G86-730-A2 chip - GSM-Forum

monitron · 04-02-2011, 09:38

I have several HP DV9500 notebooks that have problems with the GPU. The GPU is a nvidea G86-730-A2. I have to replace the chip and that's when the problems start.

I cannot get any working chip. I ordered from two sellers on ebay and i ordered directly from a chinese electronics wholesale. All the same problem.

The problem is that when i power on the notebook, the post screen appears but has big vertical bars with coloured stripes. After a few seconds the notebook switches off.

When i reflow the original chip back on the board is works fine. However the original chip is not reliable so it has to be replaced. I have 3 notebooks i tested this on so it is not a faulty replacement of the chip.

Can someone tell me what the problem can be. Are there different versions of this chip? (g86M or ?).

Can someone give me a good seller for this chip.

pentu · 04-02-2011, 09:44

Quote:

Originally Posted by monitron

I have several HP DV9500 notebooks that have problems with the GPU. The GPU is a nvidea G86-730-A2. I have to replace the chip and that's when the problems start.

I cannot get any working chip. I ordered from two sellers on ebay and i ordered directly from a chinese electronics wholesale. All the same problem.

The problem is that when i power on the notebook, the post screen appears but has big vertical bars with coloured stripes. After a few seconds the notebook switches off.

When i reflow the original chip back on the board is works fine. However the original chip is not reliable so it has to be replaced. I have 3 notebooks i tested this on so it is not a faulty replacement of the chip.

Can someone tell me what the problem can be. Are there different versions of this chip? (g86M or ?).

Can someone give me a good seller for this chip.

the chips you have purchased is bad

monitron · 04-02-2011, 13:53

No, they are not bad, they are incompatible. I have 15 pcs. from 3 different sellers that all do exactly the same. Impossible!

There must be an explanation.

Halim_xu · 04-02-2011, 15:22

Quote:

Originally Posted by monitron

I have several HP DV9500 notebooks that have problems with the GPU. The GPU is a nvidea G86-730-A2. I have to replace the chip and that's when the problems start.

I cannot get any working chip. I ordered from two sellers on ebay and i ordered directly from a chinese electronics wholesale. All the same problem.

The problem is that when i power on the notebook, the post screen appears but has big vertical bars with coloured stripes. After a few seconds the notebook switches off.

When i reflow the original chip back on the board is works fine. However the original chip is not reliable so it has to be replaced. I have 3 notebooks i tested this on so it is not a faulty replacement of the chip.

Can someone tell me what the problem can be. Are there different versions of this chip? (g86M or ?).

Can someone give me a good seller for this chip.

Hi, Monitron
pls search for HONGKONG LRF COMPONENT INC LTD on web, they're specially produce video chip,chipset and ics

underbird_gsm · 04-02-2011, 15:27

pentu have right, the chips are defective......... same for me , nvidia chips bought on ebay....****.....

monitron · 04-02-2011, 16:11

Quote:

Originally Posted by underbird_gsm

pentu have right, the chips are defective......... same for me , nvidia chips bought on ebay....****.....

I agree that many bga's that are sold on ebay are bad. But do you think it is possible that 15 chips from 3 different sellers have exactly the same problem?

The reason why i replace them is because i know nvidea chips fail. But they fail in many different ways. (no screen, coloured dots, coloured stripes, no hdmi)

But i cannot believe that this the problem. I think it might has to do with the version. (i.e for pc vid. card or for notebook)

monitron · 04-03-2011, 20:05

Here are some pictures to illustrate the problem

Img 1 (post screen)

Img2 (boot screen)

Img3 (fail and org bga)

Img4 (GPUZ info about org GPU)

ian8115 · 04-05-2011, 12:54

Maybe what you bought are not actually 730 but 703 etc remarked?

pentu · 04-07-2011, 10:37

Quote:

Originally Posted by ian8115

Maybe what you bought are not actually 730 but 703 etc remarked?

Yes, they maybe remarked

monitron · 04-08-2011, 12:09

How do you solve this? I don't want to re-use the original chip. I have to many experience with nVidea gpu's that are bad.

Dan Collins · 04-21-2011, 23:14

Wow, certainly an issue, but let me clue everyone in on what happens in the used chip market.

A big wholesaler will buy a large batch of defects, either wrong markings or bad lot from the motherboard assembly house. Then that gets distributed in smaller quanities to many suppliers. Then the market gets flooded with all these bad chips.

It's ashame for us, but this is not an uncommon problem. even reliable sources get stuck with bad product. They don't throw them out they sell them hoping they will sit in someones inventory and never get used. This is the number one worst problem in our business. getting good product.

Now. Monitron. Find some G86-731-A2 chips with 10 or 11 date code. They should be factory fresh. And try to stick with Taiwan and stay away from Hong Kong and mainland china suppliers.

fahady112 · 05-03-2011, 20:43

i postet it in an other thread....maybe usefull here to.
i had a Sony Vaio Laptop with a g86-750-a2 gf8400m.
I remove the chip ,reball and same results only some pixels.
I found a g86-770-a2 gf8600m and installed it, now it works perfektly!

monitron · 05-11-2011, 22:31

Thank you Dan, this really helps me out! Sorry for the late reply but i forgot to set the email for new posts.

Bekim_OB · 08-04-2011, 20:29

Hello,

anybody any solution for that issue from monitron ?
Have the same with diferent g86-730-A2 from china, date code 07 and 08

Bekim

here pictures

http://www.albatronic.de/IMAG0780.jpg

http://www.albatronic.de/IMAG0781.jpg

Dan Collins · 08-22-2011, 23:24

Bekim,
First pic looks like bad LCD or cable, but I know it isn't. Second pic is definetly video, but maybe video RAM not GPU. Tough call. Could be bad traces? Gut says its not the GPU if you replaced it with same results. But who knows, maybe same bad batch of chips. Buying from China is a real gamble.

04-02-2011, 09:38	#1 (permalink)
monitron Junior Member Join Date: Feb 2010 Location: Netherlands Posts: 36 Member: 1242964 Status: Offline Thanks Meter: 5	G86-730-A2 chip I have several HP DV9500 notebooks that have problems with the GPU. The GPU is a nvidea G86-730-A2. I have to replace the chip and that's when the problems start. I cannot get any working chip. I ordered from two sellers on ebay and i ordered directly from a chinese electronics wholesale. All the same problem. The problem is that when i power on the notebook, the post screen appears but has big vertical bars with coloured stripes. After a few seconds the notebook switches off. When i reflow the original chip back on the board is works fine. However the original chip is not reliable so it has to be replaced. I have 3 notebooks i tested this on so it is not a faulty replacement of the chip. Can someone tell me what the problem can be. Are there different versions of this chip? (g86M or ?). Can someone give me a good seller for this chip.

05-03-2011, 20:43	#12 (permalink)
fahady112 Junior Member Join Date: Jan 2010 Posts: 5 Member: 1219442 Status: Offline Thanks Meter: 1	i postet it in an other thread....maybe usefull here to. i had a Sony Vaio Laptop with a g86-750-a2 gf8400m. I remove the chip ,reball and same results only some pixels. I found a g86-770-a2 gf8600m and installed it, now it works perfektly! Last edited by fahady112; 05-03-2011 at 20:53.

08-04-2011, 20:29	#14 (permalink)
Bekim_OB Junior Member Join Date: May 2011 Posts: 6 Member: 1576270 Status: Offline Thanks Meter: 1	g86-730-A2 Hello, anybody any solution for that issue from monitron ? Have the same with diferent g86-730-A2 from china, date code 07 and 08 Bekim here pictures http://www.albatronic.de/IMAG0780.jpg http://www.albatronic.de/IMAG0781.jpg

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04-02-2011, 13:53	#3 (permalink)
monitron Junior Member Join Date: Feb 2010 Location: Netherlands Posts: 36 Member: 1242964 Status: Offline Thanks Meter: 5	No, they are not bad, they are incompatible. I have 15 pcs. from 3 different sellers that all do exactly the same. Impossible! There must be an explanation.

04-02-2011, 15:27	#5 (permalink)
underbird_gsm Freak Poster Join Date: Apr 2004 Location: romania Posts: 211 Member: 63457 Status: Offline Thanks Meter: 26	pentu have right, the chips are defective......... same for me , nvidia chips bought on ebay....****.....

04-03-2011, 20:05	#7 (permalink)
monitron Junior Member Join Date: Feb 2010 Location: Netherlands Posts: 36 Member: 1242964 Status: Offline Thanks Meter: 5	Here are some pictures to illustrate the problem Img 1 (post screen) Img2 (boot screen) Img3 (fail and org bga) Img4 (GPUZ info about org GPU)

04-05-2011, 12:54	#8 (permalink)
ian8115 Junior Member Join Date: Dec 2006 Posts: 15 Member: 413017 Status: Offline Thanks Meter: 1	Maybe what you bought are not actually 730 but 703 etc remarked?

04-08-2011, 12:09	#10 (permalink)
monitron Junior Member Join Date: Feb 2010 Location: Netherlands Posts: 36 Member: 1242964 Status: Offline Thanks Meter: 5	How do you solve this? I don't want to re-use the original chip. I have to many experience with nVidea gpu's that are bad.

04-21-2011, 23:14	#11 (permalink)
Dan Collins Freak Poster Join Date: Jan 2007 Posts: 210 Member: 437621 Status: Offline Thanks Meter: 19	Wow, certainly an issue, but let me clue everyone in on what happens in the used chip market. A big wholesaler will buy a large batch of defects, either wrong markings or bad lot from the motherboard assembly house. Then that gets distributed in smaller quanities to many suppliers. Then the market gets flooded with all these bad chips. It's ashame for us, but this is not an uncommon problem. even reliable sources get stuck with bad product. They don't throw them out they sell them hoping they will sit in someones inventory and never get used. This is the number one worst problem in our business. getting good product. Now. Monitron. Find some G86-731-A2 chips with 10 or 11 date code. They should be factory fresh. And try to stick with Taiwan and stay away from Hong Kong and mainland china suppliers.

05-11-2011, 22:31	#13 (permalink)
monitron Junior Member Join Date: Feb 2010 Location: Netherlands Posts: 36 Member: 1242964 Status: Offline Thanks Meter: 5	Thank you Dan, this really helps me out! Sorry for the late reply but i forgot to set the email for new posts.

08-22-2011, 23:24	#15 (permalink)
Dan Collins Freak Poster Join Date: Jan 2007 Posts: 210 Member: 437621 Status: Offline Thanks Meter: 19	Bekim, First pic looks like bad LCD or cable, but I know it isn't. Second pic is definetly video, but maybe video RAM not GPU. Tough call. Could be bad traces? Gut says its not the GPU if you replaced it with same results. But who knows, maybe same bad batch of chips. Buying from China is a real gamble.