BGA Replacement

[sebuncle]

hello here is a table of compatibility for the replacement of nvidia chips

---- ---------- recommended-------possible
G86-300-A2 --> G86-731-A2 --> G86-730-A2
G86-302-A2 --> G86-731-A2 --> G86-730-A2
G86-303-A2 --> G86-731-A2 --> G86-730-A2
G86-602-A2--> G86-631-A2 --> G86-603-A2, G86-620-A2, G86-630-A2
G86-603-A2--> G86-631-A2 --> G86-630-A2
G86-620-A2--> G86-631-A2 --> G86-630-A2
G86-625-A2--> G86-635-A2 --> G86-630-A2
G86-630-A2--> G86-631-A2
G86-631-A2--> G86-631-A2 --> G86-630-A2
G86-635-A2--> G86-635-A2
G86-703-A2--> G86-731-A2 --> G86-730-A2
G86-730-A2--> G86-731-A2 --> G86-730-A2
G86-731-A2--> G86-731-A2 --> G86-730-A2
G86-740-A2--> G86-731-A2 --> G86-730-A2
G86-750-A2--> G86-771-A2 --> G86-770-A2
G86-770-A2--> G86-771-A2 --> G86-750-A2
G86-771-A2--> G86-771-A2 --> G86-770-A2

[japlytic]

Re: BGA Replacement

Welcome, sebuncle!

BGA chips are a nightmare to work with (as well as troubleshoot) and require expensive equipment to remove them, as well as solder new ones in their place, which requires great skill.

[uligli]

Re: BGA Replacement

I tried to bake a Toshiba Tecra M3 (motherboard with 6200go) today, haha, fail...

[mockingbird]

Re: BGA Replacement

BGA reballing can be done, I've seen how they do it, but a reball will cost you a lot, especially if the guy doesn't have the stencils. It's not as difficult as it looks, but someone here mentioned that it's not just the unleaded solder which is the problem with nVidia, it's also the fact that the die is missing heat dissipation metal.

So what's the point of replacing the chip if you can just reflow it. Maybe the new one will last a little longer. Yesterday I did a reflow on a motherboard with nForce 6. It worked for as long as I needed it (Install Windows XP and flash my XBOX DVD) and will probably work for a few months more but I'm not using it in my system.

[sebuncle]

Re: BGA Replacement

generally nvidia chips are defective.
rebailling rarely repaired and motherboard will not accept too many firing cycles to solder and desoldering
I prefer to change the chip as the reballing

[stj]

Re: BGA Replacement

you need to lower the core voltage and the clockspeed.

they die because nvidia overclocked them to make the performance look better against ati chips.

[Per Hansson]

Re: BGA Replacement

nVidia cards fail due to improper underfill used in the die itself, the BGA interconnect solder balls are also somewhat to blame, but the biggest problem is internal in the die

sebuncle; are these BGA's you list using the new updated Hitachi Underfill? (That supposedly fix the problem)

http://vr-zone.com/articles/3-year-o...resh/6515.html

http://www.theinquirer.net/inquirer/...hips-underfill

[sebybc]

Re: BGA Replacement

Hello,
I just upgraded my HP DV9500 laptop motherboard. Originally had G86-730-A2 and 128 mb ddr2. I replaced the G86-730-A2 with G86-771-A2 wich is the newest version of G86. First time I didn't have signal on the lcd screen. Then I added four DDR2 chips on the non-populated locations of the motherboard. After that the laptop started normally. Now I have 256 MB on the video card that are also recognized by Windows. Hope that this experience will help somebody.

[scsblackdragon]

Re: BGA Replacement

Do you have any information about the G84 series?

[Ramee]

Re: BGA Replacement

Your site contains Malware.
Do you have AliExpress store number?

[dellxps15]

Re: BGA Replacement

Your site contains Malware.
Do you have AliExpress store number?

they are also on ebay.

for jessica: i always bought from your company and another one.

from your company i did some oerder and always got satisfied by my seller contact that suggested me always the best product and what to buy for 100% succcess.

ps: your ebay account doesnt have ship option to osme place and wont show up when someone search for a bga. already informed your company by skype

[highpulse]

Re: BGA Replacement

uiiii m seee_IC????? great chip ?? humm lol ok !!!! dellxps , you have been lucky .

since see_ic is one of the best enterprises counterfaking chipset , if you got some skill chek a board with a original chipset , then look to they're chipset specially the laser write on each die !!!
buts that just an advise.

[dellxps15]

Re: BGA Replacement

did u get fake chips ?

i bought mahy bga and they were ok. just some kb bulk was not good, but they sold me as bulk and not original.

[gcomputers]

Re: BGA Replacement

Hi BGA rework is my passion and now is my bussiness , 4 years ago i bought Jovy re7500,
now i have ZM-R6200 semi automatic . Important is to have right equipments.

[highpulse]

Re: BGA Replacement

gcomputer , you can top edge equipments , if you dont have good electronic component you can put your automatic or semiautomatic to the garbage , because it will not save your work ! simples as that .
i also got the zuomau , and if a chip is not 100% ok , then nothing will save you.

[highpulse]

Re: BGA Replacement

dellxps , yes a few times , even saying brand new chips , and we could notice very easily that the gpu were completely refurbished . and many times they were laser rewritable ..

[highpulse]

Re: BGA Replacement

if you want a trusting seller , ask him about the certificate for each chip

and not company certificate ,,, because they dont make them ,, who make the chips give a certificate , if not certificate then ,,,removed frmo outher board or bought on bulks somewere else

[sasser]

Re: BGA Replacement

Anyone have try buy from golden chipset. I see there many latest bga datecode. Have store at ebay and aliexpress .
I see the bga have 2015 datecode with leadfree balls. If latest manufacturer date then no need bake? Or bake procedure need to do to all bga?

[gcomputers]

Re: BGA Replacement

gcomputer , you can top edge equipments , if you dont have good electronic component you can put your automatic or semiautomatic to the garbage , because it will not save your work ! simples as that .
i also got the zuomau , and if a chip is not 100% ok , then nothing will save you.

I agree with you if the chip is dead the equipments cant do anything , but if you don t have the right equipments you cant be sure if the chip is dead or i have wrong the work (bga), with Jovy the mainboard and the chip buried during the process , only to stack the chip make 20 min , with Zm-r6200 take 2 minuts to stack the chip and no buried anything.


Anyway the best s to replace with new chip.

I buy from Chelison on aliexpress 2014 model .