600W enough for MSI R9 390 Gaming 8GB?

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FoxKitsune

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Apr 25, 2015
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So I'm going to be upgrading my graphics card here in a few days and originally I was going to go with an EVGA 970 FTW+ 4GB but realized that it would put me down 1 monitor as it has a DVI-I instead of a DVI-D. Anyways I was looking into some other cards in the same price range and came across the MSI R9 390 Gaming 8GB which is cheaper than the GTX 970. So I looked into it and it's pretty much everything and anything I could ever want:

-Support for 3 Monitors (my set-up will be 1x HDMI and 2x DVI-D)
-8GB of RAM
-Higher Memory interface @ 512-Bit
-Backplate
-Bigger fans (at least by the looks of it) w/ larger heatsink for cooler temps (as I've heard AMD get pretty hot)
-More Stream Processors

HOWEVER, here Is my question. On MSI's product page it says that it recommends a 750W PSU and I only have a 600W PSU. Now I ran the numbers and my total wattage for my current upgrade plans for my PC look to be around 510W (Here are my upgraded specs)

-Gigabyte Z97X-Gaming 5 Motherboard
-i7-4790K 4.0GHz
-Cooler Master Hyper EVO 212
-16GB Corsair Vengeance Pro
-MSI R9 390 Gaming 8GB
-2x Stock 120mm Fans
-2x Corsair 120mmSP Fans
-1x Optical Drive (non-BluRay)
-1x Western Digital Blue 1TB
-1x Western Digital Black 4TB

So will my 600W PSU be enough or do I need to upgrade it? I won't be overclocking anything by the way.
 
Solution
turkey3_scratch
It has 46 amps on the 12V rail, so it's basically a 550W power supply. The 12V rail handles the majority of the load, and you want it to have the rated wattage number alone on that rail in 2016. Also, it's rated at 30C, so less wattage there. It uses a poor choice of capacitors, and is not a high quality power supply but a poorer one. The CX should not be powering an expensive rig like yours - most definitely not. This is not a web browsing machine, this is an expensive rig running on a poor PSU.

I would replace it with a 650W EVGA G2. Or a 750W EVGA B2.
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turkey3_scratch

turkey3_scratch

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It has 46 amps on the 12V rail, so it's basically a 550W power supply. The 12V rail handles the majority of the load, and you want it to have the rated wattage number alone on that rail in 2016. Also, it's rated at 30C, so less wattage there. It uses a poor choice of capacitors, and is not a high quality power supply but a poorer one. The CX should not be powering an expensive rig like yours - most definitely not. This is not a web browsing machine, this is an expensive rig running on a poor PSU.

I would replace it with a 650W EVGA G2. Or a 750W EVGA B2.
 
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FoxKitsune

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Apr 25, 2015
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Well my rig has been running just fine for about 8 months but if you say so then I'll upgrade that too seeing as how you know way more than I do. Now here's to hoping I have enough money with that additional upgrade.
 
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rcald2000

rcald2000

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Nov 3, 2009
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If I ran AMD GPU's, I would buy an 1,000 watt tier 1 PSU, so that I'd have the option of placing two R9 390's or Fury X's into CrossFire. I always purchase power supplies that allow me to upgrade at least one level above my current GPU setup. The power supply below represents a very good value for what you're getting.

Corsair RMx RM1000X 1000W
$129.99 after $20.00 rebate card
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139140&ignorebbr=1&cm_re=corsair_1000-_-17-139-140-_-Product

*** power requirements for graphics cards ***
http://www.realhardtechx.com/index_archivos/Page362.htm

*** power supply quality ***
http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html
 
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FoxKitsune

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Apr 25, 2015
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Thanks but I don't ever plan to SLI/Crossfire anytime soon and a 1000W PSU is way out of my budget right now.
 
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