Overclock.net › Forums › Industry News › Hardware News › [Reddit] RX 480 fails PCI-E specification
New Posts  All Forums:Forum Nav:

[Reddit] RX 480 fails PCI-E specification - Page 87  

post #861 of 1129
Here is an interesting discussion from reddit.
https://www.reddit.com/r/Amd/comments/4rbw8p/facts_about_pcie_connectors/
Quote:
I'll try to dispel some myths generated by the RX 480 power draw controversy. Warning: Spoiler! (Click to show)
I am an electrical engineer and read spec sheets and design components on a day to day basis. Here is the product page of a PCIe connector manufacturer. There we can find a qualification report. Within are diagrams concerning ampacity (the current carrying capability of electrical conductors).

Connector Setup

Temperature Rise

3.3V Curve

12V Curve

Those test show what the max. ampacity of one contact over a ambient temperature curve. So another thing we need to look at is what kind of temperature those contacts are exposed to. Intel requires that cases are designed so that ambient inlet temperatures do not exceed 45°C. I can't really imagine a scenario where one has such an awful setup with such bad airflow that the case temp is above 50°C. But Lets do some calculations. Here is a table so you know what kind of temps we are talking about.

Safe max continuous power draw from a PCIe connector at not realistic scenario with 65°C ambient temperature

3.3V*4contacts*6.1A= 80W

12V*5contacts*4.5A = 270W
Total 350W

Safe max continuous power draw PCIe connector at a realistic worst case scenario with 50°C ambient temperature

3.3V*4contacts*7A= 92W

12V*5contacts*6.4A = 384W
Total 476W

Of note is that these values are with a derated 20% safety margin. Plus the way they tested it was at a stupid high temperature with 6 contacts adjacent i.e. worst case and not how the PCIe connectors are actually setup. (max of 3 contacts adjacent) If we disregard the safety margin, temp and the unrealistic setup of adjacent pins we could probably pull almost 800W - 900W from a PCIe connector without burning out any contact.

I don't have access to the PCIe 3.0 electrical specs so I can't say anything on that side except those are probably whit a ton of safety margins. My personal opinions as someone who does this professionally on a day to day basis is that interfaces are designed for a reason and should be adhered to. But the amount of overdraw worries me not one bit because we go over spec all the time to make things work. If we would design things with such a small safety margin basically everything would break down immediately all the time. As a matter of fact I wonder why it is brought up at all?! IMHO this whole situation is laughable and I would not be surprised if AMD engineers would have been completely been caught of guard as this is not even remotely an issue to them. What they are doing with the driver is satisfying politics not physical necessities. (As we so often do *sigh...)

I also don't like the test done by laymen such as pcper for example. They have an air of seriousness to them but for somebody in the know it's kind of like watching an Adam Sandler movie (that Malventano guy... dear lord). Also you can't just draw a line, on a sampled current measurement, guesstimate where the median is and announce that this is the average power draw. What you'd need is a program that must obtain the average by integration. Placing some random cables and connectors between them and using an oscilloscope for power measurement has it's own issues. All in all very unprofessional. Pure cringe material. They should have asked an electrical engineer specialized in equipment testing and another one in in circuit/component design to come on to the show.

TL;DR: There is now way to break a PCIe connector with an RX 480.

EDIT: Highlighting some stuff.


Edit:
Added links
Added spoiler - not to take the whole page
Edited by C2H5OH - 7/5/16 at 7:39am
post #862 of 1129
Quote:
Originally Posted by The Stilt View Post

The fix I have been talking about was tested by w1zzard (TPU). It lowered the power draw from the bus by 10W, on a card which consumed around 162W of power in total. I have no exact details how AMD themselves were thinking to address the issue, however I'm pretty sure that we were working on two completely different fixes. If the fix by AMD manages to reduce the power draw of the card, these two fixes combined together might end up being quite effective indeed. Anyway with the fix I came up with, the power draw from the PCI-E slot will drop below the specifications on stock cards.

+rep for aiding community as always thumb.gif .

I was hoping your fix would be more than 10W drop headscratch.gif. At the moment I'm thinking even with AMD fix plus yours it will not mean the card on average pulls as low a draw when under load as past AMD cards like Hawaii/Fiji on PCI-E slot. I would assume this 10W would soon be used up if OC'ing card?

Truly gutted, originally was looking forward to a ref PCB RX 480 purchase for tinkering and now not.

Do you reckon AMD will revise ref PCB in future?
Edited by gupsterg - 7/5/16 at 8:19am
The Stilt Machine
(14 items)
 
XPS - i5 4690K
(12 items)
 
XPS - Q6600
(8 items)
 
CPUMotherboardGraphicsRAM
Ryzen 7 1700 Asus Crosshair VI Hero Sapphire Fury X@1145/545 G.Skill Trident Z 2x 8GB 3200MHz C14 
Hard DriveCoolingCoolingCooling
Samsung Evo 840 ThermalRight Archon IB-E X2 + 2x TY143 ThermalRight TY-143 2x front case intake Arctic Cooling F12 + 2x F9 as rear case exhaust 
OSMonitorKeyboardPower
Win 7 Pro x64 / Win 10 Pro x64 Asus MG279Q Cherry MX-Board 3.0 Cooler Master V850 
CaseMouse
SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
i5 4690K@4.9GHz 1.255V Asus Maximus VII Ranger Sapphire Fury X@1145/545 HyperX Savage 2x8GB 2400MHz C11 
Hard DriveCoolingOSMonitor
Samsung Evo 840 TR Archon SB-E X2 Win 7 Pro x64 / Win 10 x64 Asus MG279Q 
KeyboardPowerCaseMouse
Cherry MX-Board 3.0 Cooler Master V850 SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
Intel Q6600 G0 Asus P5K Premium Black Pearl Sapphire Toxic HD5850 Corsair Dominator 4GB 
Hard DriveCoolingOSPower
Crucial MX 100 256GB TR TRUE Rev.A Win 7 Pro x64 Cooler Master V650 
  hide details  
The Stilt Machine
(14 items)
 
XPS - i5 4690K
(12 items)
 
XPS - Q6600
(8 items)
 
CPUMotherboardGraphicsRAM
Ryzen 7 1700 Asus Crosshair VI Hero Sapphire Fury X@1145/545 G.Skill Trident Z 2x 8GB 3200MHz C14 
Hard DriveCoolingCoolingCooling
Samsung Evo 840 ThermalRight Archon IB-E X2 + 2x TY143 ThermalRight TY-143 2x front case intake Arctic Cooling F12 + 2x F9 as rear case exhaust 
OSMonitorKeyboardPower
Win 7 Pro x64 / Win 10 Pro x64 Asus MG279Q Cherry MX-Board 3.0 Cooler Master V850 
CaseMouse
SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
i5 4690K@4.9GHz 1.255V Asus Maximus VII Ranger Sapphire Fury X@1145/545 HyperX Savage 2x8GB 2400MHz C11 
Hard DriveCoolingOSMonitor
Samsung Evo 840 TR Archon SB-E X2 Win 7 Pro x64 / Win 10 x64 Asus MG279Q 
KeyboardPowerCaseMouse
Cherry MX-Board 3.0 Cooler Master V850 SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
Intel Q6600 G0 Asus P5K Premium Black Pearl Sapphire Toxic HD5850 Corsair Dominator 4GB 
Hard DriveCoolingOSPower
Crucial MX 100 256GB TR TRUE Rev.A Win 7 Pro x64 Cooler Master V650 
  hide details  
post #863 of 1129
Quote:
Originally Posted by gupsterg View Post

+rep for aiding community as always thumb.gif .

I was hoping your fix would be more than 10W drop headscratch.gif. At the moment I'm thinking even with AMD fix plus yours it will not mean the card on average pulls as low a draw when under load as past AMD cards like Hawaii/Fiji. Truly gutted, originally was looking forward to a ref PCB RX 480 purchase for tinkering and now not.

Do you reckon AMD will revise ref PCB in future?

They could have designed the reference card in a way that more of the power would have been drawn from the PCI-E power connector. Now they've gone with 50/50 distribution which means that at 150W TBP the PCI-E specifications will be maxed out at stock. When exceeding 150W (like most RX 480s do) you will violate either of the specifications regardless. The only question is if it is smarter to violate the specifications of the PCI-E power connector, which in reality can even in the worst case (2/3 connected, 8A low grade contacts) deliver 192W safely or the specifications of the PCI-E slot which actually might not withstand anything higher than it's rated power (either due using multiple cards or just due extremely poor design).

If AMD would have included a 8-pin connector, they could have drawn all of the GPU power from the PCI-E power connector and still stay within the spec. With 6-pin power connector they've could done exactly the same thing, however not without violating the spec. Violating the spec in case of the PCI-E power connector is perfectly safe in this case thou.

If using 6-pin power connector (for marketing reasons, which was most likely the case) was absolutely mandatory, personally I would have designed the card so that 4/6 of the GPU phases and the other power planes (VDDCI, VDDM) would been fed from the PCI-E power connector and the remaining two from the PCI-E slot.
post #864 of 1129
+rep thumb.gif .

When I read your posts with such information I think :-

a) you are truly a remarkable person in my books smile.gif .
b) why the heck don't AMD use a person like yourself for input?
c) are there other people as such as yourself which they don't use to their and our benefit?
The Stilt Machine
(14 items)
 
XPS - i5 4690K
(12 items)
 
XPS - Q6600
(8 items)
 
CPUMotherboardGraphicsRAM
Ryzen 7 1700 Asus Crosshair VI Hero Sapphire Fury X@1145/545 G.Skill Trident Z 2x 8GB 3200MHz C14 
Hard DriveCoolingCoolingCooling
Samsung Evo 840 ThermalRight Archon IB-E X2 + 2x TY143 ThermalRight TY-143 2x front case intake Arctic Cooling F12 + 2x F9 as rear case exhaust 
OSMonitorKeyboardPower
Win 7 Pro x64 / Win 10 Pro x64 Asus MG279Q Cherry MX-Board 3.0 Cooler Master V850 
CaseMouse
SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
i5 4690K@4.9GHz 1.255V Asus Maximus VII Ranger Sapphire Fury X@1145/545 HyperX Savage 2x8GB 2400MHz C11 
Hard DriveCoolingOSMonitor
Samsung Evo 840 TR Archon SB-E X2 Win 7 Pro x64 / Win 10 x64 Asus MG279Q 
KeyboardPowerCaseMouse
Cherry MX-Board 3.0 Cooler Master V850 SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
Intel Q6600 G0 Asus P5K Premium Black Pearl Sapphire Toxic HD5850 Corsair Dominator 4GB 
Hard DriveCoolingOSPower
Crucial MX 100 256GB TR TRUE Rev.A Win 7 Pro x64 Cooler Master V650 
  hide details  
The Stilt Machine
(14 items)
 
XPS - i5 4690K
(12 items)
 
XPS - Q6600
(8 items)
 
CPUMotherboardGraphicsRAM
Ryzen 7 1700 Asus Crosshair VI Hero Sapphire Fury X@1145/545 G.Skill Trident Z 2x 8GB 3200MHz C14 
Hard DriveCoolingCoolingCooling
Samsung Evo 840 ThermalRight Archon IB-E X2 + 2x TY143 ThermalRight TY-143 2x front case intake Arctic Cooling F12 + 2x F9 as rear case exhaust 
OSMonitorKeyboardPower
Win 7 Pro x64 / Win 10 Pro x64 Asus MG279Q Cherry MX-Board 3.0 Cooler Master V850 
CaseMouse
SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
i5 4690K@4.9GHz 1.255V Asus Maximus VII Ranger Sapphire Fury X@1145/545 HyperX Savage 2x8GB 2400MHz C11 
Hard DriveCoolingOSMonitor
Samsung Evo 840 TR Archon SB-E X2 Win 7 Pro x64 / Win 10 x64 Asus MG279Q 
KeyboardPowerCaseMouse
Cherry MX-Board 3.0 Cooler Master V850 SilverStone TJ06 Logitech G700S 
CPUMotherboardGraphicsRAM
Intel Q6600 G0 Asus P5K Premium Black Pearl Sapphire Toxic HD5850 Corsair Dominator 4GB 
Hard DriveCoolingOSPower
Crucial MX 100 256GB TR TRUE Rev.A Win 7 Pro x64 Cooler Master V650 
  hide details  
post #865 of 1129
Quote:
Originally Posted by C2H5OH View Post

Here is an interesting discussion from reddit.
https://www.reddit.com/r/Amd/comments/4rbw8p/facts_about_pcie_connectors/
[/SPOILER]

Edit:
Added links
Added spoiler - not to take the whole page

This is a good read from someone who is actually an electrical engineer.
Black and Tan v.2
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7-7700K Asus ROG Strix Z270i GTX 1080Ti FE 16GB Corsair DDR4-3200 
Hard DriveHard DriveCoolingOS
250GB Samsung EVO 850 500GB Samsung EVO 850 Noctua NH-U12S Windows 10 Pro 64-Bit 
MonitorKeyboardPowerCase
Dell S2716DG Corsair K65 SeaSonic X-850 Fractal Design Define Nano S 
Mouse
Corsair M65 
  hide details  
Black and Tan v.2
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7-7700K Asus ROG Strix Z270i GTX 1080Ti FE 16GB Corsair DDR4-3200 
Hard DriveHard DriveCoolingOS
250GB Samsung EVO 850 500GB Samsung EVO 850 Noctua NH-U12S Windows 10 Pro 64-Bit 
MonitorKeyboardPowerCase
Dell S2716DG Corsair K65 SeaSonic X-850 Fractal Design Define Nano S 
Mouse
Corsair M65 
  hide details  
post #866 of 1129
Quote:
Originally Posted by Waitng4realGPU View Post

What does someone purchasing a 480 have to do with the profitability of the company?

Umm... I am sorry that public education failed you? rolleyes.gif
Tsar Bomba
(12 items)
 
Fat Man
(13 items)
 
Little Boy
(29 items)
 
CPUMotherboardRAMHard Drive
Intel Core i7-6700K ASRock Fatal1ty Z170 Gaming-ITX/ac Crucial Ballistix Sport LT 32GB (2 x 16GB) DDR4... Samsung 850 EVO 500GB M.2-2280 SSD 
Hard DriveCoolingCoolingOS
Sandisk Ultra II 960GB 2.5" SSD Zalman CNPS8900 Quiet Noctua NF-F12 PWM Microsoft Windows 10 Pro 
KeyboardPowerCaseMouse
Corsair K95 Corsair SF 600W Silverstone SG05BB-LITE Corsair M65 
CPUMotherboardGraphicsGraphics
AMD A10-7850K GIGABYTE GA-F2A88X-UP4 XFX R9-290A-ENBC Radeon R9 290 XFX R9-290A-ENBC Radeon R9 290 
Hard DriveHard DriveCoolingCooling
Samsung 830 128GB Western Digital Blue 1TB XSPC Raystorm CPU/APU Waterblock - AMD XSPC D5 Photon 170 Reservoir/Pump Combo 
CoolingCoolingCoolingPower
XSPC AX360 Radiator XSPC AX240 Radiator 2x XSPC Razor R9 290X / 290 - Full Cover Water ... EVGA Supernova 1000 P2 
Case
Corsair Carbide Series Air 540 Black  
CPUMotherboardGraphicsGraphics
Intel Core i7-4770K  Asus Maximus VI Extreme Sapphire R9 290 unlocked to 290X Sapphire R9 290 unlocked to 290X 
GraphicsGraphicsRAMHard Drive
Sapphire R9 290 unlocked to 290X Sapphire R9 290 unlocked to 290X G.SKILL Sniper Series 32GB (4 x 8GB) DDR3 2400 2x SAMSUNG 840 EVO 250GB 
Hard DriveOptical DriveCoolingCooling
2x TOSHIBA PH3300U-1I72 3TB Asus BW-12B1ST/BLK/G/AS Blu-Ray/DVD/CD Writer 29x Noctua NF-F12 PWM 2x Swiftech MCP655 + Bitspower Dual D5 Mod Top 
CoolingCoolingCoolingCooling
Phobya Balancer 450 Silver Nickel Reservoir 2x Alphacool NexXxoS XT45 480mm Radiator Alphacool NexXxoS XT45 360mm Radiator Alphacool NexXxoS XT45 240mm Radiator 
CoolingCoolingCoolingCooling
Alphacool NexXxoS ST30 240mm Radiator Alphacool NexXxoS XT45 120mm Radiator 4x Koolance VID-AR290X Radeon VGA Liquid Coolin... EK Supreme LTX Intel CPU Liquid Cooling Block -... 
OSMonitorMonitorMonitor
Microsoft Windows 8.1 Pro Asus VS238H-P 23.0" Asus VS238H-P 23.0" Asus VS238H-P 23.0" 
KeyboardPowerCaseMouse
Corsair Vengeance K95 ENERMAX Maxrevo EMR1500EWT 1500W Corsair Obsidian Series 900D Razer DeathAdder 2013 
Audio
Astro Gaming A50 Circumaural Headset - Black 
  hide details  
Tsar Bomba
(12 items)
 
Fat Man
(13 items)
 
Little Boy
(29 items)
 
CPUMotherboardRAMHard Drive
Intel Core i7-6700K ASRock Fatal1ty Z170 Gaming-ITX/ac Crucial Ballistix Sport LT 32GB (2 x 16GB) DDR4... Samsung 850 EVO 500GB M.2-2280 SSD 
Hard DriveCoolingCoolingOS
Sandisk Ultra II 960GB 2.5" SSD Zalman CNPS8900 Quiet Noctua NF-F12 PWM Microsoft Windows 10 Pro 
KeyboardPowerCaseMouse
Corsair K95 Corsair SF 600W Silverstone SG05BB-LITE Corsair M65 
CPUMotherboardGraphicsGraphics
AMD A10-7850K GIGABYTE GA-F2A88X-UP4 XFX R9-290A-ENBC Radeon R9 290 XFX R9-290A-ENBC Radeon R9 290 
Hard DriveHard DriveCoolingCooling
Samsung 830 128GB Western Digital Blue 1TB XSPC Raystorm CPU/APU Waterblock - AMD XSPC D5 Photon 170 Reservoir/Pump Combo 
CoolingCoolingCoolingPower
XSPC AX360 Radiator XSPC AX240 Radiator 2x XSPC Razor R9 290X / 290 - Full Cover Water ... EVGA Supernova 1000 P2 
Case
Corsair Carbide Series Air 540 Black  
CPUMotherboardGraphicsGraphics
Intel Core i7-4770K  Asus Maximus VI Extreme Sapphire R9 290 unlocked to 290X Sapphire R9 290 unlocked to 290X 
GraphicsGraphicsRAMHard Drive
Sapphire R9 290 unlocked to 290X Sapphire R9 290 unlocked to 290X G.SKILL Sniper Series 32GB (4 x 8GB) DDR3 2400 2x SAMSUNG 840 EVO 250GB 
Hard DriveOptical DriveCoolingCooling
2x TOSHIBA PH3300U-1I72 3TB Asus BW-12B1ST/BLK/G/AS Blu-Ray/DVD/CD Writer 29x Noctua NF-F12 PWM 2x Swiftech MCP655 + Bitspower Dual D5 Mod Top 
CoolingCoolingCoolingCooling
Phobya Balancer 450 Silver Nickel Reservoir 2x Alphacool NexXxoS XT45 480mm Radiator Alphacool NexXxoS XT45 360mm Radiator Alphacool NexXxoS XT45 240mm Radiator 
CoolingCoolingCoolingCooling
Alphacool NexXxoS ST30 240mm Radiator Alphacool NexXxoS XT45 120mm Radiator 4x Koolance VID-AR290X Radeon VGA Liquid Coolin... EK Supreme LTX Intel CPU Liquid Cooling Block -... 
OSMonitorMonitorMonitor
Microsoft Windows 8.1 Pro Asus VS238H-P 23.0" Asus VS238H-P 23.0" Asus VS238H-P 23.0" 
KeyboardPowerCaseMouse
Corsair Vengeance K95 ENERMAX Maxrevo EMR1500EWT 1500W Corsair Obsidian Series 900D Razer DeathAdder 2013 
Audio
Astro Gaming A50 Circumaural Headset - Black 
  hide details  
post #867 of 1129
Quote:
Originally Posted by Slomo4shO View Post

Umm... I am sorry that public education failed you? rolleyes.gif

Quit embarrassing yourself dude, you were way off topic and I called you out...............
post #868 of 1129
Quote:
Originally Posted by The Stilt View Post

They could have designed the reference card in a way that more of the power would have been drawn from the PCI-E power connector. Now they've gone with 50/50 distribution which means that at 150W TBP the PCI-E specifications will be maxed out at stock. When exceeding 150W (like most RX 480s do) you will violate either of the specifications regardless. The only question is if it is smarter to violate the specifications of the PCI-E power connector, which in reality can even in the worst case (2/3 connected, 8A low grade contacts) deliver 192W safely or the specifications of the PCI-E slot which actually might not withstand anything higher than it's rated power (either due using multiple cards or just due extremely poor design).

If AMD would have included a 8-pin connector, they could have drawn all of the GPU power from the PCI-E power connector and still stay within the spec. With 6-pin power connector they've could done exactly the same thing, however not without violating the spec. Violating the spec in case of the PCI-E power connector is perfectly safe in this case thou.

If using 6-pin power connector (for marketing reasons, which was most likely the case) was absolutely mandatory, personally I would have designed the card so that 4/6 of the GPU phases and the other power planes (VDDCI, VDDM) would been fed from the PCI-E power connector and the remaining two from the PCI-E slot.

Hm, could the board have been made with RX 470 in mind and not RX 480? Just a random thought...

Edit:
By that I mean, the board should not violate PCIe with the slower GDDR and should provide enough even for overclocking the RX 470 chip.
As such, RX 480 could have been meant for custom boards only etc..
Edited by C2H5OH - 7/5/16 at 9:24am
post #869 of 1129
Quote:
Originally Posted by Waitng4realGPU View Post

Quit embarrassing yourself dude

That is quite presumptuous of you biggrin.gif
Quote:
Originally Posted by Waitng4realGPU View Post

you were way off topic and I called you out...............

While we are off topic in this debunked thread, did you not take a basic economics class in high school? The relationship between revenue and profit shouldn't be the difficult to comprehend if one was exposed to the topics...
Tsar Bomba
(12 items)
 
Fat Man
(13 items)
 
Little Boy
(29 items)
 
CPUMotherboardRAMHard Drive
Intel Core i7-6700K ASRock Fatal1ty Z170 Gaming-ITX/ac Crucial Ballistix Sport LT 32GB (2 x 16GB) DDR4... Samsung 850 EVO 500GB M.2-2280 SSD 
Hard DriveCoolingCoolingOS
Sandisk Ultra II 960GB 2.5" SSD Zalman CNPS8900 Quiet Noctua NF-F12 PWM Microsoft Windows 10 Pro 
KeyboardPowerCaseMouse
Corsair K95 Corsair SF 600W Silverstone SG05BB-LITE Corsair M65 
CPUMotherboardGraphicsGraphics
AMD A10-7850K GIGABYTE GA-F2A88X-UP4 XFX R9-290A-ENBC Radeon R9 290 XFX R9-290A-ENBC Radeon R9 290 
Hard DriveHard DriveCoolingCooling
Samsung 830 128GB Western Digital Blue 1TB XSPC Raystorm CPU/APU Waterblock - AMD XSPC D5 Photon 170 Reservoir/Pump Combo 
CoolingCoolingCoolingPower
XSPC AX360 Radiator XSPC AX240 Radiator 2x XSPC Razor R9 290X / 290 - Full Cover Water ... EVGA Supernova 1000 P2 
Case
Corsair Carbide Series Air 540 Black  
CPUMotherboardGraphicsGraphics
Intel Core i7-4770K  Asus Maximus VI Extreme Sapphire R9 290 unlocked to 290X Sapphire R9 290 unlocked to 290X 
GraphicsGraphicsRAMHard Drive
Sapphire R9 290 unlocked to 290X Sapphire R9 290 unlocked to 290X G.SKILL Sniper Series 32GB (4 x 8GB) DDR3 2400 2x SAMSUNG 840 EVO 250GB 
Hard DriveOptical DriveCoolingCooling
2x TOSHIBA PH3300U-1I72 3TB Asus BW-12B1ST/BLK/G/AS Blu-Ray/DVD/CD Writer 29x Noctua NF-F12 PWM 2x Swiftech MCP655 + Bitspower Dual D5 Mod Top 
CoolingCoolingCoolingCooling
Phobya Balancer 450 Silver Nickel Reservoir 2x Alphacool NexXxoS XT45 480mm Radiator Alphacool NexXxoS XT45 360mm Radiator Alphacool NexXxoS XT45 240mm Radiator 
CoolingCoolingCoolingCooling
Alphacool NexXxoS ST30 240mm Radiator Alphacool NexXxoS XT45 120mm Radiator 4x Koolance VID-AR290X Radeon VGA Liquid Coolin... EK Supreme LTX Intel CPU Liquid Cooling Block -... 
OSMonitorMonitorMonitor
Microsoft Windows 8.1 Pro Asus VS238H-P 23.0" Asus VS238H-P 23.0" Asus VS238H-P 23.0" 
KeyboardPowerCaseMouse
Corsair Vengeance K95 ENERMAX Maxrevo EMR1500EWT 1500W Corsair Obsidian Series 900D Razer DeathAdder 2013 
Audio
Astro Gaming A50 Circumaural Headset - Black 
  hide details  
Tsar Bomba
(12 items)
 
Fat Man
(13 items)
 
Little Boy
(29 items)
 
CPUMotherboardRAMHard Drive
Intel Core i7-6700K ASRock Fatal1ty Z170 Gaming-ITX/ac Crucial Ballistix Sport LT 32GB (2 x 16GB) DDR4... Samsung 850 EVO 500GB M.2-2280 SSD 
Hard DriveCoolingCoolingOS
Sandisk Ultra II 960GB 2.5" SSD Zalman CNPS8900 Quiet Noctua NF-F12 PWM Microsoft Windows 10 Pro 
KeyboardPowerCaseMouse
Corsair K95 Corsair SF 600W Silverstone SG05BB-LITE Corsair M65 
CPUMotherboardGraphicsGraphics
AMD A10-7850K GIGABYTE GA-F2A88X-UP4 XFX R9-290A-ENBC Radeon R9 290 XFX R9-290A-ENBC Radeon R9 290 
Hard DriveHard DriveCoolingCooling
Samsung 830 128GB Western Digital Blue 1TB XSPC Raystorm CPU/APU Waterblock - AMD XSPC D5 Photon 170 Reservoir/Pump Combo 
CoolingCoolingCoolingPower
XSPC AX360 Radiator XSPC AX240 Radiator 2x XSPC Razor R9 290X / 290 - Full Cover Water ... EVGA Supernova 1000 P2 
Case
Corsair Carbide Series Air 540 Black  
CPUMotherboardGraphicsGraphics
Intel Core i7-4770K  Asus Maximus VI Extreme Sapphire R9 290 unlocked to 290X Sapphire R9 290 unlocked to 290X 
GraphicsGraphicsRAMHard Drive
Sapphire R9 290 unlocked to 290X Sapphire R9 290 unlocked to 290X G.SKILL Sniper Series 32GB (4 x 8GB) DDR3 2400 2x SAMSUNG 840 EVO 250GB 
Hard DriveOptical DriveCoolingCooling
2x TOSHIBA PH3300U-1I72 3TB Asus BW-12B1ST/BLK/G/AS Blu-Ray/DVD/CD Writer 29x Noctua NF-F12 PWM 2x Swiftech MCP655 + Bitspower Dual D5 Mod Top 
CoolingCoolingCoolingCooling
Phobya Balancer 450 Silver Nickel Reservoir 2x Alphacool NexXxoS XT45 480mm Radiator Alphacool NexXxoS XT45 360mm Radiator Alphacool NexXxoS XT45 240mm Radiator 
CoolingCoolingCoolingCooling
Alphacool NexXxoS ST30 240mm Radiator Alphacool NexXxoS XT45 120mm Radiator 4x Koolance VID-AR290X Radeon VGA Liquid Coolin... EK Supreme LTX Intel CPU Liquid Cooling Block -... 
OSMonitorMonitorMonitor
Microsoft Windows 8.1 Pro Asus VS238H-P 23.0" Asus VS238H-P 23.0" Asus VS238H-P 23.0" 
KeyboardPowerCaseMouse
Corsair Vengeance K95 ENERMAX Maxrevo EMR1500EWT 1500W Corsair Obsidian Series 900D Razer DeathAdder 2013 
Audio
Astro Gaming A50 Circumaural Headset - Black 
  hide details  
post #870 of 1129
Quote:
Originally Posted by C2H5OH View Post

Hm, could the board have been made with RX 470 in mind and not RX 480? Just a random thought...

Edit:
By that I mean, the board should not violate PCIe with the slower GDDR and should provide enough even for overclocking the RX 470 chip.
As such, RX 480 could have been meant for custom boards only etc..

I rather expect that the issue exist only because the power consumption and especially the variation of Polaris 10 silicon was greater than AMD originally expected it to be. Based on how large variations we've already seen in the leakage of the different RX 480 specimens, I would say it is the process yields to blame mostly.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Hardware News
This thread is locked  
Overclock.net › Forums › Industry News › Hardware News › [Reddit] RX 480 fails PCI-E specification