topic Re: I7 6700k- High CPU Usage- New Build in Mobile and Desktop Processors

I7 6700k- High CPU Usage- New Build

JHale — Wed, 09 Mar 2016 11:44:14 GMT

Hi all,

Just upgraded my PC, the specs are:

I7-6700K

Asus Z170 MKI

Radeon R9 280x

Corsair 2400Mhz DDR4

Win 7 Ultimate 64x

Corsair 750W Bronze

H60

Having issues where when running idle, CPU usage spikes randomally upto 20%, esp when loading programs it can hit the high 40's (no programs in specific causing the load, just whatever is open/running will spike; including svchost etc). Playing any game almost immediately tops out the CPU at 100%. All drivers and updates installed, new install. Any idea's why this is happening? Poss defective chip? Temps are okay, higher than I expected when idling though.

Also maybe worth noting that the CPU voltage was set to 1.37V upon install without any changes to bios etc, forcing this to 1.2V improved usage slightly.

Many thanks.

Edit: After checking CPU-Z it seems as if my core speed is jumping between 800 and 4000 every second with corresponding voltages going from 0.7V to 1.37V. I understand this happens when under load, but the PC is idle.

Message was edited by: James Hale

Re: I7 6700k- High CPU Usage- New Build

ppara5 — Wed, 09 Mar 2016 15:31:15 GMT

Look in Task Manager, especially the Processes tab, where you will probably discover that you have some over-active processes.

Re: I7 6700k- High CPU Usage- New Build

JHale — Wed, 09 Mar 2016 15:51:35 GMT

Hi Paramountain,

I am checking the Task Manager, this is where I am supplying the above info from. It's more the case that it shouldn't be doing this at all CPU usage all round should be lower and certainly not maxing out on all games when my prev AMD processor handled it just fine. Do you have any suggestions as to why it could be doing this? Should I try reseating the CPU (can it cause this issue)?

Usually I would follow a process of elimination and replace parts to see what is causing the issue, but this is my first changeover to Intel, so I don't have a spare 1151 Socket mobo/cpu lying around to test.

It should be noted that it has passed the Intel Processor Diagnostic Software, however, I am still experiencing these issues.

Cheers

Re: I7 6700k- High CPU Usage- New Build

JHale — Wed, 09 Mar 2016 15:53:43 GMT

--- IPDT64 - Revision: 3.0.0.25.W.MP

--- IPDT64 - Start Time: 10/03/2016 12:25:03

--------------------------------------------------------------------

Processor 1

--------------------------------------------------------------------

Intel(R) spbc Module Test

Module Version: 1.0.7.64b.W

Start Time: Thu Mar 10 12:25:03 2016

Test Result - PASS

..!!..Processor under test is verified as 'PRODUCTION'..!!..

Processor Manufacturer: GenuineIntel

Processor Brand String: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz

End Time: Thu Mar 10 12:25:03 2016

Total Time: seconds: 0

--------------------------------------------------------------------

Genuine Intel CPU Test

Module Version: 1.0.12.64b.W

Start Time: Thu Mar 10 12:25:03 2016

Test Result - PASS

Expected: GenuineIntel

Detected: GenuineIntel

End Time: Thu Mar 10 12:25:03 2016

Total Time: seconds: 0

--------------------------------------------------------------------

Temperature Test

Module Version: 1.0.12.64b.W

Start Time: Thu Mar 10 12:25:03 2016

Test Result - PASS

Expected: Greater than 1 degrees below max

Received: 65 degrees below max

End Time: Thu Mar 10 12:25:03 2016

Total Time: seconds: 0

--------------------------------------------------------------------

CPU Brand String Test

Module Version: 1.0.12.64b.W

Start Time: Thu Mar 10 12:25:03 2016

Test Result - PASS

Expected String Parts: As Defined in BrandString_LocalConfig.xml

Detected: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz

End Time: Thu Mar 10 12:25:03 2016

Total Time: seconds: 0

--------------------------------------------------------------------

CPU Frequency Test

Module Version: 1.0.14.64b.W

Start Time: Thu Mar 10 12:25:03 2016

Test Result - PASS

Processor Name: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz

Expected CPU Frequency: 4.00

Detected CPU Frequency: 4.00178

Expected Base Clock: 100

Detected Base Clock: 100.044

QPI link rate Test - Not supported.

Skipping QPI link rate Test.

End Time: Thu Mar 10 12:25:04 2016

Total Time: seconds: 1

--------------------------------------------------------------------

Floating Point Test

Module Version: 1.0.10.64b.W

Start Time: Thu Mar 10 12:25:04 2016

Test Result - PASS

Million Floating Points per Second, MFLOPS: 604.8

Error: 0

--- Floating Point Test Passed!!!---

End Time: Thu Mar 10 12:25:06 2016

Total Time: seconds: 2

--------------------------------------------------------------------

Prime Number Generation Test

Module Version: 1.0.10.64b.W

Start Time: Thu Mar 10 12:25:06 2016

Test Result - PASS

Operation Per Second: 5.31663e+006

Error: 0

--- Prime Number Generation Test Passed!!!---

End Time: Thu Mar 10 12:25:08 2016

Total Time: seconds: 2

--------------------------------------------------------------------

Cache Test

Module Version: 1.0.10.64b.W

Start Time: Thu Mar 10 12:25:08 2016

Test Result - PASS

--- Reading Cache Size ---

- Detected L1 Data Cache Size --> 32

- Detected L1 Inst Cache Size --> 32

- Detected L2 Cache Size --> 256

- Detected L3 Cache Size --> 8192

Cache Size Test Passed!!!

End Time: Thu Mar 10 12:25:08 2016

Total Time: seconds: 0

--------------------------------------------------------------------

MMXSSE Test

Module Version: 1.0.10.64b.W

Start Time: Thu Mar 10 12:25:08 2016

Test Result - PASS

--- Determining MMX - SSE capabilities ---

--- CPU FEATURES DETECTION FOR ---

--- MMX SSE ---

MMX - MMX Supported --> Yes

SSE - SSE Supported --> Yes

SSE2 - SSE2 Supported --> Yes

SSE3 - SSE3 Supported --> Yes

SSSE3 - SSSE3 Supported --> Yes

SSE4.1 - SSE4.1 Supported --> Yes

SSE4.2 - SSE4.2 Supported --> Yes

--- MMX SSE - capabilities check complete ---

MMX Test Result --- PASS

SSE Test Result --- PASS

SSE2 Test Result --- PASS

SSE3 Test Result --- PASS

SSSE3 Test Result --- PASS

SSE4.1 Test Result --- PASS

SSE4.2 Test Result --- PASS

End Time: Thu Mar 10 12:25:08 2016

Total Time: seconds: 0

--------------------------------------------------------------------

AVX Test

Module Version: 1.0.11.64b.W

Start Time: Thu Mar 10 12:25:08 2016

Test Result - PASS

--- Determining AVX AES PCLMULQDQ capabilities ---

--- CPU FEATURES DETECTION FOR ---

--- AVX/AES/PCLMULQDQ ---

AVX - Advanced Vector Extensions Supported --> Yes

AVX OS Support - AVX Operating System Supported --> Yes

AES - Advanced Encryption Standard Supported --> Yes

PCLMULQDQ - Polys Carry-Less Multiply Supported --> Yes

--- AVX AES PCLMULQDQ capabilities check complete ---

AVX Compare Test Result --- PASS

AES Test Result --- PASS

PCLMULQDQ Test Result --- PASS

End Time: Thu Mar 10 12:25:08 2016

Total Time: seconds: 0

--------------------------------------------------------------------

IMC Test

Module Version: 1.0.7.64b.W

Start Time: Thu Mar 10 12:25:09 2016

Test Result - PASS

--- Reading Memory Size ---

Detected Memory Size is --> 16.00GB

--- Subtest - Memory Size Test Passed!!! ---

--- Integrated Memory Controller Stress Test ---

Memory to be allocated = 1048576 byte

Memory Allocated.

Test 1 Ones and Zeros Moving Inversions write operations - Passed

Test 1 Ones and Zeros Moving Inversions verification operations - Passed

Test 2 32Bits Sliding Ones write operations - Passed

Test 2 32Bits Sliding Ones verification operations - Passed

Test 3 32Bits Sliding Zero write operations - Passed

Test 3 32Bits Sliding Zero verification operations - Passed

Memory Deallocated.

--- Subtest - Memory Stress Test Passed!!! ---

Integrated Memory Controller Stress Test Passed!!!

End Time: Thu Mar 10 12:25:09 2016

Total Time: seconds: 0

--------------------------------------------------------------------

PCH Test

Module Version: 1.0.9.64b.W

Start Time: Thu Mar 10 12:25:09 2016

Test Result - PASS

Chipset : Skylake Platform Controller Hub

No device connected to PCI Express Port 1

No device connected to PCI Express Port 9

1 device conne...

Re: I7 6700k- High CPU Usage- New Build

ppara5 — Wed, 09 Mar 2016 19:01:46 GMT

I have seen issues like yours where an anti-virus or other application is a little too eager. You mentioned swapping parts; if you have a spare drive, I suggest disconnecting your current drive(s) and installing Windows on the new one. Don't activate it via Microsoft, but install all usual updates and your testing tools. Then test. Add a game or whatever causes the problem and test.

But before you do that, reinstall your CPU cooler and make sure it is properly seated with the proper amount of thermal compound. I say this because of your comment that temperatures are "higher than I expected when idling."

Also, your comment that "corresponding voltages [are] going from 0.7V to 1.37V" could point to a PSU problem. Or it could be the motherboard. Or it could be the CPU as you suspect. Do you have a spare PSU with which to test?