Intel Core 2 Duo E6700 Optimal Settings?

Gr3yH4m3 · Feb 19, 2017

That's my Speccy.

A terrible and old PC, I know. It's second hand, too. I'm saving up for new parts so I can replace pretty much everything and move it up to DDR4.

In the meantime, however, I'd like a bit more oomph. I've just clocked it to 400 I think (hence why the CPU is now on 80°C...). I'm completely new to overclocking BTW. I tried to put it at 600 but it wouldn't boot so I reset CMOS and took it down a notch.

I'd like to know what the optimal overclocking is for everything on my PC. I've just maxed the clock on my GPU but I don't think that'll be too good for it's health.

If you need to know my BIOS or anything so you know what I can manipulate overclock-wise, just ask.

Many thanks,
Alex.

EDIT:
P.S: Is RAM clockable?
P.P.S: The CPU temperature has dropped to <60°C now.

Ironsounds · Feb 19, 2017

Hello... Basically these old CPU's/chipsets clocked with FSB setting... But which also means the Memory Speed was also affected with a change... so typically as a result or OC'ng the FSB your MB/BIO's memory settings will need to down clock for the increase, because memory does not OC very well (no massive heatsinks or fans on them).

My experience with the LGA775 was about 365 MHz max with a Q9450 2.66 GHz 1333 MHz FSB CPU, and still have good temps and DDR2 800 1T memory operation. You can see in your img above that your memory is only running at 660MHZ. But you also have a 1033 FSB 3.2 GHz CPU. B / So right now your MB BIO's has re-set to a safe setting from the previous failed OC settings... you need to first get into your BIO's re-set it for 3.2GHz operation (save&exit)... report/post back your screen image AND FSB once you get back.

http://ark.intel.com/products/42809/Intel-Pentium-Processor-E6700-2M-Cache-3_20-GHz-1066-FSB

Also there is separate Chip on your MB the "North bridge/memory controller" that will get very HOT... at 365-? MHZ... and LGA775 over clockers would be using a beefer heatsink and/or fan for it... So being NEW to OCng means you will be adding higher Heat stress to your MB components... and heat is directly related to the lifetime of a electronic product. Heat/Temps will always dictate your OC settings... you can get some amazing speeds using the right cooling technics in the right places. B )

Gr3yH4m3 · Feb 19, 2017

Ironsounds :

Ok, so, I didn't understand a lot of what you said. I am a nerd, but not of the hardware kind. I only got into hardware about a year ago and the phrase "get into it" is questionable because I know so little about the subject. I can program you whatever you like but hardware is out of my depth.

Here's the new photo

I changed the CPU clock to 320 but like I said, hardware isn't my strong suit so I don't know if I did the right thing.

Ironsounds · Feb 20, 2017

Hello... I gave you wrong intel spec sheet... you do have a 2.66GHz CPU and you have stock setting now... with 320Mhz FSB? what is your CPU Multiplier set at?
http://ark.intel.com/products/27251/Intel-Core2-Duo-Processor-E6700-4M-Cache-2_66-GHz-1066-MHz-FSB

1) Ok here's the math... 2xDDR2Mhz= Ram speed... you are running at 800Mhz good B )
2) You have a CPU multiplier... the stock setting should be x10... Look at your current setting in the BIO's for it?
3) 2.66GHz CPU /multiplier=FSB ...Stock for your CPU should be 2.66/10=266 FSB.
4) here is Documented OC procedure for your CPU, memory settings, and BIO's settings they used... I want you to watch your CPU temps, as that CPU has a LOW Tcase@60.1C (not a great OC CPU choice?)
5) lowing/raising the stock CPU voltage will lower/raise temps... finding the lowest "Stable" voltage/freq, will help hit a target freq without excessive heat from using too much voltage.

http://www.cpu-world.com/sspec/SL/SL9ZF.html

Here is a example of someone using the math with his Core 2 Duo E6700...
https://hardforum.com/threads/e6700-266x10-vs-333x8-raising-the-fsb.1413435/

for example 300 FSB X 10 CPU multiplier = 3.0 GHz CPU

lordmogul · Mar 1, 2017

They are actually great overclockers. Reaching well beyond 4 GHz and 400 FSB on the upper end chips.

You will be most likely limited by the G31 chipset on your motherboard. it usually has a so called FSB wall around 340-350 MHz.

Here an example what is possible:
Quad core @ 4.1 GHz with 8 GB DDR2 @ 456 MHz/912 DDR and 456 MHz FSB
(Don't be confused by it being a Xeon and is listed as LGA771, it''s pinmodded to work on LGA775 like an odinary Core 2 Quad. The chip is most comperable to a Q9700)

Gr3yH4m3 · Mar 6, 2017

Ironsounds :

Hello... I gave you wrong intel spec sheet... you do have a 2.66GHz CPU and you have stock setting now... with 320Mhz FSB? what is your CPU Multiplier set at?
http://ark.intel.com/products/27251/Intel-Core2-Duo-Processor-E6700-4M-Cache-2_66-GHz-1066-MHz-FSB

1) Ok here's the math... 2xDDR2Mhz= Ram speed... you are running at 800Mhz good B )
2) You have a CPU multiplier... the stock setting should be x10... Look at your current setting in the BIO's for it?
3) 2.66GHz CPU /multiplier=FSB ...Stock for your CPU should be 2.66/10=266 FSB.
4) here is Documented OC procedure for your CPU, memory settings, and BIO's settings they used... I want you to watch your CPU temps, as that CPU has a LOW Tcase@60.1C (not a great OC CPU choice?)
5) lowing/raising the stock CPU voltage will lower/raise temps... finding the lowest "Stable" voltage/freq, will help hit a target freq without excessive heat from using too much voltage.

http://www.cpu-world.com/sspec/SL/SL9ZF.html

Here is a example of someone using the math with his Core 2 Duo E6700...
https://hardforum.com/threads/e6700-266x10-vs-333x8-raising-the-fsb.1413435/

for example 300 FSB X 10 CPU multiplier = 3.0 GHz CPU

Yeah I have no idea what to do with any of that information.

What should I set the clocks to in my BIOS? That's all I can really control or understand, so yeah.

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