Monday, March 8th 2021

NVIDIA GeForce RTX 3070 Memory-Modded with 16GB

PC enthusiast and overclocker VIK-on pulled off a daring memory chip mod on his Palit GeForce RTX 3070 GamingPro OC graphics card, swapping its 8 GB of 14 Gbps GDDR6 memory with 16 GB of it, using eight replacement 16 Gbit chips. The modded card is able to recognize the 16 GB of memory, is able to utilize it like other 16 GB graphics cards (such as the Radeon RX 6800), and is fairly stable with benchmarks and stress tests, although not initially stable. It did spring up some black-screens. VIK-on later discovered that locking the clock-speeds using EVGA Precision-X stabilizes the card, so it performs as expected.

The mod involves a physical replacement of the card's stock 8 Gbit memory chips with 16 Gbit ones; and shorting certain straps on the PCB that let it recognize the desired memory chip brand and density. After the mod, the GeForce driver and GPU-Z are able to read 16 GB of video memory, and the card is able to handle stress tests such as FurMark. The card was initially underperforming in 3DMark, putting out a TimeSpy score of just 8356 points; but following the clock-speed lock fix, is able to score around 13000 points. The video presentation can be watched from the source link below. Kudos to VIK-on!
Sources: VideoCardz, VIK-on (YouTube)
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41 Comments on NVIDIA GeForce RTX 3070 Memory-Modded with 16GB

#26
DeathtoGnomes
FreedomEclipse780 Ti did have a 6GB model. No modification needed

As for the 3070 modification. This may have come about as 14 and 16GB cards were originally planned by Nvidia before they changed their mind and killed them off. Thus the code still exists for those variants in the bios
I thought his 2070 project was on a whim, but the existing variants might have gave him that extra nudge-nudge.
Posted on Reply
#27
AsRock
TPU addict
Chloe PriceEven googling "zotac 780 ti 6gb" doesn't result to any reviews or anything. Might as well be a typo on that product page as it simply wasn't a released card. Maybe a prototype/ES exists, dunno. A non-Ti 6GB variant though does exists, wonder could it be modified using a Ti chip..
Try not using crappy google maybe ? www.zotac.com/us/product/graphics_card/gtx-780-ti-amp

Maybe it wasn't, you know that for sure as they still have it listed on their site, how ever i only see a box of a 3GB but the specs say 6GB.
Posted on Reply
#28
Ruru
S.T.A.R.S.
AsRockTry not using crappy google maybe ? www.zotac.com/us/product/graphics_card/gtx-780-ti-amp

Maybe it wasn't, you know that for sure as they still have it listed on their site, how ever i only see a box of a 3GB but the specs say 6GB.
That's what I said in my post as it may be a typo or a placeholder. Nevertheless, a 780 Ti 6GB was never released (at least to the public).
Posted on Reply
#29
Gmr_Chick
qubitThat's hardcore enthusiast. :cool: Someone's not afraid to take risks of destroying his card. I wonder how he figured out what straps to modify.
I can bet you anything the only reason the guy isn't afraid of taking such risks with his card is because he's got $$$. He probably doesn't have to fret over the risk of screwing up his GPU when he can just as easily acquire a new one.
Posted on Reply
#30
F-man4
3070 appeared
> Miners bought them all
> VRAM damaged by mining
> Change them to 16GB
> Continue mining
Posted on Reply
#32
Blaylock
Looking at his Phoenix Miner window, his hashrate is lower than my 3070. Not sure why but the extra ram isn't helping with that. With the 2070 he did he actually got worse benchmarks. Probably needs a hefty BIOS mod.
Posted on Reply
#33
moproblems99
Props to this guy.

And more things like this please!
Posted on Reply
#34
hat
Enthusiast
BlaylockLooking at his Phoenix Miner window, his hashrate is lower than my 3070. Not sure why but the extra ram isn't helping with that. With the 2070 he did he actually got worse benchmarks. Probably needs a hefty BIOS mod.
As long as you have enough vram to run it, more ram won't help. Faster ram, however, will...
Posted on Reply
#35
Blaylock
hatAs long as you have enough vram to run it, more ram won't help. Faster ram, however, will...
Yep. Just need enough ram to cover the minimum DAG.
Posted on Reply
#36
_UV_
This guy neither enthusiast nor overclocker, he is repair service man.
Posted on Reply
#37
Solid State Soul ( SSS )
people modding NVIDIA cards with more Vram tells you that they are not satisfied with the amount of vram on there 3000 series cards aside from the 3090 and 3060
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#38
cst1992
Solid State Soul ( SSS )people modding NVIDIA cards with more Vram tells you that they are not satisfied with the amount of vram on there 3000 series cards aside from the 3090 and 3060
Nope, it's an experiment.
Otherwise, why upgrade memory of 2070?
Posted on Reply
#39
qubit
Overclocked quantum bit
Gmr_ChickI can bet you anything the only reason the guy isn't afraid of taking such risks with his card is because he's got $$$. He probably doesn't have to fret over the risk of screwing up his GPU when he can just as easily acquire a new one.
Could be. Only problem right now is that these cards are hard to find.
Posted on Reply
#40
Jism
Durvelle27Now this is my type of techy. Man that is really interesting and scary at the same time.

It makes you think of what could have been possible
It's done since the very early days, buying EDO ram that had a PCB with double-sided but only adressed one single side. Few modders managed to double the capacity by adding chips to the other side. Or a 3DFX voodoo II 8MB that was upgraded to 12MB.

You cant just slap extra memory on that, you have to have controller and bios support. Otherwise it won't work. I wonder tho if you could replace the existing modules with even faster ones.

As long as they are within specs and brand, why not.
Posted on Reply
#41
MrMeth
Chloe PriceEven googling "zotac 780 ti 6gb" doesn't result to any reviews or anything. Might as well be a typo on that product page as it simply wasn't a released card. Maybe a prototype/ES exists, dunno. A non-Ti 6GB variant though does exists, wonder could it be modified using a Ti chip..
There was never any Gtx 780 Ti 6 gig card , there was in fact a Gtx 780 6 gig card i should know because I have one in my spare pc right now. Purchased in 2014. The the cards were offered when the R9 290 came out with 4 gigs of ram to one up Amd. I wanted to go Amd at the time and was debating between the 2 but sided with Nvidia because I was studying 3d modeling at the time and everything used cuda.
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