Only 3 cores showed up in my Quad Core Q8200 Processor Tags: CPUs Quad Core Processors Last response: November 16, 2010 3:02 PM in CPUs Share PatelTiLAK November 16, 2010 9:01:27 AM When i bought new processor, it was showing all 4 cores of CPU in Q8200. But dont know since when, but now its showing only 3 cores since 1-2 months. Core#0 Core#2 Core#3 Core#1 has disappeared. I checked it by many utilities, bt all showing same including Device Manager. Windows and Linux too. Performance is also affected. My core temperatures remains high like 65-68 at idle time and at peak load, it reaches upto 80 C So that core disappeared due to heating Problem?? IS it possible that CPU/MainBoard itself had disabled/locked it due to overheating ? If yes then how to re-enable it OR it is fried up and i can never get it working again?? Can anybody help me out... Other specs: Intel DG31PR MainBoard 4 GB DDR2 RAM (2+2) Latest BIOS Updated Win 7 x64 Ultimate Thanks More about : cores showed quad core q8200 processor PatelTiLAK November 16, 2010 10:24:25 AM I found the Problem that disabled it. And so the solution also It was due to BIOS settings. In BIOS settings-> SW Single Processor Mode was Enabled. SO cores were disabled and it worked as single CPU Now after i disabled it, it now shows all 4 cores. Windows rating is also 7.1 now Thanks for reply. m 0 l PatelTiLAK November 16, 2010 3:02:36 PM Temprature already remains high. Core temprature reaches 70 C frequently and when i play game, it reaches >80 C At 0% CPU usage, it remains 65-68 C. Now if i overclock it, then core will definitely BURN OUT. m 0 l Can't find your answer ? Ask ! Publish Related resources i am using AMD FX(tm)-4130 Quad-Core Processor but it only shows and uses 3 CPU i went on msconfig but it only shows 3 but i Forum Quad core i5 3470 shows only 2 processor cores in performance information Forum Quad core processor shows only 2 cores in device manager Forum SolvedWhat is the BEST GPU you can pair with an Intel® Core™2 Quad Processor Q8200 (4M Cache, 2.33 GHz, 1333 MHz FSB)? Forum SolvedHave quad core only one processor shows in sys info but four in device mngr.??? Forum CPU only showing 1 core and 2 logical processors, when my CPU Is QUAD core. Forum AMD A4-3420 Accelerated Processor vs. Intel Core 2 Quad Q8200 Forum core 2 quad q8200 best ddr3 motherboard Forum SolvedMy Quad Core AMD FX 4170 shows only 2 cores Forum Solvedi5 quad core showing only 2 cores Forum Why does my config only show 1 processor on a quad core dou system? device manag Forum SolvedWill a intel core 2 quad q8200 2.33 Ghz bottleneck a nvidia gtx 760? Forum Core 2 Quad Q8200, w/EP45-UD3P mb,best settings Forum SolvedHey I have an i5 quad core CPU. Up until recently only one core has been out performing the others. When I look at the activ Forum My quad core only show 3 cpu Forum Core 2 quad is showing 3 logical processor Forum Quad core only showing 2 cores Forum Quad core only shows 2 cores Forum SolvedAMD FX Quad-Core Processor Model FX-4130 3.8GHz Socket AM3+ Forum SolvedWill a quad core Q8200 2.33Ghz bottleneck me with a 7870 (or 660)? Forum More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !