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Discussion Starter #1
My rig is running stable at 350x10.5

I am trying to get to 533x7

Here is what I have done so far:

411x9 boots and seems to run stable.

436x8.5 boots all the way into Ubuntu then starts to act up. When ever I do something graphics intensive it craps out. Funny thing is it does not always crash all the way. Sometimes it just kills whatever window you just opened. Othertimes the graphics go all crazy. It does the same thing @ 463x8.

Does this sound like a problem with my graphics card? Or have I missed a setting in my BIOS (maybe need more volts for the NB?)

Here are my settings:

CPU Ratio 8
FSB 436
PCIE 100
FSB Strap to NB auto
Dram freq 872
Dram Timing auto
5-5-5-15-3-54-6-3
8-3-5-4-6-4-7
14-5-1-6-6
Dram static read Disabled
Dram Read training Disabled
Mem Oc Charger Auto
AI Clock Twister Auto
AI Transaction Booster Auto
CPu Voltage 1.375
Cpu Gtl ref auto
Cpu PLL volts 1.50
FSB term volts 1.14
dram volts auto
NB volts 1.24
SB volts auto
PCIE sata volts auto
Load Line Calibration enabled
cpu spread spec disabled
pcie spread spec disabled
cpu clock skew standard
nb clock skew standard
cpu margin enhance optimize

C1E support disabled
max CPUID Value disabled
CPU TM funct Disabled
Execute Disable Bit Enabled
 

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I would set the multiplier to max and then just start increasing the FSB and if it's unstable, try with higher voltages.
 

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533 for a fsb is pretty high.

try maxing out the multiplier and then keep making the fsb higher as long as it's stable. and raise your nb voltage too
 

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Discussion Starter #5
Quote:


so you are trying to get a 533fsb with 1.24v on the NB??? not gonna happen try something more like 1.4-1.45

I will try this when I get home. Is this safe with a 45nm processor?

Quote:


I would set the multiplier to max and then just start increasing the FSB and if it's unstable, try with higher voltages.

I have already done this 350x10.5 is where i'm stuck at.

I have been told that sometimes it helps to max out your fsb at the same ghz.
Supposedly once you get it stable at the higher fsb you can go back to the lower fsb and higher multi and go a little further. Has anyone else heard of this?
 

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Also take your memory voltage off auto and set it to whatever the mfg requires. I know my OCZ mem takes 2.1v but the auto setting ends up feeding it 1.8v - not going to cut it!

Max NB voltage depends on the NB its self, not the processor. I don't know for sure what a P45's max is, but shouldn't be hard to find
 

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Quote:


Originally Posted by shughard
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I will try this when I get home. Is this safe with a 45nm processor?

I have already done this 350x10.5 is where i'm stuck at.

I have been told that sometimes it helps to max out your fsb at the same ghz.
Supposedly once you get it stable at the higher fsb you can go back to the lower fsb and higher multi and go a little further. Has anyone else heard of this?

well first off the NB voltage is only gonna hurt the MOBO and you would be well within the safe range at the voltages i suggested. In response to your second statement i would say that typically a higher voltage will be required to run the same cpu speed if using a lower multi and a higher fsb. that being the case you should see a slight increase in OC potential with a higher multi given the voltage restrictions of a 45nm CPU.
 

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Discussion Starter #8
my vdimm is set at 2.1v per OCZ specs I just forgot to update my specs. I learn about that this morning.

Thank you everyone who is posting to help me. I love overclocking so far. It is almost better than switching to Ubuntu.

I am at work now I can't wait to get home.

One more question. When my new cooler gets here I am considering trying more vcore to get above 3.7ghz. What do you guys think the max safe vcore is for my E7400?
 

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Discussion Starter #10
Many thanks to Microman I'm now running stable @ 463x8 I will try to go further tomorrow. I have some downloads I don't want to stop.

Here are my new settings:

CPU Ratio 8
FSB 463
PCIE 100
FSB Strap to NB auto
Dram freq 926
Dram Timing auto
5-5-5-15-3-54-6-3
8-3-5-4-6-4-7
14-5-1-6-6
Dram static read Disabled
Dram Read training Disabled
Mem Oc Charger Auto
AI Clock Twister Auto
AI Transaction Booster Auto
CPu Voltage 1.375
Cpu Gtl ref auto
Cpu PLL volts 1.50
FSB term volts 1.18
dram volts 2.14
NB volts 1.42
SB volts auto
PCIE sata volts auto
Load Line Calibration enabled
cpu spread spec disabled
pcie spread spec disabled
cpu clock skew standard
nb clock skew standard
cpu margin enhance optimize

C1E support disabled
max CPUID Value disabled
CPU TM funct Disabled
Execute Disable Bit Enabled
 
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