SAA

Sorry for replying late, I have been very busy with work. @Khenglish You're right, the 850m also came with both DDR3 and GDDR5. IIRC I browsed through some discussions that a user had problems with a vBIOS because it had specified one kind of vRAM, while the user had the other kind. I found through binge-reading up on the subject, so I can't recall what site it was from. But better to be safe than sorry. Are you saying flashing a 850m vBIOS (if I find one) could work if I had installed a 950m core? @senso I have no doubt you encountered issues when trying to swap a G630m core to 640/650. The G630m uses a GF108 core, while 640 and 650 uses GK107 core. (Except for one kind of G640m LE version, which was made in 2 versions: GF108 and GK107. My understanding is that the BGA of these cores are different. 650m and 960/950m is GK107->GM107. The G*107 part would make them compatible. I am basing this on the limited avaible information around this forum and the rest of the internet, so some things may naturally be inaccurate.

@senso I know how to solder, there is absolutely a way to put a 960m there . (Though that would be pointless at this moment, read below) @Khenglish The software I used specified the wrong vRAM in my system, leading me to believe that I had GDDR5 and therefore making me think a 960m is compatible. Research online regarding what were installed on my motherboard gave no results, so I had to open up the notebook to see for myself. To my disappointment I discovered I had Hynix DDR3 vRAM on my motherboard, so a 960m is not compatible after all. There exists, however, a version of the 950m that use DDR3 vRAM, but I'm having trouble locating the vBIOS online. I will do some further research into the issue.

Hello, I'm planning to upgrade the GPU on my Acer notebook from a GT650M (GK107) to a GTX960M (GM107), and I have finally aquired all the tools + core that I need, but I'm missing one last thing. I need modify my vBIOS to accept a Maxwell core on my motherboard, as it is configured to Kepler cores. There exist no official version of my notebook with Maxwell-core GPUs, so no official compatible BIOS is available. I need to learn how to modify my BIOS for this purpose but I have no idea where to begin. Could anyone here provide any guides on how to make this happen? Thank you, SAA

Hello, I found this forum while searching for doing a GPU upgrade on my Acer V3-771g (Geforce GT650m) notebook. For years I've been told that GPUs simply can't be changed on a notebook, but recently I've been searching more thoroughly and found out that notebooks that uses MXM card GPUs can be upgraded, however my notebook does not have this. So I started looking into buying a new computer, but seeing as I live in Norway, a decent gaming laptop costs way too much with my current salary. Then I started looking into the "impossible" as quoted from everywhere online regarding upgrading the GPU on a notebook. During this time, my keyboard broke and I had to send the notebook off to get repaired. While waiting for a rental computer I decided to boot up my old Dell Latitude E5420, but to my dismay it was running slower than ever. I decided to do my first ever cooling paste replacement, and with this particular notebook you have access to the CPU and cooling unit directly from the bottom cover. The replacement was done in 10 minutes. I decided to do the same to my even older (2009) Acer Aspire 5737Z. I had previously tried to open this notebook but for the life of me I couldn't understand how to even get the thing open. After some youtube browsing I found a guide, and after 2 hours of tearing the laptop completely apart I got to the motherboard, flipped it around and saw the cooling unit. 5 minutes later the paste is replaced and I start putting everything back together. Then right before attaching the keyboard I saw a connector with no cables going into it, and I was sure I had forgotten something. Ripped it apart again, got none the wiser, then downloaded a service manual. This particular connector is for a peripheral I don't have on this computer (fingerprint scanner). Put everything back together, boot up, no errors, everything runs smoothly. But what I found while inspecting the motherboard was that the graphics unit is visibly there, and I thought that it shouldn't be that impossible to actually replace it (on my 771g). This leads to me searching around and finding out that it is soldered on (and most people still considered it impossible to upgrade for this reason). Until I found a post from this forum that somebody indeed has succeeded in the thing 99% of the internet considers an impossiblity. After reading through that post a few times and having exchanged PMs with Khenglish (who have been very helpful), I found out that I in fact can upgrade my notebooks GPU to as high as Geforce GTX 960m. So that's my backstory as to why I'm here. I have bought a solder station and preheater for this purpose, along with a lot of equipment like thermocoupler, polyimide tape, a bottle of >99% iso-propanol, flux, solder braid, GPU cores and some more. I have spent quite a lot of money, but all of this comes down to a total of 1/4 of the price of a notebook with 960m where I live. When I have received everything I need to do this upgrade, I will make post on this forum detailing the entire process. I still have a few things to work out regarding vBIOS. Hopefully I will be successful in my attempt.

Hello, I have an Acer Aspire V3-771G-736b1275Maii with i7 3630QM, 12GB RAM and GT650m from factory. I have upgraded my HDD to a 480GB SSD. Do you think your setup would work on my computer? EDIT: Forgot to mention I'm on Windows 8.1 if that matters.