Temporary RC charger connection

[Meathead]

So I'm trying to figure out how to draw approx 30A @ 12V from this Corsair HX850W PSU without modifying it and voiding my warranty.

Is there any issue with just using exntension cables for the 8pin and the 6pin cables and tying all of the yellows together and all of the blacks together on the extension cables to power something equivalent to this : http://www.progressiverc.com/icharger-3010-b.html

http://www.amazon.com/gp/product/B00BD9R9YC/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER - This is the 6 pin extension

http://www.amazon.com/gp/product/B004LKASDO/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=A2F13KK758WMXQ - This is the 8 pin extension

 

[Bobnova]

Should be fine.
Figure 4 amps per pin on the CPU/GPU power plugs and 7 amps per pin on the Molex plugs.
Note that you need 30 amps of 12v and 30 amps of GND, pin wise, not 30 combined.

Officially speaking the MiniFit Jr (PCIe, CPU) plugs are rated for 7a/pin and the Molex HDD plug for 11a/pin, but staying around or under 50% the rated max is a good idea.

 

[Meathead]

Should be fine.
Figure 4 amps per pin on the CPU/GPU power plugs and 7 amps per pin on the Molex plugs.
Note that you need 30 amps of 12v and 30 amps of GND, pin wise, not 30 combined.

Officially speaking the MiniFit Jr (PCIe, CPU) plugs are rated for 7a/pin and the Molex HDD plug for 11a/pin, but staying around or under 50% the rated max is a good idea.

Thanks. Just in case, I bought 3 molex extensions so I will have every 12V yellow and black except the ones in the 24 pin sleeve. I did buy a 24 pin extension to solder the power_on together and just to have if ever want to mod that and have a stable temporary connection.