Dual core only running on 1core.

tacohead · 03-10-2008, 01:28 AM

I just got a AMD Dual Core Athlon 64 x2 3800+ off one my m8's who has had it for over 2years. It appears to only be running off a single core, when I go into task manager it only has 1graph. I did a cpu-z test and it comes up with the 1core running at normal speed (2000mhz) but theres no hint of the second core running at all. I'm using Windows XP pro 64bit and Gigabyte GA-K8N Ultra-SLI Motherboard. I can post the cpuz results if that'll help. Any help on the problem is greatly appreciated.

1 g0t 0wn3d · 03-10-2008, 05:09 AM

did you install the amd dual core optimizer? http://www.amd.com/us-en/Processors/...1_9706,00.html

tacohead · 03-10-2008, 08:46 PM

Quote:

Originally Posted by 1 g0t 0wn3d

did you install the amd dual core optimizer? http://www.amd.com/us-en/Processors/...1_9706,00.html

Sure did with no change. I notice under device manager it's showing up as "ACPI Uniprocessor x64-bases PC" where as it should be multiprocessor? Updating the driver just gets a no better update message. I reloaded windows and hit f5 when the "do you want to install raid/sc hit f6i" message pops up and selected the ACPI Multiprocessor x64-bases PC option but its still set as uni processor when installed.

**FreoHeaveho** · 03-14-2008, 07:09 AM

http://techrepublic.com.com/5208-623...&tag=rbxccnbd1

03-10-2008, 01:28 AM	#1 (permalink)
tacohead Registered User Join Date: Mar 2008 Posts: 2 OS: Win xp pro 64 bit	Dual core only running on 1core. I just got a AMD Dual Core Athlon 64 x2 3800+ off one my m8's who has had it for over 2years. It appears to only be running off a single core, when I go into task manager it only has 1graph. I did a cpu-z test and it comes up with the 1core running at normal speed (2000mhz) but theres no hint of the second core running at all. I'm using Windows XP pro 64bit and Gigabyte GA-K8N Ultra-SLI Motherboard. I can post the cpuz results if that'll help. Any help on the problem is greatly appreciated.

03-10-2008, 05:09 AM	#2 (permalink)
1 g0t 0wn3d Registered User Join Date: Jan 2007 Location: Sedona, az Posts: 6,430 OS: Vista basic 32bit My System	Re: Dual core only running on 1core. did you install the amd dual core optimizer? http://www.amd.com/us-en/Processors/...1_9706,00.html __________________ Bench Test \| PC Wizard \| System specs \| PSU info \| PSU calculator \| Memtest86+ \| Speedfan[/center]

03-14-2008, 07:09 AM	#4 (permalink)
FreoHeaveho TSF Enthusiast Join Date: Aug 2006 Location: Australia Posts: 3,187 OS: Windows Vista Ultimate 64 SP2, Windows XP Professional SP3, Mac OSX Leopard My System	Re: Dual core only running on 1core. http://techrepublic.com.com/5208-623...&tag=rbxccnbd1 __________________ PC Wizard-VGA 2008 Charts-Power Supply Info-Multi/Single Rail PSU?-Speedfan-Driver Sweeper [