Upgrading my PSU...

[donny5150]

Hey folks,

I've got the opportunity to add another GPU (there's a Titan XP going spare at my work) to my PC but I'll need a new PSU to manage all 3 cards. Can I ask some advice to make sure I buy the correct one?

Here's my current spec:

Case	FRACTAL DEFINE R5 BLACK QUIET MID-TOWER CASE
Overclocked CPU	Overclocked Intel® Core™ i7-7820X Eight Core (3.60GHz @ up to 4.6GHz)
OC BIOS FIle
Motherboard	Gigabyte X299 AORUS Gaming 3: ATX, USB 3.1, SATA 6 GB/s
Memory (RAM)	64GB Corsair VENGEANCE DDR4 2666MHz (4 x 16GB)
Graphics Card	11GB NVIDIA GEFORCE GTX 1080 Ti - HDMI, 3x DP GeForce - GTX VR Ready!
2nd Graphics Card	11GB NVIDIA GEFORCE GTX 1080 Ti - HDMI, 3x DP GeForce - GTX VR Ready!
1st Storage Drive	3TB SATA-III 3.5" HDD, 6GB/s, 7200RPM, 64MB CACHE
1st M.2 SSD Drive	512GB SAMSUNG 960 PRO M.2, PCIe NVMe (up to 3500MB/R, 2100MB/W)
DVD/BLU-RAY Drive	NOT REQUIRED
Power Supply	CORSAIR 1000W RMx SERIES™ MODULAR 80 PLUS® GOLD, ULTRA QUIET
Power Cable	1 x 1 Metre UK Power Cable (Kettle Lead)
Processor Cooling	Corsair H100i V2 Hydro Cooler w/ PCS Liquid Series Ultra Quiet Fans
Thermal Paste	EK-TIM ECTOTHERM THERMAL COMPOUND
Sound Card	ONBOARD 8 CHANNEL (7.1) HIGH DEF AUDIO (AS STANDARD)
Wireless/Wired Networking	10/100/1000 GIGABIT LAN PORT (Wi-Fi NOT INCLUDED)
USB/Thunderbolt Options	MIN. 2 x USB 3.0 & 6 x USB 2.0 PORTS @ BACK PANEL + MIN. 2 FRONT PORTS
Operating System	Genuine Windows 10 Home 64 Bit - inc DVD & Single Licence

Can I just swap out the 1000W Corsair PSU for something like this:

HXi Series™ HX1200i High-Performance ATX Power Supply — 1200 Watt 80 Plus® PLATINUM Certified PSU (UK Plug)

HXi Series™ power supplies give you extremely tight voltage control, virtually silent operation, and a fully modular cable set. They’re a great choice for high performance PCs where reliability is essential.

www.corsair.com

Thanks for any help!

 

[BlessedSquirrel]

The GTX1080’s are only 160w
The Titan XP is only 250w

You should be fine with your current PSU

Unless it doesn’t have a third GPU input in which case the HXi series are brilliant PSU’s.

 

[donny5150]

Hey, thanks for your reply.

I actually tried putting the Titan in my machine a while ago and it didn't power on. When I contacted PCS customer support they told me the PSU wasn't powerful enough.

I'll maybe try again, maybe I didn't do something correct first time round.