990x OC for 24/7

[TomoVK]

Hi guys!

I was working on my 990x OC, and i got to the point where i am stable on 4.5ghz, 1.375v in bios, 1.363v in idle (cpu-z), and 1.330v in load (cpu-z), 50% loadline calibration, but im only stable in prime95 small fft, and games run without problems (mostly bfbc 2). when i do blend, it is reporting rounding errors, never BSODs. I flashed to bios 0003, and i can modify tRL values now, but i dont know where to start. whatever i try, i get errors. i have g skill trident 2000mhz 9-9-9-24 kit, and i run it at 1804mhz 9-9-9-24-1n with uncore of 3608, cpu at 180x25. PLEASE HELP. I tried raising qpi/dram voltage and ram voltage, no use. temps dont get above 72c. I assumed that my cpu is stable at those voltages, and that the problem is something else (probably the memory), am I wrong? I feel like im playing bingo with this thing...it even happened to me once that i was running blend stable for like 2 hours, shut down, and in the morning, started the pc and again not stable for blend. I dont get BSODs, i get rounding errors.

 

[tinytomlogan]

Already told you dude. Drop the multi and work on a 200bclk clock. 200x20 should do be fine on that chip from 1.2 to 1.25v. Set the mem to 1600 then work on upping the multi.

 

[SnW]

Already told you dude. Drop the multi and work on a 200bclk clock. 200x20 should do be fine on that chip from 1.2 to 1.25v. Set the mem to 1600 then work on upping the multi.

I am thinking you are going nuts saying this everytime again !?

it should be a default overclock TBH!!!

 

[marsey99]

If you small stable but not blend its memory or men controller related.

 

[TomoVK]

If you small stable but not blend its memory or men controller related.

I too think its that, but how to fix it?ok, ill try 200x20 and let you know how it goes, tom. What uncore should i set for 1600mhz 20x200? i set uncore 2x, 1800.

 

[tinytomlogan]

I am thinking you are going nuts saying this everytime again !?

it should be a default overclock TBH!!!

There is a load of threads with it in if people bother to look. My fault for not doing the guide I spose. I think the PM's and nub questions will rocket then though when they dont follow it properly and want us to hold their hands through it all!

I too think its that, but how to fix it?ok, ill try 200x20 and let you know how it goes, tom. What uncore should i set for 1600mhz 20x200? i set uncore 2x, 1800.

UCLK or Uncore should be twice the mem. QPI shouldnt need touching at 1600/3200 thats why I told you to set it that way.

Concentrate on CPU first and tweak later.

 

[TomoVK]

There is a load of threads with it in if people bother to look. My fault for not doing the guide I spose. I think the PM's and nub questions will rocket then though when they dont follow it properly and want us to hold their hands through it all!

UCLK or Uncore should be twice the mem. QPI shouldnt need touching at 1600/3200 thats why I told you to set it that way.

Concentrate on CPU first and tweak later.

What cpu pll should i be using? So far i tested:

4.0ghz 200x20, ram 1604, uncore 3208, vcore in bios 1.225, in idle its 1.210, load 1.197v - 1.191v (cpu-z reading), 50% loadline calibration

qpi/dram 1.25 (sorry for that, i didnt notice it wasnt on auto)

i ran 1 hour prime95 blend, stable (finishes test 896k on all cores and i stopped it then).

Tested that with cpu pll 1.31v, didnt notice it was not on auto.

4.2 ghz 200x21 ram 1604, uncore 3208,vcore 1.293v in bios, 1.277 in idle, 1.263v - 1.257v under load (cpu-z) qpi/dram on auto (1.3v), cpu pll 1.31v, 50% loadline calibration

i ran 1 hour prime95 blend, stable (finishes test 896k on all cores and i stopped it then).

4.4 ghz 200x22, ram 1604, uncore 3208,vcore in bios 1.375v, idle 1.363v, load 1.336v - 1.330v (cpu -z), qpi/dram auto (1.3v), cpu pll 1.81v

 

[tinytomlogan]

What cpu pll should i be using? So far i tested:

4.0ghz 200x20, ram 1604, uncore 3208, vcore in bios 1.225, in idle its 1.210, load 1.197v - 1.191v (cpu-z reading), 50% loadline calibration

qpi/dram 1.25 (sorry for that, i didnt notice it wasnt on auto)

i ran 1 hour prime95 blend, stable (finishes test 896k on all cores and i stopped it then).

Tested that with cpu pll 1.31v, didnt notice it was not on auto.

4.2 ghz 200x21 ram 1604, uncore 3208,vcore 1.293v in bios, 1.277 in idle, 1.263v - 1.257v under load (cpu-z) qpi/dram on auto (1.3v), cpu pll 1.31v, 50% loadline calibration

i ran 1 hour prime95 blend, stable (finishes test 896k on all cores and i stopped it then).

4.4 ghz 200x22, ram 1604, uncore 3208,vcore

See how much lower your volts are now? And where you are running a higher BCLK it will be much faster.

CPU PLL just have it between 1.8 and 1.88 depending on it it needs juice.

Youll easily get 200x22 or 23 now with a bit of work.

Run prime with small fft's. All we need to know is how long it runs for fine and what temps across the cores.

Youve never said what cooling you are using? Temps are very important now you are clocking properly.

 

[MxFScotch]

You shouldn't be touching your multiplier yet. Listen to them. Here it is again.

1. Set your multiplier low. Say 16

2. You shouldn't even touch voltage until it crashes or doesn't boot.

3. Get your bclk as high as possible first with the low multiplier

4. Increase bclk by 5 or 10 each time to ensure maximum clock with least volts.

5. THIS TAKES TIME!!!. If you take your time and get the highest bclk first then increase multi after that. You will have much more success with lower volts and better temps.

6. All this should be used with 1600 mhz ram speed and uclk of double that 3200ish

7. Only after achieving your highest stable overclock first. Then you can tweak your ram.

 

[TomoVK]

See how much lower your volts are now? And where you are running a higher BCLK it will be much faster.

CPU PLL just have it between 1.8 and 1.88 depending on it it needs juice.

Youll easily get 200x22 or 23 now with a bit of work.

Run prime with small fft's. All we need to know is how long it runs for fine and what temps across the cores.

Youve never said what cooling you are using? Temps are very important now you are clocking properly.

I tested all this with prime95 on BLEND, should i test everything again with small fft? with small fft i need less vcore.

Im using swiftech h20-320 watercooling, with 6 fans push-pull.

I used cpu pll 1.31v, should i test everything again with 1.81v?

 

[tinytomlogan]

I tested all this with prime95 on BLEND, should i do it all over with small fft? with small fft i need less vcore.

Download OCCT and run it in linpack mode with 90% free memory on infinate. If you can get that stable youll be fine.

You still havnt said about your cooling and your temps dude.

 

[TomoVK]

Download OCCT and run it in linpack mode with 90% free memory on infinate. If you can get that stable youll be fine.

You still havnt said about your cooling and your temps dude.

Swiftech h20-320 watercooling, 6 2000rpm fans in push pull, at full power, i guessed with 3 gtx480s system is already very loud, so what does it matter.

Temps have reached 78c at 4.4ghz in load, primme95 blend. i just turned ac on to cool a little because i use a 50inch plasma as screen so that adds heat in the room.

.

I used cpu pll 1.31v, should i test everything again with 1.81v?

Im using bios 0003 .

What do you think about this cpu? is it a good one, average or bad? batch number is 3045A709 .

 

[tinytomlogan]

Swiftech h20-320 watercooling, 6 2000rpm fans in push pull, at full power, i guessed with 3 gtx480s system is already very loud, so what does it matter.

Temps have reached 78c at 4.4ghz in load, primme95 blend. i just turned ac on to cool a little because i use a 50inch plasma as screen so that adds heat in the room.

.

I used cpu pll 1.31v, should i test everything again with 1.81v?

Im using bios 0003 .

What do you think about this cpu? is it a good one, average or bad? batch number is 3045A709 .

Use OCCT. and the PLL should auto set to 1.8v. Just leave it on auto for now.

78c with watercooling doesnt sound right tbh. I get better temps on air

 

[TomoVK]

Im testing 4.6 now, i got 30 mins on prime95 blend, ill play with occt later, but it took 1.46v in bios, thats 1.449 idle, and 1.422v - 1.415v - 1.409v - 1.402v in load (cpu-z). And failed as i wrote this on testing 10k. Thats a little high, what do you think? As for temps, i just dont know, i dont get it, i had 47C idle and 85C under load with my 930 as well, at 4.2ghz, so this isnt bad to me actually, but i would like it to be lower if i knew how. I use mx-3 thermal paste. I have my radiatore and fans fastened to the back of my case, i have thermaltake xaser VI. Had much trouble when installing the radiator.

 

[tinytomlogan]

Im testing 4.6 now, i got 30 mins on prime95 blend, ill play with occt later, but it took 1.46v in bios, thats 1.449 idle, and 1.422v - 1.415v - 1.409v - 1.402v in load (cpu-z). And failed as i wrote this on testing 10k. Thats a little high, what do you think? As for temps, i just dont know, i dont get it, i had 47C idle and 85C under load with my 930 as well, at 4.2ghz, so this isnt bad to me actually, but i would like it to be lower if i knew how. I use mx-3 thermal paste. I have my radiatore and fans fastened to the back of my case, i have thermaltake xaser VI. Had much trouble when installing the radiator.

You probably havnt got the air out of the loop matey. This is why you are meant to learn the basics before spanking a load of cash on somethingthing you dont know what your doing with!

Turn on load line calibration and your voltages should settle.

BTW Thermaltacky case and a 990x? Shame on you. Get a proper case.

 

[TomoVK]

You probably havnt got the air out of the loop matey. This is why you are meant to learn the basics before spanking a load of cash on somethingthing you dont know what your doing with!

Turn on load line calibration and your voltages should settle.

BTW Thermaltacky case and a 990x? Shame on you. Get a proper case.

Set to 100% loadline calibration?

I assembled my watercooling 3 times, 1 when i got it, 2nd time when i bought the NB waterblock, and 3rd time now when i got the 990x, i never have seen air in the tubing after i filled the system up to the full reservoir, i put water in, start the pump, stop the pump, put more water in, and repeat until the water level in the reservoir does not drop, and the reservoir is full (that is like they say in the manual).

I dont see any bubbles in the tubing, reservoir is full, how do i get the air out of the system?

Im thinking about corsair 800D, but to be honest, i like my case.

 

[Aurus_OC]

Tilt the case in order to get them to move around quicker. By doing that you should see bubbles coming out of your CPU block.

 

[TomoVK]

Tilt the case in order to get them to move around quicker. By doing that you should see bubbles coming out of your CPU block.

Tilting the case with the system turned on, am i right?

 

[TomoVK]

What do you think about using loadline calibration on rampage III extreme? If i need 1.4v vcore under load, is it better for the cpu if i set 50% LLC, and the idle voltage is higher, dropping on load, or set 100% LLC, and have lower voltage in idle, so it climbs to 1.4v on load?

 

[tinytomlogan]

What do you think about using loadline calibration on rampage III extreme? If i need 1.4v vcore under load, is it better for the cpu if i set 50% LLC, and the idle voltage is higher, dropping on load, or set 100% LLC, and have lower voltage in idle, so it climbs to 1.4v on load?

How about you test it and see what works for you?