[Solved] Dual Quad Core dillemma

Hello, I just bought a computer and I bought one with dual quad core processor. Which to me means two separate processor with 4 cores? But when I opened the hardware it only looked like one was there.

The name of it is intel xeon processor e5640 (12m cache, 2.66 GHZ, 5.86 Gt/s Intel QPI)

When I open the computer and go to processors in device manager it shows me I only have 4 processors which mean where are my other 4?

Can someone tell me what a Dual qUAD CORE Processor means and is it suppose to be two separate pieces or is in one processor. should my computer show 8 processors?

Could you provide the model of the system you bought?
Your processor does support being in a dual processor system and does support hyper threading. If you have two of these processors you should effectively have a 16 processor system. If you only have 4 processors showing, you definitly have only one of these chips in your PC.

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Dual Quad core processor: A single quad core CPU that support 16GB or 24GB plus another quad core CPU that support 16GB or 24GB, so, you have TWO CPUs, 8 cores, 4 cores per CPU.

So, What is the model of the rig? Because if you only see a socket and a single CPU, the person that sold you the rig, sold you something that's not what you have in paper.

Thanks for answering its a Precision Workstation T7500, and when I ordered it the specifications said DUAL QUAD CORE PROCESSORS. But when I looked in system devices under processors it said the following

E5640 2.66 GHZ
E5640 2.66 GHZ
E5640 2.66 GHZ
E5640 2.66 GHZ


Thats it only four listed, it should read more like you said 16 correct? I am confused because I thought dual quad core meant two with 4 cores which would be 8/

Please explain how many processors should show up in my WINDOWS?

Thanks in advance

1- You can't see the "virtual cores", even, aren't called virtual cores, those are four cores with eight threads and you can't see the threads.
2- That rgi support dual core, quad core and six core CPUs, the CPU that you are seeing in the devices manager is a SINGLE cpu with four cores.
3- You only can see the the cores, so, if you have a single CPU with four cores, you should see four cores in task manager and device manager, if you have two CPU with four cores per CPU you should see eight core in task manager and device manager. The only way for see 16 cores is have four CPU with four cores per CPU or two eight core CPUs.

Here is an example:

It're two X5460, with four cores per CPU:

Uploaded with ImageShack.us

Now check the following picture:

CPU-Z says "Cores:4 Threads:4", if you check with CPU-Z, the info for your CPU should be "Cores:4 Threads: 8", as I say, you can see the cores, not the threads. Check the link below to see an example.

http://valid.canardpc.com/show_oc.php?id=1326854

Finally, check if you REALLY bough the rig with TWO PHYSICAL cpus, DELL sometimes sell the rigs with a single CPU and option to add another one if you want.

I purchased the computer with Dual quad core processors its on my order now my windows task manager looks like the one you sent me with only 4 green blocks I should have eight if I received dual quad cores

Somehow you have hyperthreading disabled in the bios. In task manager you definitely should see 8 cpu's when hyperthreading is enabled. 16 if you have two of these processors.

Thank you for your answers, I will check what I have installed. I do only see 4 not 8 charts as Moody mentioned, I have the order receipt they did not send me the other processor they only sent me one, I am concerned as to why they did that and thankful that we looked.

All your answers have helped me understand better, I am pursuing this with Dell and getting a lot of stalling its been going on for a week, and the customer service stinks, but the matter will be resolved, I actually will be calling again today to check on the status of where my other processor is and when they are getting it to me.

Thank god I have all my documentation or I wouldn't be getting anything.

I will keep posted

Update not sure if anyone here works for Dell but I am in Dell hell trying to solve my missing processor dilemma,and have not received the processor as of this date. However I will be fighting them for it.

Thanks for all your great information!