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[wilgo45]

For E74  - things to do - what I would do

First, reball or reflow the GPU.  If that doesn't do it, which it should, then reball or reflow the HANA chip.

I prefer the Reball work over the reflow

I like doing the heat sink kit replacement.  And you will need to apply a fresh amount of heat sink paste.


Now - just asking, not be rude.  Are you a noob to the repair experience?  Wanting to determine your level of understanding.

If you can't find anyone locally to help with repair ... just message me, could help out in this department

[GoTeamScotch]

Wilgo is right. The E74 is caused when the chips that handle how the Xbox "thinks" come loose from the mainboard from flexing and improper cooling over time. If you don't plan on fixing Xboxes regularly, you can get by with just a hot air gun and or a common breakfast-style griddle. Look up tutorials on reflowing using a griddle for that. The best way to repair the E74 is by reballing the chips, which if you've never done before is a technical and sort of tedious process. It involves heating up the chips enough to where the solder holding them in place melts, allowing you to take them off, clean them, apply better solder and reattach them. If you don't want to or can't do this method, try reflowing with a griddle. If you can't do that, you could try overheating the console until the solder expands enough to make the console work again. This is not a recommend or permanent fix but it will give you some play time for a while. You basically turn it on with the fans only blowing on the tall heatsink (for the CPU) and letting the other one get really hot.

On top of all of these, replacing the X-clamps with heavy duty bolts is a good idea.

Let us know which approach best suits your need and ability and we'll help you out on guides and such.