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Phenom II X4 955 only shows 3 cores?

post #1 of 6
Thread Starter 
Hey guys, for some reason tonight my Phenom II x4 955 is only showing 3 cores in CPU-Z. 3 core, 3 threads.

I've had this CPU for a while and it showed up all for for some time. What would cause it to do so, and is there anything I can do to fix it?
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post #2 of 6
click start and type in msconfig, click boot, go to advanced options, and under cores make sure "4" is selected.

Also make sure in the BIOS no cores are disabled
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post #3 of 6
It may be disabled in BIOS
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A-Data 256G EK Supreme HF, Water Chiller Windows 8 x64 Seasonic Gold X850 
Case
LianLi PC-A77 
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FX-8320 Gigabyte 990FXA-UD7 Sapphire HD6970 1600 11-11-11-28 
Hard DriveCoolingPowerCase
OCZ Vertex3 120Gb Heatkiller 3.0, GTX140 + GTX120 Seasonic Gold X650 Lian Li PC-7FN 
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post #4 of 6
If you don't have any special BIOS overclocking or voltage things, go ahead and reset the CMOS battery and see if it does anything.
    
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post #5 of 6
Reset your BIOS, I had this issue a few days ago.
 
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Silicon Lottery i7 4790k 4.8 GHz Asus Maxiumus VII Hero Asus GTX 970 4GB Strix 16 GBKingston Hyper X 1600 MHz 
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Corsair Neutron XT 480 GB [1] WD Red 4TB [Data] [1] Seagate Firecuda 2TB [Games] Noctua NH-D15S 
OSMonitorKeyboardPower
Windows 10 pro Asus VG248QE 120 Hz Lightboost Enabled Logitech G810 Corsair AX760 
CaseMouseAudioAudio
Fractal Design Define R4 Logitech G Pro AudioEngine D1 DAC ATM-M50 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 965 Asus 990FX Sabertooth PNY GTX 570 1280 MB 6 GB Corsair DDR3 1333 
Hard DriveOptical DriveCoolingOS
Seagate 500 GB LG DVD R/W Coolermaster Hyper 212 Evo Windows 7 Pro 
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post #6 of 6
Thread Starter 
Resetting the battery did it. I tried that as soon as I posted this. I'm not entirely sure what caused it, but at least it's good now. +rep to all. Thanks guys!
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CPUMotherboardGraphicsRAM
AMD Phenom X4 955 ASUS M4A79 Deluxe Sapphire 6870 1gig 4gigs Gskill PC2 8500 
Hard DriveOptical DriveOSMonitor
300g/300g/300g/1.5tb (none right now) Windows 7 Ultimate 64bit Sceptre 21.5in 1920x1080 
PowerCase
Rosewill 1000 watt (80 plus) Xclio A380BK 
  hide details  
Reply
Almost there
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom X4 955 ASUS M4A79 Deluxe Sapphire 6870 1gig 4gigs Gskill PC2 8500 
Hard DriveOptical DriveOSMonitor
300g/300g/300g/1.5tb (none right now) Windows 7 Ultimate 64bit Sceptre 21.5in 1920x1080 
PowerCase
Rosewill 1000 watt (80 plus) Xclio A380BK 
  hide details  
Reply
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