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Should I push on to 4.0ghz - Page 4

post #31 of 41
Thread Starter 
Alright so far so good, p95 blend has been running now for 40 minutes and none of the workers have stopped or anything else has gone wrong.
CPU temp has hit 64c and is holding steady there, core temp is hovering at 53-54c, core voltage is showing 1.392 in CPU-Z now.
I will run this blend for around 8 hours (I have to turn it off before i go to work), should be able to get a 24 hour test in on the weekend hopefully.

Thank you very much for hanging with me tonight returned4good you have been a great help and I am happy to have learned more about OC'ing from you. + rep for you mate.
I'll let you know how it panned out in 24 hours or so.
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post #32 of 41
Quote:
Originally Posted by damocash View Post
Alright so far so good, p95 blend has been running now for 40 minutes and none of the workers have stopped or anything else has gone wrong.
CPU temp has hit 64c and is holding steady there, core temp is hovering at 53-54c, core voltage is showing 1.392 in CPU-Z now.
I will run this blend for around 8 hours (I have to turn it off before i go to work), should be able to get a 24 hour test in on the weekend hopefully.

Thank you very much for hanging with me tonight returned4good you have been a great help and I am happy to have learned more about OC'ing from you. + rep for you mate.
I'll let you know how it panned out in 24 hours or so.
Awesome! The temps are a little high for my taste, but I'm glad you're stable! Remember that this chip tends to give false core temp readings ( around 10 degrees lower than actual). If it stands the long testing, maybe you can bump it down a little. You always want the lowest possible voltage while remaining stable.

For this level of OCing, I'd actually use a bigger heatsink (120mm or bigger), but you'd see an improvement with higher CFM fans, also. Cheaper that route, anyways.
Edited by returned4good - 10/4/11 at 3:43am
post #33 of 41
Quote:
Originally Posted by 0x62 0x70 View Post
I don't think that board has any LLC options (from what I've been reading on this forum). The main complaint is having to set a relatively high core voltage (VCORE) to offset the voltage droop. If you can't get it stable without heating up the core close to the limit (62C), then I suggest just go back to your last OC and work on your CPU/NB settings.
I got a noticeable bump from upping my CPU/NB settings.
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post #34 of 41
Quote:
Originally Posted by damocash View Post
CPU temp has hit 64c and is holding steady there, core temp is hovering at 53-54c
Ignore "CPU Temp", it's not accurate under load, your hitting 53-54C "Core Temp" and this is your actual temp at load. It's under the 62C "Core Temp" limit as well as 60C for extended periods so your fine.

See my guide for more information.
post #35 of 41
Thread Starter 
Quote:
Originally Posted by ALUCARDVPR View Post
Ignore "CPU Temp", it's not accurate under load, your hitting 53-54C "Core Temp" and this is your actual temp at load. It's under the 62C "Core Temp" limit as well as 60C for extended periods so your fine.

See my guide for more information.
Thank you, the guide and its corresponding sources contained extremely clear and well defined information.
Now i am stable at 4.0 I'm going to have a little bit of a play with my northbridge speed.
Has anyone got any tips or advice for me please?
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post #36 of 41
Just the usual basics of OCing. Up frequency, then up voltage if necessary. You can usually hit as high as 2600mhz on stock voltage with that series of boards.

Also, I wouldn't trust the core temps reported for a Thuban. Do a basic Google search on that and you'll see the general consensus on that subject in regards to inaccuracies.
Edited by returned4good - 10/4/11 at 10:05pm
post #37 of 41
Quote:
Originally Posted by damocash View Post
Thank you, the guide and its corresponding sources contained extremely clear and well defined information.
Now i am stable at 4.0 I'm going to have a little bit of a play with my northbridge speed.
Has anyone got any tips or advice for me please?
Your welcome.

Overclock CPU-NB as high as you get get it (DDR3). 2600Mhz to 3000Mhz is good for 4GHZ.
For each 10% you increase the CPU-NB speed, memory bandwidth is increased 3-4% and latency is reduced 3-4%.
Minimum is 3x base speed of RAM:
Example: 800Mhz Base (1600Mhz RAM) x 3 = 2400Mhz CPU-NB
May need CPU-NB voltage bump to increase higher.
post #38 of 41
If it ain't on fire you can go higher!

But your temps are rubbish. My temps at 4.0ghz during Prime95 blend are 44*c. And your cooler is supposed to be equal to if not better than mine. What are your ambients?
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post #39 of 41
Quote:
Originally Posted by ALUCARDVPR View Post
Ignore "CPU Temp", it's not accurate under load, your hitting 53-54C "Core Temp" and this is your actual temp at load. It's under the 62C "Core Temp" limit as well as 60C for extended periods so your fine.

See my guide for more information.
Oooh, thanks for that guide, +rep.

I'd suspect poor case air flow or high ambient temps for the high chip temps, or possibly a bad heatsink mount.

Edit: Yeah, one exhaust fan as stock. You need some intake fans on the case, preferably more intakes than exhausts. Positive pressure almost always gives the best cooling.
Edited by allikat - 10/4/11 at 10:16pm
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post #40 of 41
Thread Starter 
Ok I hit the same voltage as what i have set for my cpu, (1.50) and tried to run 3.0 ghz off the bat but ended up with no POST.
At 2.8 I posted but was unable to load windows.
Am now at 2.6.
Quote:
Originally Posted by allikat View Post
Oooh, thanks for that guide, +rep.

I'd suspect poor case air flow or high ambient temps for the high chip temps, or possibly a bad heatsink mount.

Edit: Yeah, one exhaust fan as stock. You need some intake fans on the case, preferably more intakes than exhausts. Positive pressure almost always gives the best cooling.
I have 5 120mm case fans 2 intake 3 exhaust and I have freed up airflow as much as possible give the lack of cable management in my case.

Quote:
Originally Posted by returned4good View Post
Just the usual basics of OCing. Up frequency, then up voltage if necessary. You can usually hit as high as 2600mhz on stock voltage with that series of boards.

Also, I wouldn't trust the core temps reported for a Thuban. Do a basic Google search on that and you'll see the general consensus on that subject in regards to inaccuracies.
I have done this and have noted the discrepencys between readings and reality.

Quote:
Originally Posted by Erick Silver View Post
If it ain't on fire you can go higher!

But your temps are rubbish. My temps at 4.0ghz during Prime95 blend are 44*c. And your cooler is supposed to be equal to if not better than mine. What are your ambients?
Between 20 and 30c
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