I have a friend who is having issues with windows vista 64 home edition not recognizing all four cores of processor. Here is what we have done so far:
updated bios
tried to change cores in system config but only giving two core option and we have four.
rma first processor since 3 separate programs(windows,amd overdrive and cpuz) all showed only two cores
checked all appropriate options in gigabyte bios.
All components are compatible. Any help would be appreciated.
ultra 550 watt psu
radeon 4830 gpu
amd athlon II 620
gigabyte am2/am3 motherboard
ocz reaper 1066 memory
vista 64 home premium
1tb wd hard drive
24x dvd rom
Vista will not recognize all cores
- 07 Mar 2010 #1My System Specs
Vista will not recognize all cores
- 07 Mar 2010 #2
The Contemplator
Join Date : Mar 2008 Doncaster, UK Posts : 2,754 Windows Vista Ultimate x64 Service Pack 2 Local Time: 12:29 PM
My System SpecsRe: Vista will not recognize all cores
Hi KRAZYTRUCKER and welcome to Vista Forums
How many cores are being detected in the BIOS? What is the full model number of the motherboard (this should be silk-screened on the board itself)?
- 07 Mar 2010 #3My System Specs
Re: Vista will not recognize all cores
Ok. The full board model is GIGABYTE-GA-MA-786G-UD3H. Vista,amd overdrive and cpuz are only detecting 2 cores. Thanks for reply
- 07 Mar 2010 #4
The Contemplator
Join Date : Mar 2008 Doncaster, UK Posts : 2,754 Windows Vista Ultimate x64 Service Pack 2 Local Time: 12:29 PM
My System SpecsRe: Vista will not recognize all cores
What does Windows Task Manager show? This is mine (I have a dual-core CPU). Make sure that you have the option One Graph Per CPU enabled in the CPU History section of the View menu.
Also, what is CPU-Z identifying as your CPU?
- 07 Mar 2010 #5My System Specs
Re: Vista will not recognize all cores
only showing 2 cores 2 threads in cpuz. amd overdrive only showing two cores in status moniter. everything correctly identifys the cpu as an amd athlon 2 620. when you enter system configuration it only give you and option for 2 cores not 4. this is the second cpu we have tried so the odds of two in a row bad pretty high. thanks for reply
- 07 Mar 2010 #6My System Specs
Re: Vista will not recognize all cores
will check in task manager
- 07 Mar 2010 #7
Administrator
Join Date : Apr 2007 Texas, USA Posts : 30,532 64-bit Vista Ultimate SP2, Windows 7 Ultimate SP1, Windows 8 Enterprise Local Time: 06:29 AM
My System SpecsRe: Vista will not recognize all cores
Hello KrazyTrucker, and welcome to Vista Forums.
In addition, you might see if resetting the BIOS/CMOS to factory default settings may help. If not, then also check to make sure that you have the latest BIOS version flashed and chipset drivers installed for your friends motherboard. Sometimes a older version of these may not detect a newer CPU properly.
Hope this helps,
Shawn
- 07 Mar 2010 #8My System Specs
Re: Vista will not recognize all cores
task manager shows two graphs just like the one you displayed
- 07 Mar 2010 #9My System Specs
Re: Vista will not recognize all cores
thanks Brink but as in original post I stated We had done all these things. Thanks for the help. It is a bit frusting
- 07 Mar 2010 #10
The Contemplator
Join Date : Mar 2008 Doncaster, UK Posts : 2,754 Windows Vista Ultimate x64 Service Pack 2 Local Time: 12:29 PM
My System SpecsRe: Vista will not recognize all cores
What is your BIOS revision version? This is displayed briefly when you power your system on. According to the CPU Support list for your motherboard, this needs to be F4 (or newer) for your CPU.
Incidentally, have you got your motherboard model correct? I think it should be GA-MA780G-UD3H.
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Vista will not recognize all cores problems?
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