Cores issue

[jemtray]

Hi All, I Built my own P.C about 10 months ago now:
CPU, AMD X4 Phenom II 965,
MOBO, ASUS M4A88T-V EVO,
MEMORY, 8GB Corsair DDR3 PC 1333MHZ,
GPU, Saphire HD 5550 1 GB DDR2.
OS, Win 7;

As I say I built about 10 months ago and have replaced only the stock fan for a Corsair H60 about 3 monnths ago and have had no problems until today, on switching on my P.C I noticed on boot up screen it said 3 cores activated?? so I tried to re-install the Bios drivers from the cd that came with the MOBO still no change, then I used the latest MOBO drivers from ASUS, then I took out the CPU to check for damage to the pins they were O.K so then I uninstalled any recent programmes I had loaded so you can see I am really running out of idea's here, Any help would be appreciated as I'm stuck for idea's, thanks in advance.....

 

[Guest]

Go into the bios and set to optimized defaults and restart

 

[Chipbuster]

Yeah, try the simple things first. Try what Pazero01 said, try checking to see if Windows can see four cores and the BIOS is just giving a bad message, little things like that. Uninstalling programs off of the OS is highly unlikely to change anything in the BIOS.

 

[jemtray]

Ok Guy's, I went back inbetween your replies and checked what previous psotings of a similar problem had suggested apparently the CMOS needed to be re-set. Which meant switching off the P.C from the rear (after shutting down of course) taking the CMOS battery out and switching it back on briefly then after a minute or two putting it back in and re-boot, works fine now just had to reset the clock in the Bios and everything is set to default, Perfect, thanks for your input

 

[Guest]

Which is what i said, but without the need to open or remove any physical things though