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power supply amps
- Thread starter genetech
- Start date
Dangman
Ninja Editor SuperMod
- Joined
- Dec 15, 2005
- Messages
- 46,056
This is gonna be long so sit down:
The GTX 280 requires a PSU with at least 40A on the +12V rail. The 40A isn't just for the video card itself but for the system plus the card. That combined raiting of 40A requirement is from the total amount of amps the PSU has available. Not the combined total of it's +12V rails nor a full 40A on one rail.
You determine the amperage on the +12V rails by first finding out what's the total combined, max load, combined or max wattage aside for the +12V rails/section alone. Then divide that total by 12 and you get how much amps the PSU has on the +12V rail.
That's the correct way to find out how much amps a power supply has. Don't add up the amps on the +12V rail to figure out the amperage. Doesn't work that way. If the total combined or max wattage can't be found on the power suppply, check the manufacturer's page for that PSU for that info. If the manufacturer doesn't provide that information, it's generally a good sign for you to drop that power supply from consideration.
The GTX 280 requires a PSU with at least 40A on the +12V rail. The 40A isn't just for the video card itself but for the system plus the card. That combined raiting of 40A requirement is from the total amount of amps the PSU has available. Not the combined total of it's +12V rails nor a full 40A on one rail.
You determine the amperage on the +12V rails by first finding out what's the total combined, max load, combined or max wattage aside for the +12V rails/section alone. Then divide that total by 12 and you get how much amps the PSU has on the +12V rail.
That's the correct way to find out how much amps a power supply has. Don't add up the amps on the +12V rail to figure out the amperage. Doesn't work that way. If the total combined or max wattage can't be found on the power suppply, check the manufacturer's page for that PSU for that info. If the manufacturer doesn't provide that information, it's generally a good sign for you to drop that power supply from consideration.