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RX6800 suddenly stopped working

Hmm, Mining can frys these new cards. Their GDDR 6 RAM can break! My guess is you may have fried the BIOS chip on the card, try and switch the bios, if it has dual bios and that ought to rule that out.
I don't think this is quite accurate. Gaming puts much more stress on a card than mining does. I do both with my card and for mining you put a major down clock on the card. My card runs at 51 degrees, 59 hotspot and 76 VRAM memory junction temps when mining. Those are fairly cool and comfortable temps for a graphics card I would have thought.
 
I don't think this is quite accurate. Gaming puts much more stress on a card than mining does. I do both with my card and for mining you put a major down clock on the card. My card runs at 51 degrees, 59 hotspot and 76 VRAM memory junction temps when mining. Those are fairly cool and comfortable temps for a graphics card I would have thought.


100% Load, 24hrs a day , 7 days a week, with hot temps will fry your card, simple, these cards are not made for mining.Is your card water cooled?


Put a water block on your card and you will void your warranty. Most Miners also overclock their cards to get better faster mining rates.
 
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100% Load, 24hrs a day , 7 days a week, with hot temps will fry your card, simple, these cards are not made for mining.Is your card water cooled?


Put a water block on your card and you will void your warranty. Most Miners also overclock their cards to get better faster mining rates.

I think miners underclock the gpu and undervolt to make sure it generates less heat. They ramp up memory to full tho.
 
100% Load, 24hrs a day , 7 days a week, with hot temps will fry your card, simple, these cards are not made for mining.Is your card water cooled?


Put a water block on your card and you will void your warranty. Most Miners also overclock their cards to get better faster mining rates.
No mine is air cooled. The mining performance is dependent on memory so yes, for maximum performance the memory is usually overclocked but all other clocks are lowered to keep temps down. I agree that running a card flat out all the time couldn't be good for a card but that's not what anyone mining that has done even a little bit of research will be doing. Less voltage, frequency, heat and cost is the primary consideration along with hash power. Most cards mine with a clock frequency of around 1200 Mhz and voltage of 850 Mv. Depending on the card this keeps the temps between 50 and 70 degrees. I wouldn't be mining at all if the card had to be working flat out to do it.
 
I think miners underclock the gpu and undervolt to make sure it generates less heat. They ramp up memory to full tho.
You're right. Although for me the difference between running the memory at stock and max overclock is only 4 points of hash power and 2 degrees of heat on the VRAM junction temperature. I personally don't overclock the memory as I of course, don't want to damage my card or reduce it's life in anyway, I'm a gamer first and foremost.
 
This does not make sense. I'm no expert, but miners usually do not buy a 3 series cards to castrate them, so that they perform like a 2080 or 1080Ti.

To get 75c on VRAM air cooled on a 3080/90 under full load , you would need to really underclock, the card so it would perform worse than a GTX 1080/ 2080 for hash rates.

I know these miners overclock thier cards , and they run it at 100c to 105c, getting high hash rates until they start throttling and then they reduce clocks a little. Most are voiding card warranties and repasting the internals of the card with thermal tape, then overclocking the card with +1500 on the Memory to get higher hash rates.


It's like a race for them, you have a car that can drive at 100mph but when it gets hot and throttles down then you add a cooler and bump up the speed so it now runs at 120mph at the original temp.
 
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This does not make sense. I'm no expert, but miners usually do not buy a 3 series cards to castrate them, so that they perform like a 2080 or 1080Ti.

To get 75c on VRAM air cooled on a 3080/90 under full load , you would need to really underclock, the card so it would perform worse than a GTX 1080/ 2080 for hash rates.

I know these miners overclock thier cards , and they run it at 100c to 105c, getting high hash rates until they start throttling and then they reduce clocks a little. Most are voiding card warranties and repasting the internals of the card with thermal tape, then overclocking the card with +1500 on the Memory to get higher hash rates.


It's like a race for them, you have a car that can drive at 100mph but when it gets hot and throttles down then you add a cooler and bump up the speed so it now runs at 120mph at the original temp.
I don't know either mate. I'm not an expert, just sharing my own experience. I'm using my 6900 XT and those are my settings and temperatures whilst allowing me to achieve max hash rate. I know the Nvidia cards have much more hash power potential so perhaps you need to do as you say to hit those kind of hash rates. I assumed that all cards would behave in a similar way for mining but perhaps Nvidia cards need to be pushed to realise the big hash rates. I have 4 gaming PCs in my home, one for me and each of my 3 kids. They all have AMD cards; my 6900 XT plus a 5700 XT, 590X and a 580X. They all mine close to their full reported potential being underclocked and at temps under 70 degrees.
 
of course he was
Thanks for the advice about laws etc I will try harder on that front. As for the use of the card it was gaming and work based graphical tasks no mining etc but it was overclocked while being undervolted. Ran stable for ages with great temps just turned off one night and came to it next morning and no post.
 
Thanks for the advice about laws etc I will try harder on that front. As for the use of the card it was gaming and work based graphical tasks no mining etc but it was overclocked while being undervolted. Ran stable for ages with great temps just turned off one night and came to it next morning and no post.

So how do you know its the gpu gone bad? It could be the Mobo bios chip, or even the PSU.
 
Lisen. It is easy to get there attention.
Call the place u have to RMA the card, tell them the card is in warranty and they have to take it in. If they refuse. Tell them that u will send them letter before claim.
That should get there attention.
Dont menton them about water cooler, no matter what. They dont need to know that. They bound by law to take the card back, to find a fault and submit it IN WRITING. If it is indeed watter damage then so be it but it is up to them to figure it out.

They cant reject warranty over the phone. they have to take it in. I can assure you Letter before action will solve your problem. Easy to fill up and once it send they are on a timer.
 
I find it staggering how quick people are to side with corporations.

"You 'misused' the item so warranty is void". Would you accept with any other product? Would you accept it if they said "you can only use the card for playing GTA V. You played CoD:MW, warranty void." Yes its a silly example, but its to highlight that these companies don't get to dictate how you use the product. If it fails, it is on THEM to prove you misused it.

Some great advice here. As always when dealing with an RMA, give them as little information as is necessary to get the RMA approved.

OP, where you dealing with the store you purchased from or the manufacture?

As its within the first year, and at most 6 months since purchase I would try deal with the retailer first. Usually they are much quicker to sort an RMA than the manufacture. Not least as they will have a base in the UK for sure. While the OEM might need the card sending further afield.

Good luck! Hope it does not take too long to resolve.
 
I have a similar post to this suffering the same problem, I've seen several written statements on GPU manufacturers websites saying that fitting a cooler doesnt void warranty...but then there's some that do.
Maybe there should be a permanent sub-forum on here saying the following.
GPU WARRANTY WARNING
'Gpu manufacturers that dont warranty water cooled cards'
Then a list of all the manufacturers.

Now i know what i know i will only buy from manuafcturers that do allow warranty on watercooled cards...even if I've got to spend a few hundred more becuase one day i may want to watercool said Card.
I know it would never happen but putting a clear lable saying void warranty if watercooler fitted on the front of the box would be good, More than a few times I've seen this on other products, or put it in the listing when purchasing online.
It's a depressing situation I'm in...New PC only 14 months old and no way to enjoy it until GPU prices come down to afford a 2nd hand RTX2080 or similar.
 
The key part in all this is, do not tell them any information,.
All u have to say card failed, it's in warranty. The end.
Obviously before shipping the card u have to put it in its original state, minus stickers on bolts, they play no part.

And dont be scared, its is up to them to prove how item failed.
 
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