Nvidia GPU chip problem - Page 9 - GSM-Forum

Nicpoe · 01-22-2011, 19:23

Take a look at this: why-nvidia-chips-defective

Thats why i search bga that are manufactured in 2008 or later. This problem is not fixable and maybe the reason why my fixed units fails after a couple of months.

But where can i get those new bga's? What datecode is on the bga that is manufactured after 2008?

Sorry for the double post, but i can't see my entry for hours.

Trion · 01-27-2011, 18:10

The most important thing i'm trying to tell all people is that most machines that cost under 2000 USD can't show the temperature accurately. So what the machine shows may not be the actual temperature. I find that my machine shows 7-10 degrees less than the actual component temperature. This can be verified by using a second temperature probe like some others on this forum or by using an infra red thermometer.

Good quality genuine flux is necessary for rework.

B.R.

monitron · 01-28-2011, 15:38

Hi Trion,

What in your opinion is good flux? I tried many brands like Amtech, Kester, Kingbo.

For reballing i prefer the kingbo. For reflowing i prefer the Amtech 223
TPD-UV All for leaded solder.

The Amtech was genuine. Not the fake they sell on Ebay.

pentu · 01-29-2011, 08:22

Quote:

Originally Posted by monitron

Hi Trion,

What in your opinion is good flux? I tried many brands like Amtech, Kester, Kingbo.

For reballing i prefer the kingbo. For reflowing i prefer the Amtech 223
TPD-UV All for leaded solder.

The Amtech was genuine. Not the fake they sell on Ebay.

hi, use interflux, belgium, ILF8300 BGA tacky gel flux, it is very good.

monitron · 01-29-2011, 15:41

Thanks, i found the website and will order it monday. Let you know what i think about it.

Angello · 02-20-2011, 14:27

Quote:

Originally Posted by ShadowmanX

1) better look into some tools at price about 24k GBP or 29k EUR - it is nearest true

29000€ or 2900€ ? But it is the same,your word are wrong.For make a repair it is not necessary to pay a tools with lots of money if you are a good technician.

Quote:

Originally Posted by ShadowmanX

2) If U do not change broken chip - Your work is vain...

How to know if it is broken?
Wrong a good reball can repair problem.

Quote:

Originally Posted by ShadowmanX

3) If chip's connection broken and U cannot resolder it correctly - Your work is vain...

You have right.

Quote:

Originally Posted by ShadowmanX

4) If U do not resolve cooling and mechanical problem - Your work is vain...

Maybe but...A good thermal can help too.

kerim92 · 02-25-2011, 06:05

i have a mbx-149 vaio 7600gpu motherboard.
gpu chip fall down from pump during remove.
5 or 6 resistors mixed there.

it is near gpu crystal.

anyone have that motherboard can upload a picture of gpu side of this mobo?_

it does not matter 7600 or g73 same mobo. just mbx-149
i googled and saw many pictures but i can't see resistors on any picture. and pictures on internet is very small. i have already search alibaba, aliexpress, taobao, ebay, and other sites. cant find a good image.
im waiting a big image of gpu side. i need to fix that problem and dont have time. tomorrow customer will come and im confused with that resistors.
already thanks for help.

Kujoy · 02-28-2011, 19:51

Quote:

Originally Posted by kerim92

i have a mbx-149 vaio 7600gpu motherboard.
gpu chip fall down from pump during remove.
5 or 6 resistors mixed there.

it is near gpu crystal.

anyone have that motherboard can upload a picture of gpu side of this mobo?_

it does not matter 7600 or g73 same mobo. just mbx-149
i googled and saw many pictures but i can't see resistors on any picture. and pictures on internet is very small. i have already search alibaba, aliexpress, taobao, ebay, and other sites. cant find a good image.
im waiting a big image of gpu side. i need to fix that problem and dont have time. tomorrow customer will come and im confused with that resistors.
already thanks for help.

i should have a few of these kicking around the workshop, if no one beats me to it i will upload an image.

worked on quite a few of these over last few years, and only ever needed to reflow them.

kerim92 · 03-01-2011, 05:19

Quote:

Originally Posted by Kujoy

i should have a few of these kicking around the workshop, if no one beats me to it i will upload an image.

worked on quite a few of these over last few years, and only ever needed to reflow them.

thanks 4 reply.
i ll wait.

Kujoy · 03-01-2011, 12:32

Quote:

Originally Posted by Kujoy

i should have a few of these kicking around the workshop, if no one beats me to it i will upload an image.

worked on quite a few of these over last few years, and only ever needed to reflow them.

kerim92 · 03-01-2011, 18:03

Quote:

Originally Posted by Kujoy

thanks 4 reply and 4 image.

but it is dv9000

i mean left side of gpu. (motherboard)

no problem. i will take back that computer to customer.

Kujoy · 03-01-2011, 18:40

ah sorry I misread it. I thought you had knocked the resistors off the top of the GPU, and well spotted it is a DV9000. Think the only sony board I have is a MBX-160.. But if I one first thing in the morning I will get a picture up.

kerim92 · 03-02-2011, 07:15

Quote:

Originally Posted by Kujoy

ah sorry I misread it. I thought you had knocked the resistors off the top of the GPU, and well spotted it is a DV9000. Think the only sony board I have is a MBX-160.. But if I one first thing in the morning I will get a picture up.

you try to help. thanks. i wish help you too if you have problem with any notebook board and any problem.

kerim92 · 03-09-2011, 08:52

hi all,

here new problem
no luck on all sis m672 chipsets with clevo 762 motherboards.

i try reball, used chips, new chips... no luck.

the real problem was, when i press on chipset little bit, it works. i changed chipsets but no luck.

ever no luck all on sis chipsets.

any suggestions?

monitron · 03-10-2011, 09:20

Hi,

I had some problems with this chip in the beginning. Now i put kapton tape on the metal part of the chip. Then i preheat to 120 degrees and then reflow.

Very important is that you keep the time between liquid longer as usual. I use 70-80 secs. But keep your eye on the max temp during that time.

Make sure your have only one unkown factor. What i mean is that you could have corrupted the bios and are focussing on the chip.

HTH

02-25-2011, 06:05	#127 (permalink)
kerim92 Freak Poster Join Date: Jun 2006 Posts: 159 Member: 301521 Status: Offline Thanks: 4 Thanked 10 Times in 7 Posts	7600 i have a mbx-149 vaio 7600gpu motherboard. gpu chip fall down from pump during remove. 5 or 6 resistors mixed there. it is near gpu crystal. anyone have that motherboard can upload a picture of gpu side of this mobo?_ it does not matter 7600 or g73 same mobo. just mbx-149 i googled and saw many pictures but i can't see resistors on any picture. and pictures on internet is very small. i have already search alibaba, aliexpress, taobao, ebay, and other sites. cant find a good image. im waiting a big image of gpu side. i need to fix that problem and dont have time. tomorrow customer will come and im confused with that resistors. already thanks for help.

03-09-2011, 08:52	#134 (permalink)
kerim92 Freak Poster Join Date: Jun 2006 Posts: 159 Member: 301521 Status: Offline Thanks: 4 Thanked 10 Times in 7 Posts	hi hi all, here new problem no luck on all sis m672 chipsets with clevo 762 motherboards. i try reball, used chips, new chips... no luck. the real problem was, when i press on chipset little bit, it works. i changed chipsets but no luck. ever no luck all on sis chipsets. any suggestions?

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01-22-2011, 19:23	#121 (permalink)
Nicpoe Junior Member Join Date: Dec 2010 Posts: 15 Member: 1461747 Status: Offline Thanks: 1 Thanked 0 Times in 0 Posts	Take a look at this: why-nvidia-chips-defective Thats why i search bga that are manufactured in 2008 or later. This problem is not fixable and maybe the reason why my fixed units fails after a couple of months. But where can i get those new bga's? What datecode is on the bga that is manufactured after 2008? Sorry for the double post, but i can't see my entry for hours.

01-27-2011, 18:10	#122 (permalink)
Trion Freak Poster Join Date: Nov 2003 Posts: 369 Member: 44625 Status: Offline Thanks: 23 Thanked 35 Times in 22 Posts	The most important thing i'm trying to tell all people is that most machines that cost under 2000 USD can't show the temperature accurately. So what the machine shows may not be the actual temperature. I find that my machine shows 7-10 degrees less than the actual component temperature. This can be verified by using a second temperature probe like some others on this forum or by using an infra red thermometer. Good quality genuine flux is necessary for rework. B.R.

01-28-2011, 15:38	#123 (permalink)
monitron Junior Member Join Date: Feb 2010 Location: Netherlands Posts: 31 Member: 1242964 Status: Offline Thanks: 4 Thanked 5 Times in 5 Posts	Hi Trion, What in your opinion is good flux? I tried many brands like Amtech, Kester, Kingbo. For reballing i prefer the kingbo. For reflowing i prefer the Amtech 223 TPD-UV All for leaded solder. The Amtech was genuine. Not the fake they sell on Ebay.

01-29-2011, 15:41	#125 (permalink)
monitron Junior Member Join Date: Feb 2010 Location: Netherlands Posts: 31 Member: 1242964 Status: Offline Thanks: 4 Thanked 5 Times in 5 Posts	Thanks, i found the website and will order it monday. Let you know what i think about it.

03-01-2011, 18:40	#132 (permalink)
Kujoy Major Poster Join Date: Apr 2010 Location: Scarborough, United Kingdon. Age: 44 Posts: 41 Member: 1285693 Status: Offline Thanks: 1 Thanked 5 Times in 5 Posts	ah sorry I misread it. I thought you had knocked the resistors off the top of the GPU, and well spotted it is a DV9000. Think the only sony board I have is a MBX-160.. But if I one first thing in the morning I will get a picture up.

03-10-2011, 09:20	#135 (permalink)
monitron Junior Member Join Date: Feb 2010 Location: Netherlands Posts: 31 Member: 1242964 Status: Offline Thanks: 4 Thanked 5 Times in 5 Posts	Hi, I had some problems with this chip in the beginning. Now i put kapton tape on the metal part of the chip. Then i preheat to 120 degrees and then reflow. Very important is that you keep the time between liquid longer as usual. I use 70-80 secs. But keep your eye on the max temp during that time. Make sure your have only one unkown factor. What i mean is that you could have corrupted the bios and are focussing on the chip. HTH