another g80 power question

[v3n0m_dk]

hey all,

i know theres been a load of these already, but is my tagan 580w modular up to taking a gts/gtx or should i upgrade that first, the thing is my parents are watching the power bills and have pretty much said that if i get a bigger psu, ill be paying for it all so

cheers in advance

 

[LoadsaMoney]

Probably be fine for the GTS as both 12v rails are 20a, but the GTX might push it as it needs 30a on the 12v, but may be ok if the PSU combines both rails, but id wait for a definate answer as im not 100%.

 

[The Asgard]

I'm swapping my Seasonic 600W with one tonight because the Seasonic was making funny noises. I will let you know later.

The Tagan supplies more amps than the S12 600 on the 12V lines

 

[w3bbo]

FSP epsilon 700w works fine with my 8800GTX.

 

[fornowagain]

Probably be fine for the GTS as both 12v rails are 20a, but the GTX might push it as it needs 30a on the 12v, but may be ok if the PSU combines both rails, but id wait for a definate answer as im not 100%.

* The GTX does not need 30A on the 12V rail(s). It has a TDP of 185W that's a maximum of 15A, at stock speeds it will not reach peak TDP. They recommend 30A for the total system. If you plan on overclocking the card it would be wise to assume up to 16.5A/200w.

* Stated PSU wattage is meaningless. The only number that matters is the combined maximum 12v wattage, in this case 360W. Each rail in the majority of PSU's are not truly independent. They feed from the same source.

* Potentially there could be issues with maximum current draw on each rail. A single GTX will not reach these limits. If you are feeding other heavy current devices on the same rail you may in some rare cases reach the overcurrent limiter.

* The Tagan has a maximum combined 12v wattage of 420w which is more than enough.

 

[lay-z-boy]

using a tagan 580w on my gtx.

also, bigger psu doesnt mean it draws more power, the potential is there, it only draws more current when more is required

 

[LoadsaMoney]

They recommend 30A for the total system. If you plan on overclocking the card it would be wise to assume up to 16.5A/200w.

I see, thanks.

 

[ernysmuntz]

* The GTX does not need 30A on the 12V rail(s). It has a TDP of 185W that's a maximum of 15A, at stock speeds it will not reach peak TDP. They recommend 30A for the total system. If you plan on overclocking the card it would be wise to assume up to 16.5A/200w.

* Stated PSU wattage is meaningless. The only number that matters is the combined maximum 12v wattage, in this case 360W. Each rail in the majority of PSU's are not truly independent. They feed from the same source.

* Potentially there could be issues with maximum current draw on each rail. A single GTX will not reach these limits. If you are feeding other heavy current devices on the same rail you may in some rare cases reach the overcurrent limiter.

* The Tagan has a maximum combined 12v wattage of 420w which is more than enough.

Cheers didn't know any of that