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 56  

post #551 of 1129
Quote:
Originally Posted by Defoler View Post

Of course a connector change isn't going to fix the PCIE motherboard draw.
That requires a change in most likely, the design of the card.

I was just saying that if the card needed too much power which is why it also requires a lot of power from the PCIE slot, a move to less power to the PCIE slot and more through the 6 pin (or 8 pin if it requires too much), would have been better.
Slap a 8 pin instead and draw most of your power from it, should fix all of the cards power problems.

Also, talking about the strix version is completely irrelevant. It is not a reference card. A reference card usually takes less power than AIB cards. Some AIB 960s have 8 pin instead of 6 pin (like the evga ssc version).

The reference design of the 480 seems to be flawed if this is a true issue.
Talking about the 960 strix is like saying "well if he robbed a bank and wasn't caught, I'm allowed to do the same, because he got away with it". It is wrong. Just plain wrong.

I've seen this brought up by a few people, but why?

If the mosfets are hardwired to the power sources, all it means is there's a limit to how much you can pull from each source without going out of spec on either the power source OR mosfets. There's literally nothing stopping you pulling LESS power from each power source, and the bios is what's responsible for controlling how much power is drawn, so I don't see why a bios update couldn't fix this problem.
post #552 of 1129
Quote:
Originally Posted by prjindigo View Post

PCIe slot power transmission to card is only limited to 75w IF THE CARD HAS NO POWER CABLE ATTACHED. The slot lacks the superior ground necessary to provide a higher wattage.

Most cards on the market today pull up in the 80/90 range and it's well within spec if you have a PCIe power cable connected to the graphics card.

The addition of the power cable allows a much much higher power draw through the x16 slots. The x8 slots however are more heavily limited and while some cards CAN run in x4 slots, they often will refuse to.

This is the worst explanation I've heard so far... well maybe not as bad as that guy that was convinced the PCI-E slot can deliver 300W.

https://en.wikipedia.org/wiki/PCI_Express#Pinout

The slot is mostly ground.

The reason why it's max 66W sustained on +12V is because there are only 5 12V pins on the socket and they're only rated to 5.5A total.
post #553 of 1129

It's mostly ground to provide a proximity ground plane to the differential pairs, or interleaved ground lines with data lines (to comply with PCIe signal integrity specifications).

 

It's not really there so you can feed eleventy billion amps from the +12V rails through the add-in connectors.

   
AGP bencher
(14 items)
 
CPUMotherboardGraphicsRAM
Ryzen R7 1700 Gigabyte GA-AX370-Gaming 5 Sapphire HD 6950 2GiB 2x8GB KFA2 HOF DDR4-3600 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX100 256GB Seagate 600 Series 240GB Seagate 7200.14 2TB Samsung F3 1TB 
CoolingCoolingCoolingCooling
EKWB Supreme HF XSPC Rasa GPU EK XT360 EK 4.0 
OSMonitorMonitorKeyboard
W10 Pro LG IPS235 LG E2250V KUL ES-87 
PowerCaseMouseAudio
SF Leadex II 650W Lian Li PC-A05NB Logitech G9 Xonar DX 
AudioAudio
SMSL SA-S3+Technics CB-250 Sennheiser HD555 
CPUMotherboardRAMHard Drive
AMD A10-5700 Gigabyte F2A75M-HD2 G.SKILL Ares 2133 CL9 Hitachi 5K750 
Hard DriveCoolingOSMonitor
Momentus .7 200GB Noctua NH-L9a Server 2012 R2 Standard AUO B156HW01 
PowerCaseOther
PicoPSU-80-WI-25V AIO Aluminium Handmade TP-Link Archer Something Something Wi-Fi AC 
CPUCPUCPUMotherboard
Core2Duo E6400 Core2Quad Q6600 Pentium Dual Core E5200 AsRock 4COREDUAL-SATA2 R2.0 
GraphicsRAMHard DriveOptical Drive
A dumpload of ancient AGP cards Kingston Value DDR2-667 CL4 2T @CL3 1T Seagate 160GB 7200.10 LG IDE DVD-ROM 
CoolingCoolingOSMonitor
Ghettomade CPU waterblock 49cc 2stroke engine copper radiator WinXP SP2 32bit ProView 17" 
PowerCase
Tacens Radix V 550W Ghetto aluminium bench 
  hide details  
   
AGP bencher
(14 items)
 
CPUMotherboardGraphicsRAM
Ryzen R7 1700 Gigabyte GA-AX370-Gaming 5 Sapphire HD 6950 2GiB 2x8GB KFA2 HOF DDR4-3600 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX100 256GB Seagate 600 Series 240GB Seagate 7200.14 2TB Samsung F3 1TB 
CoolingCoolingCoolingCooling
EKWB Supreme HF XSPC Rasa GPU EK XT360 EK 4.0 
OSMonitorMonitorKeyboard
W10 Pro LG IPS235 LG E2250V KUL ES-87 
PowerCaseMouseAudio
SF Leadex II 650W Lian Li PC-A05NB Logitech G9 Xonar DX 
AudioAudio
SMSL SA-S3+Technics CB-250 Sennheiser HD555 
CPUMotherboardRAMHard Drive
AMD A10-5700 Gigabyte F2A75M-HD2 G.SKILL Ares 2133 CL9 Hitachi 5K750 
Hard DriveCoolingOSMonitor
Momentus .7 200GB Noctua NH-L9a Server 2012 R2 Standard AUO B156HW01 
PowerCaseOther
PicoPSU-80-WI-25V AIO Aluminium Handmade TP-Link Archer Something Something Wi-Fi AC 
CPUCPUCPUMotherboard
Core2Duo E6400 Core2Quad Q6600 Pentium Dual Core E5200 AsRock 4COREDUAL-SATA2 R2.0 
GraphicsRAMHard DriveOptical Drive
A dumpload of ancient AGP cards Kingston Value DDR2-667 CL4 2T @CL3 1T Seagate 160GB 7200.10 LG IDE DVD-ROM 
CoolingCoolingOSMonitor
Ghettomade CPU waterblock 49cc 2stroke engine copper radiator WinXP SP2 32bit ProView 17" 
PowerCase
Tacens Radix V 550W Ghetto aluminium bench 
  hide details  
post #554 of 1129
https://community.amd.com/thread/202410

has anyone posted this article here? seems this guy verified he fried his PCI-E slot with a 480?
post #555 of 1129
It was posted several times already, pretty sure i was the one who posted it first btw.

https://www.youtube.com/watch?v=ZjAlrGzHAkI&t - new video from pcper regarding this issue.
They also looked at 960 strix from asus - it has spikes at 6-6.5A but voltage doesn't really drop on it like it was with RX480 (27min if anyones interested)

TL;DR from video: Volts in games/under load is dropping hence more current is being used ~6.5A average while spec max for 12v is 5.5A. In reality there's two fixes either bios or driver fix and there's post from AMDJoe that seems like it's going be driver fix in next few days. Cards with 8Pin connector will probably avoid this issue all together.
Quote:
AMDJoe - Today at 10:41 AM As you know, we continuously tune our GPUs in order to maximize their performance within their given power envelopes and the speed of the memory interface, which in this case is an unprecedented 8Gbps for GDDR5. Recently, we identified select scenarios where the tuning of some RX 480 boards was not optimal. Fortunately, we can adjust the GPU's tuning via software in order to resolve this issue. We are already testing a driver that implements a fix, and we will provide an update to the community on our progress on Tuesday (July 5, 2016). Tldr: fix in upcoming driver
Gaming RigX
(21 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3970x Asus P9X79 HIS 7970 Kingston Predator 2x8gb DDR3 2133 mhz 
Hard DriveHard DriveHard DriveHard Drive
Seagate Constelation 1TB Intel 330 WD 3TB  Seagate Baracuda 2TB Sata III 
CoolingOSMonitorKeyboard
Corsair H110 Windows 7 Ultimate Philips 24' EEL IPS 1080P  CM Quickfire Storm Red Switches 
PowerCaseMouseMouse Pad
OCZ 850w ZX None Logitech G400s QCK Mass 
AudioAudioAudioAudio
Beyerdynamics DT 770 Pro 80ohm headphones  Fiio E10 headphone amp/dac  Magnat Supreme 2000 - x2 Marantz PM7200 amp 
Audio
Shure SE215 
  hide details  
Gaming RigX
(21 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3970x Asus P9X79 HIS 7970 Kingston Predator 2x8gb DDR3 2133 mhz 
Hard DriveHard DriveHard DriveHard Drive
Seagate Constelation 1TB Intel 330 WD 3TB  Seagate Baracuda 2TB Sata III 
CoolingOSMonitorKeyboard
Corsair H110 Windows 7 Ultimate Philips 24' EEL IPS 1080P  CM Quickfire Storm Red Switches 
PowerCaseMouseMouse Pad
OCZ 850w ZX None Logitech G400s QCK Mass 
AudioAudioAudioAudio
Beyerdynamics DT 770 Pro 80ohm headphones  Fiio E10 headphone amp/dac  Magnat Supreme 2000 - x2 Marantz PM7200 amp 
Audio
Shure SE215 
  hide details  
post #556 of 1129

 

Have a gander at how the board sits around the case bracket area.

 

Have a gander at how extremely filthy the PCI Express slots are (all of them).

 

The card is warped quite substantially, forcefully (most likely when screwing it in), around the front of the PCI Express slot. That specific area is where the supply pins are.

 

I wouldn't be surprised at all if the uneven contact paired with whatever grime was in the slots that got jammed in as he replaced the 750 with the 480, is what actually damaged the motherboard when the card tried to suck juice.

 

 

The card pulls over spec? Certainly. But there are good examples and poor examples. This one seems a case of the latter.

   
AGP bencher
(14 items)
 
CPUMotherboardGraphicsRAM
Ryzen R7 1700 Gigabyte GA-AX370-Gaming 5 Sapphire HD 6950 2GiB 2x8GB KFA2 HOF DDR4-3600 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX100 256GB Seagate 600 Series 240GB Seagate 7200.14 2TB Samsung F3 1TB 
CoolingCoolingCoolingCooling
EKWB Supreme HF XSPC Rasa GPU EK XT360 EK 4.0 
OSMonitorMonitorKeyboard
W10 Pro LG IPS235 LG E2250V KUL ES-87 
PowerCaseMouseAudio
SF Leadex II 650W Lian Li PC-A05NB Logitech G9 Xonar DX 
AudioAudio
SMSL SA-S3+Technics CB-250 Sennheiser HD555 
CPUMotherboardRAMHard Drive
AMD A10-5700 Gigabyte F2A75M-HD2 G.SKILL Ares 2133 CL9 Hitachi 5K750 
Hard DriveCoolingOSMonitor
Momentus .7 200GB Noctua NH-L9a Server 2012 R2 Standard AUO B156HW01 
PowerCaseOther
PicoPSU-80-WI-25V AIO Aluminium Handmade TP-Link Archer Something Something Wi-Fi AC 
CPUCPUCPUMotherboard
Core2Duo E6400 Core2Quad Q6600 Pentium Dual Core E5200 AsRock 4COREDUAL-SATA2 R2.0 
GraphicsRAMHard DriveOptical Drive
A dumpload of ancient AGP cards Kingston Value DDR2-667 CL4 2T @CL3 1T Seagate 160GB 7200.10 LG IDE DVD-ROM 
CoolingCoolingOSMonitor
Ghettomade CPU waterblock 49cc 2stroke engine copper radiator WinXP SP2 32bit ProView 17" 
PowerCase
Tacens Radix V 550W Ghetto aluminium bench 
  hide details  
   
AGP bencher
(14 items)
 
CPUMotherboardGraphicsRAM
Ryzen R7 1700 Gigabyte GA-AX370-Gaming 5 Sapphire HD 6950 2GiB 2x8GB KFA2 HOF DDR4-3600 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX100 256GB Seagate 600 Series 240GB Seagate 7200.14 2TB Samsung F3 1TB 
CoolingCoolingCoolingCooling
EKWB Supreme HF XSPC Rasa GPU EK XT360 EK 4.0 
OSMonitorMonitorKeyboard
W10 Pro LG IPS235 LG E2250V KUL ES-87 
PowerCaseMouseAudio
SF Leadex II 650W Lian Li PC-A05NB Logitech G9 Xonar DX 
AudioAudio
SMSL SA-S3+Technics CB-250 Sennheiser HD555 
CPUMotherboardRAMHard Drive
AMD A10-5700 Gigabyte F2A75M-HD2 G.SKILL Ares 2133 CL9 Hitachi 5K750 
Hard DriveCoolingOSMonitor
Momentus .7 200GB Noctua NH-L9a Server 2012 R2 Standard AUO B156HW01 
PowerCaseOther
PicoPSU-80-WI-25V AIO Aluminium Handmade TP-Link Archer Something Something Wi-Fi AC 
CPUCPUCPUMotherboard
Core2Duo E6400 Core2Quad Q6600 Pentium Dual Core E5200 AsRock 4COREDUAL-SATA2 R2.0 
GraphicsRAMHard DriveOptical Drive
A dumpload of ancient AGP cards Kingston Value DDR2-667 CL4 2T @CL3 1T Seagate 160GB 7200.10 LG IDE DVD-ROM 
CoolingCoolingOSMonitor
Ghettomade CPU waterblock 49cc 2stroke engine copper radiator WinXP SP2 32bit ProView 17" 
PowerCase
Tacens Radix V 550W Ghetto aluminium bench 
  hide details  
post #557 of 1129
Quote:
As you know, we continuously tune our GPUs in order to maximize their performance within their given power envelopes and the speed of the memory interface, which in this case is an unprecedented 8Gbps for GDDR5. Recently, we identified select scenarios where the tuning of some RX 480 boards was not optimal. Fortunately, we can adjust the GPU’s tuning via software in order to resolve this issue. We are already testing a driver that implements a fix, and we will provide an update to the community on our progress on Tuesday (July 5, 2016)

Source
    
CPUMotherboardGraphicsRAM
Ryzen 5 1600 (3.8@1.32v) ASRock Fatal1ty X370 Gaming 4K GTX 980 SC (1482/2000) 16GB G.Skill FlareX 3200mhz 
Hard DriveHard DriveCoolingOS
Samsung 850 EVO (500 GB) Seagate Barracuda (2TB) CM MasterLiquid 120 Windows 10 
MonitorKeyboardPowerCase
ASUS VE258Q Corsair Strafe RGB EVGA Supernova 650 G2 Alienware Predator (2004) 
MouseAudioOther
Corsair Scimitar RGB Hyper X Cloud II XBox One Controller 
  hide details  
    
CPUMotherboardGraphicsRAM
Ryzen 5 1600 (3.8@1.32v) ASRock Fatal1ty X370 Gaming 4K GTX 980 SC (1482/2000) 16GB G.Skill FlareX 3200mhz 
Hard DriveHard DriveCoolingOS
Samsung 850 EVO (500 GB) Seagate Barracuda (2TB) CM MasterLiquid 120 Windows 10 
MonitorKeyboardPowerCase
ASUS VE258Q Corsair Strafe RGB EVGA Supernova 650 G2 Alienware Predator (2004) 
MouseAudioOther
Corsair Scimitar RGB Hyper X Cloud II XBox One Controller 
  hide details  
post #558 of 1129
Im mostly intrested in more info about lowering voltage, as some of OCN community said, lowering voltage not only decrease the power usage of rx 480 but also increase its performance. Maybe AMD screw their bios for this card?
post #559 of 1129
Quote:
Originally Posted by prznar1 View Post

Im mostly intrested in more info about lowering voltage, as some of OCN community said, lowering voltage not only decrease the power usage of rx 480 but also increase its performance. Maybe AMD screw their bios for this card?

 

Quite probable.

 

I'd expect a coming driver update detects reference boards and updates the default profiles accordingly.

   
AGP bencher
(14 items)
 
CPUMotherboardGraphicsRAM
Ryzen R7 1700 Gigabyte GA-AX370-Gaming 5 Sapphire HD 6950 2GiB 2x8GB KFA2 HOF DDR4-3600 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX100 256GB Seagate 600 Series 240GB Seagate 7200.14 2TB Samsung F3 1TB 
CoolingCoolingCoolingCooling
EKWB Supreme HF XSPC Rasa GPU EK XT360 EK 4.0 
OSMonitorMonitorKeyboard
W10 Pro LG IPS235 LG E2250V KUL ES-87 
PowerCaseMouseAudio
SF Leadex II 650W Lian Li PC-A05NB Logitech G9 Xonar DX 
AudioAudio
SMSL SA-S3+Technics CB-250 Sennheiser HD555 
CPUMotherboardRAMHard Drive
AMD A10-5700 Gigabyte F2A75M-HD2 G.SKILL Ares 2133 CL9 Hitachi 5K750 
Hard DriveCoolingOSMonitor
Momentus .7 200GB Noctua NH-L9a Server 2012 R2 Standard AUO B156HW01 
PowerCaseOther
PicoPSU-80-WI-25V AIO Aluminium Handmade TP-Link Archer Something Something Wi-Fi AC 
CPUCPUCPUMotherboard
Core2Duo E6400 Core2Quad Q6600 Pentium Dual Core E5200 AsRock 4COREDUAL-SATA2 R2.0 
GraphicsRAMHard DriveOptical Drive
A dumpload of ancient AGP cards Kingston Value DDR2-667 CL4 2T @CL3 1T Seagate 160GB 7200.10 LG IDE DVD-ROM 
CoolingCoolingOSMonitor
Ghettomade CPU waterblock 49cc 2stroke engine copper radiator WinXP SP2 32bit ProView 17" 
PowerCase
Tacens Radix V 550W Ghetto aluminium bench 
  hide details  
   
AGP bencher
(14 items)
 
CPUMotherboardGraphicsRAM
Ryzen R7 1700 Gigabyte GA-AX370-Gaming 5 Sapphire HD 6950 2GiB 2x8GB KFA2 HOF DDR4-3600 
Hard DriveHard DriveHard DriveHard Drive
Crucial MX100 256GB Seagate 600 Series 240GB Seagate 7200.14 2TB Samsung F3 1TB 
CoolingCoolingCoolingCooling
EKWB Supreme HF XSPC Rasa GPU EK XT360 EK 4.0 
OSMonitorMonitorKeyboard
W10 Pro LG IPS235 LG E2250V KUL ES-87 
PowerCaseMouseAudio
SF Leadex II 650W Lian Li PC-A05NB Logitech G9 Xonar DX 
AudioAudio
SMSL SA-S3+Technics CB-250 Sennheiser HD555 
CPUMotherboardRAMHard Drive
AMD A10-5700 Gigabyte F2A75M-HD2 G.SKILL Ares 2133 CL9 Hitachi 5K750 
Hard DriveCoolingOSMonitor
Momentus .7 200GB Noctua NH-L9a Server 2012 R2 Standard AUO B156HW01 
PowerCaseOther
PicoPSU-80-WI-25V AIO Aluminium Handmade TP-Link Archer Something Something Wi-Fi AC 
CPUCPUCPUMotherboard
Core2Duo E6400 Core2Quad Q6600 Pentium Dual Core E5200 AsRock 4COREDUAL-SATA2 R2.0 
GraphicsRAMHard DriveOptical Drive
A dumpload of ancient AGP cards Kingston Value DDR2-667 CL4 2T @CL3 1T Seagate 160GB 7200.10 LG IDE DVD-ROM 
CoolingCoolingOSMonitor
Ghettomade CPU waterblock 49cc 2stroke engine copper radiator WinXP SP2 32bit ProView 17" 
PowerCase
Tacens Radix V 550W Ghetto aluminium bench 
  hide details  
post #560 of 1129
Don't know if it's been posted yet but.

http://www.guru3d.com/news-story/amd-gives-statement-on-the-pci-express-overcurrent-problems.html


Guru3d has done some more testing as well.
Quote:
Yesterday we have been performing some additional stress tests ourselves and cannot replicate the issues mention on the web. We do see a minor increase of temperature on the PCI-Express slot, but nothing rather concerning.
My PC
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 - 5820k MSI X99S Plus SLI Sapphire R9 Fury NITRO Corsair Vengeance 16GB DDR4 2800Mhz 
Hard DriveHard DriveOptical DriveCooling
Samsung SM951 512GB Seagate Barracuda 500GB Noctua NH-U14S 
OSMonitorKeyboardPower
Windows 7 Ultimate 64Bit Asus MG279Q Logitech G510 Corsair RM750 
CaseMouseMouse PadAudio
Corsair Obsidian 700D Logitech G700 Outplay Sennheiser HD598 
Audio
Tritton PC510HDA (Microphone use only) 
  hide details  
My PC
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 - 5820k MSI X99S Plus SLI Sapphire R9 Fury NITRO Corsair Vengeance 16GB DDR4 2800Mhz 
Hard DriveHard DriveOptical DriveCooling
Samsung SM951 512GB Seagate Barracuda 500GB Noctua NH-U14S 
OSMonitorKeyboardPower
Windows 7 Ultimate 64Bit Asus MG279Q Logitech G510 Corsair RM750 
CaseMouseMouse PadAudio
Corsair Obsidian 700D Logitech G700 Outplay Sennheiser HD598 
Audio
Tritton PC510HDA (Microphone use only) 
  hide details  
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