Overclocking my E8400

godinman

godinman

godinman

Soldato
Joined
26 Feb 2007
Posts
8,573
Hello,

So i'm having a bit of trouble overclocking my 8400, I had it up to around 3.9Ghz, and I thought everything was fine, checked it all on Prime for an hour on all tests and it passed ok. But then I had a few problems with the machine freezing up, and the occasional BSOD. I retested it and the Small FFT test passed fine after 3 hours, but Large FFT froze the machine overnight (not sure how long it was on for) and blend gave me a BSOD.

I'm running,

E8400
Asus P5Q Deulxe
2 x 2gig Dominator Ram
Caviar Black 640GB HDD
Noctua cooler (with two noctua fans in push/pull.

The max temps I was reaching after an hour or so were 60degrees (according to coretemp).

Here are my BIOS settings

http://i175.photobucket.com/albums/w154/godinman_photos/First411.jpg

http://i175.photobucket.com/albums/w154/godinman_photos/First412.jpg

http://i175.photobucket.com/albums/w154/godinman_photos/First413.jpg


Any ideas what settings I should change to get it more stable? I'm assuming, because its Blend and Large FFT which are failing its something to do with the ram?

BTW I took off that ridiculous Corsair fan thingy, complete rubbish and noisy!


Thanks for an help:D
 
RAM settings are ok.What real vcore you have got in Windows?
You should disable C1E and EIST in BIOS.
You can try up the vcore - max safe is 1.36-38v (real - Cpuz) - I wouldn't go higher for 24/7
 
I know absolutely nothing about overclocking at the moment, i've just started overclocking my e8400 myself - hence i'm keeping an eye on this thread

The only thing i did want to mention was that the two noctua fans your using on your heatsink arn't actually very good for what your using them for... they're excellent at pushing air around the case, but they have crap static pressure, which means they suffer when up against radiators/heatsinks etc.

Just thought i'd mention it, maybe swapping your fans would give you an extra degree or two :)
 
I've been running 1.44 vcore on my 38500 under a TRUE... Temps around 60... Feel free to push higher to get a stable overclock then bring it down bit by bit.
 
Gone2mars said:
I know absolutely nothing about overclocking at the moment, i've just started overclocking my e8400 myself - hence i'm keeping an eye on this thread

The only thing i did want to mention was that the two noctua fans your using on your heatsink arn't actually very good for what your using them for... they're excellent at pushing air around the case, but they have crap static pressure, which means they suffer when up against radiators/heatsinks etc.

Just thought i'd mention it, maybe swapping your fans would give you an extra degree or two :)
Click to expand...

If they're the NF-P12 type fans then it is designed for maximum static pressure next to radiator fins.
I have only one on mine, but it is a thermalright ultra 120, and it is keeping myine nice and chilled.
http://i77.photobucket.com/albums/j45/eomer888/MYPC/DSCN1593.jpg
 
While the NF-S12 was optimized so as to provide a class-leading airflow to noise ratio in the lower speed ranges and therefore makes for an excellent case fan, the NF-P12 was designed to produce high airflow and an outstanding amount of static pressure, which makes it perfect for use on CPU coolers and other high-impedance applications

Yup - Your correct :)
 
By the way, i'm now a little bit more clued up on overclocking this board, i'm no expert so i'm only sharing what i've noted down for my overclock in a few days:

NB Voltage: 1.1 – 1.20. (up to 1.30 for a 4ghz overclock)
can be [AUTO] if the FSB is below 400MHz, rising to 1.3V for 400-500MHz and a maximum of 1.4V for 500MHz and above (Quote from Intel)

Yours is 1.36 even tho your only running a 3.9ghz OC.


Also, the board overvolts it's RAM by 0.08 (a couple of forums have confirmed this). meaning your sending 2.34 volts through it. I'm assuming its 2.1 - 2.2 rated ram.


Again, i'm no expert at all, i've just been researching the same board for the last few days and its what i've noticed.

Also for your info, the following template *Should* give you a 4ghz overclock according to another forum. This is the template i'm basing my overclock on but i'm yet to try.


JumperFree Configuration Settings:
AI Overclock tuner: Manual
CPU Ratio Setting: 9
FSB Strap to North Bridge: Auto
FSB Frequency: 445
PCI-E Frequency: 100
DRAM Frequency: DDR2-1069
DRAM CLK Skew on Channel A1: AUTO
DRAM CLK Skew on Channel A2: AUTO
DRAM CLK Skew on Channel B1: AUTO
DRAM CLK Skew on Channel B2: AUTO
DRAM Timing Control: Auto

1st Information :

CAS# Latency: 5
DRAM RAS# to CAS# Delay: 5
DRAM RAS# Precharge: 5
DRAM RAS# Activate to Precharge: 15
RAS# to RAS# Delay : AUTO
Row Refresh Cycle Time: 55
Write Recovery Time: AUTO
Read to Precharge Time: AUTO

2nd Information :

READ to WRITE Delay (S/D): AUTO
Write to Read Delay (S): AUTO
WRITE to READ Delay (D): AUTO
READ to READ Delay (S): AUTO
READ to READ Delay (D): AUTO
WRITE to WRITE Delay (S): AUTO
WRITE to WRITE Delay (D): AUTO

3rd Information :

WRITE to PRE Delay: AUTO
READ to PRE Delay: AUTO
PRE to PRE Delay: AUTO
ALL PRE to ACT Delay: AUTO
ALL PRE to REF Delay: AUTO
DRAM Static Read Control: Disabled
DRAM Read Training: Disabled
MEM. OC Charger: Enabled
AI Clock Twister: Auto
AI Transaction Booster: Auto
Common Performance Level [10] If I set previous to manual this one is at 5
Pull-In of CHA PH1: DISABLED
Pull-In of CHA PH2: DISABLED
Pull-In of CHA PH3: DISABLED
Pull-In of CHA PH4: DISABLED
Pull-In of CHB PH1: DISABLED
Pull-In of CHB PH2: DISABLED
Pull-In of CHB PH3: DISABLED
Pull-In of CHB PH4: DISABLED

CPU Voltage: 1.37500
CPU GTL Voltage Reference (0/2): AUTO
CPU GTL Voltage Reference (1/3): AUTO
CPU PLL Voltage: 1.52
FSB Termination Voltage: AUTO
DRAM Voltage: 2.1
NB Voltage: 1.30
NB GTL Reference: AUTO
SBridge Voltage: 1.20
PCIE SATA Voltage: 1.50

Load Line Calibration: Enabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
CPU Clock Skew : Auto
NB Clock Skew : Auto
CPU Margin Enhancement: Optimized

Advance CPU Settings
CPU Ratio Setting: 9
CPU VID: Default Don't have this option
C1E Suppport: Disabled
Max CPUID Value Limit: Disabled
Intel® Virtualization Tech: Disabled
Vanderpool Technology: Disabled (dont have this either)
CPU TM Function: Enabled
Execute Disable Bit: Enabled



Good luck :)
 
Oh ... and the person that was using the settings finally achieved his 4.2 overclock with the following changes (based on the settings above)

CPU Ratio = 8
FSB Frequency = 525
FSB strap to North Bridge = Auto
DRAM Frequency = 1002

CPU Voltage = 1.37500 (you may be able to lower the Vcc, depending on the VID of your chip)
CPU PLL = Auto
FSB Term = Auto
DRAM Voltage = 2.1
NB Voltage = Try at AUTO (1.1), and no more than 1.3

Load Line Cal. = Enabled
CPU Spread Spectrum = Disabled
PCI-E Spread Spectrum = Disabled

CPU Clock Skew = Auto (you could also try 400)
NB Clock Skew = Auto (you could also try 100)


Again i'm just passing on my findings, i'm going to use a my own template based on these settings and slowly build up to it ... suggest you do the same ;)
 
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