Topic: Xbox 360 Cool=e74 Warmed Up=works Perfectly (Read 122 times)

Boobers · « **on:** April 08, 2008, 09:48:00 AM »

I have an HDMI 360 that has an interesting problem.

When first powering it up from being off for a while, I get an E-74 error. I let it sit like that for about 15-20 mins. After the unit warms up, I power it off, then power it back on.. It boots up perfectly and runs a "Burn In" Demo flawlessly. Even as long as 24 hours straight.

I have tried the "Xbox 360 BAKE Recipe" that has fixed every E-74 unit I have ever had. But this one isn't fixed.

To sum up, when it is cold, it gives me an E-74. When it is warmed up, it works flawlessly for hours and even days.

Anyone???

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evilempire86 · « **Reply #1 on:** April 08, 2008, 11:17:00 AM »

I have exactly the same problem. I can't seem to fix it, and microsoft won't because the problem won't happen when I'm on the phone to them. What giveS?

Boobers · « **Reply #2 on:** April 08, 2008, 11:53:00 AM »

Yea, the mechanics of it are not hard to figure out.

Obviously, there is a connection on the motherboard that is not properly connected. As the motherboard warms up, the connection expands and becomes re-connected..

In theory, the fix would appear to be to let the connections expand and become malleable via the 3-RROD Fix Overheat method.. Barring that, a "bake" of the motherboard (using the 360 Bake Recipe) would (again, in theory) fix the problem..

I have tried those two fixes to no avail..

I am guessing that a Reflow of the GPU appears to be in order...

Anyone concur??

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Havok · « **Reply #3 on:** April 08, 2008, 12:05:00 PM »

Overheating does not cause reflowing of solder. The crack in the GPU solder is just large enough so that the tiny thermal expansion caused by overheating doesn't work.

So yes.. reflow is the proper solution.

jimwross · « **Reply #4 on:** April 08, 2008, 12:11:00 PM »

http://forums.xbox-scene.com/index.php?showtopic=646900

B0N3D · « **Reply #5 on:** April 09, 2008, 09:52:00 AM »

I've received the one red light and E74. By heating up the scaler chip with a blow dryer and applying pressure with the penny stack, I can play for about a day until I get the one red light again.

My question .. this solution seems to apply only to a full blown 3 RROD. I've never got this, so do I have to go through the X-Clamp method, or will heating up the bottom of the motherboard with a heat gun around the ANA area fix this?

I've also heard that my particular issue (one red lighy/E74) is inside the actual chip, not solder connections.

jimwross · « **Reply #6 on:** April 09, 2008, 09:26:00 AM »

QUOTE(B0N3D @ Apr 9 2008, 10:52 AM)

I've received the one red light and E74. By heating up the scaler chip with a blow dryer and applying pressure with the penny stack, I can play for about a day until I get the one red light again.

My question .. this solution seems to apply only to a full blown 3 RROD. I've never got this, so do I have to go through the X-Clamp method, or will heating up the bottom of the motherboard with a heat gun around the ANA area fix this?

I've also heard that my particular issue (one red lighy/E74) is inside the actual chip, not solder connections.

What solution only applies to 3RLOD?

Your blow dryer isn't getting anywhere NEAR as hot as you need it to.

Read through that tutorial I posted, i'd bet that it would work out for you. That penny stack idea is b.s. imo, it doesnt address the problem really at hand. If you want to, heat the ANA chip itself up as well and put pressure on it, but do so very briefly and make sure the pressure is STRAIGHT down.

Boobers · « **Reply #7 on:** April 09, 2008, 12:37:00 PM »

In my particular case, this 360 works fine after it warms up for about 10 mins... It's just initially turning it on and getting the E-74 is annoying..

My only concern is that this issue might be the proverbial tip of the iceberg that is indicative of greater problems.

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larsenmash · « **Reply #8 on:** January 14, 2009, 11:49:00 AM »

I hate to bump a topic as old as this. But I have a xbox with the same issue. First boot up after sitting, I either get no video or a e74 error (99% og the time its e74) but I turn it right back off, then back on and works fine, I have been playing this xbox box for 3 weeks solind now, and it still runs great....it just takes 2 boot ups to start. Not a prob for me but I have a elite now and need to sell this one. I have tryed unplugging fans and overheating with no success...... should I go the heat gun rout and heat the ana chip? Any ideas would be great

woody21_1 · « **Reply #9 on:** January 14, 2009, 12:38:00 PM »

if youre wanting to sell it then dont attempt any repair at all...

most on here would rather buy it if you had left it alone, cooking the crap out of it by unplugging the fans actually risks doing more damage to the already cracked and failing solders and will lower the value as it makes it less repairable.

best to advertise it as it is before you attempt a heatgun fix as theres a good chance you could do more harm than good and end up having to part it out and get less for it, especially if you havent done a heatgun fix before.

larsenmash · « **Reply #10 on:** January 14, 2009, 01:38:00 PM »

xclamp replacement has been done (lawdawgs method) it was e74 before that but was non functional. after xclamp replacement it works, just does not boot up first try. Im not worried about fucking it up, if i do, I will just get rid of it broken(I only paid 50 for it, Im not worried about losing money on it), I would rather sell it broken then sell some one a semi functional console. I can either fix it or I can't. My question is, what would be the best rout to go down? I am assuming heat gun but was looking for more advice. thanks.
Edit: I should correct myself, I did deviate from lawdawgs method a bit, I did not unplug the fans. I just blocked the air from the GPU side, as to heat up the GPU but not the CPU. I don't see the point of heating up the CPU if not necessary.

larsenmash · « **Reply #11 on:** January 14, 2009, 02:52:00 PM »

I really would rather not use a heat gun on it. Is there a better way to do this? I have a feeling it is a connection under or near the ANA chip, and the chip just doesn't get hot enough to reflow the solder. It is obviously a very minor break in the connection somewhere, as soon as it even gets a little warm its expanding and making a connection. Any advice on this? There has got to be a better way. diverting the airflow is not working (ANA chip doesn't get hot enough!)

woody21_1 · « **Reply #12 on:** January 14, 2009, 03:18:00 PM »

heatguns are used because its the only tool that gets hot enough that can be bought cheaply if you dont already have one.

only other option is a hot air reflow station. you will have a better chance of reflowing with this as its more precise but is an advanced tool that will need practicing with and isnt cheap

i have once or twice seen pro relowing offered on here but only in the US so far.

larsenmash · « **Reply #13 on:** January 14, 2009, 03:30:00 PM »

thanks for the advice woody. I am borrowing a heat gun tomorrow, will try gently heating up the ANA chip, and will post results here.

Author Topic: Xbox 360 Cool=e74 Warmed Up=works Perfectly (Read 122 times)