Rebuilt a PC, where are my 3 other cores? :( Tags: Homebuilt Task Manager Systems Last response: October 1, 2009 12:59 AM in Systems Share Ace_437 September 30, 2009 4:27:49 AM I finally got my PC back up and running after swapping out the m/b. I get Windows installed and everything, then check the task manager and see this. I'm seeing only one core there, and not 4 like I should be. I checked the Bios and the other 3 were enabled. I'm getting sick of this thing. Any ideas? More about : rebuilt cores | E-mail me updates | Report abuse Register or log in to remove Ace_437 September 30, 2009 4:38:30 AM Oh, Quad Core 9550 and an EVGA 790i SLI FTW motherboard in case you were wondering. | Report abuse hunter315 Homebuilt system Master September 30, 2009 4:46:35 AM View>CPU History>One Graph Per CPU it is likely currently set on one graph for all CPU's | Report abuse Ace_437 September 30, 2009 4:52:04 AM Nope. That's the only option. | Report abuse Related ressources Graphics errors on rebuilt system - Forum Rebuilt gaming PC wont start up - Forum [ Rebuilt ] First build. - Forum RAID 5 failed; can it be rebuilt ? - Forum Where on a i7 3770k cores 0- 3 as in what area of the chip? - Forum Ask the community Publish hunter315 Homebuilt system Master September 30, 2009 4:54:27 AM Hmm, interesting, try running DxDiag to make sure that it is listing your CPU as 4 CPUs, if it isnt there is a bad setting somewhere or there is a physical issue. | Report abuse Outlander_04 Homebuilt system Master September 30, 2009 5:54:59 AM this is a new problem .... something I havent seen b4 but a possible fix is to install the mb drivers . Again if you already have and if that doesnt work reinstall windows and then reinstall the mb drivers | Report abuse mindless728 September 30, 2009 1:27:10 PM check msconfig -> boot -> advanced and make sure its not limiting the number of processors | Report abuse Ace_437 September 30, 2009 1:57:47 PM Checked that as well. | Report abuse Reap3r September 30, 2009 2:13:43 PM Activate all 4 cores in the BIOS if thats an option... i know my 750i has that option. | Report abuse Ace_437 October 1, 2009 12:59:09 AM They're all enabled. | Report abuse Register or log in to remove Ask the community Publish Tom's Hardware>Forum>Systems>Rebuilt a PC, where are my 3 other cores? :(> Related ressources: ForumProblem after rebuilt ForumUpgrading Graphics on rebuilt PC ForumRebuilt computer to solve sound problem - still there! ForumRebuilt System problem Forumi even rebuilt .. ForumFried PC , being rebuilt ForumAMD or Intel? & other questions on my build ForumQSC and other pro amp specs ForumProblem with Rebuilt PC ForumI 3 -3220 + GTX 660 2GB VS i5-3470 + HD 7850 1GB ForumI 3 -2100 or I5-3570K ForumPC Reboots During 3 D Games!!! ForumNew build im working on ForumWhere to sell a custom PC?? Please help ForumDO you think I have a short some where? More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !