amd x6 1100T unstable at 3.5 Ghz?

[az09]

Hi im trying to overclock 1100T from 3.3 to 3.5 Ghz by increasing multiplier from 16.5? to 17.5

I first increased the clock to 3.4 ghz and ran prime95 for 8 hrs and everything stayed fine and stable
However when increased the clock to 3.5 ghz, prime 95 is throwing error at worker#5(core#5) after 30 mins to an hour

[Mar 12 15:34] FATAL ERROR: Rounding was 4, expected less than 0.4
[Mar 12 15:34] Hardware failure detected, consult stress.txt file.
[Mar 12 15:34] Torture Test completed 41 tests in 57 minutes - 1 errors, 0 warnings.
[Mar 12 15:34] Worker stopped.

I tried to run prime95 multiple times @ 3.5 ghz and both of time error came at core#5.

Does that mean my Computer is going to be unstable and throw BSOD during games? Is there anything i need to do make my cpu more stable? ( like OverClock HT or FSB or Voltage etc)

any help is appreciated.

and oh my motherboard is http://www.asus.com/Motherboards/M4N82_Deluxe/
my CPU temperature never exceeded 60C

 

[soccerballtux]

yes, it does.

increase CPU voltage, or maybe some other chip needs a higher voltage

 

[az09]

yes, it does.

increase CPU voltage, or maybe some other chip needs a higher voltage

can you give me specifics ? not too sure which to increase how much that is why im here

 

[Burpo]

It's called the Silicon Lottery for a reason.. leave it at 3.4 & be happy..

 

[az09]

It's called the Silicon Lottery for a reason.. leave it at 3.4 & be happy..

But if majority of people are able to push it over 4 ghz, i should be able to atleast push it about 3.5

 

[Ketchup]

But if majority of people are able to push it over 4 ghz, i should be able to atleast push it about 3.5

The max safe temp for that CPU is 62. If you are already hitting 60, you don't want to start messing with voltage until you get better cooling.

 

[Zor Prime]

But if majority of people are able to push it over 4 ghz, i should be able to atleast push it about 3.5

Mine is at 3.45, it's happy, it doesn't much appreciate 3.5 and above. Temps are low, too.

 

[VirtualLarry]

My 1045T (same CPU, different binning) didn't want to go much above 3.5Ghz. Silicon Lottery indeed!

 

[Soulkeeper]

I'd hesitate to label any chip as having a safe overclock range that "everybody else" gets.
typically people brag about their success, the failures go unnoticed.
Often people will just run a bench or two and the system isn't really ever stable.

 

[Chicken76]

@OP: What is your idle temperature?

 

[tweakboy]

Raise voltage til its stable. Nothing to crazy.. thanks. I would go default stock then I would OC after that. Have you tried getting into safe mode ?

 

[az09]

THank you everyone for their input. So i replaced my Exhaust fan last night because it was terribly slow and old. My cpu idle temps are now at 20-25 and under gaming load 40. Havent Tried with prime95 to see what my cpu go upto under extreme yet but PC crashed last night while i was play ROME 2 Total war @ 3.5 GHz

 

[Burpo]

Of course it's going to crash! You have 1 core that's not up to that speed, but is fine at 3.4Ghz.. Be happy there or get a better CPU.

 

[squirrel dog]

roast that sum bitch down boy !!!

 

[az09]

Of course it's going to crash! You have 1 core that's not up to that speed, but is fine at 3.4Ghz.. Be happy there or get a better CPU.

but funny part is when the system crashed my CPU temperature was only 30C....

 

[Burpo]

Temps aren't @ issue. What matters is if that core can compute correctly at that speed.. Prime says it can't.

 

[Smoblikat]

Hey OP, it doesnt seem like you have done your homework before jumping into this. Overclocking is a very challenging and rewarding process, you should go on youtube and watch videos about people overclocking your specific chip. Watch them closely, then go on google and research anything you dont understand. Try to mirror the setings in the videos at first, then dial your CPU voltage in (most important part). Since its a BE chipo, you dont need to worry about your FSB/HT/NB and their associated voltages, since you only need to use the multiplier. Keep tweaking the CPU voltage until its as stable as it can be while staying under 62C and 1.45v, those are your safe maximum ranges on your processor. Just keep doing research, watching youtube videos, you will get it soon. I have a 1055T that will do 4.0 stable no problem, and that has a max multi of 14, so I need to play with the FSB and everything attached to that......not an easy task

 

[az09]

Thank you everyone for your response. So i was able to get my computer to 3.6 ghz stable via prime95 7 hrs running and IBT 20tests running @ very high. i had to bump my voltage to 1.35 V

Im planning to push it further to next level 3.7 ghz. what should be my next step? Play around with FSB ?

 

[az09]

I also have 4 ram sticks out of which 2 are of different latency and 2 are different ( 800 and 1066) respectively. Could that be affecting my OC? They are same brand and i have tested them via memtest 86 at 3.4 ghz speed and rams had no error

 

[Yuriman]

Your RAM will need to be run at the speed of the slowest sticks. Four might have an effect on your maximum overclock, but the biggest single factor will be the voltage required for your CPU to calculate correctly at a given clock. Added cooling generally doesn't help much with stability, but you can (more) safely set the voltage higher if temperatures are lower.

 

[Stuka87]

The hex cores don't OC real well. But with AMD Phenom II's you can't just bump the multiplier. Besides CPU voltage, you also have to almost always adjust the CPU-NB speed and voltage. Its far more complicated than it is with intels.

You should really do some searches, lots of write ups on the subject.

 

[az09]

The hex cores don't OC real well. But with AMD Phenom II's you can't just bump the multiplier. Besides CPU voltage, you also have to almost always adjust the NB speed and voltage. Its far more complicated than it is with intels.

You should really do some searches, lots of write ups on the subject.

On this subject i have read phenom II's specially Thubans are really good OC'ers. And specially with Multiplier. I am gonna work with FSB as i had no success with setting NB speed and voltage and see what happens

 

[az09]

Your RAM will need to be run at the speed of the slowest sticks. Four might have an effect on your maximum overclock, but the biggest single factor will be the voltage required for your CPU to calculate correctly at a given clock. Added cooling generally doesn't help much with stability, but you can (more) safely set the voltage higher if temperatures are lower.

currently at 3.6 ghz with V1.35 temp maxing out at 56 under IBT load(20 rounds) VERY HIGH SETTINGS

 

[Stuka87]

On this subject i have read phenom II's specially Thubans are really good OC'ers. And specially with Multiplier. I am gonna work with FSB as i had no success with setting NB speed and voltage and see what happens

Did you read any of the how-to's out there? Its a very picky setting, and it requires basically going up one notch, testing, not notch, testing, etc. It took me a week to get my 965BE to be stable at 4GHz.

 

[az09]

Did you read any of the how-to's out there? Its a very picky setting, and it requires basically going up one notch, testing, not notch, testing, etc. It took me a week to get my 965BE to be stable at 4GHz.

Not here but other forums and youtube vdo's etc. Alot of mix contents though. SOme say play with NB and NB volt, some say dont touch it. Some say play with FSB, some say otherwise. LOL its a big puddle of confusion

Next up is playing with Ram timings. I am trying to push at 3.7 ghz. Tried to do it previously via increasing NB freq. to 2349 MHz and NB volt to 1.175 v and cpu volt to 1.35 but prime95 kept crashing 30 min - 60 min window.