double molex adapter + 1x 6pin for gpu??

[Panos Inn]

Hello community,

I recently bought Gigabyte R9-270 gpu in an efford to upgrade my old pc but when i opened the box i noticed that the gpu takes 2x 6pin cables.
I am using Thermaltake TR2-470W psu which i believe is powerfull enought for my system (i've calculated power requirements through extreme outervision website) but it only has 1x 6pin (pci-e cable)
I have a Dual-4-Pin-Molex-to-6-Pin-PCI adapter and i would like to know if it's safe to use it or if there's any other adapters to solve this issue instead of buying a new psu.

Thank you

http://www.gigabyte.com/products/product-page.aspx?pid=4840#ov
http://www.thermaltake.com/products-model.aspx?id=C_00001027
http://www.extreme.outervision.com/tools.jsp
http://www.ebay.com.au/itm/Dual-4-Pin-Molex-to-6-Pin-PCI-E-Power-Cable-Adapter-VGA-/170583059349

 

[wss_003]

I borrowed this info from another post

For a system using a single Radeon R9 270 graphics card AMD specifies a minimum of a 500 Watt or greater system power supply. The power supply should also have a maximum combined +12 Volt continuous current rating of 28 Amps or greater and have at least one 6-pin PCI Express supplementary power connectors.

and that psu has dual 12v rails BUT the max on one is 14amps and the max on two is 15amps so if it were me i would not even attempt to adapt that psu i would replace it

 

[MauveCloud]

Thermaltake TR2 is Tier 5 here: https://community.newegg.com/eggxpert/computer_hardware/f/135081/t/45344.aspx?Redirected=true
so I'd advise just replacing it with a better model.
With a good-quality psu, one molex to pci-e adapter purchased directly from a reputable vendor site would probably be safe until you could save up for a psu with enough pci-e power connectors. However, I wouldn't trust one purchased from ebay, especially with that psu.

 

[unksol]

That is one of the worst PSUs. I would highly suggest buying a new one. It is garbage.

to give you an idea of the TR2 series since they don't have one for the 470, the TR430 review. its awful
www.hardwaresecrets.com/article/Thermaltake-Purepower-430W-NP-Power-Supply-Review/332/9

 

[toyftw]

Hello community,

I recently bought Gigabyte R9-270 gpu in an efford to upgrade my old pc but when i opened the box i noticed that the gpu takes 2x 6pin cables.
I am using Thermaltake TR2-470W psu which i believe is powerfull enought for my system (i've calculated power requirements through extreme outervision website) but it only has 1x 6pin (pci-e cable)
I have a Dual-4-Pin-Molex-to-6-Pin-PCI adapter and i would like to know if it's safe to use it or if there's any other adapters to solve this issue instead of buying a new psu.

Thank you

http://www.gigabyte.com/products/product-page.aspx?pid=4840#ov
http://www.thermaltake.com/products-model.aspx?id=C_00001027
http://www.extreme.outervision.com/tools.jsp
http://www.ebay.com.au/itm/Dual-4-Pin-Molex-to-6-Pin-PCI-E-Power-Cable-Adapter-VGA-/170583059349

Hi - It will be close - you might have enough power. You do not need 28 +12v amps for that
GPU & System, but you need 22-24 +12v amps. Thermaltake site doesn't specify the total +12v amps
available, but it's always less than the sum of the separate rails, so it's less than 29 +12v amps &
probably no more than 24.

You might get by, personally I wouldn't risk it, especially with a TR2.

 

[MauveCloud]

Hi - It will be close - you might have enough power. You do not need 28 +12v amps for that
GPU & System, but you need 22-24 +12v amps. Thermaltake site doesn't specify the total +12v amps
available, but it's always less than the sum of the separate rails, so it's less than 29 +12v amps &
probably no more than 24.

You might get by, personally I wouldn't risk it, especially with a TR2.

The total amps needed might also depend a bit on the cpu in use, which hasn't been specified. Also, if the site or psu sticker doesn't specify the total amps (or at least wattage, which would allow calculating the amps) available among multiple +12V rails, it's safer to assume they're non-combining.