/news/cooling/85604-intel-ts15a-lga1151-twice-size-retail-lga1150-cooler/

 

[Ken g6]

Try reseat the heatsink. Make sure all the pushpins are down.

This first. The white part of the pushpins has to be all the way through the holes before you can lock the pushpins.

If that doesn't help, a fast, free solution would be to get Throttlestop. Set the clock speed at, say, 3GHz, which should also drop your voltage. Start rendering with all 4 cores, and fiddle with the clock speed until you're steady at ~80C. That should be faster than throttling at 100C. If nothing else, the clock speed you wind up at should be instructive.

Get rid of the stock heatsink, first.

That's a more expensive solution. If you get an aftermarket heat sink, though, I'd go for a Hyper 212 Evo if it fits in your case.

 

[LTC8K6]

I am about to get my replacement 4790K from Intel. I am going to try that Intel TS15A heatpipe cooler on it and see what it can do.

I have a 212evo, and frankly, it's a pain in the ass to have to bolt on a cooler.

Especially for me, since I change things around so much.

 

[rsp]

just checked the stock pins , everything is fine and very tight to the processor

 

[sm625]

lol that intel cooler is huge. I wonder how it works compared to other $30 coolers. Sad as it is to say it, but you cant really use intel's stock cooler for rendering. They really cheap out on their thermal solution. Like it would kill them to add $2 more metal to their HSF.

 

[LTC8K6]

lol that intel cooler is huge. I wonder how it works compared to other $30 coolers. Sad as it is to say it, but you cant really use intel's stock cooler for rendering. They really cheap out on their thermal solution. Like it would kill them to add $2 more metal to their HSF.

Yeah, the TS15A is a much better option if you want to go with a stock push-pin Intel cooler. It uses a heat pipe of some sort. The copper part goes all the way to the top of the cooler.

 

[rsp]

lol that intel cooler is huge. I wonder how it works compared to other $30 coolers. Sad as it is to say it, but you cant really use intel's stock cooler for rendering. They really cheap out on their thermal solution. Like it would kill them to add $2 more metal to their HSF.

lol

any best cooling suggestion

 

[LTC8K6]

lol

any best cooling suggestion

The 212evo is pretty good, but you have to bolt on a mounting plate and screw the cooler down, and it's pretty awkward. And it's huge.

A TX-3 is a little better than stock, and just uses the same push pins, but forget about overclocking.

I would just get Intel's new cooler. I will get my replacement 4790K today, and I should have it installed with a TS15A cooler tonight. I can let you know how it does. I think it will do pretty well.

If you want to overclock a little, a 212evo or similar will allow some overclocking.

If you really want to overclock, you need a water block type cooler.

 

[rsp]

The 212evo is pretty good, but you have to bolt on a mounting plate and screw the cooler down, and it's pretty awkward. And it's huge.

A TX-3 is a little better than stock, and just uses the same push pins, but forget about overclocking.

I would just get Intel's new cooler. I will get my replacement 4790K today, and I should have it installed with a TS15A cooler tonight. I can let you know how it does. I think it will do pretty well.

If you want to overclock a little, a 212evo or similar will allow some overclocking.

If you really want to overclock, you need a water block type cooler.

I am not interested in overclock but I like to run this cpu 24*7 hours total rendering

 

[Headfoot]

Get a hyper 212 Evo then, its cheap and effective. You'll have to install it with a backplate but its worth it and it stays fixed on there pretty good

 

[LTC8K6]

A 212evo is just under 6.5 inches tall, just over 4.5 inches wide, and just over 3" thick with the fan attached.

If that fits in your case, it will do the job for you.

 

[LTC8K6]

TS15A is a pretty good stock cooler. I'm running the replacement 4790K with all 4 cores at 4.4Ghz for now.

All of the normal stress tests pass with the temp barely cracking 80C

The ridiculous tests, like IBT, do get the CPU to just touch 93C.

No throttling of any sort.

I rate the TS15A as slightly below the 212EVO for cooling, and it is somewhat noisier at very high loads.

Under any normal stress though, the TS15A is fine, and much better than the stock Haswell cooler.

My Vcore has been maxing out at 1.190V for the extreme tests, and 1.170V for the normal stress tests.

EDIT: it's been idling around 28-30C.

 

[ShintaiDK]

6700K with TS15A. Low 30% fanspeed as max (1500rpm, super quiet) and it never breaks 80C no matter what load at stock. (Barely even breaks 75C and this is MiniITX.)

TS15A looks to be ~25$ here. And the benefit is you dont have to worry about if it fits besides height.

However the OP still haven't checked a few outstanding issues. The main reason for overheating tends to be BIOS settings. Both voltage and autooverclocking. Or if it is some high ambient, bad airflow issue. If it truly overheats at stock settings it should be RMAed.