[Reddit] RX 480 fails PCI-E specification - Page 70 - Overclock.net - An Overclocking Community

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[Reddit] RX 480 fails PCI-E specification

 
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post #691 of 1129 (permalink) Old 07-02-2016, 11:32 PM
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It seems you never read TH reviews before ... They all present this spikes and they're not represnetative because all others reviewers don't show them.
You use this graph because that's the only thing you can do and do not want to admit that AMD have done a big mistake.
960 is doing really well regarding PCIe specs unlike RX 480.

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post #692 of 1129 (permalink) Old 07-02-2016, 11:37 PM
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Quote:
Originally Posted by Dargonplay View Post

Oh, you mean any information that favors Nvidia? Next thing you'll say is that is better to have 300W Spikes over the PCIe X16 slot like with the GTX 960 as long as you have a lower average instead of having a slightly higher average of 79W but with lower 140W spikes.

The average is what is the bad part, pal. The spikes are irrelevant as many guys here told, but you stay ignorant. We provided you with a video of PCPer where they explain this in every detail. Yet you stay ignorant and go on in your story.

To still hit on the ASUS GTX960 STRIX although the story has beeen debunked show me how either uninformed, stubborn or borderline fanboy you are. To explicitly mention Nvidia here gives me a clue. Seems to be a heavy agenda of yours.
Quote:
Originally Posted by Dargonplay View Post

Last time I showed you the 960 Strix graph you went on full misinformation and said it was PCIe PSU consumption instead of what it really was (The MOBO X16 PCIe Slow Power Consumption), people corrected you and you still went on about more misinformation, now I post a 750Ti graph with no PCIe PSU Power Connector and it suddenly turns into a "not scientific measurable knowledge" thumb.gif

Dude, you are hilarious! No 750 Ti was ever out of PCIe-Specification. The average of the power over the 12V-PCIE-lanes is what matters. it has a limit of 66W of the 12V and 7,9W (rounded down) over the 3.3V. The 12V over PCI-SLOT is where the RX480 has its problems. Instead of a maximum of 5.5 Ampere, the card draws 6 to 7.5 at Stock clocks. If you had a slight clue about electronics, you would know how devastating for hardware this is ... or at least can be.

If you had read the sources we provides you, that would have been clear to you. For the last time, here is the whole video explaining everything compressed in 30 minutes.



Quote:
Originally Posted by DaaQ View Post

Never heard of any CPU ever exploding but ok.
Tell me did you plan on buying one of these cards? or are you just White Knighting for all the plebs who have cheap motherboards/pre-builts that don't visit enthusiast forums?

Actually yes, I wanted to buy one. I already had one in my cart, but stopped because reference is always worse than AIB. Even if I know don't buy any RX480, I could still be effected. Yes, even then it will happen. Think about some of the careless persons here stressing their card over a longer time with the RX480 going overboard. The hardware components this guys use might be for sale on the used market some date in the future. What if you bought some of this potential flawed parts and the die really soon after my purchase?

Has anybody even thought about this as a consequence?
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post #693 of 1129 (permalink) Old 07-02-2016, 11:38 PM
 
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Quote:
Originally Posted by Olivon View Post

It seems you never read TH reviews before ... They all present this spikes and they're not represnetative because all others reviewers don't show them.
You use this graph because that's the only thing you can do and do not want to admit that AMD have done a big mistake.
960 is doing really well regarding PCIe specs unlike RX 480.

do you even know what you're talking about? Do you know why TomsHardware presents these spikes? No you don't, you're being ignorant instead of educating yourself, PCPer just uploaded a video explaining why TomsHardware reviews show these spikes, it is because their method is technically more precise, because of the timings when these spikes happen is usually between the end and beginning of each cycle while other reviewers WITH DIFFERENT tools measure the same thing in a way that doesn't show these spikes because of filtered graphs, but the spikes are still there.

The only thing you can do is be in the dark, the real question is whats worse? Having higher average but lower spikes or higher spikes but lower averages?
Quote:
Originally Posted by Hardware Hoshi View Post


Dude, you are hilarious! No 750 Ti was ever out of PCIe-Specification. The average of the power over the 12V-PCIE-lanes is what matters. it has a limit of 66W of the 12V and 7,9W (rounded down) over the 3.3V. The 12V over PCI-SLOT is where the RX480 has its problems. Instead of a maximum of 5.5 Ampere, the card draws 6 to 7.5 at Stock clocks. If you had a slight clue about electronics, you would know how devastating for hardware this is ... or at least can be.

Yes, the average is still within the specifications but the spikes are still above anything the RX 480 is even capable of, this goes back to my previous question "whats worse? Having higher average but lower spikes or higher spikes but lower averages?"

Because you can have 200W spikes while lowering the consumption for nanoseconds to 1W just so you can be "within PCIe Slot spec" like the GTX 960 Strix or stock 750Ti does, that doesn't mean it is any less harmful for your hardware.
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post #694 of 1129 (permalink) Old 07-02-2016, 11:38 PM
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Okey guys.

Looks like XFX 4GB RX 480 consumes (peaks at) only 125W!
https://www.youtube.com/watch?v=L00yplZVDhQ

So this problem only exist with RX 480 8GB? Since reviews got only 8GB version.
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post #695 of 1129 (permalink) Old 07-02-2016, 11:40 PM
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Quote:
Originally Posted by Dargonplay View Post

I'm not saying it's fine, I'm saying it's ridiculous how out of proportion the RX 480 issue is blowing up considering how much worse the GTX 960 was, also the graph was taken out from.

Are you playing dumb?

The 960 strix is taking under 25W from the motherboard.
Also that 750 TI graph, the average of the card is still 56W. If you actually read the review, they have a break down, showing that despite spikes, the full graph is misleading.


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post #696 of 1129 (permalink) Old 07-02-2016, 11:42 PM
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Originally Posted by Themisseble View Post

Okey guys.

Looks like XFX 4GB RX 480 consumes (peaks at) only 125W!
https://www.youtube.com/watch?v=L00yplZVDhQ

So this problem only exist with RX 480 8GB? Since reviews got only 8GB version.

Since according to AMD the issue is blamed on memory, the 4GB version at lower clocks should take less power because it has less chips and lower memory clocks.


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post #697 of 1129 (permalink) Old 07-02-2016, 11:42 PM
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Quote:
Originally Posted by Themisseble View Post

Okey guys.

Looks like XFX 4GB RX 480 consumes (peaks at) only 125W!
https://www.youtube.com/watch?v=L00yplZVDhQ

So this problem only exist with RX 480 8GB? Since reviews got only 8GB version.

Yeah, just the GPU itself. Take the conversion losses (~80% efficiency) into account and you'll be right at 150W+.
The GPU should never exceed 110W since that's it's TDP.
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post #698 of 1129 (permalink) Old 07-02-2016, 11:43 PM
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I've been running the 480 at stock volts and undervolt on a 990FX board which all of them have only PCI 2.0 slots, without the 4 pin molexs jumper to the PCI slots, and have yet to run into a problem.

Just because some jackwad who obviously had an old and never maintained build with a crap PSU and OCed his CPU and GPU is not enough to make me go into insane mode.

If someone doesn't know wth they're doing and doesn't maintain their equipment properly is no problem of mine. The 480 didn't fry his board, he fried his board. The recent miner frying his board... it's a miner, running your equipment 24/7 at max for 3 years will degrade your equipment. I've blown boards, GPUs, and CPUs BOINCing 24/7. Again, I am not concerned.

Stop being ridiculous, because that's exactly what all of you are being.



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post #699 of 1129 (permalink) Old 07-02-2016, 11:46 PM
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Originally Posted by The Stilt View Post

Yeah, just the GPU itself. Take the conversion losses (~80% efficiency) into account and you'll be right at 150W+.
The GPU should never exceed 110W since that's it's TDP.

Well GTX 970 has TDP of 145W and it goes way way over!
So basically you are saying that GTX 970 and GTX 1070 should never use over 110W.

RX 480 8GB with downvolts will use less then 120W.

In this case XFX RX 480W peaks at 125W stock.

XFX 480 8GB claims 120W TDP
https://www.techpowerup.com/gpudb/b3684/xfx-rx-480-black-edition
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post #700 of 1129 (permalink) Old 07-02-2016, 11:48 PM
 
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Quote:
Originally Posted by Defoler View Post

Are you playing dumb?

The 960 strix is taking under 25W from the motherboard.

The same video your posted ""And it might have barely went over even the 6 pin just for like... A tiny amount of time there"" when talking about PCIe MOBO Connector, that sounds an awful lot like the RX 480 doesn't it? The only difference is that nvidia is smart to have inverse spikes to lower the average power consumption and have their fanboys contempt.
Quote:
Originally Posted by Defoler View Post


Also that 750 TI graph, the average of the card is still 56W. If you actually read the review, they have a break down, showing that despite spikes, the full graph is misleading.

It's misleading because it shows us the full unfiltered picture instead of the filtered less precise graphs? Gotcha.

Also I find it funny you cherry picked the best case scenario for that test, with a 1 full entire second of testing thumb.gif Just incredible, here's a 170 times larger test time




I just can't avoid to re ask the same question for the third time.

"whats worse? Having higher average but lower spikes or higher spikes but lower averages?"

Because you can have 200W spikes while lowering the consumption for nanoseconds to 1W just so you can be "within PCIe Slot spec" like the GTX 960 Strix or stock 750Ti does, that doesn't mean it is any less harmful for your hardware as people are claiming the RX 480 is.

One thing people is somehow not able to understand is that the average power consumption of those reviews that use filtered graphs are misleadingly lower because the spikes are not taken into account when measuring the average Power Consumption.
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