core2quad multiplier

**jimmymac** · 08-10-2007, 07:49 PM

Someone confirm to me that the multiplier for this CPU seems to be flexibile between 6 and 9 depending on if its being taxed or not? Just noticing on CPU-Z that it changes...

wafflez · 08-10-2007, 08:08 PM

It's called speedstep, it does this at stock clocks as well when it's idle. If your motherboard has the option you can turn it off (labeled C1E or speedstep), but honestly I think it's a helpful feature because it keeps temps down around 5C during idle and it quickly changes the multiplier back if you're doing anything cpu intensive.

**jimmymac** · 08-10-2007, 08:21 PM

aye i thought as much but just thought i would check and see for sure, ta

**Cromewell** · 08-10-2007, 08:30 PM

You should notice the vcore dropping when the multiplier drops as well, I don't think CPUz will detect that properly though. C1E is different than Speedstep. C1E stops the clock signal for a time, EIST (Speedstep) drops the multiplier and voltage

spanky · 08-10-2007, 11:48 PM

Quote:

Originally Posted by Cromewell

You should notice the vcore dropping when the multiplier drops as well, I don't think CPUz will detect that properly though. C1E is different than Speedstep. C1E stops the clock signal for a time, EIST (Speedstep) drops the multiplier and voltage

CPU-Z does show voltage dropping from load to unload.

**Cromewell** · 08-11-2007, 12:14 AM

Ah ok. For me the voltage it shows has never been right, so I only use CPUz when I'm trying to get someone to tell me what CPU/mobo/RAM they have.

Reneki · 08-11-2007, 01:56 AM

CPU-z never displays proper cpu voltage for me either, just 1.25v constantly, even when i oc. Actually no program i have displays proper voltage, only thing i use is bios, which is that even inaccurate.

spanky · 08-11-2007, 02:18 AM

Weird, I am going to double check this now.

Edit: CPUZ does not show correct voltage for me anymore but previously I was on XP and now using Vista since XP crash. I will try again later on XP.

wafflez · 08-11-2007, 02:54 AM

uhh, Jimmy, I have the same processor and here's some advice...I noticed you made your voltage FAR too high for 2.8ghz...I have mine running very stable (6 hrs with orthos on every core) at 3ghz on 1.293v...If you're finding it unstable to lower your voltage, may I suggest leaving your ram timings at 4-4-4-13 (well, those are mine, I have 800mhz 2gb), leave your ram clock at stock (set fsb to 333 and multiplier to 2.40 for 800mhz in my case), and setting the PCI-express frequency to 100mhz..well uh, if you need reference I'll type out my settings for

3ghz q6600 1.293v

FSB for ram and cpu: 333
multiplier for cpu: 9
multiplier for ram: 2.40
pci express freq: 100mhz
ram timings: 4-4-4-13
ram voltage: 1.8v

I'm suggesting a lower voltage because it drastically lowers your temperatures...I'm on air cooling, just reseated hsf and put a new application of as5 yesterday and my cores are around 55 load, haven't checked idle yet.
EDIT: I just realized how redundant this post is. bleh, just read the list if you want a comparison.

08-10-2007, 07:49 PM	#1 (permalink)
jimmymac Moderator Join Date: Apr 2006 Location: Chester, UK Age: 28 Posts: 3,692	core2quad multiplier Someone confirm to me that the multiplier for this CPU seems to be flexibile between 6 and 9 depending on if its being taxed or not? Just noticing on CPU-Z that it changes... __________________ I tried to put my signature in here but my pen ruined the monitor. http://www.peytonmusic.com/ http://forum.peytonmusic.com/ the most uplifting soulful music you will ever hear...

08-10-2007, 08:08 PM	#2 (permalink)
wafflez Gold Member Join Date: Feb 2007 Location: The Valley, CA Posts: 400	It's called speedstep, it does this at stock clocks as well when it's idle. If your motherboard has the option you can turn it off (labeled C1E or speedstep), but honestly I think it's a helpful feature because it keeps temps down around 5C during idle and it quickly changes the multiplier back if you're doing anything cpu intensive. __________________ My Computer: CPU: Q6600 @ 3.1ghz (344x9)/CPU Cooler: Thermalright Ultra 120 Mobo:Gigabyte P35-DS3R/Ram: 2gb 800mhz G.Skill Video Card: PNY 8800gts 640mb/PSU: Ultra X-Finity 500 Watt Case: Antec P180B/Speakers: Logitech X-530 5.1 Monitor: Viewsonic 20" Widescreen LCD 1000:1/Keyboard and Mouse: Microsoft USB Comfort Curve 2000 w/ Optical Mouse

08-10-2007, 08:21 PM	#3 (permalink)
jimmymac Moderator Join Date: Apr 2006 Location: Chester, UK Age: 28 Posts: 3,692	aye i thought as much but just thought i would check and see for sure, ta __________________ I tried to put my signature in here but my pen ruined the monitor. http://www.peytonmusic.com/ http://forum.peytonmusic.com/ the most uplifting soulful music you will ever hear...

08-10-2007, 08:30 PM	#4 (permalink)
Cromewell Moderator Join Date: Dec 2004 Location: Canada Age: 24 Posts: 10,103	You should notice the vcore dropping when the multiplier drops as well, I don't think CPUz will detect that properly though. C1E is different than Speedstep. C1E stops the clock signal for a time, EIST (Speedstep) drops the multiplier and voltage __________________ You know what the chain of command is? It's the chain I go get and beat you with 'til ya understand who's in ruttin' command here. I must plug a couple comics because they are good :D: www.ctrlaltdel-online.com www.userfriendly.org Last edited by Cromewell; 08-10-2007 at 08:32 PM.

08-11-2007, 12:14 AM	#6 (permalink)
Cromewell Moderator Join Date: Dec 2004 Location: Canada Age: 24 Posts: 10,103	Ah ok. For me the voltage it shows has never been right, so I only use CPUz when I'm trying to get someone to tell me what CPU/mobo/RAM they have. __________________ You know what the chain of command is? It's the chain I go get and beat you with 'til ya understand who's in ruttin' command here. I must plug a couple comics because they are good :D: www.ctrlaltdel-online.com www.userfriendly.org

08-11-2007, 01:56 AM	#7 (permalink)
Reneki Silver Member Join Date: Jul 2007 Location: Ontario Posts: 143	CPU-z never displays proper cpu voltage for me either, just 1.25v constantly, even when i oc. Actually no program i have displays proper voltage, only thing i use is bios, which is that even inaccurate. __________________ Cpu ->Q6600 / Cooling->TLU 120 Extreme MB->GA-P35-DS3R / Ram ->Patriot Extreme 800 4x1gig GPU-> 8800 Gt 512mg / PSU-> OZC GameXStream 700 Watt Case-> P182/ HD->WD SE16 500g LCD Monitor-> Samsung 206BW 20in, 1680x1050, 2ms

08-11-2007, 02:18 AM	#8 (permalink)
spanky Diamond Member Join Date: Dec 2006 Location: KC, MO Posts: 2,419	Weird, I am going to double check this now. Edit: CPUZ does not show correct voltage for me anymore but previously I was on XP and now using Vista since XP crash. I will try again later on XP. __________________ CS:S [.:CF:.] site: http://forums.cfclan.net/ Formerly theresthatguy CPU: Intel Core 2 Extreme X6800 HSF: TK IFX-14 with 120 mm @ 114 CFM GPU: XFX 7950 GX2 RAM: 2GB Corsair XMS2 Pro DDR2 800 MOBO: Intel D975XBX HDD:80GB/750GB Seagates CASE: P180b Last edited by spanky; 08-11-2007 at 02:22 AM.

08-11-2007, 02:54 AM	#9 (permalink)
wafflez Gold Member Join Date: Feb 2007 Location: The Valley, CA Posts: 400	uhh, Jimmy, I have the same processor and here's some advice...I noticed you made your voltage FAR too high for 2.8ghz...I have mine running very stable (6 hrs with orthos on every core) at 3ghz on 1.293v...If you're finding it unstable to lower your voltage, may I suggest leaving your ram timings at 4-4-4-13 (well, those are mine, I have 800mhz 2gb), leave your ram clock at stock (set fsb to 333 and multiplier to 2.40 for 800mhz in my case), and setting the PCI-express frequency to 100mhz..well uh, if you need reference I'll type out my settings for 3ghz q6600 1.293v FSB for ram and cpu: 333 multiplier for cpu: 9 multiplier for ram: 2.40 pci express freq: 100mhz ram timings: 4-4-4-13 ram voltage: 1.8v I'm suggesting a lower voltage because it drastically lowers your temperatures...I'm on air cooling, just reseated hsf and put a new application of as5 yesterday and my cores are around 55 load, haven't checked idle yet. EDIT: I just realized how redundant this post is. bleh, just read the list if you want a comparison. __________________ My Computer: CPU: Q6600 @ 3.1ghz (344x9)/CPU Cooler: Thermalright Ultra 120 Mobo:Gigabyte P35-DS3R/Ram: 2gb 800mhz G.Skill Video Card: PNY 8800gts 640mb/PSU: Ultra X-Finity 500 Watt Case: Antec P180B/Speakers: Logitech X-530 5.1 Monitor: Viewsonic 20" Widescreen LCD 1000:1/Keyboard and Mouse: Microsoft USB Comfort Curve 2000 w/ Optical Mouse Last edited by wafflez; 08-11-2007 at 03:46 AM.

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