i7 3930k Never goes to 100% Utilization

T

ThatBadAssMofo

New member
Here is a picture of my task manager: [link]

The speed hovers around 1.15 GHz on idle, when I turn on Prime95 (image below) utilization goes up to about 37% and no higher. [link]

My power settings are set to maximum performance. PC Mark says my processor should produce scores of about 12,088 [source]. Here my score is 4,247 (Here are my other scores for reference [Part1] [Part 2]

Anyone have any ideas?

Also, I posted this on Reddit here and was directed here.

Specs:
CPU - i7 3930k
GPU - GTX 670 x2
RAM - 64 GB
MOBO: Asus Rampage Extreme IV
Windows 10
 
How long have you had the rig? Has it always done this or is it a new development?

And welcome to the forum dude, pop to the introduction section and introduce yourself.
 
Last edited by a moderator:
ThatBadAssMofo said:
Here is a picture of my task manager: [link]

The speed hovers around 1.15 GHz on idle, when I turn on Prime95 (image below) utilization goes up to about 37% and no higher. [link]

My power settings are set to maximum performance. PC Mark says my processor should produce scores of about 12,088 [source]. Here my score is 4,247 (Here are my other scores for reference [Part1] [Part 2]

Anyone have any ideas?

Also, I posted this on Reddit here and was directed here.

Specs:
CPU - i7 3930k
GPU - GTX 670 x2
RAM - 64 GB
MOBO: Asus Rampage Extreme IV
Windows 10
Click to expand...

Start by making sure you have the latest BIOS on your mobo, then reset all settings to default. Then test again to see if there's a difference.
 
Load up CPUZ and look at your CPU speed. Then look at it when the board is under load (use Prime 95). First thing to make sure is that your board is not throttling the chip.

So yeah, make sure your clock speeds are staying correct first.
 
Kilbane said:
How long have you had the rig? Has it always done this or is it a new development?

And welcome to the forum dude, pop to the introduction section and introduce yourself.
Click to expand...

The rig was built about 3 years ago, I only recently got a hold of it, prior user has no idea.

tolagarf said:
Start by making sure you have the latest BIOS on your mobo, then reset all settings to default. Then test again to see if there's a difference.
Click to expand...

Would a BIOS upgrade be necessary to fix this? All I want is my processor to perform at its stock speed.

I will do a BIOS upgrade if we can't come up with anything else.

AlienALX said:
Load up CPUZ and look at your CPU speed. Then look at it when the board is under load (use Prime 95). First thing to make sure is that your board is not throttling the chip.

So yeah, make sure your clock speeds are staying correct first.
Click to expand...

Here is CPU-Z idle

Here is CPU-Z with Prime95 running

The speed doesn't change at all.
 
Last edited by a moderator:
Sometimes BIOS updates are necessary to fix these issues.
Is this a fresh Windows install?

Also please don't double post - use the edit button cheers.
 
It's down clocking to 1.2ghz under load,dude.

My guess? The fets on the mobo are fried. If it can't even hold clocks something is badly wrong.
 
Update the BIOS. It's a simple enough procedure. Cross your fingers and hope that its a BIOS problem. If you go into the BIOS, what speed is the BIOS showing for the chip?
 
1) simply enter bios and see if all is at default.

if you re lost reset it to default values

2) make a new clean windows install
 
ThatBadAssMofo said:
Here is a picture of my task manager: [link]

The speed hovers around 1.15 GHz on idle, when I turn on Prime95 (image below) utilization goes up to about 37% and no higher. [link]

My power settings are set to maximum performance. PC Mark says my processor should produce scores of about 12,088 [source]. Here my score is 4,247 (Here are my other scores for reference [Part1] [Part 2]

Anyone have any ideas?

Also, I posted this on Reddit here and was directed here.

Specs:
CPU - i7 3930k
GPU - GTX 670 x2
RAM - 64 GB
MOBO: Asus Rampage Extreme IV
Windows 10
Click to expand...

Don't use Passmark as it is totally useless !!!

Download Cinebench 15 from the link below, give it a run and post the score. Use the multi core CPU test.

http://www.guru3d.com/files-details/cinebench-15-download.html
 
It does sound like the bios is set wrong, like the multiplier has been changed down on purpose. A mate bought a pc like this and the previous owner did it on purpose because the cpu was overheating at stock - it had fresh air for thermal interface material.
 
I would not risk flashing the bios yet.

First I would reset the board properly using clear CMOS. Like, with a jumper. Just to make sure remove the battery for a while, then replace.

Basically if you look at all of the evidence the CPU is stuck at its lowest possible multiplier of 12. When put under load,as we have seen from the use of Prime 95 it is still stuck at 12.

Now either there's something set wrong in the bios and the chip is clocked to 1.2ghz there or, as I fear, the VRMs and power phases are toast and can not supply the current needed to run the CPU.

I know I'm talking worst case scenarios here but the same exact thing happened to me recently.

As for flashing the bios? Firstly the 3930k was one of the X79 launch chips so there's no way that this is happening due to the bios and secondly, if this is the bios causing this it could be corrupt, meaning flashing it could be disastrous.

This could also be caused by a poorly mounted cooler/bad TIM application. Check your CPU temps when running Cinebench or Prime and make sure your cooler is working properly as if it's an AIO it could have suffered pump failure.

My money is still on the board's power phases, though.
 
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