Will 23 ampere be sufficient to run a hd 7770?

[krishnakhatri]

will 23 ampere be sufficient to run a hd 7770?

 

[muhammadbinmehroze]

Here to make it short and sweet. Look on the PSU and get the amps that are on the 12v rail/rails. They have to be 20 amps or higher.

500W (or greater) power supply with one 75W 6-pin PCI Express power connector recommended..

 

[krishnakhatri]

there is 23 amperes mentioned in the 12 v rails and there are no any such cables that connects the pcie..there are 2 extra power connectors for hard disk,can it figure out the pcie power connector?well,im using this psu since 4 years without a problem so i have not upgraded it.do i need to upgrade it too?

 

[excella1221]

What exactly is your PSU?

 

[muhammadbinmehroze]

PCI-E slot can provide only 75w, PCI-E 2.0 150w , pci-e 6 pin connector 75w and pci-e 8 pin connector 150w.

YOU NEED TO HAVE one 75W 6-pin PCI Express power connector for 7770 as per the card's sysytem requirements!

SYSTEM REQUIREMENTS FOR 7770:
http://www.amd.com/us/products/desktop/graphics/7000/7770/pages/radeon-7770.aspx#3


The Pci-e connectors:

http://techreport.com/r.x/psus-0907/pcie-connectors.jpg

If you dont have one, you need to get a new psu..

 

[InvalidError]

The Pci-e connectors:

http://techreport.com/r.x/psus-0907/pcie-connectors.jpg

If you dont have one, you need to get a new psu..

Using molex-to-PCIe adaptors is fine as long as the PSU's 12V current rating is sufficient and the two molex feeds are from separate cables.

 

[krishnakhatri]

where do i get the molex to pcie adaptor?and where do i connect the molex?

 

[muhammadbinmehroze]

+1 for invalidError...

Depends upon how strong your power supply is. Most psus with only a single PCI-E connector don't provide enough amps on the +12V rails to support a high end card. Most are 450W or lower models anyway, so another plug wouldn't help. Most 550W and higher psus have 2 or more power connectors.

If you have a really good power supply with a single PCI-E connector, then a molex converter should work. Note that most adapters convert two free molexes to a single PCI-E plug.

To connect the molex:
http://www.xpcgear.com/6pinpciexpress.html



U can find it on New egg:

http://www.newegg.com/Product/Product.aspx?Item=N82E16812201004

Cheers!

 

[abhi_reapar]

simply upgrade to a newer psu that will be ur best option..................................

 

[krishnakhatri]

Best answer selected by krishnakhatri.