Firstly, I just checked my device manager and two processors are currently showing up. Could that still be hyper threading?
Yes, that is hyperthreading. It basically makes the operating system 'think' that there are 2 CPU's. The DC7100 SFF is not compatible with dual core CPU's. Your CPU is most likely a Pentium 530, like the one I used to have. This is a 3.0GHz single core 32bit CPU with hyperthreading technology.
My main question is the difference in power between your upgraded processor and video card?
If I recall, you said the video card takes 31 watts. I'm assuming the new processor you put in takes more than the old one because it is performing at high speeds, and i'm almost positive it still takes the full power even if it is being bottlenecked.
All together, I feel like your upgrades may take the same 50 watts of power my video card would be taking. And that is the maximum power of the card. I don't plan on every running my card to it's highest limits, so I don't see that there should be a problem. If anything, I feel like your system would consistently take more power, although never spike as high as mine could if i were to run it vigorously.
According to the Intel website, the upgraded CPU can use up to 31 watts more than my old CPU, which I think was the same as yours (3.0GHz).
My full list of changes that would affect the power demand are:
1 x 60GB SSD system drive - SSD drives use less power than conventional notebook drives.
1 x 320GB system backup drive - This is a notebook hard drive, so again, less power hungry than a full 3.5in hard drive.
1 x 1TB SATA Seagate Barracuda 7200.12 drive - Being a new drive, this drive actually requires less power than the original 40GB Barracuda 7200.7.
4 x 1GB RAM
1 x 4 port USB 2.0 PCI card.
1 x Asus 210 Silent 1GB PCI Express 2.0 graphics card. See my note below about PCI Express. The power requirement for this upgrade is, in theory, much lower than the power requirement stated on the manufacturer's website.
No floppy drive.
No optical drive.
I don't know how much power all of the above use. The main power hungry upgrade is the CPU. My wife tends to make the CPU peak at 100% for days at a time due to all the video encoding that she does. This doesn't put any load on the graphics card or the hard drives.
Apart from the above, I have several external USB drives connected, but these are all externally powered devices, so I don't imagine that they would draw much (or significant) power from the PC itself.
Talking about bottlenecks, please keep in mind that the DC7100 SFF only supports PCI Express 1.0. The Radeon 6570 is a PCI Express 2.1 card from what I can see. If you put this card in your system, it will only run a PCI Express 1.0 speeds = only half bandwidth.
Edited by DDMLK, 07 October 2012 - 03:09 AM.