Liquid Cooling system

[Feras Kh]

Greetings!
I'm willing to get a Graphics Card Radeon R9 290X to add to my current system but I was concern about two things.
1st: The power required, is my PSU with 720W has sufficient wattage to carry the load or not ?
2nd: I heard that this card has issue with heating and the temperature reaches around 90 degree.
so I was thinking about getting a liquid cooling kit.
I've been through alot of threads and sites and all of them suggesting a customized kits which I don't want.
I want it to be simple not complicated.
I was thinking about something but I wonder if it will work.
If I could make a cooler to my CPU & GPU with a Hydro Series™ H100i .
I know this is designed for CPU only but if I could get an extension tube from the CPU and connect it to the GPU (I will need a GPU block) and then to the radiator to make a loop similar to the customized kits but with less complex.
I'm concern also about leakage of water if I could do this with preventing leakage from happening

My PC components :
CPU: AMD FX 9370
Motherboard: Gigabyte GA-990FXA-UD3
Memory: 1X 8GB 1600 Corsair XMS
Fans: 2 Corsair
Storage: 1 SSD with 128GB & 1 HDD Seagate with 2TB
PSU: Gigabyte 720 Watt

I hope the idea is clear and someone could help me with that.
Thanks

 

[terry4536]

The answer about the power requirements is "it depends". This is an odd situation. I looked up the specifications on the top four or five contenders. Only two reported minimum power supply requirements at all, and they were different. First my favorite (SAPPHIRE TRI-X OC 100361-2SR Radeon R9 290X) requires 750 watts. The only other one that specifies a minimum power supply was Gigabyte. They stated the minimum at 600 watts. So I guess that the minimum is 600 -750 watts?????

The R9 290X reference cards are terrible at cooling. In my opinion they are paperweights waiting to happen. The non-reference R9 290X cards are much better at cooling (Sapphire in particular). The h100i isn't designed to be modify friendly. There is a new cooler master that is similar to h100i but which is designed to be able to add a GPU http://www.newegg.com/Product/Product.aspx?Item=N82E16835103196.

Have you seen this article on toms hardware/ graphics cards?

http://www.tomshardware.com/reviews/cryovenom-r9-290-water-cooling-review,3756.html