Core 2 duo desktop, but taskman and perfmon only report one cpu

Core 2 duo desktop, but taskman and perfmon only report one cpu I have a core 2 duo desktop, but in taskman i can only see one panel in the performance tab, where i'm certain there should be two. Also, in perfmon, under Processor -> % Processor Time, there is only "_Total" and "0" instance.
Asked by: Guest \| Views: 202

Total answers/comments: 2

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Guest [Entry]

"Could you check which version of the Windows XP hardware abstraction layer your system is using? To do this, run devmgmt.msc, look at what item is displayed as the child of ""Computer"" in the tree, and add this info to your question: ""ACPI Multiprocessor PC"", ""ACPI Uniprocessor PC"", ""Advanced Configuration and Power Interface (ACPI) PC"", ""Standard PC"", etc.

If you're not using the ""ACPI Multiprocessor PC"" HAL, then it sounds like either Sysprep (oops, this won't work) or an in-place upgrade is in order. Here's a knowledgebase explaining How to perform an in-place upgrade (reinstallation) of Windows XP."

Guest [Entry]

"I haven't a Windows computer to check right now but I remembre that, at least on Windows 2003, there is a préférence somewhère in thé task manager to show graph as if there were only one cpu.

You may also want to look at the bios settings to be sure that thé cpu is correctly recognized and that both Core are enabled.

Also check properties from ""My Computer"" on the Windows desktop"