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FX 8350 - MPrime/Prime95 Worker Stopped on ANY OC

post #1 of 5
Thread Starter 
I'm trying to overclock the 8350 in the rig in my profile, an no matter what I do, MPrime(The Linux version of Prime95) fails because a worker stops. Cooling is fine, that is not even remotely an issue. I've set the VCore to 1.45 and the LLC to to Ultra High with the Voltage Over Current to 120%. Cool n' quiet, C1E, SVM, C6, turbo core, and Spread spectrum all are disabled. Extreme tweaking is enabled. I've tried various configurations of these on every multiplier from 22 up to 25, and the results range from workers stopping at best to kernel panics and system lock up at worst. Is there something that I'm missing? It can't seem to get ANY overclock.
post #2 of 5
I'd be happy to try helping but will say I know nothing of Linux.
Also not sure of your experience level so please don't think I ever intend to belittle you.

Make sure to also set
Ai OC tuner - manual
CPU Level Up - Cancel
guessing you knew this already.

Manually enter ALL Dram specs (freq, timing and voltage).

In bios it's best to manually enter as many values as possible (that you know).
If you don't know what one is leave on default till you can research or ask.

If MPrime is the same as Prime95 (again here I have no knowledge) I would recommend additional CPU/NB and /or Dram voltage for a worker failing.
If you are not aware many FX owners have issues running Prime95 OC'd and a few even at stock settings.
Prime95 takes a lot of Vcore over IBT AVX version to run stable. My OC's always pass 24 hrs of prime95 but with this 8350 it took me over six months to find that semi sweet spot to allow it to pass. Honestly for the longest time I was convinced mine would never pass lol.

The CHV-Z and 8350 are awesome but it does take time. Over volting will kill an OC as fast as under volting and it's a fine balance after a certain point.

You should always start out with stock voltages and freqs (manually entered) and test for say 20 minutes. If it passes stock make small increases to CPU multiplier followed with same test. Repeat till it fails. At this point make a small increase in voltage and retest. Repeat.
Only increase what is necessary, when it's necessary. Never just throw a number out there and see what happens. It's way to easy to over shoot and cause instability.

Judging from your sig rig I apologize again because I feel you may already know this.

Can you post a snip with something similar to HWInfo and CPUZ that shows where you are currently at?
I have bios snips if you feel they would be of any help.
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Ryzen Build
(20 items)
 
 
Bruce
(14 items)
 
CPUMotherboardGraphicsRAM
R7 1800x Crosshair VI Hero Diamond 7970 GSkill FlareX F4-3200C14D-16GFX  
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO NVMe Samsung 840 SSD Corsair GT SSD WD 2TB Black 
Hard DriveCoolingCoolingCooling
WD 4TB Red EK-FB Asus C6H Monoblock XSPC GPU Razor WB XSPC RX 360 
CoolingCoolingCoolingCooling
XSPC RS 360 XSPC EX140 D5 Vario Gentle Typhoon AP-15 1850 rpm 
OSMonitorPowerCase
Win 10 Pro Asus VE248H x2 EVGA 850 G2 Xigmatek Elysium 
CPUMotherboardGraphicsRAM
FX 6350 Asus M5A99FX Pro R2.0 GTX220 G.Skill Ripjaws X F3-17000CL9D-8GBXLD 9-11-9-28... 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 840 Pro WD20EFRX 64M Red x4 raid 10 WD5001AALS Blk Asus DRW-24B1ST 
CoolingOSMonitorKeyboard
Hyper 212 Evo R2 Windows Server 2008 R2 Standard Asus  Logitech MK300 
PowerCase
Corsair HX500 Corsair 330R Titainium 
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post #3 of 5
check your rams o.o
    
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CPUMotherboardGraphicsRAM
Intel Core i7 4790K MAXIMUS VII GENE NVIDIA GeForce GTX 970 G. 
RAMHard DriveHard DriveHard Drive
G. WD Black Caviar 1.5 TB Samsung 840 Evo Samsung 840 Pro 
CoolingCoolingCoolingCooling
EK PE 360mm EK PE 240mm EK 980 Plexi WB EK 140mm D5 Rad Top 
CoolingOSMonitorKeyboard
MCP 655 D5 Windows 8.1 ACER XB270HU Corsair K70 
PowerCaseMouseMouse Pad
Enermax Maxrevo 1350W Caselabs S5 Corsair M65 Corsair K200 
Audio
Sennheiser PC 350 
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post #4 of 5
Thread Starter 
Thanks guys. I actually wanted a complete rundown of where I could have gone wrong. I haven't done a serious AMD overclock in a while. I have to check but I may have left the RAM on auto. I wasn't paying much attention to it.
post #5 of 5
There is an 8350 Overclocking written tutorial around these boards..
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