Graphics card’s issues are very common problem that many Macbook’s users encounter after a period of use. Just like a laptop, there are many ways to fix macbook graphics card problem such as reballing the vga chip, replacing the vga chip or switching to use intel intergrated permanently. Tri Nhan will analyze in detail so that you can understand and choose the most suitable solution.
Comparison between the advantages and disadvantages of the vga error handling methods on the MacBook Pro
| Cost | Reliability | Graphics performance | |
|---|---|---|---|
| Reball graphics card | Low | Unstable, will be retained after a period of use | As before |
| Replace new graphics card | High | Stable, but will be retained after a long period of use | As before |
| Switch to intel intergrated graphics | Medium | Thoroughly resolved, graphics never to fail again | Slightly reduced, compensating for cooler and longer battery life |
Principles of transforming MacBook graphics to iGPU
MacBook pro 15 & 17″ was designed to run hybrid graphics: iGPU (Intel integrated graphics) and dGPU (dedicated graphics card: Nvidia, AMD) . However, users can not select the iGPU or dGPU mode actively. System will convert itself following the perfomance needs. And when the dGPU fails, MacBook Pro systems may exhibit distorted video, no video, or unexpected system restarts.
The switch between iGPU and dGPU on the MacBook is managed by a functional circuit called Graphics Muxing, and the center of the block is the GMux chip.
Principles of transforming Macbook graphics to iGPU is processed on the Graphics Muxing block to switch operating mode from dGPU to iGPU, turn off the dGPU permanent.
Difference when switching macbook graphics with Tri Nhan’s gmux chip
Switching macbook vga by hardware has been done by several repair center in the world, but the common feature of all of these is that it’s in the form of strings. Although this method is still successful, but with dozens of copper wire, it is easy to see that the motherboard looks very unattractive and potentially risky shortly after a period of using.
The method of switching permanently macbook pro’s graphics to intel integrated at https://trinhanlaptop.vn is completely different. We reloaded the program that was rewritten for the Gmux chip, so that the chip works in iGPU-only mode and turns off the dGPU completely. The feature of this method is that it does not interfere with the motherboard, there is absolutely no copper wire on the board.
So there will not be any disadvantage when transferring, after transferring the motherboard of your macbook look the same as the original.
This method is the best one as: aesthetic, safe, not afraid to touch like “copper wire” method. Also, it is done on hardware so it will not be affected when you reset SMC, PRAM…as when using the EFI Modding or software switching method.
The list of macbook models can be used with Tri Nhan’s Gmux IC
| MacBook Pro 2009 | A1286 | EMC 2325 | MB985 | MB986 | BTO | CTO |
| MacBook Pro 2010 | A1286 | EMC 2353 | MC371 | MC372 | MC373 | BTO-CTO |
| Macbook Pro 2011 | A1286 | EMC 2353 | MC721 | MC723 | MD035 | MC725 |
| Macbook Pro 2011 | A1286 | EMC 2563 | MD318 | MD322 | BTO-CTO | |
| Macbook Pro 2012 | A1286 | EMC 2556 | MD103 | MD104 | MD546 |
Retina (A1398, A1707) use another Gmux IC (Renesas R4F2133), so we can only re-programmed this IC using ISP method (in system programming). You have to send us your MacBook, after done, we’ll send it back to you.
How to buy Tri Nhan’s Gmux chips
Contact us via email: nhan@trinhanlaptop.vn or Facebook page: fb.com/trinhanlaptop to inform us the quantity of Gmux IC which is on demand. We will send you a quote corresponding to the number of chips you have ordered. If the agreement is established, you transfer the payment to our paypal account. After receiving your payment, Gmux will be dispatched to you through courier service.
Our contact information:
- Tri Nhan Laptop & Macbook Repair Center.
- 266 Ni Su Huynh Lien Street, Ward 10, Tan Binh District, Ho Chi Minh City, Viet Nam.
- Tel: +84.988.661.875 (Mr. Nhân)
- Email: nhan@trinhanlaptop.vn
- Page: fb.com/trinhanlaptop
P/S: You can watch the demo video for macbook pro A1286 with the gmux chip reprogramed by https://trinhanlaptop.vn here:
