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1090T - Faulty 1GHz OC - Page 2

post #11 of 15
My CPU/NB is 1.325V and I hit 3GHz NB speed.


By the way, if you need so much voltage for your chip to reach 4.2GHz, maybe it's not the best idea to attempt it.

Go for conservative clocks as much people here do.
3.6GHz on 1.3-1.325 V is much more than enough. It'll keep your chip cooler, your power bill cheaper, and will make your system last much longer.
   
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post #12 of 15
Quote:
Originally Posted by MostWanted095 View Post
I'm afraid I require all 3 sticks of memory to be present and due to my H70 the removal would take time.

Did as you said, except I've had to bump up the voltages up to 1.525 - which still resulted in Prime95 failed calculation tests (if it's any use: all of them appear on CPU#6). Any way to get around that with out memory removal ?
That p95 failure is because of CPU/NB voltage and/or RAM voltage. You can have that error even if one of those voltages is set higher than needed.

What you can do is

Keep your CPU freq. @ 4.2GHz
CPU/NB & HT link @ 1940
RAM @ 1280, Timings AUTO
all voltages AUTO
CPU volt. 1.525V
Keep LLC enabled

Run IBT 10 times. If pass lower your CPU volt til crash(to figure out your CPU volt for 4.2GHz)
After that you can continue with CPU/NB and RAM overclock
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post #13 of 15
Thread Starter 
Quote:
Originally Posted by Chuckclc View Post
You are probably stable with less volts, but these chips are very unstable when temps go over 56C or so.
From what I know the critical for 1090T's is 62c (correct me if I'm wrong). IOSEFINI's recommendation gave me 4,2GHz with core temperatures not exceeding 50c. Before I give up hope I'm going to play with voltages a little to decrease the CPU temperature.

Quote:
Originally Posted by IOSEFINI View Post
What you can do is

Keep your CPU freq. @ 4.2GHz
CPU/NB & HT link @ 1940
RAM @ 1280, Timings AUTO
all voltages AUTO
CPU volt. 1.525V
Keep LLC enabled

Run IBT 10 times. If pass lower your CPU volt til crash(to figure out your CPU volt for 4.2GHz)
After that you can continue with CPU/NB and RAM overclock
I'll try that as well.
Edited by MostWanted095 - 2/14/11 at 3:58pm
post #14 of 15
Quote:
Originally Posted by Artikbot View Post
My CPU/NB is 1.325V and I hit 3GHz NB speed.


By the way, if you need so much voltage for your chip to reach 4.2GHz, maybe it's not the best idea to attempt it.

Go for conservative clocks as much people here do.
3.6GHz on 1.3-1.325 V is much more than enough. It'll keep your chip cooler, your power bill cheaper, and will make your system last much longer.
Better cooling system ---> lower volts
I needed 1.20V(1.22v full load) for 3GHz NB speed, and 1.30625V(1.33-1.34V full load) for 4GHz CPU speed
Edited by IOSEFINI - 2/14/11 at 4:03pm
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post #15 of 15
Thread Starter 
CPU Stabilized with 1.5375V, Core temps do not go over 40c. I never fought that such a small OV can generate that much heat. Last thing to do is pop back up the memory and NB;
btw. I require 1.2V to get my NB up to 2750MHz, increasing it above that was to ensure that wasn't the case of calculation errors. I'll give feedback in a while once I'm done.

Edit:
I've finally got the CPU stabilized at 4,2GHz. From 30 mins of stress testing I've done the core temperatures never cross over 45c. (averages from 40-43)
Once again thank you very much for help.
Edited by MostWanted095 - 2/14/11 at 4:50pm
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