Maximus vi hero and 4770k OC issues

[alex380]

Hello everybody. I have a maximus vi hero and a 4770k about 1year now. I had my 4770k overclocked to 4.4Ghz with 1.3Vcore. About 1 month now my system is not stable at all while it used to be rock stable (checked with many stress tests such as prime95 ooct and more). I flashed older versions of bios but i get bsod's not only on stress tests but even in gaming. Now i have the latest 1603 version. Can anybody help me? Are my cpu or my motherboard degraded? Help me please!

My rig:
Cpu: Intel 4770k
Motherboard: Asus Maximus VI Hero
Cooler: Corsair H80i
Ram: Mushkin 2x8gb (997073) 1866Mhz
Gpu: Nvidia GTX780
Psu: Corsair TX750W
SSD-HDD: Samsung 840 EVO 250GB + Seagate 1.5TB

My old stable settings:
Ai Overclock Tuner: Manual
CPU Core Ratio Sync All Cores
1,2,3,4-Core Ratio Limit 44
Min CPU Cache Ratio auto
Max CPU Cache Ratio auto
Internal PLL Overvoltage Enabled
Memory Frequency 2200
Xtreme Tweaking Auto
EPU Power Saving Mode Disable
CPU Core Voltage 1.3v(adaptive)
CPU Cache Voltage 1.15v(adaptive)
CPU System Agent Voltage +0.18
CPU Analog I/O Voltage +0.18
CPU Digital I/O Voltage +0.18
PCH Interfacing Voltage Audo
SVID Support Disable
Initial CPU Input Voltage 1.85
Eventual CPU Input Voltage auto
DRAM Voltage 1.5v
PCH VLC Voltage Auto
VTDDR Voltage Auto
DRAM CTRL REF Voltage Auto
DRAM DATA REF Voltage on CHA Auto
DRAM DATA REF Voltage on CHB Auto
CPU Spread Spectrum Disable
BLCK Recovery Auto

I tried many other voltages and settings(xmp on ram also), but again my system is not stable anymore...
P.s: Sorry for my bad English 😛

[MeanMachine]

Hi alex380
Well, degradation of your CPU seems likely if what you have tried has failed and it could be other things.
It could be your Thermal Interface so you should try to reapply TIM and test again (probably best outside the case) and if unsuccessful then report back with findings.
You have a 3 year warranty on that CPU should you have to RMA.
Also, When your system BSODs, do you have the dump file and if so have a look at it, as it may provide a clue.

[alex380]

Hi MeanMachine
And thank you for your fast reply! I changed recently my thermal paste. I think my temperatures are fine. On full load only first core is about 85c and the other three about 70-75. Well i changed many times my thermal paste but it is fine i don't know why first core is so much hotter. Anyway. Can i RMA my cpu because can't overclock anymore? Here's a link of a screenshot of my dmp file. I cannot upload it.
https://onedrive.live.com/redir?resid=4848401FFF2728A2!4955&authkey=!APnvs7EA8mp73r0&v=3&ithint=phot...

[MeanMachine]

ok I'm doing a little research on the dump but not much to go on. In the meantime.
Open an elevated command prompt and do an SFC /SCANNOW at least this will identify and maybe eliminate any corrupt files you may have in Windows. If any are found and not repaired, report back.
Test your DIMMs using Memtest86, and test them one DIMM at a time in the first slot, report back.
Do a CHKDSK and report findings.
Not sure if this fix will help but can't hurt to give it a try. Download the 0X00000f4 repair tool from: http://repairerrors.net/0x00000f4.html
Not sure if you can RMA the CPU, that is between you and Intel and what you say. Tell them a core has been constantly overheating at stock frequency.

Edit: 0x0000124 is indicative of a hardware fault, so we have to start somewhere!

[alex380]

Well, I performed an sfc /scannow and found no problems. Also I performed chkdsk and found some issues but it fixed them. I run memtest86+ and found errors. Also I noticed something strange, although I set ram frequency 2200mhz from bios, on memtest the frequency is ~2933mhz! I set xmp profile and I run it again. Now on memtest86 I see the right frequency of ram kit (1866mhz) and no errors up until now. I ll try to change frequencies and timings and I 'll post back again.

Edit: With xmp I had no errors on memtest for about 2 hours. But again when I run prime95 after 5-10 minutes I have bsod's. Is it possible the mainboard have issues or have been degraded too?

[MeanMachine]

Ok you have tested your DIMMs and with correct Bios settings you should be good to go. All 16GB correct?
I suggest you reset CMOS to change Bios to default frequency values and voltages and no OCing whatsoever, then test for stability.
It is possible that the MB is at fault or the CPU,but eliminate the other possibilities first.
Download ROG Realbench and run a stress test. It is less harsh and a real world tester compared to Prime95.
This is hopefully Bios related.:o

[alex380]

Well i reset cmos and reflashed bios. Again i get bsod (Whea_Uncorrectable_Error). On default frequencies it is stable. I checked the socket to see if i have bent pins also but everything is fine. When i started up my pc though, i saw "new cpu installed" warning but nothing more than this. Everything else works just fine but it cannot overclock to 4.4Ghz anymore 😕

[MeanMachine]

The “whea uncorrectable error” message that you get on Windows 8.1 with a BSOD can be caused by two things. Either you have a hardware failure or you have problems with your Windows 8.1 drivers that are probably not compatible with your Windows 8.1 operating system. You will have to fix the issue.

The first thing you want to do is a driver check, as your system is still somewhat operational. You can, of course, install Driver Reviver to simplify this process — if you do, run it before you enter Safe Mode. If not, try to boot into Safe Mode when you turn on your computer — Shift+F8 on Windows 8, and F8 or another, manufacturer-specific key on earlier versions of Windows. To navigate to Safe Mode on Windows 8, you’ll need to go to Advanced Launch Options, which’ll reboot your computer and give you a list of options to choose from. Pick Safe Mode, of course.
After that, open your Start Menu/Screen and search for Device Manager and launch it. Update each one of your drivers or, if a driver update caused this error, roll back the driver of whatever caused this error.

Another problem could be the power saving feature C1E, Intel SpeedStep or Intel C-State in Bios and you should disable this to try.

[alex380]

There are no problems with the drivers or with c-states, speedstep etc. I checked everything but the problem still exists. Well i have my cpu or motherboard downgraded. I can't do anything now...I am just very disappointed that i spent extra money to buy -K edition of this cpu and can't overclock it at all. Only about 4.1-4.2ghz hardly. So i spent 50 more euro for nothing. Anyway thank you very very much for your help! 😄