stegzy Where is your Aud_Clamp Jtag wiring, I don't see it under nor on Top? This may be the problem here I don't see why so many people don't ask this. If you do have it please take pictures of it.
If you do need to do it here is a picture you are going to need Two Diodes 1N914 are fine and...
This could be a lot of things but like QUIK SCOPES mentioned try a friends power supply. If that works then you found your problem just buy a new one.
Does the LED on the power brick go away when you plug it in?
Does it make the turning on noise when you try to power it?
No they never made knock off CR4's and they don't sell fake stuff on modchipcentral. Even though knock off chips work pretty well from personal experience. For consoles thet need rgh2 the best hack to use is RGH 1.2/RJTOP.
With the CR4 you should be able to get it to boot with 1 flash. You...
Then do the RGH2+ And follow this step by step
http://team-xecuter.com/forums/threads/148002-CR4-XL-PHAT-Opus-Falcon-Jasper-Install-Guide-%28RGH2-%29
or you can get them at RadioShack for $5 for a pack of 50.
For one your are doing the RJTAG+ Wiring. Where is your JTAG wiring? You need to wire up the alt jtag wiring. And you need to flash the small block alt jtag wiring for CR4.
Edit: Dip settings for RJTAG+ is all down for Jasper's.