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Why is AMD quiet about black screens on 290x?

mmj_uk said:
I agree, but what I am saying is that the 'stock' for a 290X is quiet mode where the card is free to throttle as much as it deems fit, 'uber mode' is an enthusiast mode where nothing is guaranteed.

"up to 1000mhz" which is what AMD are selling these cards as simply means that they won't go any higher than 1000mhz, there is no mention from AMD of a 'stock speed' or 'base clock' because they don't have one.

It's **** I know, that's what I've been saying since release.

With all that said though, unless people try actually underclocking cards to see if it fixes the crash it's all just speculation... but Euda claimed earlier that doing so fixed his black screen problem so that's my theory.
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Isn't the difference between stock and uber just the fan speed limit? I got the same clocks and temps, more or less, with both as my case airflow is decent.
I think stock can be considered either mode, just no over clock applied.
 
Euda said:
Yep. But the problem got _much_ worse after installing the Accelero even though temperatures are much lower, constantly than they used to be with the Ref.-blower. ;)
So I primarily think it's something as a sensor-bug. Whatever.
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but it makes sense that cooler GPU = higher clock right? if the Accelero has the GPU running at 1000mhz whereas the stock cooler only 900mhz... that's 100mhz difference in clock speed which could be to blame.
 
mmj_uk said:
but it makes sense that cooler GPU = higher clock right? if the Accelero has the GPU running at 1000mhz whereas the stock cooler only 900mhz... that's 100mhz difference in clock speed which could be to blame.
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The card should be able to run at 1000mhz without black screening and hard locking the system. This is not debatable.

Also the card will run happily at 1000mhz on air if you don't have stupid airflow. it's just you get the (stock) fan sitting at at 45% ish.

The cause may be the variable voltage, but no one is doing something with the card that they shouldn't be able to do.
 
nickrorschach said:
Isn't the difference between stock and uber just the fan speed limit? I got the same clocks and temps, more or less, with both as my case airflow is decent.
I think stock can be considered either mode, just no over clock applied.
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That's what people assumed but at no point do AMD advertise 290X as 1000mhz stock...

nickrorschach said:
I think stock can be considered either mode, just no over clock applied.
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What does 'no overclock applied' mean when AMD don't give a stock clockspeed? Uber mode allows you full use of the fan but just because it can run 1000mhz with the lower temperature doesn't necessarily mean that the VRM's are up to it? under normal circumstances (quiet mode) the card would likely have throttled.
 
nickrorschach said:
The card should be able to run at 1000mhz without black screening and hard locking the system. This is not debatable.

Also the card will run happily at 1000mhz on air if you don't have stupid airflow. it's just you get the (stock) fan sitting at at 45% ish.

The cause may be the variable voltage, but no one is doing something with the card that they shouldn't be able to do.
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If people affected just try running their cards at a lower clock speed (900mhz?) then they can put this to bed by the outcome, the fact is AMD do not advertise 290X as 1000mhz 'stock' they simply say that 1000mhz is the upper limit. It sounds similar to 'Turbo' on CPU's where under lighter loads/less cores in use they give more frequency.
 
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My VRM 1 at 900Mhz hits around 83C whereas in stock 1000MHz it can hit up to 96C on a long session of BF4. VRM 2 maxes at around 73C in both cases. I have installed the Gelid Icy Rev.2 cooler on my card, though. Should I try refitting the vrm heatsinks? I have read that vrm's can hit up to 120C, so should it be normal to hit those temps, right?
 
Gregster said:
It doesn't make sense to be driver related, as some only get it on overclock (the majority that I have seen) and the minority are getting it at stock.

Can someone underclock the clocks (someone who gets it at stock) to a point they can lower the core voltage and failing that showing a fix, doing the same with the memory please.
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Gregster l have had this Black Screen fault at stock have never OC's the card, even under clocking the GPU to 900 and RAM to 1125 still causes the Black Screen fault.
 
CEUOTC said:
Sapphire Card so Core Voltage locked and not willing to flash the Asus Bios isn't ase l have to RMA the card.
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Fair play and I understand that but I am willing to bet that lower volts will cure the problem. It isn't the answer but it will point at volts or power being the cause.

Hopefully someone will try it.
 
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