Overclocking, my current results. - Page 2

Feek · 23-08-2007, 06:24

The result of an overnight run..

Don't believe the CPU Speed, it doesn't read correctly. The reason it says the time has changed since the start is because I'm anal about clock accuracy and run a utility to sync the clock every hour.

Temps are rather nice.

Davey_Pitch · 23-08-2007, 08:25

Nice

I'm looking forward to trying to overclock my E6750 when I get it, not overclocked any of my CPU's for some time.

Toby · 23-08-2007, 09:29

Nice clock. My E6850 is happy as larry at 3.6Ghz atm but doesn't want to go any higher without major voltage hikes which in turn means daft temps and/or noisy cooling.

Am keeping an eye on the new G0 Q6600s to see what they can do and might switch but, if I'm honest, I have no need for a quad core at the mo, dual does everything I need.

Mark · 23-08-2007, 13:08

Feek, is that temperature a core temperature or a junction temperature? Core 2 Duo CPUs have three temperature sensors - one on each core and one on the casing (junction).

The reason I ask is because most software that doesn't know about this reads the junction temperature, which is typically 10-15C lower than the core temperature.

To give you an idea, my stock E6600 has Tjunc of 34C, TcoreA of 45C, and TcoreB of 44C. It's not particularly critical though as I believe these chips are rated well into the 70s, if not 80s.

PS - recent versions of SpeedFan seem to know about the core sensors.

Stan_Lite · 23-08-2007, 14:41

Nice going Feek.

That's roughly as far as I got my E6600 at stock volts (3.15GHz iirc) - if you get it much further, I'll be jealous and impressed at the same time

Mark is right in what he says regarding the core temperatures but as I said in my PM, these CPUs are quite happy up to about 85C and I doubt very much if you'll ever put anywhere near as much strain on it as Orthos does so your normal working temperature will be much lower.

11% oveclock on the RAM with 0.1 or 0.2V to spare is a good result too.

Good work dude

Mark · 23-08-2007, 15:05

Anyone prepared to teach me the ways of overclocking the DS3/DS4 boards then? I only have cheapo PC6400 RAM in mine so going beyond stock RAM speeds is out, but everythine else is fair game.

Toby · 23-08-2007, 15:25

PC6400 is good up to 400Mhz FSB speed. As even the latest C2D processors are only 333Mhz and most are 266Mhz, you have loads of headroom to increase your FSB. Basically just slowly crank up the FSB speed in the BIOS, testing for stability as you go with stressing programs like Orthos and Prime95, checking temps too with things like CoreTemp or Speedfan.

Mark · 23-08-2007, 15:26

Well, it's a Linux box, which means I'd have to find a Linux-based stress tool first, I guess.

Daz · 23-08-2007, 15:31

lm-sensors?

Stan_Lite · 23-08-2007, 15:38

The E6600 is 266MHz BUS speed with a 9X multiplier. If you have a recent BIOS version, you should be able to lower the multiplier (you won't be able to go above 9 but you should be able to go as low as 6).

If you want to keep your RAM and FSB in sync, I would drop the multiplier to 7 or 8 (if your RAM won't overclock) and start upping the BUS speed as Vertigo1 suggests. If you raise the BUS speed to 400 to match the spec of your RAM you would get a clock speed of 2.8GHz on a 7X multiplier (should do that no problem) or 3.2GHz on an 8X multipier (probably pushing it a bit).

23-08-2007, 06:24	#11
Feek ex SAS Join Date: Jun 2006 Location: JO01ou Posts: 10,062	The result of an overnight run.. Don't believe the CPU Speed, it doesn't read correctly. The reason it says the time has changed since the start is because I'm anal about clock accuracy and run a utility to sync the clock every hour. Temps are rather nice. __________________

23-08-2007, 08:25	#12
Davey_Pitch I iz speshul Join Date: Jun 2006 Location: Liverpool Posts: 6,296	Nice I'm looking forward to trying to overclock my E6750 when I get it, not overclocked any of my CPU's for some time. __________________ Our deepest fear is not that we are inadequate. Our deepest fear is that we are powerful beyond measure. It is our light, not our darkness, that most frightens us. Your playing small does not serve the world. There is nothing enlightened about shrinking so that other people won't feel insecure around you. We are all meant to shine as children do. It's not just in some of us; it is in everyone. And as we let our own lights shine, we unconsciously give other people permission to do the same. As we are liberated from our own fear, our presence automatically liberates others.

23-08-2007, 09:29	#13
Toby Absinthe Join Date: Aug 2007 Posts: 1,023	Nice clock. My E6850 is happy as larry at 3.6Ghz atm but doesn't want to go any higher without major voltage hikes which in turn means daft temps and/or noisy cooling. Am keeping an eye on the new G0 Q6600s to see what they can do and might switch but, if I'm honest, I have no need for a quad core at the mo, dual does everything I need. __________________

23-08-2007, 13:08	#14
Mark Screaming Orgasm Join Date: Jul 2006 Location: Newbury Posts: 15,194	Feek, is that temperature a core temperature or a junction temperature? Core 2 Duo CPUs have three temperature sensors - one on each core and one on the casing (junction). The reason I ask is because most software that doesn't know about this reads the junction temperature, which is typically 10-15C lower than the core temperature. To give you an idea, my stock E6600 has Tjunc of 34C, TcoreA of 45C, and TcoreB of 44C. It's not particularly critical though as I believe these chips are rated well into the 70s, if not 80s. PS - recent versions of SpeedFan seem to know about the core sensors. Last edited by Mark; 23-08-2007 at 13:11.

23-08-2007, 14:41	#15
Stan_Lite Stan, Stan the FLASHER MAN! Join Date: Jul 2006 Location: In bed with your sister Posts: 5,483	Nice going Feek. That's roughly as far as I got my E6600 at stock volts (3.15GHz iirc) - if you get it much further, I'll be jealous and impressed at the same time Mark is right in what he says regarding the core temperatures but as I said in my PM, these CPUs are quite happy up to about 85C and I doubt very much if you'll ever put anywhere near as much strain on it as Orthos does so your normal working temperature will be much lower. 11% oveclock on the RAM with 0.1 or 0.2V to spare is a good result too. Good work dude __________________ Just because I have a short attention span doesn't mean I...

23-08-2007, 15:05	#16
Mark Screaming Orgasm Join Date: Jul 2006 Location: Newbury Posts: 15,194	Anyone prepared to teach me the ways of overclocking the DS3/DS4 boards then? I only have cheapo PC6400 RAM in mine so going beyond stock RAM speeds is out, but everythine else is fair game.

23-08-2007, 15:25	#17
Toby Absinthe Join Date: Aug 2007 Posts: 1,023	PC6400 is good up to 400Mhz FSB speed. As even the latest C2D processors are only 333Mhz and most are 266Mhz, you have loads of headroom to increase your FSB. Basically just slowly crank up the FSB speed in the BIOS, testing for stability as you go with stressing programs like Orthos and Prime95, checking temps too with things like CoreTemp or Speedfan. __________________

23-08-2007, 15:26	#18
Mark Screaming Orgasm Join Date: Jul 2006 Location: Newbury Posts: 15,194	Well, it's a Linux box, which means I'd have to find a Linux-based stress tool first, I guess.

23-08-2007, 15:31	#19
Daz The Stig Join Date: Jun 2006 Location: Swad! Posts: 10,713	lm-sensors? __________________ apt-get moo

23-08-2007, 15:38	#20
Stan_Lite Stan, Stan the FLASHER MAN! Join Date: Jul 2006 Location: In bed with your sister Posts: 5,483	The E6600 is 266MHz BUS speed with a 9X multiplier. If you have a recent BIOS version, you should be able to lower the multiplier (you won't be able to go above 9 but you should be able to go as low as 6). If you want to keep your RAM and FSB in sync, I would drop the multiplier to 7 or 8 (if your RAM won't overclock) and start upping the BUS speed as Vertigo1 suggests. If you raise the BUS speed to 400 to match the spec of your RAM you would get a clock speed of 2.8GHz on a 7X multiplier (should do that no problem) or 3.2GHz on an 8X multipier (probably pushing it a bit). __________________ Just because I have a short attention span doesn't mean I...