There is no permanent fix but you can do one of two things. First is using a heat gun and heat up the CPU and GPU by applying heat to them with the gun and letting it cool down. Second is the basic RROD kit fix you can get off of ebay or what not. Both pretty easy i must say.

E-Code / Secondary Error code: E20 (No Audio/Video) / 0110

Known fixes:
1) Reflow the RAM
2) Loosen your heatsink screws and make sure the heatsink isnt shorting out a capacitor...
3) Look for missing and bridged components like resisitors and caps and replace them
4) X-Clamp replacement

Description:
This error is caused by a cold solder joint under one of the RAM chips, mostly its the top ones, sometimes it can also be one of the solder balls under the GPU that lead to the RAM. According to stephen a.j it can also be cause by a broken trace that connects the GPU and the RAM, the reason for it to break could be the flexing in this certain area.

is'nt it a hardware problem and it is realy hard to fix i had to send mine away and it got fixed