Overclocking Advice needed from the pro's

the80sroklej

the80sroklej

the80sroklej

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Joined
29 Jan 2008
Posts
10
Hi there,
I’m new to OC and was wondering if any of you knowledgeable people could assist me ? :D

Specs:
ASUS P5KC (BIOS: 0804)
2.20Ghz Conroe dual (x11)
2x 1Gb DDR2-800 GEIL CL 4-4-4-12


I’ve been reading up on the OC scene and attempted to OC my Conroe.

I run the Prime95 for about 20-30 mins after each change and 250mhz (2.76Ghz) seems fine and I ran 3DMark03 which was also fine.

The Problem
I’ve upped the FSB now to 250mhz, anything above this either doesn’t load into windows (restarting) or when it does, restarts after running stress tests.

As I’m new to this, I’m guessing some settings need to be corrected in order to allow me to OC further.

CPU FSB: 250Mhz (multiplier just left on auto x11)
RAM: 375Mhz
PCIe: 100Mhz


My Settings are below:

AI Overclocking Manual
CPU Ratio Control Auto
FSB Frequency 250
PCIE Frequency 100
DRAM DDR2-625Mhz
DRAM Timing Control manual
CAS# Latency 5
RAS to CAS# Delay 5 DRAM Clocks
RAS Percentage 5 DRAM Clocks
RAS# Activate Percentage15 DRAM Clocks
TWR Auto
TRFC Auto
TWTR Auto
TRRD Auto
TRTP Auto
DRAM Static Read ControlAuto
DRAM Dynamic Write Con Auto

Transaction Booster Auto
Clock Over-Charging ModeAuto

CPU Spread Spectrum Disabled
PCIE Spread Spectrum Disabled

CPU Voltage Auto
CPU Voltage Reference Auto
CPU Voltage Damper Auto
CPU PLL Voltage Auto
DRAM Voltage 1.9v
FSB Termination Voltage Auto



Temperatures Haven’t changed as of yet, both my thermal controller Probes give about 29-31C readings, of course these aren’t accurate but it gives me an idea of what to compare it with. (Using an ASUS heatpipe Heatsink with a Thermaltake 80mm fan capable of 80CFM on max)

Also, I haven’t quite grasped the RAM Ratios, also, would it be advisable to run the ram at 4-4-4-12 as to 5-5-5-15 ?

Here's some screenys:

cpu.JPG
ram.JPG

spd.JPG
 
Hey Pneumonic,
Thanks for the reply. I dont recall having an option in the BIOS called FSB to Northbridge Strap, I just checked and there doesn't appear to be this setting :(

Unless im being silly and its called something else?

I had alook at your screen shot and its the 3rd one down on your BIOS.

What do you recommend i change the DRAM too ? It's currently on 625Mhz

Cheers for your help :cool:
 
I am petty certain the board has the option, change everything from Auto to Manual until you find it..

whilst clocking set you RAM timmings to 5-5-5-23, 625 mhz is fine... once you have a stable clock you can tighten the timmings
 
All I seem to be able to find concerned with the NB is:

North Bridge voltage (which is set to auto but other options are 1.25v, 1.40v, 1.55v and 1.70v)

North Bridge Voltage Reference (set to auto, other options are 0.67x and 0.61x)



Also, what is a recommended DRAM Voltage, I set mine to 1.9V. The ram is rated 1.9-2.0v i thought lower would be better at this stage ?

only thing in the NB chipset config is : Memory Remap Feature

sound like anything to do with it ? Options are Enabled or Disabled (Enabled at the mo)
 
hmm maybe the board doesnt have it.. or not that BIOS version... tbh I had one a while back was pretty certain it did but maybe it doesnt!

RAM is ok to leave at 1.9 although no harm in putting it up to 2... if that is the GeIL 800mhz Ultra Low Latency Stuff.. I can do 2.1 with no issue..

tbh that CPU should be pretty safe for 3ghz easy, set the multi to 10, FSB to 300 and vcore to 1.3v
 
Ah that be the problem, Loaded up windows fine, Just running Prime95 now....

when running the "In-Place larger FFTs I got an error almost instantly:

Worker Thread #1 gave error:

FATAL ERROR: Rouding was 0.5, expected less than 0.4
Hardware Failure detected, consult stress.txt file.

When running the "Small FFTs it rstarts

when running the Blend it seems fine
 
ok that just means that it needs more cpu volts, raise the CPU voltage by 1 notch in the BIOS and try again.. keep doing this until it will run 3-4 hours of prime without failing.. you also want to run Small FFTs for CPU stability testing

also whilst you are running prime you need to keep an eye on the CPU load temps.. have core temp loaded up so you can see what they are doing
 
Hey,

I've got the same board and E2180 with ddr2 666MHz (800MHz OCZ platinum is coming tomorow).
Atm running at 333x9 stable with 1.375v, when i up multyplier to ten and vcore to 1.450 i'll get error in ortho in bout a min or so. Haven't tried to raise vcore more as tomorow i'll be ocing again anyway. :) Also the temp got to 55 with my AC freezer 7 pro. I've got 0903 bios, theres a new one 1001 which i'll flash b4 installing new ram as it got "Enhance compatibility with certain memory module."

The80sroklej set this two values in his bios to

CPU Spread Spectrum Disabled
PCIE Spread Spectrum Disabled

I got them enabled. Could some1 explain to me what they do?

My goal is to have it running at 400x9. Even at 400x8 i'll be pretty happy. :)

Thanks a lot.

Ok i did some research on google bout the spectrums and found that it's better to disable them.
 
Last edited:
The80sroklej, if your RAM is that with the orange heatspreaders, then you've picked well.

The kit allows you up to 2.2v (i suggest fan cooling if possible :)) and if you set 2.2v you can take it all the way up to 920 at 4-4-4-12.

Don't muck around with CL5 (5-x-x-x) or volts any higher than 2.2v, it's not worth it and clocks worse.

2.2v / 900-920 Mhz / 4-4-4-12 is definitely the sweet spot. :)

Enjoy :)
 
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