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[Reddit] RX 480 fails PCI-E specification - Page 97  

post #961 of 1129
Quote:
Originally Posted by andydabeast View Post

What has been your longest gaming session? Someone with an Asrock 970 said it blew after 7 hours of straight gaming.

I played doom at 1080p ultra settings for about 5 hours straight Monday night. Don't have the dedication to play past a couple hours anymore.
post #962 of 1129
Quote:
Originally Posted by SwishaMane View Post

There is nothing to contribute to. No damage has been reported, it will affect zero people. Everyone panties in a bunch because AMd has an edge over nVidia, and everyone wants AMD to fail. So lets blow this non-issue out of proportion...

THIS THREAD IS 95 PAGES TOO LONG... Period.

Tired of seeing screen space wasted on the front page for a non-issue...

When my RX480 comes in, I will not be using the "fix" and it will run for 5 years before I upgrade again...

It has had some impact, though not in the board melting way. On some boards it trips the over current protection and shuts the PC down, this fixes that.
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post #963 of 1129
http://www.overclock.net/t/1604477/reddit-rx-480-fails-pci-e-specification/200_100#post_25307335
Quote:
Originally Posted by DaaQ View Post

To answer your question, I wouldn't splice 8 into 6. You still only have the 6 pin leads on the board side of the connection going into the voltage delivery system of the card. What you are talking of doing would only increase the risk of shorting/damaging your card.

On my Corsair AX860 the two extra pins for the 8pin are split from one ground from the PSU. So essentially to make an 8pin PSU cable go into a 6pin connector all I need to to do is combine two grounds into one. I know you said I still only have six pin leads into the card but there are the same number of voltage-carrying pins going into an 8pin connector and that carries twice the wattage?! With just (effectively) one extra ground?!

I am no electrician but this looks fishy.
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post #964 of 1129
Quote:
Originally Posted by KarathKasun View Post

Its faster than bay trail/cherry trail by leaps and bounds. Mine will do YT/HBO/Hulu/Netflix/Amazon Video 1080p@60fps.
That's not amazing at all,i bought a Smart TV wich has a SoC that can do 4K HEVC at 60 Mbps. I think even 20 bucks Android tv boxes can do 1080p 60 fps at this point.
post #965 of 1129
Quote:
Originally Posted by andydabeast View Post

http://www.overclock.net/t/1604477/reddit-rx-480-fails-pci-e-specification/200_100#post_25307335
On my Corsair AX860 the two extra pins for the 8pin are split from one ground from the PSU. So essentially to make an 8pin PSU cable go into a 6pin connector all I need to to do is combine two grounds into one. I know you said I still only have six pin leads into the card but there are the same number of voltage-carrying pins going into an 8pin connector and that carries twice the wattage?! With just (effectively) one extra ground?!

I am no electrician but this looks fishy.

The card wouldn't recognize it as a 8 pin, i guess is what I should have said. As far as increasing chance of messing something up, I meant that as far as wiring into the connector goes. Mistakes happen. If you are making a custom cable end to end. Although the PCIE are pretty simple on modular PS.

The card recognizes 6 or 8 based of the sense/ground connection so the card would not be able to configure itself for the higher powered 8 pin connector. (does that make sense?)
Edited by DaaQ - 7/6/16 at 6:28am
post #966 of 1129
Quote:
Originally Posted by DaaQ View Post

The card wouldn't recognize it as a 8 pin, i guess is what I should have said. As far as increasing chance of messing something up, I meant that as far as wiring into the connector goes. Mistakes happen. If you are making a custom cable end to end. Although the PCIE are pretty simple on modular PS.

The card recognizes 6 or 8 based of the sense/ground connection so the card would not be able to configure itself for the higher powered 8 pin connector. (does that make sense?)

OH, yes that does. Even if I combine ten 8pin connectors all into that 6pin, the gpu still thinks it is a 6pin.

On the flip side though, If the card is drawing power over the spec for 6pin, then would it not still be better to have a more robust 6pin? I guess PSU's are generally overbuilt so the bottleneck for power delivery is the pci-e anyway... Thanks for explaining.
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post #967 of 1129
Quote:
Originally Posted by andydabeast View Post

OH, yes that does. Even if I combine ten 8pin connectors all into that 6pin, the gpu still thinks it is a 6pin.

On the flip side though, If the card is drawing power over the spec for 6pin, then would it not still be better to have a more robust 6pin? I guess PSU's are generally overbuilt so the bottleneck for power delivery is the pci-e anyway... Thanks for explaining.

Well like you said though, a 6+2 is basically a 6pin with the 2 extra connected at the connector end into the 2pin extender with 6 wires running back to the PSU. So really that is just a 6 pin still. (PSUs may/will vary lol) thumb.gif

edit, I can't remember where i seen it but i did see some amperage numbers rated differently depending on the type of pin used. I think looniam linked it awhile back in a different thread ( I may be wrong here) but like a normal pin was x amp then there was a 2nd and 3rd type with increasing amperage. But really I wouldn't worry about it for a less than 300w card. Unless you really like making your own things, ie cables, so that you know you don't have any factory assembled issues or OCD.
Edited by DaaQ - 7/6/16 at 7:01am
post #968 of 1129
Quote:
Originally Posted by DaaQ View Post

Well like you said though, a 6+2 is basically a 6pin with the 2 extra connected at the connector end into the 2pin extender with 6 wires running back to the PSU. So really that is just a 6 pin still. (PSUs may/will vary lol) thumb.gif

edit, I can't remember where i seen it but i did see some amperage numbers rated differently depending on the type of pin used. I think looniam linked it awhile back in a different thread ( I may be wrong here) but like a normal pin was x amp then there was a 2nd and 3rd type with increasing amperage. But really I wouldn't worry about it for a less than 300w card. Unless you really like making your own things, ie cables, so that you know you don't have any factory assembled issues or OCD.

post #969 of 1129
Quote:
Originally Posted by C2H5OH View Post


That is it, thank you +rep
post #970 of 1129
Quote:
Originally Posted by Ajvar View Post

AMD provided a card which consumes over 165W yet called it 150W TDP and called it "consumes way less to about 110W".
nvidia provided 3.5+0.5 GB 970 GPU and not just called it full 4GB BUT also called it full 256bit which is a lie because it is 224+32bit.
Yeah, it's great to have such people in the community. true. But you have to do a vBIOS flash to fix it for good. And it will stress other 3 vrms by unbalaced power draw and 6-pin itself. Grantly latest is really not a big issue... But I don't like AMD's lie that it's the same non-issue about PCI-E overdrawn.
At the end AMD did slight disbalance and even had to give option to lower performance to completely fix it... but what for overclocking???

The RX 480 has a very powerful VRM section, leaps and bounds more capable than the GTX 1080's. The cards can easily shift 10-20% of power towards the top 3 phases with no issues and it will not trip any protections or failsafes. The high side FETs have 40A capability each at 125 degrees C, and there are 6 phases of those. The low side FETs are rated at 66A at 125 degrees C, and 94A at 70 degrees C. Think about that for a minute. Just the top 3 phases on the low side, at core voltages, are still capable of running 235 198 watts through them, when at 125 degrees, on just those 3 phases tied to the power cable. That is already well over the cards TDP. Shifting 10-20% power to them away from the 3 phases tied to the slot is not even going to come close to stressing these VRMs. And that is calculating as if these whole VRM section was running way up at 125 degrees C! Which is well over the throttle temp points on the failsafes. We are not running up that high, and as temp is lower so is the VRMs current (and thus wattage) capability. At realistic running temps, these should have around 225w capability on the 3 phases just from the PCI-E power cable. No way these things will burn up or have any kind of early degradation.
Edited by EniGma1987 - 7/6/16 at 11:05am
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