[Gravanti]

My computer is running with only one core. I went through the task manager but the only option that it gives me is one core, instead of 1,2,3,4. I also tweaked it with regedit. Setting all to zero.
I even changed the CPU but same problem. It must be o problem with windows 7 settings.
Any suggestion please. Thanks.

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Can you post a screen shot of Task Manager, Performance tab?

 

I have a Intel Quad Core i7-4770 @ 3.4Ghz and mine looks like this:

 

 

Did you install Windows 7 or did it come with the computer?

 

What does Piriform Speccy show for CPU?

 

Mine is:

 

[Ztruker]

Can you post a screen shot of Task Manager, Performance tab?

 

I have a Intel Quad Core i7-4770 @ 3.4Ghz and mine looks like this:

 

 

Did you install Windows 7 or did it come with the computer?

 

What does Piriform Speccy show for CPU?

 

Mine is:

 

[Gravanti]

My task manager shows only one core (one rectangle). Piriform Speccy gives all valid readings of the Cpu but reports only one core.
When I go to Windows device manager, though, it reports all four cores with updated drivers. I just don't understand it. I can't give you a screen shot of my task manager because I am out of town and am using my IPad. On top of everything my Cpu runs constantly at 100% and of course is very slow. Thanks for the help, appreciate it.

[iammykyl]

Gday.

Could you give us more infor about your computer please.

If a Dell or HP type, the brand and model number, if a custom build, the MB, RAM, GPU and brand/model of the PSU.

Have you used any software to overclock the CPU?

[Gravanti]

The computer is HP Pavillon Media Center m8120n. Is not custom build, but I recently installed a new MSI R7770 graphic card.
The motherboard is a Asustek, Basswood 3 G (socket 775), vendor is Intel, Southbridge model is 82801HH (1chbdh)'
Bios brand is Phoenix Technologies, version 5.09. The PSU I just install is an ANTEC VP450 - 450 watt (ATX 12v v2.3.
I have 6GB RAM (2x1 gb and 2x2 gb). I did not use any software to overclock the CPU.

The problem had started before I installed the graphic card and PSU.

Thanks for your time and interest on this.

[Gravanti]

Oops.
I forgot to tell you that when the problem started I was using a Core Duo quad q6600. I thought the CPU was bad and replaced it with a q6700, but that did not fix the problem.

[Ztruker]

Have you installed the Chipset driver for the new CPU?

[Gravanti]

No, I did not. How or where can I get it? (Or I can put back the old CPU q6600).
I checked on device manager and it shows the right CPU (q6700) with 4 cores working. I tried to update the driver and it tells me that I have the latest driver installed.

[Gravanti]

I runned the Intel Processor identification utility and it recognized the right cpu with four cores running at 2.66 ghz each and
1066 MHz each. Cache memory 8 MB.

I start thinking on installing windows 7 64 bit on a brand new hard drive and start from the beginning, but hopefully you will have an answer for me. Tks

[Gravanti]

You are not going to believe this
I had some conflicts with my printer (HP d110). I uninstalled the software that came with it and like magic now I have the four cores working as they are supposed to. Go figure......
I thank you very much for your interest
Refards

[Ztruker]

That is just plain weird! Glad your set though.