Gadgetory

this is our first really interesting 20 atti failure it's not a BSOD on this one we already talked about that the B SATs are largely caused by I mean there's a reason they're multiple monitors here largely caused by monitors of high refresh with g-sync or just sometimes random monitors this one however is an issue because it times by and actually every game every 3d application they're all running really slowly and if you look at the frequency that's because the clock is stuck at 1350 megahertz so we're gonna show you how this particular bug on the 28 et eyes works today before that this video is brought to you by thermal grizzly and their high-end thermal compounds thermal grizzly makes cryo not paste for high thermal performance and conductivity without being electrically conductive so you don't have to worry about shorting components cryo knot is particularly good for replacing stock GPU pastes as cryo knot is a non curing compound learn more at the link in the description below this particular card with the 13 50 megahertz lock it's not ever boosting above 1350 and if we overclock it at all like 10 megahertz it'll instantly exhibit issues and I'll show you that in a moment but the card is an EVGA 20 80 TI XC gaming it's not the ultra it's a 2 slot card it uses the reference PCB that's the common thread between all these so we have a bit of sample bias because we're in the US and most of the people who sent us cards are in the u.s. eg has the dominant vendor here so most the cards are either Nvidia Fe or EVGA but all of them use the reference PCB all the ones we've received that's why we've got a stack of Fe cards we have some EVGA cards some gigabyte cards and we have more coming in but this one is the only one that does this so let me walk you through exactly how this works we think it's almost certainly a V BIOS bug we wanted to film this before validating that because it's no going back once we fix it so here's the issue right now we're running times pi I've got two monitors hooked up just cuz that was a common multi monitor BSOD bug but we're not experiencing that with this one this card is getting away with it so if we go to sensors you'll see GPU ZZZ reporting a 1350 flat clock EVGA precision 1350 flat and the temperature if it can be trusted as shown as sixty degrees on the GPU and we're also fairly confident that the view the memory is doing just fine as well so this is some other issue and if you look at the power target here the slider can't move at all it is immovable and this one can move but the power target can't also the power target always says zero so even if we unlink them it always says zero so you can't go up this is clearly some kind of bugged v bios or almost certainly anyway and the fans there's just more of a precision bug but they seem to be showing zero rpm however we have had issues where this cards fans sometimes weren't spinning up at all because the frequency is so low that it's really not doing enough work to generate any heat as evidenced by the 60-degree temperature and this is after clean install this happened on the customers card as well before I mean it is the customers card on their system before they sent it to us so what I'm going to do is just 25 megahertz offset this frequency should easily be at like 1900 megahertz so we're around 600 megahertz below where we should be on the twenty atti so we're just going to do a twenty five offset and we'll get the camera pan up to the top screen before I hit apply and now I am going to hit apply and let's see what happens so far the other screen is frozen so that's a good course yet we're getting freezing on the bottom okay it's back kind of okay so now it's freezing see that stutter that just happened if we go back down to the bottom screen we've got a spinning Windows icon precision is crashing and we're still seeing 1350 megahertz in both applications GPZ is Allah is not responding either so both those applications have crashed or in the process of crashing and then now we're getting a full system freeze and I try to close that and we get a black screen okay so it didn't stay on the black screen this time like it has in the past but everything is still locked down and frozen so this is just from trying to do a 25 megahertz offset and sometimes it'll actually kind of stick but it stutters a lot so let's show that behavior - okay so it's back open after a reboot we're just gonna do ten megahertz offset on the core now and there it goes so there's there's the example the other behavior where you can see it's just stuttering for like half a minute at a time at this point and it'll eventually draw a frame but it's skipping 99% of them so at this point this is unrecoverable we can't restore to defaults or provide any input we all have to hard reset once again and now it's time to probably flash the V bios and see if that fixes it and here we've gotten I didn't hit the reset button yet so we've gotten just a straight black screen okay restart so one last thing to show you here before the flash this is an XC ultra that passed successfully no issues with that card 65 20 points on that one and then on the card we've been testing and on this card right fifty two hundred points so clearly it's scoring lower as well if you allow it to actually complete that's because the frequency is extremely low so let's flash bios then and see that fixes this update successful okay reboot well then work so it's still stuck at the same issues like the power target is zero we can't increase it afterburner doesn't know what to do with it either so that's not working the clocks should be the same as they were I'll just illustrate that and so we're left with an issue where it's either an in silicon error or it's like the BIOS chip error some kind of hardware level defect is most likely to cause you this is not a driver issue and clearly it's not a V bios issue because we took unknown good one and we flashed it and that should fix it for sure if it's a V BIOS corruption issue or something like that so let's give this one more chance though and see where it boosts to yep 1350 megahertz so it's still broken so this card this is card b1 that's our label and we have labels on all the cards so b1 is an EVGA 28 eti XC gaming it seems to have a V bios defect maybe it's not boosting the clocks over 1350 power target can't be changed the fans act kind of screwy sometimes and the scores are low they match the frequency so this isn't just a reporting bug in software the scores are actually significantly lower which is important to validate because otherwise it can just be a software reporting bug which is not what this is this is some kind of probably hardware level defect and there's nothing at this point I don't know what I can do with it so we're gonna take it apart probably take a look at it see if there's anything really clear and visible and otherwise oh no well look at the next set of cards and start seeing if we can draw some conclusions what's happening to them we have a lot these are Effy's need to look at those four primarily artifacting issues that you all have reported and then we also have another EVGA card we've got a gigabyte card so lots to go through but anyway I guess all this really shows you is that yes this is a real problem it's not just people making stuff up on reddit or something we were able to validate this one we're able to validate the VSO DS and where you see whatever what other kinds of weird errors we can find on the twenty series I guess it seems like there are quite a few though so this is an instance where at this point we if we can't figure out what to do with it in the next few days to fix it probably will recommend to the customer to just RMA it and EJ is good about that they'll definitely take care of the customer but ideally it doesn't happen at all so whose fault that is we're not clear right now it is a reference PCB which is made by Nvidia's team so we'll see we'll see if there's a common thread but thank you for watching if you want to support more content like this as we dig into the rest of the customer cards that were sent to us on loan you get a store documents access net to pick up a shirt like this one or you go to patreon.com/scishow and access subscribe for more I'll see you all next time