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Having a couple of issues that don't add up?

post #1 of 12
Thread Starter 
the story thus far

Ok I have my CPU/Frequency Overclocked to 300MHz @ 1.3v

My CPU is clocked at 3750.2 MHz @ 1.424v(I think this is too much, correct me if I'm wrong)

I also have 4 x 2GB Ripjaws F3-12800CL8D @ 1600MHz on 1.65v

Now I guess the question is; does 1.424v for the CPUv seem a bit high for the clocks I have for me to go from 3.6 to 3.750 took 2 or 3 bumps in the CPUv.

But here is the thing I have received a couple of ram dumps in the process to getting these clocks, which would normally mean that it's a RAM issue.
But by me upping the CPUv it seemed to fix it up a bit, but I have a feeling I am looking at the wrong thing.

I know that the extra 2 DIMM modules would be stressing the IMC but should I first be looking at the CPU/NB voltage to increase stability or is it that I should be looking to increasing the ram voltage.

Is there something that I am overlooking ?

Any help would be greatly appreciated, thanks in advance.
post #2 of 12
http://www.overclock.net/amd-cpus/10...l#post13833244
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post #3 of 12
Phenom II CPU maximum safe Vcore is 1.55v, but that ensues extra heat and the max is 62 Celsius for them. They enjoy the cold very much.

Edit: What are your exact BIOS settings for your OC's? Is your HT-Link running at 2000 MHz
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post #4 of 12
Thread Starter 
Quote:
Originally Posted by That Guy View Post
Phenom II CPU maximum safe Vcore is 1.55v, but that ensues extra heat and the max is 62 Celsius for them. They enjoy the cold very much.

Edit: What are your exact BIOS settings for your OC's? Is your HT-Link running at 2000 MHz
Most of those settings are dialed in.

I am very familiar with AMD safety perimeters, the HT and the CPU/NB are 2100MHz.

and heat is at about 44-46 depending on the ambient.

Bios settings are as follows:

CPUv: 1.424v
NB: 1.3v
RAM: 1.65v
Cpu/NB: 1.2v

HT multi:x7
CPU-NB multi:x7

So I may need to drop the CPU/NB and the HT one more step.

@ Atomfix: I don't think at the rate I'm going that 4.0 is feasible @ 1.45v
Edited by smash_mouth01 - 6/11/11 at 7:23am
post #5 of 12
Quote:
Originally Posted by smash_mouth01 View Post
Most of those settings are dialed in.

I am very familiar with AMD safety perimeters, the HT and the CPU/NB are 2100MHz.

and heat is at about 44-46 depending on the ambient.

@ Atomfix: I don't think at the rate I'm going that 4.0 is feasible @ 1.45v
You might have to try 1.47V for 4.0GHz on a 790FX motherboard then, I had a lot of difficulty keeping 4.0GHz at 24/7 stable with my old 790FX mobo, but switching to a 890FX CHIV IV, it was easy and much lower voltages too.

I would try to aim and stick to 3800MHz it's still plenty of speed
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post #6 of 12
Quote:
Originally Posted by smash_mouth01 View Post
Most of those settings are dialed in.

I am very familiar with AMD safety perimeters, the HT and the CPU/NB are 2100MHz.

and heat is at about 44-46 depending on the ambient.

Bios settings are as follows:

CPUv: 1.424v
NB: 1.3v
RAM: 1.65v
Cpu/NB: 1.2v

HT multi:x7
CPU-NB multi:x7

So I may need to drop the CPU/NB and the HT one more step.

@ Atomfix: I don't think at the rate I'm going that 4.0 is feasible @ 1.45v
HT link at 2100MHz,

Take Northbridge to 3000MHz with 1.37V on the CPU-NB and 1.47V on the CPU for 4.0GHz
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post #7 of 12
Quote:
Originally Posted by smash_mouth01 View Post
Most of those settings are dialed in.

I am very familiar with AMD safety perimeters, the HT and the CPU/NB are 2100MHz.

and heat is at about 44-46 depending on the ambient.

Bios settings are as follows:

CPUv: 1.424v
NB: 1.3v
RAM: 1.65v
Cpu/NB: 1.2v

HT multi:x7
CPU-NB multi:x7

So I may need to drop the CPU/NB and the HT one more step.

@ Atomfix: I don't think at the rate I'm going that 4.0 is feasible @ 1.45v
Try a little more Vcore voltage and see if that works. You have plenty of breathing room, as you know, in that aspect. You may not have a good OCer.
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post #8 of 12
Thread Starter 
I't wouldn't even boot @ 4.0 GHz even at 1.55v
post #9 of 12
Quote:
Originally Posted by smash_mouth01 View Post
I't wouldn't even boot @ 4.0 GHz even at 1.55v
Put 1.7V onto your memory 1600MHz CL 7-8-7-24-28 1T

1.25V on your Northbridge or 1.3V

SB/HT 1.22V

CPU-NB 1.4V Try that one :thumb

1.52V CPU
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The Ancient
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post #10 of 12
Thread Starter 
Quote:
Originally Posted by Atomfix View Post
Put 1.7V onto your memory 1600MHz CL 7-8-7-24-28 1T

1.25V on your Northbridge or 1.3V

SB/HT 1.22V

CPU-NB 1.4V Try that one :thumb

1.52V CPU
OK,

This is how it is.

CPU: 3900 MHz, 300 X 13 @ 1.488-1.5v
CPU-NB: 1800 MHz
Ram: 300x 5.33 @ 1.68v

NB: @ 1.3v
HTT/FSB:300 (I am thinking of dropping back down to 285-286 MHz)
HT: 1800 MHz
SB-HTv: normal


I am going to have a muck about, what does get me about this particular chip is that it could sit all day long at 3GHz @ 1.86-1.2v. I would of thought it would of clocked better.
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