Will my power supply run a GTX770 ?

[yamimaru]

Hello. I'm going to buy the GIGABYTE GTX 770, so i really want to know if i need a new PSU.

The PSU : Aerocool Templarius Imperator 550w +80 bronze http://www.aerocool.com.tw/power-supply/templarius/435.html


My computer :
i7 3770k
ASROCK Z77 EXTREME4-M
8gb RAM (1 stick)
3 Fans
1Tb HDD

 

[toyftw]

Reading this thread has been very educational. I believe SNA3 has given a great recommendation and outstanding technical support to his conclusion. I especially liked the debunking of "recommended specs" and the folly of going completely off them.

However, I wholeheartedly agree with Mouse that the QUALITY of psu manufacturer can be more important than its sticker wattage, and in fact this is the case most of the time. consistent, clean power from a quality psu that will not degrade too far from its purported specs can be better even if at slightly lower wattage. ie. an XFX or Seasonic 550W would unquestionably be suitable for your 770. The question is not so much whether 550w is enough (as has been shown with fancy charts and such) but if Aerocool can deliver.

Hi - actually not a debunking per se, most of us know that Nvidia and AMD overstate the PSU
wattage required for their cards. They do it to allow for PSU's that don't deliver their rated specs,
and older PSU designs that don't allocate enough of their total to the +12v rail(s).

This is why realhardtechx and others that study this very thing are better sources.

Both of those situations are at play here, a tier 4 PSU that:
Tier 4 - Not Recommend for stressful situations. May not be able to put out full rated power above room temperature, and may slightly fail to meet ATX specs.

And only 35a on the +12v rail. Most quality modern 550w PSU's have between
40 & 45 +12vamps.

Right from Toms Hardware - figure the +12v amps needed for the GPU, in
this case 19, add 15a for the rest of the system, and add 5a safety margin.
That's 4a more than the OP has with a PSU that isn't likely to deliver the 35a
in any event.

http://www.tomshardware.com/forum/314712-28-please-read-determine-power-required

And, of course the OP has 'k' processor, so it's highly likely he intends to OC,
which itself will require more +12v amps.

I already showed you the total power needed even with overclocking a 130 watts six cores EXTREME CPU which takes DOUBLE the watt of the Ivy ..

now please admit you made a mistake and stop your empty arguments ...

I will admit no such thing, the OP needs to upgrade his PSU, every knowledgeable
and trusted resource, realhardtechx, msi, Toms Hardware, etc,
says the same thing, you don't run that sys with 35 - +12v amps, especially a tier 4
PSU that isn't likely to deliver it.

The arguments aren't empty, they are all from sources that do the research
and study this for a living.

 

[SNA3]

Reading this thread has been very educational. I believe SNA3 has given a great recommendation and outstanding technical support to his conclusion. I especially liked the debunking of "recommended specs" and the folly of going completely off them.

However, I wholeheartedly agree with Mouse that the QUALITY of psu manufacturer can be more important than its sticker wattage, and in fact this is the case most of the time. consistent, clean power from a quality psu that will not degrade too far from its purported specs can be better even if at slightly lower wattage. ie. an XFX or Seasonic 550W would unquestionably be suitable for your 770. The question is not so much whether 550w is enough (as has been shown with fancy charts and such) but if Aerocool can deliver.

Hi - actually not a debunking per se, most of us know that Nvidia and AMD overstate the PSU
wattage required for their cards. They do it to allow for PSU's that don't deliver their rated specs,
and older PSU designs that don't allocate enough of their total to the +12v rail(s).

This is why realhardtechx and others that study this very thing are better sources.

Both of those situations are at play here, a tier 4 PSU that:
Tier 4 - Not Recommend for stressful situations. May not be able to put out full rated power above room temperature, and may slightly fail to meet ATX specs.

And only 35a on the +12v rail. Most quality modern 550w PSU's have between
40 & 45 +12vamps.

Right from Toms Hardware - figure the +12v amps needed for the GPU, in
this case 19, add 15a for the rest of the system, and add 5a safety margin.
That's 4a more than the OP has with a PSU that isn't likely to deliver the 35a
in any event.

http://www.tomshardware.com/forum/314712-28-please-read-determine-power-required

And, of course the OP has 'k' processor, so it's highly likely he intends to OC,
which itself will require more +12v amps.

I already showed you the total power needed even with overclocking a 130 watts six cores EXTREME CPU which takes DOUBLE the watt of the Ivy ..

now please admit you made a mistake and stop your empty arguments ...

I will admit no such thing, the OP needs to upgrade his PSU, every knowledgeable
and trusted resource, realhardtechx, msi, Toms Hardware, etc,
says the same thing, you don't run that sys with 35 - +12v amps, especially a tier 4
PSU that isn't likely to deliver it.

The arguments aren't empty, they are all from sources that do the research
and study this for a living.

I talk from Experience more than 20 years in the market .. you talk from reading reviews ...

Have a nice day ..

you did not even bother to measure the chipset watt, not anything , you just read 12V rail and recommended and thats it ...

anyways I said to the OP that his power is enough and I stand by what I said.

 

[ko888]

For the GeForce GTX 770 NVIDIA just used the same minimum recommended PSU specs as for the GeForce GTX 780 even though the GeForce GTX 770 draws less power (~ 50 Watts less during GPU stress testing and ~ 42 Watts less during gaming based on reference design and clocked cards).

Even NVIDIA's minimum recommended PSU specs as for the GeForce GTX 780 are overestimated based on looking at the actual measured power consumption of five different brands and models of GeForce GTX 780 cards (i.e. measured on the +3.3V & +12V power lines of the graphics card's PCI-E slot & the PCI-E Supplementary power connectors).

The minimum system power requirement is based on a reference system configured with an Intel 3.2GHz 130 Watt TDP processor.

Since the OP has a K suffixed CPU I can only assume that there is going to be some CPU overclocking happening.

The Gigabyte GTX 780 WindForce OC 3 GB GDDR5 can draw 283 Watts during GPU stress testing. That would be around 23 Amps from the +12V rail(s) for the graphics card only. During gaming it should be around 19 Amps.

If I were spec'ing a PSU for the OP's system I would be recommending a PSU that could at a minimum produce 38 Amps or more on its combined +12V rail(s) to at least be able to handle GPU stress testing. I'm not naive enough, like some graphics card review sites, to assume that users won't ever run a GPU stress testing app. I know I wouldn't want my system to reboot or shut down because of the lack of sufficient +12V rail capacity.

If I were spec'ing it for gaming only (i.e. never running a GPU stress testing app or using it for GPGPU purposes) then 32 Amps or greater on the +12V rail(s) would be the minimum.

 

[mouse24]

Just uh, throwing this out there. If you can afford a 400 dollar GPU, you can afford 50-60 bucks more to not have it blow up. Not saying that PSU can't power it, just saying aerocool is trash.

 

[ko888]

In general most PSU models that use Andyson as its OEM should be avoided.

Raidmax and Ultra are two companies that come to mind because the majority of their PSU models are made by Andyson and those companies do not have a stellar reputation for their PSUs.

 

[Cpt Underpants]

In general most PSU models that use Andyson as its OEM should be avoided.

Raidmax and Ultra are two companies that come to mind because the majority of their PSU models are made by Andyson and those companies do not have a stellar reputation for their PSUs.

Like I said earlier in this post, the majority of the time it is more important the quality of manufacturer and the parts they use than necessarily the wattage alone.

 

[mouse24]

In general most PSU models that use Andyson as its OEM should be avoided.

Raidmax and Ultra are two companies that come to mind because the majority of their PSU models are made by Andyson and those companies do not have a stellar reputation for their PSUs.

Like I said earlier in this post, the majority of the time it is more important the quality of manufacturer and the parts they use than necessarily the wattage alone.

Yeah pretty sure we all said the same thing in 18 different ways.

OP: General consensus is, replace it, aerocool is junk~