Quad core processor but only One core working

chokfull · 10-09-2009, 08:51 PM

I just installed the Vista SP2 for Windows Vista Ultimate and i think it turned off three of my four processors (at least i think this was the catalyst)

There are no system restore points before the install to go back to. I cant seem to get the full processor working

PLEASE HELP!

Phædrus2401 · 10-09-2009, 08:56 PM

Why do you think the other CPU cores are not working? What are you using to determine this?

chokfull · 10-10-2009, 05:35 AM

1. I have a hardware monitor running that is checking all processor speeds and tracking it. This monitor only shows one core working at all.

2. System information lists my processor but has one core in ( ) This is the direct copy of that.
"Processor Intel(R) Core(TM)2 Quad CPU Q6700 @ 2.66GHz, 2660 Mhz, 1 Core(s), 1 Logical Processor(s)"

3. I had a similar problem once at the very beginning of my ownership of this PC in which only one core was responsive, the computer behaved in the same manner. I also run alot of processor intensive programs and they have experienced a significant decrease in performance.

**linderman** · 10-10-2009, 10:43 AM

YouTube - Enable All Your CPU's Cores When Vista Boots Up

chokfull · 10-10-2009, 02:16 PM

Thanks for the link but i can only select one processor as the other three are not recognized. So my computer thinks its a single core and therefore does not have the option of choosing 4 cores.

**linderman** · 10-10-2009, 02:21 PM

did all four cores work before you installed sp-1

"if" the answer is YES then I would run a windows Vista Repair

http://www.vistax64.com/tutorials/88...all-vista.html

chokfull · 10-13-2009, 01:59 AM

well i uninstalled SP2 and it still doesnt work, i also checked all drivers and software to make sure its up to date. Still nothing

Any advice?

**greenbrucelee** · 10-13-2009, 03:41 AM

do a repair install

**linderman** · 10-13-2009, 02:06 PM

http://www.pcstats.com/articleview.cfm?articleID=2264

10-09-2009, 08:51 PM	#1 (permalink)
chokfull Registered User Join Date: Oct 2009 Posts: 4 OS: vista SP2	Quad core processor but only One core working I just installed the Vista SP2 for Windows Vista Ultimate and i think it turned off three of my four processors (at least i think this was the catalyst) There are no system restore points before the install to go back to. I cant seem to get the full processor working PLEASE HELP!

10-09-2009, 08:56 PM	#2 (permalink)
Phædrus2401 Hardware Tech Team Join Date: Mar 2009 Location: New Orleans Posts: 3,810 OS: Vista Ultimate x64 SP1 + Ubuntu 9.04 My System	Re: Quad core processor but only One core working Why do you think the other CPU cores are not working? What are you using to determine this? __________________ Good PSU brands: Corsair, SeaSonic, CWT, PC Power and Cooling, Thermaltake Toughpower, CoolerMaster Real Power Pro On 80+ Certification - PSU Information and Selection - Power Supply Myths You don't get what you don't pay for.

10-10-2009, 05:35 AM	#3 (permalink)
chokfull Registered User Join Date: Oct 2009 Posts: 4 OS: vista SP2	Re: Quad core processor but only One core working 1. I have a hardware monitor running that is checking all processor speeds and tracking it. This monitor only shows one core working at all. 2. System information lists my processor but has one core in ( ) This is the direct copy of that. "Processor Intel(R) Core(TM)2 Quad CPU Q6700 @ 2.66GHz, 2660 Mhz, 1 Core(s), 1 Logical Processor(s)" 3. I had a similar problem once at the very beginning of my ownership of this PC in which only one core was responsive, the computer behaved in the same manner. I also run alot of processor intensive programs and they have experienced a significant decrease in performance.

10-10-2009, 10:43 AM	#4 (permalink)
linderman Moderator, Hardware Team Join Date: May 2005 Posts: 20,437 OS: win 2000 pro / Win XP pro My System	Re: Quad core processor but only One core working YouTube - Enable All Your CPU's Cores When Vista Boots Up __________________ I still know nothing and I respect that fact, striving to improve and, along the way, help anyone that comes from the place that I used to be! Power Supply Selection LEARN TO BACK-UP YOUR DATA FREE & EASY YouTube - Runtime Software DriveImage XML tutorial

10-10-2009, 02:16 PM	#5 (permalink)
chokfull Registered User Join Date: Oct 2009 Posts: 4 OS: vista SP2	Re: Quad core processor but only One core working Thanks for the link but i can only select one processor as the other three are not recognized. So my computer thinks its a single core and therefore does not have the option of choosing 4 cores.

10-10-2009, 02:21 PM	#6 (permalink)
linderman Moderator, Hardware Team Join Date: May 2005 Posts: 20,437 OS: win 2000 pro / Win XP pro My System	Re: Quad core processor but only One core working did all four cores work before you installed sp-1 "if" the answer is YES then I would run a windows Vista Repair http://www.vistax64.com/tutorials/88...all-vista.html __________________ I still know nothing and I respect that fact, striving to improve and, along the way, help anyone that comes from the place that I used to be! Power Supply Selection LEARN TO BACK-UP YOUR DATA FREE & EASY YouTube - Runtime Software DriveImage XML tutorial Last edited by linderman; 10-10-2009 at 02:30 PM.

10-13-2009, 01:59 AM	#7 (permalink)
chokfull Registered User Join Date: Oct 2009 Posts: 4 OS: vista SP2	Re: Quad core processor but only One core working well i uninstalled SP2 and it still doesnt work, i also checked all drivers and software to make sure its up to date. Still nothing Any advice?

10-13-2009, 03:41 AM	#8 (permalink)
greenbrucelee Mentor Hardware team Join Date: Apr 2007 Posts: 1,849 OS: XP SP3 My System	Re: Quad core processor but only One core working do a repair install __________________ Microsoft certified professional, Network +, A+ certified

10-13-2009, 02:06 PM	#9 (permalink)
linderman Moderator, Hardware Team Join Date: May 2005 Posts: 20,437 OS: win 2000 pro / Win XP pro My System	Re: Quad core processor but only One core working http://www.pcstats.com/articleview.cfm?articleID=2264 __________________ I still know nothing and I respect that fact, striving to improve and, along the way, help anyone that comes from the place that I used to be! Power Supply Selection LEARN TO BACK-UP YOUR DATA FREE & EASY YouTube - Runtime Software DriveImage XML tutorial