do i need a replacement?

[Redicat]

So i want to buy a new grapichs card for a 2 way SLI configuration

 

Asus GTX 760 2GB they say these things run 250WAT at 100% load

 

So i went and calculate the wattage i should need after that SLI upgrade...

 

 

Most sites for calculating tell me 500-550W.

 

Currently having a Cooler Master G450M (450W) - http://www.coolermaster.com/powersupply/modular-gm-series/g450m/

 

 

So this means it might not even run or it runs but there is a chance of a unexpected shutdown

 

 

I'm sure these calculations are just up the roof (FAT) and it might just run on 450W, if not than i'll have to take my GTX 760 out and replace it with an GTX 970 since i know its gonna run already. 

 

I just dont wanne sell anything for an replacement ._.

 

Specs:

 

• CPU
  Intel Core i7 2600 @ 3.40GHz NON K OC -> 3.60GHz
• Motherboard
  ASRock H77 Pro4/MVP - (Socket 1155)
• RAM
  16 GB 2x Dual-Channel 8GB DDR3 @ 1333MHz & 2x unsupported Qaud-Channel 8GB DDR3 @ 1600Mhz (Slightly Bottlenecked)
• GPU
  2X ASUS GeForce GTX760-DC2OC-2GD5 - 2GB - PCI-E 
• Case
  Cooler Master K380
• Storage
  SSDSamsung 840 Evo Series 120GB (OS) / Western Digital Black 1TB - 3.5inch WD1003FZEX - 930GB OEM Ext Hard Disk USB Device (USB SATA)
• PSU
  Cooler Master G450M (450 WATT)
• Display(s)
  Acer P226HQV
• Cooling
  Gelid Solutions Tranquillo Rev.3 - 120mm & 1x 140mm Cooler Master RED case fan 2x 120mm Corsair Air Series SP120 RED LED
• Operating System
  Windows 8 Pro (64 bit)

Oh and im NOT gonna plan overclocking at ALL.

[AlwaysFSX]

Don't SLI 760s... that just doesn't make sense.

 

You're better off getting a 290/290X instead.

[spartaman64]

yes

[Lotus]

Well, for one, I don't think your motherboard supports SLI so I think this entire idea is dead in the water unless you swap that out.

Two, you definitely would need a new PSU.

[nj4ck]

First off, I wouldn't recommend SLIing 760s, you'll run into VRAM issues very soon with just 2GB. Secondly, you should have at least a good 550-600W PSU for it.

 

 

Well, for one, I don't think your motherboard supports SLI so I think this entire idea is dead in the water unless you swap that out.

You're right, that motherboard only supports Crossfire, not SLI.

[Redicat]

Facepalm only 1x PCI 3.0 16x so no SLI supported at all, LOCKED~

[MLG Doge]

Manufacturer ASRock

Part # H77 Pro4/MVP

Form Factor ATX

CPU Socket LGA1155

Chipset Intel H77

Memory Slots 4 x 240-pin

DIMM Memory Type DDR3-1066 / 1333 / 1600

Max Memory 32GB

RAID Support Yes

Onboard Video Depends on CPU

CrossFire Support Yes

SLI Support No

SATA 3 Gb/s 4

SATA 6 Gb/s 4

Onboard Ethernet 1 x 10/100/1000 Mbps

Onboard USB 3.0 Header(s) Yes