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View Full Version : g75vw upgrades in general



xXEMO_POTATOXx
06-24-2014, 05:52 PM
OK guys I have a heavilly modded g75vw. I have the intel ac7260 in my computer 16 GB of ram, better cooling CPU side provided by xoticpc, dimand thermal compound, and I put another 750gb hard drive that originally came in the g75vw. so that a side let's talk about what I want to do.
I want a newer video card and I see the g750js comes with a 870m I have the 670m that was originally in the g75vw. could I put one of the 870m's in there or is the slots different I figured it would be the same because of they are both rog, Asus ,computers. has anyone tryed?

xXEMO_POTATOXx
06-24-2014, 07:08 PM
I have done more research and it looks promising here is a pic of g75vw motherboard out of the computer
38094
and here is the g750 765m only one I can find to buy so far
38095
if you look at it right they both look very very similar

Gumwars
06-25-2014, 12:29 AM
You'll need a custom vBIOS, if it fits. I don't know if the connector is the same or if the voltage requirements match. You're probably better off getting an SSD or a new laptop rather than gutting your rig and going off into the land of pure experiments.

xXEMO_POTATOXx
06-25-2014, 03:21 AM
gumwars I see what ur saying but I have already got stuff in my g75vw that most people don't have a Intel ac7260 witch works great I might add and you wouldn't need new bios you just need new drivers. the bios don't run on the graphics card anyway cause when I would over clock my graphics too high it would crash the nvidia drivers and the computer would go to the Intel graphics. so you just would need the latest nvidia drivers.

xXEMO_POTATOXx
06-25-2014, 03:33 AM
I'm comparing pictures the video card is laying out at the top and the other pic is the one above
38104
38105

Gumwars
06-25-2014, 07:06 AM
Dude, I'm telling you that the vBIOS will need to be modified in order to make this work. The wattage needed to push the 670MX is lower than the 780, by a lot. You'll undervolt the board if you don't look at changing the power throughput. My G75 is through Xotic too, and I got lots of bells and whistles with it but trust me when I tell you this; upgrading the video card in this laptop isn't worth the trouble. You'll need to modify the chassis, you'll spend nearly $1000 on the MXM card alone, your cooling won't be up to par, you'll need a custom vBIOS for certain (75w vs. 100w), you might even need a special PSU (like 200w or higher) and in the end, if it works, you'll have at best something with questionable reliability and stability issues.

It's your time and money but you are going down a road others have tried and I have not seen one that came back with a working laptop. For the same money you can set up a dual mSATA raid 0 in a single HDD caddy or something else that will give you plenty of performance without the headache of hexadecimal editors and nvflash.

You said that when you overclocked your card it crashed (it's not the drivers, BTW). That's likely due to the card undervolting because the increased clock increased the power demand. The 180w PSU that comes with our laptops is right up against the minimum needed to run everything when it under full load. You're hitting a power bottleneck when you overclock past a certain point, a custom vBIOS is the only way around that. Not BIOS, vBIOS. It's the firmware on the video card itself that you'll need to change, not the motherboard BIOS. Another thing is that the Intel HD graphics is disabled on the G75. That's why we don't have Optimus. The GTX 660, 670, and 670MX for our laptops don't have the pass through for the processor to work as a GPU. It's physically impossible for your processor to work as a video card with these laptops. What you're seeing is your card getting unstable under heavy overclock, crashing and then recovering (because its built to do that).

Another note is that swapping in a new wireless network card, that works perfectly fine with these laptops (I don't have an Atheros either, I went with an Intel card too) is nothing compared to this kind of undertaking.

I can't stress this enough - don't do it bro!

xXEMO_POTATOXx
06-25-2014, 03:29 PM
OK but I have the 670m not the MX I could go to the MX and be better then the 765m and update bios to g75vx cooling the same and card screw pattern is the same. and BTW all g75, g55, g750 have the same power supply motherboard might be different and a processor and video card but the power is all the same so don't look like you would have to upgrade power.

Gumwars
06-25-2014, 04:22 PM
Read this:

http://www.overclock.net/t/1370714/gtx-670mx-overclocking-updated-custom-bios-file

Good luck!