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Curious issues and Event log

Roverno

Roverno

Roverno

Associate
Joined
24 May 2011
Posts
1,790
Location
West Sussex
Hi all,

First off, not running any overclock currently, and havn't for a while. I had notived some strange cpu issues recently with occasional crashes, and unbalanced core temps and constant boost clock.

In the windows event viewer i am getting the following issue, that repeats 14000 times to fill the event log faster than i can mash F5 to refresh.

A corrected hardware error has occurred.

Reported by component: Processor Core
Error Source: Corrected Machine Check
Error Type: Cache Hierarchy Error
Processor APIC ID: 6

The event log ID is 19.

The APIC ID changes between 0 and 7, i assume referring to cpu core.

I have tried googling but i am not had any great success from that.

Does anybody here have any idea what might be causing this issue and how i can solve it?
 
I have run the Intel diagnostic tool. But that didn't show anything, which I didn't expect tbh. Bios is on 12.8 iirc, which is the latest. Will double check chipset drivers when I get home this evening. Have you had the issue yourself?
 
Installed all the latest intel drivers and chipset drivers. Same issues still :-/

Any more ideas anyone?
 
So i overclocked slightly. Set frequency to stay locked at 3.8Ghz and set the voltage to 1.2v, OCCT suggests that this is an accurate voltage reading 1.19v during loading.

Also set the Memory to the XMP profile.

Error still occurs just the same as before.
 
Updated my signature to prevent any confusion. It was well overdue.

Upped to 1.22v, seems a lot for 3.8GHz?

Core temp, according to HW monitor, although hotter on one core, is only by 4-5 degrees. and nowhere near anything high. Only hitting 70C or so.

PSU is corsair AX 860. New less than 6 months ago.

I did buy second hand so maybe it was cared for poorly previously. Dont really feel like i can justify a full upgrade just to solve a minor cpu issue though. Was planning for the budget to go on watercooling soon.
 
Memory controller (VTT) seems to be called CPU IO on msi boards. In bios it was reading 1.256. The recommended maximum seems to be 1.25... The auto seem to be running overkill already.
 
1.07 is the minimum i can set CPU IO (vtt) to. if i try any lower it just changes to box to 'AUTO'. I have booted with that voltage (1.07) and 2133 MHz though. Just going to post this and will run quick stress test
 
Short term stress seems to be ok. But the event manager is still creating errors like there is no tomorrow. I cleared it, and within 10 seconds it has 14000 errors.
 
2133mhz and 1.15 vtt. Stress test on LINPACK mode for a couple of minutes.

Much fewer error 19 codes, a few thousand though. Got one error 47 code, which relates to memory.
 
oh ok, assumed it might get some droop as the cpu does but i guess its negligible.

Yep, still errors with 1.15v
 
Capture1.png


Capture2.png


Capture3.png
 
I just wanted to see if it would clear the messages.

It hasnt. Even at 1.4 Vcore im still getting all the same error messages.
 
Now trying 1.3Vcore. Still the same error.

I know im being a little hammer fisted with my approach to core voltage but given that i have now tested 1.2, 1.3 and 1.4 volts it seems odd that i have not found a situation that fixes it.
 
If only access to memory was that simple. Darn heatsink makes it impossible to get to them. Will have to do that another time. probably tomorrow.

Thanks for all your help.
 
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