Another Beat to death thread, I need to understand it :)

[ghosstman]

I need to know if my PowerSupply will work for my EVGA 770 FTW card.

I am so confused as to what i need to do ...

i currently have a Rosewill Xtreme Series RX950-S-B 950W Continuous @40°C On Newegg it can be found by searching for Item# N82E16817182096 (this is one solid power supply for me)

this is the listed power distribution for the power supply:

+3.3V@24A, +5V@30A, +12V1@20A, +12V2@20A, +12V3@20A, +12V4@20A, -12V@0.5A, +5VSB@3A

it has "4 Rails" that service at 20A for each rail. I have always and forever been under the impression that my power supply has 80A across all the rails and that it distributed equally across each rail until it hit the magical 20A on a rail number before it would shut down.



Now according to EVGA i need this

Minimum of a 600 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 42 Amps.)
An available 6-pin PCI-E power connector and an available 8 pin PCI-E power connector
Total Power Draw : 250 Watts

I'm pretty sure my Power supply will rock this mama card but of course all the reading and second guessing myself i have placed myself into absolute confusion land.

I am currently running a I7-920 and a GTX 560TI i have ZERO desire to overclock.

(At one point I had a GXT480 on this but my card went Kaput about 2 weeks after the warranty expired so ill never buy a ZOTAC never again and no more)

i am going to run a I7-4770K along with this FTW 770 with no ambitions to overclock..... Yet ... i may get adventurous.



ANY help here would be greatly appreciated.

 

[Deders]

You should have no problems with that PSU and a 770. You would still have plenty of headroom if you went SLI.

The load will be split so that up to 75W (6.25A) is transferred via the PCIe slot itself (usually the first rail, or whichever rail powers the motherboard) , and then up to 150W with the 8 pin and up to 75W again with the 6 pin, (total potentially via the PCIe cables, 18.75A, Usually powered by rail 3 or 4).

The 300W total just gives you extra headroom in case you do want to overclock. Like EVGA says, it's unlikely it will draw more than 250W total even under extreme loads.

 

[lehtv]

i currently have a Rosewill Xtreme Series RX950-S-B 950W Continuous @40°C On Newegg it can be found by searching for Item# N82E16817182096 (this is one solid power supply for me)

The combined +12V capacity is 810W (67.5A), as it says on the newegg page.

Now according to EVGA i need this

Minimum of a 600 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 42 Amps.)

Since your unit's +12V output is rated for 25.5A (or 306W) higher than the minimum recommended by EVGA, it'll be more than powerful enough. Theoretically you should be able to run two GTX 770's off of that unit.

 

[ghosstman]

YOU GUYS ARE FREAKING AWESOME, thanks for the replies.

I guess if I had read even further down I would have seen and confirmed my suspicions... thanks for the education

 

[Tweakin]

...i am going to run a I7-4770K along with this FTW 770 with no ambitions to overclock..... Yet ... i may get adventurous...

Just look at my sig...I'm running more load on a 5yr old 750.

 

[ghosstman]

I have never overclocked, I always get over-clocakble stuff but i just don't do it.

I guess I'm afraid that I will Fry something and then ill be out my fried component.

Maybe I'm also thinking way back when you had to do it with jumpers and Switches, not that I'm dating myself but I do go way back to when 512k of memory was just Kick Ass.

I have a Friend of mine that Overclocks right out of the box, before he loads his OS... he is my hero...