Sign in with
Sign up | Sign in
Your question

2x 7870 Tahiti on a single Antec 500W EarthWatts PSU?

Tags:
  • SSD
  • Antec
  • Hard Drives
  • Graphics
Last response: in Graphics & Displays
Share
December 24, 2013 1:43:59 AM

3570K (not overclocked), 1x SSD, 5x HDD, 7870 Tahiti, Antec 500W EarthWatts PSU.

Runs absolutely fine.

Would it still run fine if I put a second 7870 Tahiti in here?

More about : 7870 tahiti single antec 500w earthwatts psu

December 24, 2013 2:00:16 AM

No AMD recommends around 600W of PSU for sli 7870.

You'd be cutting it close with a 550W power supply but might just pull it off.

Your 500W is too risky and I would absolutely not risk it.
m
0
l
December 24, 2013 2:42:46 AM

Possible but that power supply has only 2 PCI-E leads, CF will need 4 and it's a bad idea to run a powerful card like that off Molex/PCI-E converters, 4 pin Molex is designed to run low power peripherals, not high draw graphics cards.
m
0
l
Related resources
December 24, 2013 3:44:32 AM

Bassim Ansari said:
No AMD recommends around 600W of PSU for sli 7870.

You'd be cutting it close with a 550W power supply but might just pull it off.

Your 500W is too risky and I would absolutely not risk it.

I'll get a 650W+ PSU, then :) 

coozie7 said:
Possible but that power supply has only 2 PCI-E leads, CF will need 4 and it's a bad idea to run a powerful card like that off Molex/PCI-E converters, 4 pin Molex is designed to run low power peripherals, not high draw graphics cards.

Ah yeh, good point - my PSU doesn't even support CrossFireX!

New PSU it is! :) 
m
0
l
!