Topic: GPU Reballing (Read 527 times)

brandogg · « **Reply #105 on:** April 11, 2009, 02:49:00 PM »

Can't vouch for the GPU, but you cannot replace the CPU alone.

maysam · « **Reply #106 on:** April 12, 2009, 07:04:00 AM »

hi
ok
so,i have replacing a dead GPU with a new GPU from dead Board and.its ok.its working. (IMG:style_emoticons/default/laugh.gif)
thanks to all.

rigards

dannybeckett · « **Reply #107 on:** July 13, 2009, 07:49:00 AM »

SMT,

It appears this guy seems to accomplish a reball and get the console working:

How would you reply to this?

Dan

scorpionrecords · « **Reply #108 on:** July 13, 2009, 08:17:00 AM »

So this is the permanent fix?

nagamin · « **Reply #109 on:** July 13, 2009, 02:26:00 PM »

Check it out.

Still in experiment.

Clean Up

(IMG:http://i568.photobucket.com/albums/ss124/naga74/DSCN0734.jpg)

BGA Arrangement

(IMG:http://i568.photobucket.com/albums/ss124/naga74/DSCN0731.jpg)

Heated

(IMG:http://i568.photobucket.com/albums/ss124/naga74/DSCN0735.jpg)

Error in grid

(IMG:http://i568.photobucket.com/albums/ss124/naga74/DSCN0735-1.jpg)

Finished

(IMG:http://i568.photobucket.com/albums/ss124/naga74/DSCN0732.jpg)

I haven't put back to MOB yet. I will update when I did it.

(IMG:style_emoticons/default/beerchug.gif)

Heet · « **Reply #110 on:** July 13, 2009, 09:17:00 PM »

Dayum. And your in NC? Let me know when you start taking orders

quincer · « **Reply #111 on:** July 13, 2009, 10:31:00 PM »

Wow you will definitely have to give us more pictures very nice looking so far though!

nagamin · « **Reply #112 on:** July 14, 2009, 06:10:00 AM »

Here is some more

SorthBridge Cleaned

(IMG:http://i568.photobucket.com/albums/ss124/naga74/DSCN0743.jpg)

Here is some damage, it is not repaireable.
If your board turn up like that.

(IMG:http://i568.photobucket.com/albums/ss124/naga74/DSCN0745.jpg)

Damage on chips, unrepaireable

(IMG:http://i568.photobucket.com/albums/ss124/naga74/DSCN0740.jpg)

(IMG:http://i568.photobucket.com/albums/ss124/naga74/DSCN0739.jpg)

(IMG:http://i568.photobucket.com/albums/ss124/naga74/DSCN0737.jpg)

This is my fault.

(IMG:http://i568.photobucket.com/albums/ss124/naga74/DSCN0742.jpg)

(IMG:style_emoticons/default/sad.gif)

quincer · « **Reply #113 on:** July 14, 2009, 01:13:00 PM »

Are you going to try and reball the memory chips also since I see the south bridge off?

The

Nice pictures btw!

nagamin · « **Reply #114 on:** July 14, 2009, 02:02:00 PM »

I can, but memory will not get trouble too much.
If error was cause of memory, I'm going to do it.
I will focus on HANA and GPU.
GPU will be main problem. GPU got wider area to cause hogging and sacking.
Also more balls to arrange then other.
HANA will be enough reflow with SMT are flow rework station.

Big problem is BGA ball seat on chip was damaged, we can't bring back.
I'm not sure any encrypted information was store on GPU or not.
One GPU was take me about 45 minutes to place balls, re-arrange and sit on GPU by heat.

haris2887 · « **Reply #115 on:** July 15, 2009, 07:31:00 AM »

DAMN that's is a lot of Lifted pads dude,
Are you using an Thunderhead and FLUX ?

and hot air station are you using , AOYUE ? with 4141 NOZZLE ?

nagamin · « **Reply #116 on:** July 15, 2009, 08:31:00 AM »

QUOTE(haris2887 @ Jul 15 2009, 09:31 AM)

DAMN that's is a lot of Lifted pads dude,
Are you using an Thunderhead and FLUX ?

and hot air station are you using , AOYUE ? with 4141 NOZZLE ?

Yes, I'm using AOYUE 2702A+ rework staion, 4141 nozzel, Aoyue 853A preheat station and flux.
But those are taken from bad MOB, which was doesn't work by reflow. So I decide to take a look at it.
Top side lifted was my fault. I lost concentration and nozzel was touch when hot. Underneath damege was what I found from un-reflowable MOB.
For reballing, I will going to use IR rework station. But price is too high.
At least 100 reballing to recover the cost of station, meterial and workmenship.

Nicpoe · « **Reply #117 on:** July 26, 2009, 04:56:00 AM »

I also try to fix the 3 red lights issue. First i try it with a cheap ir machine from china, and now i have a 8.000 eur machine from germany here. But with both machines most of the xbox didn't work. Till the reballing step it works all fine, only soldering back the gpu is a very difficult thing. The board is extremely warping, and i have a underheat over the complete board size.

After desoldering the gpu again, it seems that some solder balls are not connected, they are clean as before. And yes, i use flux before i solder back the gpu.

Only three xbox 360 of maybe 25 works after that. Really a bad produce.

nagamin · « **Reply #118 on:** July 26, 2009, 10:26:00 AM »

Is that, last one was IR or hot air?
Did you using nozzel? Can you tell me solder ball you using is 63/37 or what?
What is your heat profile?

rzcosme · « **Reply #119 on:** July 26, 2009, 04:14:00 PM »

QUOTE(nagamin @ Jul 26 2009, 05:26 PM)

Is that, last one was IR or hot air?
Did you using nozzel? Can you tell me solder ball you using is 63/37 or what?
What is your heat profile?

yeah, I would like to know either. If you have some profile using a heat gun with and without the nozzle, plz share with us. I poped my last GPU because I used a high temp (300º C). I can reball the chipset and the Hana chip, but GPU I wanted to know more informations before screw it up again.

Thanks in advance!

Author Topic: GPU Reballing (Read 527 times)