New to Intel Core 2 OCing: E8400+P5Q Pro setup

[cp#]

I am currently running:
Core 2 Duo E8400 + AC Freezer 7 Pro
ASUS P5Q Pro with Ketxxx's modded 1004 BIOS
OCZ DDR2-800 rated 4-4-4-15 @ 2.1V (link)
AMD HD4850 @ 700/1000 + AC Accelero S1 (w/ 120mm fan)
OCZ GameXstream 600W ATX12 PSU

I got a BSOD (memory dump) on my first attempt but after setting the memory speed from "Auto" to "DDR2-801" (DDR2-800) it booted just fine.
I'm currently at 3.6 Ghz (400 FSB) and Prime95 stable for 10 hours straight. I've ran it a few times while out of the house for 3-5 hours with no problems, either.

Here is CPU-Z


My BIOS settings are the following...
CPU:
Multiplier set to 9x
FSB set to 400
PCI-E locked at 100
CPU voltage set to AUTO: CPU-Z currently reads 1.264V, what should I set my voltage to? What is the stock E8400 voltage?
C1E Support: Disabled
Max CPUID Value Limit: Disabled
Intel Virtualization Tech: Disabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
Load Line Calibration: Disabled
Execute Disable Bit: Disabled

Memory:
Manually set to 4-4-4-15 (as per specifications.. I've heard it can run at 4-4-4-12)
Memory voltage set to 2.1V (as per specifications)
FSB Strap to North Bridge: AUTO
All other memory settings/timings set to AUTO

Also,
CPU PLL Voltage?
FSB Termination Voltage?
NB/SB Voltages?

I am sure this card will reach 4Ghz+, but I'm unsure of the voltages necessary. My temperatures with the ACF7P are 43/37 idle and 59/57 MAX. Load temps were generally from 51-56 for either core.

I am probably going to return the ACF7P and get a Xigmatek HDT-S1283 because I am unhappy with the F7P temperatures and the noise. It is currently locked at 2800 RPM with no way to control it other than enabling Q-Fan. Speedfan doesn't work. It is the loudest fan in my case (Antec 900 with FIVE 120mm fans and the giant 200mm fan)

 

[boogah]

what is your goal with your machine ? You want highest speed or do you want stable 24/7 gaming speed ?

http://valid.x86-secret.com/show_oc.php?id=391959 << my benching speed.

i run at 4.2 stable. and 4.0 for normal 24/7 setting.

You should be able to hit 4.0 (1800 FSB) on stock or just a tad over stock voltage. for 4.2 and up you will need alot higher voltage to get there which means heat.

Run core temp and see what the VID is on your CPU so the voltage for higher clock can be calculated.

 

[cp#]

what is your goal with your machine ? You want highest speed or do you want stable 24/7 gaming speed ?

http://valid.x86-secret.com/show_oc.php?id=391959 << my benching speed.

i run at 4.2 stable. and 4.0 for normal 24/7 setting.

You should be able to hit 4.0 (1800 FSB) on stock or just a tad over stock voltage. for 4.2 and up you will need alot higher voltage to get there which means heat.

Run core temp and see what the VID is on your CPU so the voltage for higher clock can be calculated.

Core Temps tells me my VID is 1.2250 V

You'll also notice that CPU-Z incorrectly identifies my memory as DDR3 on the "Memory" tab

 

[boogah]

your VID is quite good should be able to hit 4.2 at 1.385 V on the CPU.

you might need better cooling though my cpu is 36C idle 55C load running the duorb on 100% pretty quiet.

 

[cp#]

Right, I just ordered the Xigmatek HDT-S1283 and the mounting bracket.. (stupid push pins)

 

[cp#]

On boot up, when the first Vista loading screen appears (link), I will sporadically get a BSOD. My PC resets after the BSOD and will then boot up fine. Usually it boots up fine but it will sporadically BSOD (memory dump and whatnot). CPU voltage is set to 1.25V and 400x9. It passes Prime95 and Everest Stress test no problems for hours and hours. I have my RAM at the rated speeds (4-4-4-15 @ 2.1V) and have passed hours and hours of memtest (I have memtest running right now while I'm out). I have no idea what the problem could be except for voltage - but even then, I would expect instability in Prime and gaming

 

[FilipM]

On my box on my cpu it says max 1.25V, I set it to that and I hit 3.7Ghz with it stable that is 411FSB x 9

 

[MoeDaKilla]

Have you tried overclocking with an unmodded BIOS. I haven't use Ket's BIOS, but I suggest using the stock BIOS and seeing how it goes. What are your NB, FSB termination, and CPU PLL voltages set to?

 

[MoeDaKilla]

And you should check the voltage because that memory needs 2.2 V

 

[cp#]

And you should check the voltage because that memory needs 2.2 V

I'm positive it's rated for 2.1V

The other voltages you mentioned are set to auto.. I have no idea what they should be.

Thanks for the replies

 

[MoeDaKilla]

The CPU-z link under the Memory tab for EPP Profile said 2.2 V. Try givin ur mem modules 2.2 V and see how that helps and have u tried oc'in with stock BIOS. If it still gives u problems, then u can start changin the other voltages I previously mentioned.

 

[cp#]

CPU-Z also identifies the RAM as DDR3 under one of the tabs - it is wrong.

Here is the official OCZ site with info on my RAM: http://www.ocztechnology.com/products/memory/ocz_ddr2_pc2_6400_reaper_cl4_4gb_edition

800MHz DDR2
4-4-4-15 (CAS-TRCD-TRP-TRAS)
Available in 4GB (2x2048MB)Dual Channel Kits
Unbuffered
OCZ Lifetime Warranty
2.1 Volts
240 Pin DIMM
Patent-pending Reaper HPC Heatsink*
2.15V EVP** - This would be the MAX voltage OCZ would cover under warranty
EPP-Ready

Can you tell me more about the other voltages?

Should I enable "Load Line Calibration" or any of the other features I disabled?

 

[LiveOrDie]

stock vcore is 1.25v set it to 1.3v turn auto off because it will up your vcore to much and it will get hotter than it needs to, and try my fsb 1778 that 4Ghz

 

[LiveOrDie]

turn back on Intel Virtualization Tech and Execute Disable Bit i have them on all the rest i don't so what do you want out of your chip? and EPP sticks are rated at 2.1v and 2.2v

 

[cp#]

I want to get a stable 24/7 4Ghz if it won't kill the CPU and I want to knock out this BSOD I'm seeing sometimes. My PC is for daily gaming and typical use

 

[LiveOrDie]

1.3 vcore is fine for 24/7 gaming uses running at 4Ghz,thats what mines on, what you need to do is get your ram stable you need to lock your ram on 800Mhz because when you overclock it overclocks your ram to, and set your fsb on 444

 

[cp#]

I'll be mounting my new Xigmatek cooler later tonight, I'll try these settings afterward. Thanks again.

 

[cp#]

Tried hitting 4Ghz without increasing voltage: 444x9 @ 1.25V. Did not post (I wasn't really expecting it too)

Backed FSB down to 422x9 good for 3.8Ghz @ 1.25V, booted into Windows.
Error in Prime so I rebooted and went back to 400x9

I will try 1.3V at 444x9. Talk to me about FSB Termination voltage and CPU VTT

My RAM is rated for DDR2-800 4-4-4-15 @ 2.1V, when I up the FSB there is no way to change the multiplier so it will end up running at DDR-889, is this safe?

 

[sneekypeet]

BTW I just posted this in another thread. Look at the real temp section and see what Unclewebb has to say about "safe" opperating temps on the 45nm CPU's.

I understand changing a cooler based on noise, but maybe just a quieter fan is needed, since temps really dont matter much with these newer CPU's!

Edit: just saw the Xig purchase...good for you, but still temps would be my last concern with these CPU's from what I've seen. Most CPU's will fail orthos due to instability before the temps cause shut down issues!

 

[cp#]

My temps are very good, 46 on each core under prime load according to Realtemp

 

[blTb]

I have almost the same config.
Got 4.3 GHz w/ my E8400 @ 1.45V.

And... P5Q Pro is awesome! My Pariot Viper RAM finally works @ EPP mode and even more! I can run it @1066 w/ 1.9V instead of 2.3 or @1200 w/ 2.2V!!!

CPU temps are:
Idle: 40C
100% Load: 53C

Now I'm trying to beat 4.5GHz on air.