OC potential, OC FIRST

[Jazam]

Hello everyone, I wanted to start of with two main questions,

1. Is my rig a good candidate for cpu, gpu, over clocking?

2. I've heard overclocking shortens life spans, but how drastic is it? And if it depends, at what point does it depend is there a safe balance in oc and does it void warranties?


CASE: Thermaltake Chaser MK-I

CD: LG 12X Internal Blu-ray Drive & DVDRW, 3D Playback Combo Drive

CPU: Intel® Core™ i7-4820K Quad-Core 3.70 GHz 10MB Intel Smart Cache LGA2011

FAN: Corsair Hydro Series H60 High Performance Liquid Cooling System 120MM Radiator & Fan

HDD: 128GB SanDisk SATA III 6.0Gb/s SSD - 490 MB/s Read & 350 MB/s Write

HDD: 2TB hdd

MEMORY: 16GB (4GBx4) DDR3/1866MHz Quad Channel Memory Corsair Vengeance

MOTHERBOARD: GIGABYTE X79-UP4

POWERSUPPLY: 850 Watts - LEPA G850-MAS 80 Plus Gold Certified

GRAPHICS1: MSI Edition NVIDIA GeForce GTX 780 3GB

GRAPHICS2: EVGA Edition NVIDIA GeForce GTX 780 3GB

Mostly looking to increase graphic card performance

 

[laviniuc]

the psu is the problem, when you overclock the graphics it will come close to the limit of the psu... it's running close even on normal use, those 780 's each need about 250-300 on full load. with overclock you add another 50W each.

the cpu will have the biggest headroom since you're using the liquid cooler for it.

 

[Jazam]

Alright so I'll try to sell my psu and get a new one... what would you recommend?

 

[laviniuc]

http://www.newegg.com/Product/Product.aspx?Item=N82E16817116021 or another one you find at 1000W should be better. don't sell it yet, maybe my reply was too rushed though, maybe the 850W is enough.

try leaving just one of the gpu's active and see where it gets you in terms of overclocking. if it works better it means the psu is keeping you down when trying to do them both.