Graphic card with 2x external power connectors

[Lite9112]

Hi, I just bought a new graphic card (GTX 760).It comes with 2 external power connectors.My doubt is, do I need to connect just one of them or both.
Thanks in advance.

 

[Onus]

You need to connect both of them. What is the brand and model (not just wattage) of your PSU? If it has one PCIe power connection, it may be safe to use an adapter for the second one. If it has NO PCIe power cables, it may not have sufficient +12V amperage (regardless of what its label claims) to safely run your card.

 

[Lite9112]

Thank you, PSU is a OCZ modstr pro 700w with 2 native PCI-E power connectors.

 

[Lite9112]

BTW, which tool for monitoring temps and performance do you suggest?

 

[Onus]

That PSU should be fine for your card.
A lot of people use MSI's Afterburner to monitor their graphics card's performance and temperature, and/or modify its fan speed.