PSU

[10ochamberlain1]

Is a 500w PSU enough for my system if I were to add another 270x

[PCPartPicker part list]http://pcpartpicker.com/p/9TK8wP) / [Price breakdown by merchant](http://pcpartpicker.com/p/9TK8wP/by_merchant/)(

Type|Item|Price

:----|:----|:----

**CPU** | [intel Pentium G3258 3.2GHz Dual-Core Processor](http://pcpartpicker.com/part/intel-cpu-bx80646g3258) | $49.99 @ Micro Center

**CPU Cooler** | [Cooler Master Seidon 120V 86.2 CFM Liquid CPU Cooler](http://pcpartpicker.com/part/cooler-master-cpu-cooler-rls12v24pkr1) | $49.99 @ B&H

**Motherboard** | [MSI Z87M GAMING Micro ATX LGA1150 Motherboard](http://pcpartpicker.com/part/msi-motherboard-z87mgaming) | $179.98 @ OutletPC

**Memory** | [Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory](http://pcpartpicker.com/part/corsair-memory-cmz8gx3m2a1600c9b) | $60.88 @ OutletPC

**Video Card** | [MSI Radeon R9 270X 2GB TWIN FROZR Video Card](http://pcpartpicker.com/part/msi-video-card-r9270xgaming2g) | $198.99 @ SuperBiiz

**Case** | [Corsair Air 240 MicroATX Mid Tower Case](http://pcpartpicker.com/part/corsair-case-cc9011069ww) | $77.99 @ Micro Center

**Power Supply** | [EVGA 500W 80+ Certified ATX Power Supply](http://pcpartpicker.com/part/evga-power-supply-100w10500kr) | $29.99 @ NCIX US

| *Prices include shipping, taxes, rebates, and discounts* |

| Total (before mail-in rebates) | $667.81

| Mail-in rebates | -$20.00

| **Total** | **$647.81**

| Generated by [PCPartPicker](http://pcpartpicker.com) 2015-05-06 18:48 EDT-0400 |

[Uwillparish]

i dont think so

[brokencross]

Nope. At least 750w.

btw, protip: get a 270 non x. Then overclock it. They are exactly the same cards, only the X comes overclocked from the factory.

[10ochamberlain1]

Nope. At least 750w.

btw, protip: get a 270 non x. Then overclock it. They are exactly the same cards, only the X comes overclocked from the factory.

I already own the 270x this is just future ideas (adding a second gpu is below custom watercooling in my scheme) but that's a pretty good tip for anyone else

[SecretAuthor]

You people cannot be serious...

 

The PC in my signature uses only 380w at full load. When I had two 7970's, it was drawing only 551w. His will draw considerably less than that.

 

Can you get away with two 270x in crossfire, with a 500w PSU? Yes. But you won't have any headroom left at all.

[brokencross]

You people cannot be serious...

 

The PC in my signature uses only 380w at full load. When I had two 7970's, it was drawing only 551w. His will draw considerably less than that.

 

Can you get away with two 270x in crossfire, with a 500w PSU? Yes. But you won't have any headroom left at all.

Each 270X eats 150w at full load average. OC'ed it'll probably reach 200. 400w, an OCed cpu and other components... Well, 500w isn't cutting it close. It's near suicidal. 

[SecretAuthor]

Each 270X eats 150w at full load average. OC'ed it'll probably reach 200. 400w, an OCed cpu and other components... Well, 500w isn't cutting it close. It's near suicidal. 

Nobody in the right mind would heavily overclock their hardware if they knew they had very little headroom. He didn't even say that he's overclocking, but you went ahead and assumed that anyway. Let's say that you're right, and that the two cards would consume about 300w together at full load. That'll give his other components 150w to play with, and the other 50w as a bit of a headroom. Suddenly your advice falls on it's face.

 

And btw, when I mentioned my old setup with an OC'ed i7 4790k and 2x 7970's, that was on my old 600w PSU... zOMFG right?? yeah...

[10ochamberlain1]

Nobody in the right mind would heavily overclock their hardware if they knew they had very little headroom. He didn't even say that he's overclocking, but you went ahead and assumed that anyway. Let's say that you're right, and that the two cards would consume about 300w together at full load. That'll give his other components 150w to play with, and the other 50w as a bit of a headroom. Suddenly your advice falls on it's face.

 

And btw, when I mentioned my old setup with an OC'ed i7 4790k and 2x 7970's, that was on my old 600w PSU... zOMFG right?? yeah...

 

Nah i dont overclock anything but my cpu and thats a pentium g3258 at 4.3 (1.3v) so nothing too heavy there

[Aniallation]

Is a 500w PSU enough for my system if I were to add another 270x

 

Nope. At least 750w.

btw, protip: get a 270 non x. Then overclock it. They are exactly the same cards, only the X comes overclocked from the factory.

 

750W is overkill.

 

Proof: