P5N32-E SLi Overclocking..or not.

NoAngel

NoAngel

NoAngel

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23 Feb 2007
Posts
11
Location
Midlands
Hi all, new here and I will confess all, I know nothing about overclocking. It's one of those black art things which I have always thought about doing but never had the nuts to do. Anyways I have just brought a new rig and have been told that I should clock it cause it has a lot of potential. So now I want to get the maximum I can speed wise for my money.

I have been reading lots of this so had a go, and just after a few small changes my PC won't boot into windows anymore. So I reloaded the BIOS defaults and its seems ok again now but I am after so idiot steps before I have another go.

Spec:
mobo: ASUS P5N32-E Sli
cpu: E6300
cooling: Artic Freezer Pro 7
ram: TwinX 2GB XMS DDR2 Corsair 6400 C4
vga: 2 x 320MB XFX 8800 GTS (SLi config)
psu: Enermax Infinity 720W
hdd: Seagate 250GB SATAII (mirrored)
case: Antec P180

As I say its back to factory standard at the moment so any advice and steps for a newbie would go down well...!

Cheers NA
 
Just as an Extra thought, a couple of things.

I have downloaded CPU-Z, Core Temp, SpeedFan & Prime95 for testeding. I also have ASUS PC Probe II and NVidia nTune.

Also not sure if you need them or not but in the overclocking section the BIOS settings are as follows:

Extreme Tweakers
AI Tuning - MANUAL
Overclocking Options - DISABLED
N.O.S. Option - DISABLED

System Clocks
PCIEX16_1 Freq (MHz) - 100
PCIEX16_2 Freq (MHz) - 100
PCIEX16_3 Freq (MHz) - 100
SPP<->Ref Clock, MHz - AUTO

FSB & Memory Config
FSB - Memory Clock Mode - AUTO
FSB - Memory Ratio - AUTO
FSB (QDR), MHz - AUTO
Actual FSB (QDR), MHz - 1066.7
FSB (DDR), MHz - AUTO
Actual FSB (DDR), MHz - 800

Overclocking
CPU Type - Intel ® Core™2 CPU
CPU Speed - 1.86GHz
Cache RAM - 2048K
CPU Multiplier - 7

Memory Timings
tCL (CAS Latency - AUTO
tRCD - AUTO
tRP - AUTO
tRAS - AUTO
Command Per Clock (CMD) - AUTO
tRRD - AUTO
tRC - AUTO
tWR - AUTO
tWTR - AUTO
tREF - AUTO
tRD - AUTO
tRFC - AUTO
Async Latency - AUTO

Spread Spectrum Control
CPU Spread Spectrum - ENABLED
PCIE Spread Spectrum - ENABLED
MCP PCIE Spread Spectrum - ENABLED
SATA Spread Spectrum - DISABLED
LDT Spread Spectrum - ENABLED

CPU Internal Thermal Control - DISABLED
Limit CPUID MaxVal - DISABLED
Enhanced C1 (CE1) - DISABLED
Execute Disable Bit - ENABLED
Virtualization Technology - ENABLED
Enhanced Intel SpeedStep™ Tech. - DISABLED
LDT Frequency - 5x

Over Voltage
Vcore Voltage - AUTO
Memory Voltage - AUTO
1.2 HT Voltage - AUTO
NB Core Voltage - AUTO
SB Core Voltage - AUTO
CPU VTT Voltage - AUTO
DDRII Controller Ref Voltage - AUTO
DDRII Channel A Ref Voltage - AUTO
DDRII Channel B Ref Voltage - AUTO

SLI Broadcast Aperture - DISABLED
NVIDIA GPU Ex - DISABLED
LinkBoost - ENABLED

SLI-Ready Memory - DISABLED


NA
 
Yeah go for it.
You should be able to get some good speeds with that setup.

How come you knew to get all that premium type kit when you purchased you system and didn't just buy the cheapest stuff if you dont know anything about overclocking?
 
Thanks for the reply

benskia said:
Yeah go for it.
You should be able to get some good speeds with that setup.

How come you knew to get all that premium type kit when you purchased you system and didn't just buy the cheapest stuff if you dont know anything about overclocking?
Click to expand...

Research from the forms and advice from some people I work with. They do overclocking themselves but I don't like to keep asking, hence I felt this was the best way forwards. Just don't know what steps to take now. I have this nice PC sitting here still running at factory spec.
 
Need to use orthos not prime 95 as orthos is a dual core stabilty program and prime 95 is single core. :)
 
Hi all, still no further on than before, it seems as soon as I start changing the settings from auto to fixed values, it just won't boot anymore. Really could do with some advice of where I am going so wrong. NA
 
Update, now running at 2600 MHz (Rated FSB 1500MHz)

Temps
33 C no load
54-56 C full load
(fans are not at max speed settings either)

Tested on Dual Prime95's and Orthos and is running stable.

Tried 400 MHz and system wouldn’t boot. I have left all the BIOS voltage to default, as with the memory settings. I think the voltages are holding me back as when bench testing I get the odd error for over and under voltages. Any advice to get 2.8GHz would be greatly appreciated.

Current BIOS setup is:

Extreme Tweakers
AI Tuning - MANUAL
Overclocking Options - DISABLED
N.O.S. Option - DISABLED

System Clocks
PCIEX16_1 Freq (MHz) - 100
PCIEX16_2 Freq (MHz) - 100
PCIEX16_3 Freq (MHz) - 100
SPP<->Ref Clock, MHz - AUTO

FSB & Memory Config
FSB - Memory Clock Mode - UNLINKED
FSB - Memory Ratio - AUTO
FSB (QDR), MHz - 1500
Actual FSB (QDR), MHz - 1500
FSB (DDR), MHz - 800
Actual FSB (DDR), MHz - 800

Overclocking
CPU Type - Intel ® Core™2 CPU
CPU Speed - 1.86GHz
Cache RAM - 2048K
CPU Multiplier - 7

Memory Timings
tCL (CAS Latency - AUTO
tRCD - AUTO
tRP - AUTO
tRAS - AUTO
Command Per Clock (CMD) - AUTO
tRRD - AUTO
tRC - AUTO
tWR - AUTO
tWTR - AUTO
tREF - AUTO
tRD - AUTO
tRFC - AUTO
Async Latency - AUTO

Spread Spectrum Control
CPU Spread Spectrum - DISABLED
PCIE Spread Spectrum - DISABLED
MCP PCIE Spread Spectrum - DISABLED
SATA Spread Spectrum - DISABLED
LDT Spread Spectrum - DISABLED

CPU Internal Thermal Control - ENABLED
Limit CPUID MaxVal - DISABLED
Enhanced C1 (CE1) - DISABLED
Execute Disable Bit - ENABLED
Virtualization Technology - DISABLED
Enhanced Intel SpeedStep™ Tech. - DISABLED
LDT Frequency - 5x

Over Voltage
Vcore Voltage - AUTO
Memory Voltage - AUTO
1.2 HT Voltage - AUTO
NB Core Voltage - AUTO
SB Core Voltage - AUTO
CPU VTT Voltage - AUTO
DDRII Controller Ref Voltage - AUTO
DDRII Channel A Ref Voltage - AUTO
DDRII Channel B Ref Voltage - AUTO

SLI Broadcast Aperture - DISABLED
NVIDIA GPU Ex - DISABLED
LinkBoost - DISABLED

SLI-Ready Memory - DISABLED


NA
 
your setup is nearly the same as mine, I'm stuck at 3.1ghz, the NB get stupidly hot, could post about 2.5ghz without 120 blowing on NB (NB doesnt like 1.6v but needs 1.5-1.55v for OC'ing
 
arfur said:
your setup is nearly the same as mine, I'm stuck at 3.1ghz, the NB get stupidly hot, could post about 2.5ghz without 120 blowing on NB (NB doesnt like 1.6v but needs 1.5-1.55v for OC'ing
Click to expand...

With all the voltages at Auto they are running at with no load:

VCore - 1.42 V
+3.3 - 3.23 V
+5.0 - 4.97 V
+12.0 - 11.90 V
1.2VHT - 1.26 V
SB Core - 1.54 V
CPU VTT - 1.36 V
NB Core - 1.34 V
Memory - 1.90 V

THey dont seem to change any at full load. Should I change these and set them to manual? How do I check the temp on the NB?

Do I get the CPU clock stable before i start messing with the memory and PCI-E speeds?
 
Just looking at these two settingsm, should I have enabled or disabled to get the best of the machine with the 8800 in SLi

NVIDIA GPU Ex
LinkBoost

NA
 
Just enabled them both, has changed the 1.2VHT and SB Core V to run higher, is this a good or bad thing?

1.2VHT - 1.52 V
SB Core - 1.73 V

Fails on dual Prime95 too, so I am guessing needs to be disabled...?


NA
 
Got my 6600 at 3.3 on that motherboard.

I'd lower your 1.2 VTT to 1.3
And you need to increase the CPU VTT as this affects the oc a lot it seems:

fsb 1475
multi 9x
vcore 1.35
1.2VTT 1.3
mem 1.9
NB 1.3
SB 1.5
CPU VTT 1.45

Edit: of course its a different chip so you may not be able to get that speed, just try the volts and see what happens.
 
You should disable the option - execute disable bit. This lets the cpu reduce multiplier and volts when idle, and you don't want that when overclocking.
 
spb251272 said:
You should disable the option - execute disable bit. This lets the cpu reduce multiplier and volts when idle, and you don't want that when overclocking.
Click to expand...

Its speedstep which does that. Exec disable bit is :

Intel's Execute Disable Bit (XD) functionality can prevent certain classes of malicious buffer overflow attacks when combined with a supporting operating system. It allows the processor to classify areas in memory by where application code can execute and where it cannot. When a malicious worm attempts to insert code in the buffer, the processor disables code execution, preventing damage or worm propagation.

Intel's Execute Disable Bit functionality was first released for the Intel Itanium processor family in 2001.
 
so which of these should be disabled and enabled..?

Execute Disable Bit
Enhanced Intel SpeedStep™ Tech.

Wow this OCing is a whole new world to me.
 
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