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FX8350 stock instability

post #1 of 9
Thread Starter 
I recently upgraded my motherboard from a Gigabyte 970A to an ASRock 990FX Fatal1ty board and after many attempts in Prime95 I have not been able to get stable while overclocked or with stock settings. My rig started with 16GB of Patriot's Viper 3 1866mhz, I quickly found out that this ram was not tested or listed as compatible with my board. So I decided to buy compatible ram and went with Kingston Hyperx genesis 1600mhz starting with only 2 sticks 4GB each. I started Prime tonight with everything at stock settings, still unstable, did I get a dud 8350? Any insight would be greatly appreciated.
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Blue Dream
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post #2 of 9
make sure that you set thermal feat protection in the bios disabled, and monitor core temps @ 60degC each. wink.gif
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post #3 of 9
Thread Starter 
Yea I did disable thermal throttling and my temps don't go over 36c full load in Prime. I also cannot pass IBT either... I just ran it at High and it got through 3 passes, highest temp was 37c on cores.
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post #4 of 9
now thats something, have you updated the bios already?
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post #5 of 9
Thread Starter 
Yea I qflashed last night to 1.90, it was already at 1.90 but I figured it wouldnt hurt
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post #6 of 9
Thread Starter 
Quote:
Originally Posted by jayflores View Post

now thats something, have you updated the bios already?

I know its so odd, I cannot figure this out. I have tried so much
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post #7 of 9
Prime95 has trouble running on FX processors, at any speed. There are people who have gotten a stable 5 GHz on an 8150 or 8350, only to have Prime95 fail at stock. It's a flaw in the program, not in the CPU.

The fact that you can't pass Intel Burn Test is another issue entirely. You may have a bad CPU.
     
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post #8 of 9
hello,

list of guides to follow here,

http://www.overclock.net/t/226939/amd-cpus-current-tech-essentials-older-tech-link-included

please read a guide to understand how your bios setting work.

I like this one the most,

http://www.overclock.net/t/1348623/amd-bulldozer-and-piledriver-overclocking-guide-asus-motherboard

if you do understand then its easy as this....Disclaimer

http://en.wikipedia.org/wiki/Disclaimer

if you follow the advice below, you do this at your own risk and at risk, your personal computer is all your own property and problem, and is not mine.

please monitor your temp with hwmonitor and cpu-z for reading clocks,

http://www.cpuid.com/softwares/hwmonitor.html

http://www.cpuid.com/softwares/cpu-z.html

70c of any cpu temp [cpu or core temp] is max for the FX4xxx and FX6xxx
and 61c of any cpu temp [cpu or core temp] is max for the FX8xxx,

then....

one: go in to bios, hit del at start-up till you get to a blue-grey screen before windows.

two: go to the advanced tab, then go in to cpu config and disable cool and quite and everything there on that tab.(c1e,c6 state, hpc and apm (application power management))

three: press esc and go down one to northbridge, go in there and theres one thing to go in to , there you will see ECC enabled, disable that.( happens on asus mobo's)

now for the overclock......

four: got to the ai tuner tab of bios and change it to manual from auto.

five: got to cpu ratio and change to 20 x

six: disable turbo core

seven: go to ref clock and change to 200

eight: change your ram to the right speed, 1600mhz or whatever and set your ram timings.

nine: go to cpu load line calibration and change to high (I use ultra high on my m5a99x evo and on the sabretooth i found it to be medium)

ten: go to cpu voltage change to manual and change that to 1.29v (1.325v is stock).

now got to that last tab in bios save and exit.

you should now boot at 4ghz and be near stable under full load.

download cpu test programs

hyper pi is a memory test program, but it runs cooler than most cpu tests and will usually crash with os still running.
good for instantly knowing if your cpu is nearing stability.

http://www.softpedia.com/get/System/System-Info/Hyper-PI.shtml

occt is stability test program, will usually crash hardware and software if cpu/system is unstable.
good for long term oc tests.

http://www.ocbase.com/

need to test your cpu load line config with a heavy load ,use hyper pi, watch your voltage and give it a 1m test, what voltage do you get under full load?,
now move you load line up or down for increases or decreases to voltage and make it level under full load.
if you go extreme llc, lower voltage of cpu as it will climb a bit under load.

now run a full hour cpu test to see if it's stable, I used occt medium test for 2 hours.

i got a nice 4ghz stable at 1.284v at idle and under full load.

I did manage to get six core of the eight up to 4.6ghz with 1.464v showing in cpu-z.
it had heat issues after that, and my mobo is only a 6+2 vrm.

EDIT;this is my copy and paste advice for fx.
    
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post #9 of 9
Thread Starter 
Quote:
Originally Posted by MrPerforations View Post

hello,

list of guides to follow here,

http://www.overclock.net/t/226939/amd-cpus-current-tech-essentials-older-tech-link-included

please read a guide to understand how your bios setting work.

I like this one the most,

http://www.overclock.net/t/1348623/amd-bulldozer-and-piledriver-overclocking-guide-asus-motherboard

if you do understand then its easy as this....Disclaimer

http://en.wikipedia.org/wiki/Disclaimer

if you follow the advice below, you do this at your own risk and at risk, your personal computer is all your own property and problem, and is not mine.

please monitor your temp with hwmonitor and cpu-z for reading clocks,

http://www.cpuid.com/softwares/hwmonitor.html

http://www.cpuid.com/softwares/cpu-z.html

70c of any cpu temp [cpu or core temp] is max for the FX4xxx and FX6xxx
and 61c of any cpu temp [cpu or core temp] is max for the FX8xxx,

then....

one: go in to bios, hit del at start-up till you get to a blue-grey screen before windows.

two: go to the advanced tab, then go in to cpu config and disable cool and quite and everything there on that tab.(c1e,c6 state, hpc and apm (application power management))

three: press esc and go down one to northbridge, go in there and theres one thing to go in to , there you will see ECC enabled, disable that.( happens on asus mobo's)

now for the overclock......

four: got to the ai tuner tab of bios and change it to manual from auto.

five: got to cpu ratio and change to 20 x

six: disable turbo core

seven: go to ref clock and change to 200

eight: change your ram to the right speed, 1600mhz or whatever and set your ram timings.

nine: go to cpu load line calibration and change to high (I use ultra high on my m5a99x evo and on the sabretooth i found it to be medium)

ten: go to cpu voltage change to manual and change that to 1.29v (1.325v is stock).

now got to that last tab in bios save and exit.

you should now boot at 4ghz and be near stable under full load.

download cpu test programs

hyper pi is a memory test program, but it runs cooler than most cpu tests and will usually crash with os still running.
good for instantly knowing if your cpu is nearing stability.

http://www.softpedia.com/get/System/System-Info/Hyper-PI.shtml

occt is stability test program, will usually crash hardware and software if cpu/system is unstable.
good for long term oc tests.

http://www.ocbase.com/

need to test your cpu load line config with a heavy load ,use hyper pi, watch your voltage and give it a 1m test, what voltage do you get under full load?,
now move you load line up or down for increases or decreases to voltage and make it level under full load.
if you go extreme llc, lower voltage of cpu as it will climb a bit under load.

now run a full hour cpu test to see if it's stable, I used occt medium test for 2 hours.

i got a nice 4ghz stable at 1.284v at idle and under full load.

I did manage to get six core of the eight up to 4.6ghz with 1.464v showing in cpu-z.
it had heat issues after that, and my mobo is only a 6+2 vrm.

EDIT;this is my copy and paste advice for fx.

Ok, I am headed out to work this morning, when I get home I'm going to go through all of this. Thanks for the responses guys, much appreciated! I will say I am very familiar with bios and overclocking, I have done it for quite a few years, I just wasn't sure if I was missing some fine tuning or if my cpu just wasn't up to par.
Edited by Chrisafp07 - 3/14/13 at 4:18am
Blue Dream
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CPUMotherboardGraphicsRAM
AMD FX 8350 ASRock 990FX Professional Fatal1ty 2xGigabyte 7850  Patriot Viper 3 
Hard DriveHard DriveOptical DriveCooling
OCZ Vertex 4 Seagate Barracuda Sony 16xDVDRW Antec Kuhler 920  
OSMonitorKeyboardPower
Windows 8 Pro 9200 27in Acer 1920x1080p Madcatz Cyborg Gaming Keyboard XFX Core Edition 750w 80plus Bronze 
CaseMouseMouse PadAudio
Antec 300 Razer Naga Razer Kabuto Plantronics Gamecom 780 
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Blue Dream
(16 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX 8350 ASRock 990FX Professional Fatal1ty 2xGigabyte 7850  Patriot Viper 3 
Hard DriveHard DriveOptical DriveCooling
OCZ Vertex 4 Seagate Barracuda Sony 16xDVDRW Antec Kuhler 920  
OSMonitorKeyboardPower
Windows 8 Pro 9200 27in Acer 1920x1080p Madcatz Cyborg Gaming Keyboard XFX Core Edition 750w 80plus Bronze 
CaseMouseMouse PadAudio
Antec 300 Razer Naga Razer Kabuto Plantronics Gamecom 780 
  hide details  
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