HELP! Overclocking failed... on ASUS P5B Premium & Q6600@2.4Ghz

[AirZeee]

Still too hot if you ask me. Mine never goes above 62c and my room it hot in the summer(84f).
I'm using a Sunbeam CC freezer.

I expect you're right, I just stopped the torture test, 74degrees C max, 16hours 36 minutes, 0 errors, 0 warnings. Gonna reboot & try out your suggested settings. The Vcore voltage was 1.26-1.3v during the test. Think i'll read up on manual voltages now, i want to reduce that temparature.

 

[AirZeee]

Wow 95c ouchie

Do at .333 CPU multiplier, and manually set your CPU voltage to 1.275 (give or take a little depending on what you are stable at. You should stay at the lowest possible voltage). Manually set your Ram to 5-5-5-18 at factory recommended voltage settings with a 5:6 multiplier and that will give you 800 mhz speed.

Your voltages and timings should ALWAYS be set manually when you overclock. And disable all the processor speedstep junk (which im sure you already read).

That is a really comfortable overclock for your setup - it shouldn't be pushing your system too hard at all. When you do prime95 for 24 hours your temps should be well below 65°C.

I have the exact timings and voltages I listed above, and I saw 61°C after 24hour prime 95 on one core only... over 65-70 is too hot by most people's standards, even the enthusiast.

At this point your graphics card is bottlenecking you at 3ghz anyway - I wouldn't try to throttle your system any more untill you are about ready to upgrade or you put a better graphics card in to utilize the cpu speed.

1.275 vcore is currently maxing at 65degrees during stress testing. need to work out how to do the ratios, i suspect this should lower the temperature further. TEsting is clean so far anyway 🙂

 

[AirZeee]

But you never answered, whats your VID?

How do I calculate/find the VID?

 

[Mite_a]

Spec:
Windows XP SP3 (used for home music production)
ASUS P5B Premium Mobo
Intel Core2 Quad CPU Q6600@2.4 Ghz (I believe it was the G0 revision of this CPU)
2x2Gb Corsair XMS2 DDR2 PC6400 800Mhz, 5-5-5-18, 1.8v ver 3.4
Nvidia Geforce 8800 GTS OC

Can anyone offer any advice on OCing this setup? I'm a Noob to OCing, read through loads of tutorials putting things into practice, but got nowhere. This mobo comes with AI Suite, which includes "AI NOS" (ASUS Non-delay Overclocking System) ("AI NOS will monitor CPU demands and o verclock the system automatically" - my arse does it, it just crashes the PC when stress tested) and "AI Booster" ("A utility to do overclocking" I.E. a fancy windows GUI for altering the BIOS settings)

I've spent the last 3 days trying to get this to play nice, i'm familiar with the BIOS setings (not sure about the Vcore settings i'd need though).

i'm hoping to OC this CPU up to Max 3.4Ghz, although less will be ok. If this is unrealistic, then someone please let me know! The supplied kit only OC's up to an extra 20% (2.8Ghz), well it would if it worked... :lol:

I've frequently had "overclocking failed!F1 to enter setup... F2 to load defaults" appear after crashed attempts to Boot, usually after a POST failure.

I followed through GRAYSKY's how to OC Thread on here, made sense etc, just didn't seem to work. I'm pretty sure i'm not doing something, or doing something wrong, but just don't know what. Surely leaveing the VCore on AUTO initially should be ok?

Any help would be appreciated, general abuse would probably be taken with a chuckle too!

Thanks PPL

to get to 3.4ghz you should need a Vcore of 1.42volts so dont be scared to play around with voltages and if in your motherboard their is a way to overclock north bridge do so dont leave it on auto and dont use any AI overclocking tools their bullshit

 

[AirZeee]

to get to 3.4ghz you should need a Vcore of 1.42volts so dont be scared to play around with voltages and if in your motherboard their is a way to overclock north bridge do so dont leave it on auto and dont use any AI overclocking tools their bullshit

Cheers, i'm happy running it at 3Ghz. Had it up to 3.6Ghz, but was unstable. My Mobo doesn't appear to like going asynchronous with the FSB: D RAM frequencies, i'll stick a list up later. Been finding the lowest stable vcore voltage, think i've craqcked that so i can move on to the others..

I'll list my resulting settings when i finish with it so that someone with a similar set up might save a bit of time. Good learning curve so far though 😀

 

[AirZeee]

CPU-z displays your VID.

I couldn't see it anywhere, I can see Core Voltage. Never mind, Core Temp 0.99.5 reports the VID as 1.2500v, CPU-Z 1.52.2 reports the Core voltage as 1.160v, and HW monitor Pro reports Vcore as 1.16v current, 0.38v minimum (i guess a big vdroop was going on there, prior to stress test) and 1.20v max (these are quoted during stress testing with prime95), althought he BIOS setting for Vcore is 1.2375v

Pretty sure i've nailed a stable setup now, all voltages are on manual settings (most on the lowest available) but i'll add a post reinterating my setup specs & the voltages etc i've used to achieve the OC i'm happy with. It's been stable for 17 hours at full load, maximum heat & power consumption, and hasn't gone above 68degrees C. Full load operating temperature drops to (max) 60degrees C when i throttle the case fans to max airflow (cores #2 & #3 max at 57degrees C)

I only have 80mm case fans, i plan on upgrading the rear case fan to 120-140mm as it has space & fixtures already in place, which means i'll can add this to the existing 80mm fan at the front of the case. This would fill all the designed spaces, although i'm considering adding an extra fan into the internal access panel to force air onto the GPU. This side panel already has a vent in the region of the GPU, plus a fan blowing onto the (fan cooled) CPU heatsink. This is an Artic Cooling Freezer Pro 7.
As i'm not a hardcore gamer, and the software I use for making music only stresses the CPU when things are getting quite busy & poorly managed (repeatedly generating audio rather than just playing it back for example), there is little point in investing in a liquid cooling system. I might look at that optin for future systems, but i'm also on limited financial resources at the moment, so it'll wait.

Just wanted to thank you guys for your help again, I know how frustrating teaching noobs can be, I really appreciated the hand holding.

Cheers 🙂

 

[AirZeee]

Your VID is 1.25v, just as I thought. Which means your should overclock much better than my Q6700 which has a VID of 1.325.

Wanna trade? I bet I could get that baby stable at 3.6 on my mobo. JK

LoL, thanks but no. It OC'd to 3.6 here, before i started manually adjusting things. on auto it put the cores up to 95degrees then the thermal trip tripped.... might have a go to see why i can come up with anyway.

 

[AirZeee]

Spec:
Windows XP SP3
ASUS P5B Premium Motherboard
Intel Core2 Quad CPU Q6600@2.4 Ghz, revision G0
cooled by Artic Cooling Freezer Pro 7
2x2Gb Corsair XMS2 DDR2 PC6400 800Mhz, 5-5-5-18, 1.8v ver 3.4
Nvidia Geforce 8800 GTS OC 320Mb
PSU is Corsair HX620w Modular Power Supply.

Successfully Overclocked to 3.0Ghz using the following BIOS settings:
Advanced>JumperFree Configuration:

AI Tuning Manual
CPU Frequency 333
DRAM Frequency DDR2-667Mhz (1:1 ratio)
PCI Express Frequency 100
PCI Clock Sync 33.33Mhz
Spread Spectrum Auto
Memory Voltage 1.80v *
CPU VCore Voltage 1.2375v
FSB Termination Voltage 1.200v **
NB VCore 1.25v **
SB VCore 1.50v **
ICH Chipset Voltage 1.057v **

If I insisted on reaching 800Mhz with my DRAM frequency, i'd only be able to overclock to 2.88Ghz, using FSB of 320Mhz, at a 4:5 Ratio. However, breaching the 800Mhz to 833Mhz would yield a 4:5 ratio FSB: DRAM 333:833. I might check this for stability later.
4:5

Other Settings:
Advanced> CPU Configuration:

CPU Ratio Adjustment Manual
- Ratio CMOS Setting 9
C1E Support Enabled
Max CPUID Value Limit Disabled (for windowsXP)
Vanderpool Technology Disabled (i don't use VMWare)
CPU TM Function Enabled
Execute Disable Bit Enabled
PECI Enabled <<<msybr disble this??

Advanced> Chipset> North Bridge Configuration

Memory Remap Feature Enabled (allows the use of more than 3Gb with 32bit O/S)
Configure DRAM Timing by SPD Disabled (This allows entry of manufacturers ratings)
- DRAM CAS# Latency 5 DRAM Clocks *
- DRAM RAS# to CAS# Delay 5 DRAM Clocks *
- DRAM RAS# Precharge 5 DRAM Clocks *
- DRAM RAS# Activate to Precha 18 DRAM Clocks * (5-5-5-18)
- DRAM TRFC 42 DRAM Clocks ***
- DRAM TRRD 10 ***
- Rank Write to Read Delay 10 ***
- Read to Precharge Delay 10 ***
- Write to Precharge Delay 11 ***
Static Read Control Auto ***


* As per the manufacturers spec
** Lowest available settings
*** I left these unchanged (I think)

Torture Tested with Prim95 (Large FFT's), Stable for 24 hours, 3 minutes - 0 errors, 0 warnings.
Max Core Temp at full load & case fans on low - 68degrees Centigrade, this drops to 60degrees Centigrade with case fans on full.

 

[Adroid]

Once again if your mobo has a setting of 5:6 for the ram, that will = 800 mhz @ .333 multiplier you using.

 

[AirZeee]

Once again if your mobo has a setting of 5:6 for the ram, that will = 800 mhz @ .333 multiplier you using.

Cheers, it doesn't have 5:6. Closest match was 4:5 which pushes the DRAM freq to 833Mhz. Now when i was fumbling in the dark, i was accidentally pushing my 800Mhz DRAM up, as i'd not realised the relationship, so i might get away with the extra 33Mhz, but i'd bet it'd make the system unstable. i might check it out for arguments sake 😀