Hp Dc7100 Sff Power Supply Question?
I have a HP DC7100 sff and have added a GeForce 8400 515mgb video card, 2Gb ram, sound card and a dvd burner w/lightscribe. My question is should i replace the 24watt power supply with a higher power unit?
I have a HP DC7100 sff and have added a GeForce 8400 515mgb video card, 2Gb ram, sound card and a dvd burner w/lightscribe. My question is should i replace the 24watt power supply with a higher power unit?
How much power is necessary for PC systems ?
For your reference, following are details that illustrates approximately how much wattage you will need to run various common components in a PC system ( the components are on the left and the wattage required on the right):
The Motherboard: 15-30
Midrange to high-end CPU: 40-100
RAM: about 7 per 128MB
PCI add-in card: 5
High-End graphics board: 60-100
IDE/SATA hard drive: 10-30
Optical CD/DVD drive: 10-25
So let’s calculate a system with a powerful motherboard, a (High-end) CPU, 4 Gigs of RAM, 3 PCI cards (including the 2 (high-end) graphic cards), 2 hard drives and 2 optical drives.
That would be 30+100+224(128MB X 8 X 4 = 4Gigs @ 7 per 128MB)+15(3 X 5)+200(2 X 100)+60(2 X 30)+50(2 X 25) = 679
So compare your notebook specs with the list and do your own math, you will then know what PSU you should get.
NOTE: Leave yourself a bit of slack in your calculation for future hardware – Example: As calculated above, I would deliberate a PSU of at least 800 Watts and get up to 850 Watts if the price difference is slight.
Hope this helps you
Well, this graphics card I believe has a max wattage at 75, HDD, M/B, Processor, and DVD-ROMS usually add up to about 100-150. I assume you meant 240 not 24 watts. So, you should be OK, although cutting it pretty close. The downside is, usually with SFF computers, they have Power Supply that are not standard, so it might not even be possible to get a higher wattage one.