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Radeon hd 7770 power connectors

Tags:
  • Graphics
  • HD
  • Power
  • Radeon
Last response: in Graphics & Displays
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March 23, 2014 6:37:58 PM

Hey, I have an Acer Aspire ATC 105 EB11 desktop. I'm thinking of putting a radeon hd 7770 into it. It already has a PCI E x16 slot, but I'm not sure how to connect the two power connectors. Please help!!

More about : radeon 7770 power connectors

March 24, 2014 4:13:00 PM

The card itself should only have one 6 pin header on it. Does your PSU have a 6 pin PCIe power cable available? If so, plug it into that.
If not, you are probably using the 6 pin to 4 pin Molex adapters... in which case you would connect the adapter(s) to a matching Molex connector from the PSU.
What size is you PSU and which HD 7770 card are you using.
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March 25, 2014 6:53:33 AM

This is my PSU - This is the link below
http://www.txcesssurplus.com/servlet/the-6058/Dell-R850...
Although on the website, it says Dell, my desktop is Acer.
I don't know about the length, or width.

My PSU does not have a 6 pin power connector because its only 300w. And I'm using the diamond radon hd 7770 1GB GDDR5 GHz edition. It does have two 4 pin molex cables.
Do you think I should replace my power supply with a 500w PSU?
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March 25, 2014 7:11:32 AM

According to the specs listed for that PSU, it only has a single +12V rail that is rated for a meager 18 amps. That isn't enough to comfortably run that graphics card. I would expect it to cause a shut down or re-boot the PC when it got stressed. Yes, for best (and safest) results, you should have a good quality 450W or better PSU. Do you have a budget limit you want to spend on a new PSU?
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March 25, 2014 7:51:59 AM

Yeah, around $50 - $70.
I want to get one that's over at least 500w

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Best solution

March 25, 2014 8:09:38 AM

I have had good experience with several budget builds using this Antec PSU: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Here are some others in that price/power range that you can consider: http://www.newegg.com/Product/ProductList.aspx?Submit=E...
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March 25, 2014 6:31:02 PM

Alright thanks man. I might buy a new PSU next week. Really appreciate all the help!!!!!

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