PDA

View Full Version : Gpu upgrade



kingkaan
10-20-2013, 05:37 AM
Alright folks,

I have a few people telling me i can do a gpu upgrade on my g75jw but when i spoke with asus tech support they said i shouldn't. Now my question is is gpu really soldered to the motherboard? at this point im kind of confused. because mobile cards are expensive around 500 - 700 dollars on ebay. the people who sells those cards also told me they wont work with asus laptops. is there any way to get around this?


When you look at alienware, msi, clevo their system is upgradable. and if only thing we can upgrade is the memory. let's be honest games are demanding in 2 years laptop is going to be garbage. unless you like playing games on low settings. if there is no way to get around this and upgrade it's a shame :/

jmhdj
10-20-2013, 08:57 AM
Alright folks,

I have a few people telling me i can do a gpu upgrade on my g75jw but when i spoke with asus tech support they said i shouldn't. Now my question is is gpu really soldered to the motherboard? at this point im kind of confused. because mobile cards are expensive around 500 - 700 dollars on ebay. the people who sells those cards also told me they wont work with asus laptops. is there any way to get around this?


When you look at alienware, msi, clevo their system is upgradable. and if only thing we can upgrade is the memory. let's be honest games are demanding in 2 years laptop is going to be garbage. unless you like playing games on low settings. if there is no way to get around this and upgrade it's a shame :/

Hi. It is almost impossible to Upgrade g75 series as there is no Place inside chasis for standard mxm3.0b form factor. And plus on top is mxm software compatibility problem as asus has its own way of implementing it in system Board bios. So only thing I can think of is to find latest gpu in mxm 3.0a form factor and try. That be said I am not sure which Cards are there in that form and how they compare to Your card in performance.

kingkaan
10-20-2013, 10:59 AM
thank you for your reply! appreciate it!

jmhdj
10-20-2013, 11:18 AM
You are welcome. On the other hand I have managed to upgrade asus g73sw both with nvidia 770m and 680m. Needed to exchange original gpu heatsink with one from older g73jh model. And made my own vbios to get cards recognised by system. But thats g73sw I know that there is no space inside g75 series for this kind of mods.

Myk SilentShadow
10-20-2013, 11:22 AM
There is no way you can get around it, due to the fact that the VGA cards are not the standard format to what most laptops have. It's not just about space constrictions.

DeltaActual
10-20-2013, 12:37 PM
Forget about it. Just sell your G75 and buy G750. That's what i do every year.

kingkaan
10-20-2013, 05:43 PM
haha yeah i was thinking about buying the one with gtx 780m in it. i hate alienware and msi even tho you can upgrade them. i have the g750jw right now with gtx 765m in it overclocked but it's just not enough.

kingkaan
10-20-2013, 05:45 PM
oh wow. that's interesting man! yeah i don't think i should touch it since it's that complicated id rather sell it. because mobile cards are expensive if i ruin the card and the laptop it will be such a waste. id rather sell it and upgrade it that way i guess. what a shame for asus. :/

Dreamonic
10-20-2013, 06:40 PM
Both G75's and G750's use MXM 3.0b cards/slot.

The only difference between them is the way the vBIOS is implemented and their ROM sizes.

Since the vBIOS in the G75's are part of the system BIOS (88KB) they cannot be dumped using NVFLASH like how the G750's (163KB) can, since their v/BIOS is located on the card; This means more user control over the clocks and voltage. Also, raising the OC limit +135 is the same as done in previous generation cards, as is voltage range/stepping and P-state clock control.

On another note, KBT works on all G750's cards, where with the G75, it cannot. So just raise your clocks this way.


You can use standard MXM 3.0b cards in the G750 given the right chassis/heatsink modifications to fit, as it will run out of the box unlike with the G75's, as further modding is necessary.

There are more differences between the ASUS G750 cards and the MXM standard than just the PCB layout. However, this does not affect using a different card altogether.


I'd recommend just upgrading NB's if this is your first time modding rodeo, as likely things begin to get expensive if going for trial and error.

kingkaan
10-20-2013, 07:14 PM
thank you for your reply! it's full of great information. ok here is my question now i have G750JW with gtx 765m in it so if i were to buy gtx 780m it would work but modding might be necessary?

Dreamonic
10-20-2013, 07:50 PM
The card you currently have is 75W, which is what the heatpipe length, heatsink size and fan size/speed plays a part in that thermal cooling design. So if you were go to a 680M, let alone a 780M which are both 100W cards, you not only will be modifying the heatsinks and chassis in your G750 to accomodate either one, but will also require a 230W+ AC adapter as well. Also heat dissipation within the G750 will not be tweaked for either cards thermal output besides the two 75W cards (765m, 770m.) So in other words, your temps might be higher than average due to this.

Finding a used G750 770M for direct replacement is definitely hard to come by right now, so I can see the excitment for replacing the 765M with something else. You'll need to go with a standard 680M from Clevo if you want to upgrade, not AW or MSI, but modifications are required.

kingkaan
10-20-2013, 08:08 PM
owww :) it sounds like it's a lot of work not that i am lazy but it sounds very risky. but i can get a hold of gtx 680m from clevo on ebay easily. i had an alienware laptop before and i upgraded the gpu on it from 5850m to amd 6990m it was an easy upgrade my temps were very high but it was worth it and it worked i just had to buy a cooler to keep it cool. that's the only experience i have with upgrading. might just have to sell this :/ thank you mate! you've been very helpful.

Dreamonic
10-20-2013, 08:44 PM
It definitely requires a game plan to go about it as most people are adamant on going about this upgrade, but when they do find out what is involved they'd rather spend that good chunk of coin on a complete system upgrade instead, especially when they have no certainty on the chance it will work in the end.

This is why there is little to no information available about it, since there is a lot of reading and disassemble time to make all the necessary measured modifications as well as spending the extra money for another backup chassis, heatsink, etc in case of user error.


Np, now you have an idea what is involved.


Cheers!

iweber95
10-21-2013, 03:30 PM
Why not just buy the JH model? It has larger fans for better cooling, comes with other upgrades: (RAM and HDD) and does not require and work.