My First 4ghz Overclock (980x)
- Thread starter Hay11Mac
- Start date
Henrik
New member
Sound good
but a word of advise, only chance one thing at a time when OC'ing
But I don't think that a 1.28 Vcore will cause any problem but leave it at that for now until you get your Prime issue sorted with the threads failing
Well I'm no computer genius I just remember that I found out (on another forum) the the difference between QPI and DRAM voltage should not be more then 0.5... But this has not been proven the be the case but its safer to go with that for now
Your DRAM voltage is 1.65V which is normal and should not have to be adjusted.
Your QPI voltage is your IMC (Integrated memory controller) which is responsible for the communication between the RAM and your CPU. On i7, i5, and i3 it is located in the CPU itself.
So you should stay within 0.5V... In your case: your memory voltage(DRAM Vol.) is at 1.65 and you take that minus your IMC voltage(Integrated memory controller)
1.65-1.25=0.40V that's within the 0.5V margin that's recommended
Hope it helped
Well I'm no computer genius I just remember that I found out (on another forum) the the difference between QPI and DRAM voltage should not be more then 0.5... But this has not been proven the be the case but its safer to go with that for now
Your DRAM voltage is 1.65V which is normal and should not have to be adjusted.
Your QPI voltage is your IMC (Integrated memory controller) which is responsible for the communication between the RAM and your CPU. On i7, i5, and i3 it is located in the CPU itself.
So you should stay within 0.5V... In your case: your memory voltage(DRAM Vol.) is at 1.65 and you take that minus your IMC voltage(Integrated memory controller)
1.65-1.25=0.40V that's within the 0.5V margin that's recommended
Hope it helped
Henrik
New member
well I had the exact same problem and it turned out to be that the IMC voltage was to low and it would just fail on all the workers in Prime.. There are people that are running around 1.35V on QPI so i would try 1.35V on the QPI if 1.3 dose not work and if that dose not work I would lower the BLCK and raise the multiplier on your CPU
Well it depends how much is quite abit?
At the moment the temps are:-
But they jump a degree or two about abit....
Henrik
New member
If the temperature varies 2-4 Celsius, I would call that "normal", try downloading OCCT and see if the temp varies or try folding
So prime has been running stable now? I would run it for 30min its probably long enough to test the QPI voltage.. If its stable for 30 min at 1.3V QPI then start lowering your Vcore and run prime for 60min and if it runs 60 min without a error the lower the Vcore again and keep doing it until you get a error or Blue screen. Then bump it up 0.02 and you should be good
if not bump it up 0.01-0.005 until its stable again
3.55gb usage seams normal.
So prime has been running stable now? I would run it for 30min its probably long enough to test the QPI voltage.. If its stable for 30 min at 1.3V QPI then start lowering your Vcore and run prime for 60min and if it runs 60 min without a error the lower the Vcore again and keep doing it until you get a error or Blue screen. Then bump it up 0.02 and you should be good
3.55gb usage seams normal.
Ok seems you have found your limit on Vcore I would put Vcore at 1.31V just for a safety margin. And run prime for 60min and if it passes the 60min mark without a error you have successfully overckloked your 980x to 4Ghz
Is it safe to run at 4ghz for 24/7?
will putting the vcore up more, increase temps more, as NB is cooking how it is
Henrik
New member
Well i did a quick Google search and it seams that there are a lot of Rampage 3 users that have the same problem and that they replaced the stock thermal paste and the temp dropped 7c. Do you have the optional fan on the NB? If not it would definitively help.
A 24/7 overclock on 1.31V is not going to kill your chip before you want to upgrade it. But I would recommend asking around an maybe ask TTL what he thinks. As I have not been running a 980x for a long period of time (I don't even own a 98x
) on 1.31V so i cant tell you for certain. But be sure I would not say its ok to run at 1.31V 24/7 if I don't sincerely think so
A 24/7 overclock on 1.31V is not going to kill your chip before you want to upgrade it. But I would recommend asking around an maybe ask TTL what he thinks. As I have not been running a 980x for a long period of time (I don't even own a 98x
Henrik
New member
Ok thanks for the info, it sounds very reasonable, but hayley your running your ram at 1600Mhz right? that would explain the lower QPI compared to you..
Do you have a rampage 3 Extreme? and does your NB get toasty
OK I have set the Vcore to 1.31v (well closest it would go was 1.31256 (Something like that, although when looking a the volts they jump about a bit to)
Got Prime95 running again, so fingers crossed we are all stable now
I appreciate all your help guys, although I am still a n00b at this, I have learnt some stuff tonight
I wonder if I have to have higher volts, cuz my OC is 4009ghz, although am running 20x200
Ok thanks for the info, it sounds very reasonable, but hayley your running your ram at 1600Mhz right? that would explain the lower QPI compared to you..
No RAM is at 2000mhz Timings 8.8.8.24, although CPU-Z says DRAM Frequency is 1002.4mhz but in bios its set to 2005mhz
Henrik
New member
No sorry I have the good old 790i haha
Well ok the lower volts the better
And yes its normal for the volt to jump around a little.
4009Mhz is normal, just because you have 200x20 it wont run at exactly 4Ghz so 4009Mhz is to be expected (it could just as well have been 3999.9Mhz)..
I'm glad you have "learned stuff tonight"
I try'ed to explain the best i could even to my first language is not English
Well ok the lower volts the better
And yes its normal for the volt to jump around a little.
4009Mhz is normal, just because you have 200x20 it wont run at exactly 4Ghz so 4009Mhz is to be expected (it could just as well have been 3999.9Mhz)..
I'm glad you have "learned stuff tonight"
