PDA

View Full Version : GPU dying? G752VY-RH71



CafeLeLEMONed
07-10-2016, 12:53 PM
I've had my G752VY-RH71 for about 6 months now, just paid it off actually.

I just had it sitting on twitch and when I looked back the screen all of a sudden had a verticle grid like my GPU crashed.
Rainbows lines everywhere...

I restarted, and it's back to normal and saw there was a driver update so did that but now I'm concerned. :(

Anything I can do to be sure? Should still be under warranty... should I just send it in?

Intel® Core™ i7 6700HQ Processor
Windows 10 64-bit
16 GB DDR4 MHz SDRAM
NVIDIA® GeForce® GTX 980M with 4GB GDDR5

JustinThyme
07-10-2016, 02:36 PM
Not uncommon, first thing I would have done was a driver update.

Googlegot
07-11-2016, 01:55 AM
The last driver update nvidia sent out caused my graphics to glitch badly until I rebooted. Smooth sailing since then. This was my gtx965, which has the same core (with cut pipelines) as the 970 and 980. Dont sweat it.

JustinThyme
07-11-2016, 03:52 AM
The last driver update nvidia sent out caused my graphics to glitch badly until I rebooted. Smooth sailing since then. This was my gtx965, which has the same core (with cut pipelines) as the 970 and 980. Dont sweat it.

You might want to either double check your sources or take the salesman outback and beat the snot out of him.

http://gpuboss.com/gpus/GeForce-GTX-980M-vs-GeForce-GTX-965M


http://pc4u.org/nvidia-geforce-gtx-980m-vs-970m-vs-965m-vs-960m-vs-860m-specs-and-benchmark-comparison/

They both are built on the GM 204 chip and they both have 5000Mhz memory speed but thats where the similarities end.

I have a G751JL and a G751VY and a G752VY, The 980 stomps a serious mud hole in the arse of the 965 in any benchmarks. Ill go run firestrike on both and post back.typically the 980 nearly doubles the score of the 965.

Edit, just upadted the 3dmarks software on G751JL. No OC all stock standard settings and Vbios etc,

http://www.3dmark.com/3dm/13109428

Be back in a few with the G752VY.........

G752VY default settings, no OC or tweaks.

http://www.3dmark.com/3dm/13109674

Dreamonic
07-11-2016, 06:03 AM
One thing it could be from my experience is that the 'ASIC' voltage (variety in GPU binning) can be so close to being unstable while still being in the 'passable' range for sale to vendors. This also has to do with a combination of vdroop as well in that specific circumstance. When voltage has to peak or drop according to reliability voltage at load, while also keeping clean signal through VRM. I've found it to be 1 of 2 things. The first one being that the GPU core clock needs an additional +12.5 ~ 25mV over base voltage (as opposed to underclocking core) to stabilize it over factory values through FW (modified VBIOS to correct it). The second one being the memory (VRAM) ICs which bin vary by each manufacturer as well; Voltage ranging from 1.3v ~ 1.5v depending on the architecture and model of GPU they are used on (field passable), as some bins can barely overclock (Elpida/Micron) and may barely stay stable stock while some can really overclock (Hynix/Samsung). It also can be the other way around too where the highest bin of the lower tier is similar to the higher tier of the lowest bin. Fairly hard to cherry pick in gaming notebooks because most "cookie cutter" manufacturers aren't using sockets/slots for CPUs and GPUs anymore, so you may get a good binned CPU or GPU (unlikely to be both) and you potential lose a good one trying to go for both instead in the next exchange/return, which you might not even get any better with at all. The constant exchanges/returns to get golden CPUs and GPUs (store policy would prevent further exchanges/returns for instance due to exceeding max allowable per customer) while some people just get lucky right off the bat and never go through that situation, but it does indeed exist, especially with overclockers.

I have found that the lower SKUs (keyword SKU not just model) run the Elpida/Micron manufacturer memory and have a higher (ASIC) VCORE GPU over the SKUs above it in the same model range (run hotter and are more susceptible to being unstable and problematic with time). It's not all black and white though as this is just from personal experience through years of doing modifications. It's not greener on the other side either!

If you keep experiencing these artifacts while still stock and have troubleshooted drivers (which drivers definitely can do this), then things above to think about.

Just some food for thought.

Apoapsis
07-11-2016, 10:06 PM
So, what you're saying is that either the ASIC voltage isn't high enough to keep the GPU stable, as what the manufacturer suggests may not be enough, or that manufacturers choose from a variety of similar VRAM but some of which are finicky about their voltages but aren't addressed about it?

It's kinda hard for the layman to understand, so please clarify if I've got that wrong.

Googlegot
07-12-2016, 01:09 AM
You might want to either double check your sources or take the salesman outback and beat the snot out of him.

http://gpuboss.com/gpus/GeForce-GTX-980M-vs-GeForce-GTX-965M


http://pc4u.org/nvidia-geforce-gtx-980m-vs-970m-vs-965m-vs-960m-vs-860m-specs-and-benchmark-comparison/

They both are built on the GM 204 chip and they both have 5000Mhz memory speed but thats where the similarities end.

I have a G751JL and a G751VY and a G752VY, The 980 stomps a serious mud hole in the arse of the 965 in any benchmarks. Ill go run firestrike on both and post back.typically the 980 nearly doubles the score of the 965.

Edit, just upadted the 3dmarks software on G751JL. No OC all stock standard settings and Vbios etc,

http://www.3dmark.com/3dm/13109428

Be back in a few with the G752VY.........

G752VY default settings, no OC or tweaks.

http://www.3dmark.com/3dm/13109674


I wasn't saying the 965m is the same as the 970 and 980. I am fully aware of the differences. I was saying it's the same core. It is cut from the same silicon, but was binned lower and had some pipelines laser cut to reduce performance but increase yield.

What I AM saying is since they are the same core, minus a few shader pipelines, the drivers will work generally the same way, and as such, his one single graphics glitch he had during installation of his drivers also happened to me.

Unless the issue continues to happen, of course, then it's a different ball game.

JustinThyme
07-13-2016, 01:48 AM
And what I was saying is there are many more differences than a cut pipeline. The same GM 204 and memory speed is all they have in common. Pipepine, shaders, memory bandwidth, core speed, Vram, floating point performance, texture rate, Double output render processors, texture mapping units and the fact that the memory interface in a 980 is double that of the 965. Reading your statement what I got from it is they are the same with just a few less pipelines which isn't remotely close to accurate.