|What is the wattage capacity of your power supply ?|
AMD Radeon™ HD 6970 Graphics
■550 Watt or greater power supply with one 150W 8-pin PCI Express® power connector and one 75W 6-pin PCI Express® power connector recommended
■Certified power supplies are recommended. Refer to http://ati.amd.com/certifiedPSU for a list of Certified products
If your power supply capacity is 500 watts or less, there's a strong chance the PS will be overloaded by the 6970's video chipset's current requirements when it's being loaded to the max, it will be damaged eventually, and may even fail completely.
Your power supply must have at least the minimum capacity required to support a system with the graphics card you are using installed, or the max graphics card you might install in the future.
(Onboard video - video built into the mboard - IS NOT A CARD ! )
If that info is not in the ad for the video card, you can go to the video card maker's web site and look up the specs for the model - often under system requirements - the minimum PS wattage, and, more important, the minimum amperage the PS must supply at 12v is stated. If you don't find that, any card with the same video chipset including any letters after the model number has very similar minimum PS requirements. Some power supplies have two or more +12v ratings - in that case, add those ratings to determine the total +12v current capacity.
If you're a gamer...
In most if not all cases, the max capacity rating of the PS is an intermittent rating. It's recommended that you do not load your PS to any more that 80% of that rating if you are going to be using something that puts a constant load on it, such as playing a recent game for hours on end. In that case, you multiply the min capacity stated for the system with the particular video chipset on the card by 1.25 to find the min. capacity of the PS you should have.
If you need to get a PS with more capacity, you can usually replace it with any decent quality standard sized standard ATX PS.
Standard (PS/2) power supply size - 86mm high, 150mm wide, 140mm deep, or 3 3/8" h x 5 7/8" w x 5 1/2" d , or very close to that, though the depth can be more or less for some PSs.
Don't buy an el-cheapo (in quality) PS.
See response 3 in this:
I no longer recommend Cooler Master, AOpen, or Sparkle power supplies.
I'm now downgrading Thermaltake to middle of the road.
Antec has two lines of PSs - the better line has a longer warranty for the same or similar capacity - the other line is more towards middle of the road.
AMD has a list of Certified (tested and found to be good quality) PSs:
Note that if the display on the monitor or TV is LCD, or LED LCD, or Plasma, if you use the default Plug-n-Play monitor drivers for your monitor in Windows, you can choose settings that can DAMAGE the monitor's or TV's display !
If you load the monitor drivers for your specifc monitor or TV that probably came on the CD or DVD that came with the monitor or TV (or they can be downloaded from the manufacturer's web site), Windows will by default then display only the settings that both your monitor or TV model and your video adapter's specific video drivers support.
(Note that el-cheapo monitors, e.g. at least some Acer models, or TVs may not have any specific monitor drivers available - if so, be careful which settings you use with the default Plug-n-Play monitor drivers - consult the specs for the monitor or TV and don't use any setting that's not listed.)
Installing the specific monitor or TV display drivers may NOT set Windows to actually use them.
For info about making sure Windows is using them, see the info in this regarding using Have Disk with a CD or DVD, or pointing to a download you got from the web, to get Windows to actually use the drivers...
For Vista, or Windows 7....
See response 1:
An alternative that may or may not work, for 2000, XP, Vista, or Windows 7.
After the monitor or TV has been connected to the computer, use Windows Update (on the Microsoft web site in 2000 or XP) to search for Custom updates. If there is a Hardware update that lists your monitor or TV model drivers, if you install that, the monitor drivers will be installed AND Windows will be set to actually use them. You may need to Restart Wnidows in order for the changes to completely take effect.