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 39  

post #381 of 1129
Posting here since i've posted else where.

I have 3 480's setup in Crossfire on my Rampage IV Extreme. The XFX card draws more wattage (And by default has a higher clock then the rest of the cards). After running 3dmark (First thing i did with the 3 card together) I lost my audio ports. Reading elsewhere audio would be the first thing affected.

Rampages IV have had reported audio issues in the past in-which maybe the cards triggered, or the cards did itself by pulling a crazy amount of wattage.

Later ill be removing one card when i get home hoping my audio port comes back, If not submitting RMA on the XFX card since it was the last one to be installed before losing audio.
Red Rig V2
(15 items)
 
  
CPUMotherboardGraphicsRAM
5820 Rampage V 10 1080 Corsair 32GB 
Hard DriveHard DriveCoolingOS
Samsung 950 NVME Western Digital 1TB Black H115 Windows 10 Pro 
MonitorMonitorMonitorKeyboard
Dell 28" 4K LG 24" LG 24" Logitech G19s 
PowerCaseMouse
Corsair 750 Corsair 540 Logitech G500 
  hide details  
Red Rig V2
(15 items)
 
  
CPUMotherboardGraphicsRAM
5820 Rampage V 10 1080 Corsair 32GB 
Hard DriveHard DriveCoolingOS
Samsung 950 NVME Western Digital 1TB Black H115 Windows 10 Pro 
MonitorMonitorMonitorKeyboard
Dell 28" 4K LG 24" LG 24" Logitech G19s 
PowerCaseMouse
Corsair 750 Corsair 540 Logitech G500 
  hide details  
post #382 of 1129
Quote:
Originally Posted by looniam View Post

I guess the EMI from the power traces could cause the audio chip to go flonky.

Eh, I still don't buy that. Some 960's had peaks in the same ballpark as the peaks on RX 480 which would mean that EMI would be similar. The board used also has a history of audio and build quality issues AFAIK.
μRyzen
(12 items)
 
Mini Box
(4 items)
 
 
CPUMotherboardGraphicsRAM
Ryzen R5 1400 MSI B350M Gaming Pro Zotac GTX 670 4GB G.SKILL FORTIS Series 8GB (2 x 4GB) 
Hard DriveCoolingOSOS
WD Green 3tb Wraith Stealth Windows 10 Debian 8.7 
MonitorKeyboardPowerMouse
ViewSonic VX-2257-8 Chinese backlit mechanical Kingwin 850w Chinese laser optical 
CPUMotherboardGraphicsRAM
Athlon 5350 Asus AM1I-A EVGA GTX 750 Ti SC 2x4GB DDR 3 1333 
  hide details  
μRyzen
(12 items)
 
Mini Box
(4 items)
 
 
CPUMotherboardGraphicsRAM
Ryzen R5 1400 MSI B350M Gaming Pro Zotac GTX 670 4GB G.SKILL FORTIS Series 8GB (2 x 4GB) 
Hard DriveCoolingOSOS
WD Green 3tb Wraith Stealth Windows 10 Debian 8.7 
MonitorKeyboardPowerMouse
ViewSonic VX-2257-8 Chinese backlit mechanical Kingwin 850w Chinese laser optical 
CPUMotherboardGraphicsRAM
Athlon 5350 Asus AM1I-A EVGA GTX 750 Ti SC 2x4GB DDR 3 1333 
  hide details  
post #383 of 1129
Maybe AMD was thinking that all motherboards will have a Molex or 6pin motherboard power plug for extra PCI-e Power like My X79 Champion does lol.
post #384 of 1129
Quote:
Originally Posted by TUFinside View Post

They NEEDED a perfect release for this card and they screwed up.Maybe they wanted at all cost (dumb) to keep a low TDP and communicate around it to counter Nvidia ? My question is does a 8 pin PCIE power delivery will take the TDP off the roof and make that card to heat up like no tomorrow ?

I would not be terribly surprised to learn that this was a case of corporate sabotage. AMD has never made a mistake like this before and has always been completely forthcoming when they built GPUs which would even potentially violate spec (295x2, IIRC).

Not a single person would have cared if the RX 480 had an 8-pin connector instead of a 6-pin... except maybe an OEM partner...

Still, the problem is with the load distribution in the VRM. Any overload current should ALWAYS come via the PCI-e power connectors rather than the slot. The slot should never exceed 66W on the 12V rail.
post #385 of 1129

Guys, doesn't that motherboard audio us the PCI-E bus to communicate to the CPU etc, so if there's a peripheral problem on the PCI-E bus or worse yet a power problem interrupting the signal clocks etc... would make sense. Just checking though. I could have sworn it was connected to the PCI-E which connects to the southbridge on that specific mobo.

post #386 of 1129
Quote:
Originally Posted by Cubeman View Post

Posting here since i've posted else where.

I have 3 480's setup in Crossfire on my Rampage IV Extreme. The XFX card draws more wattage (And by default has a higher clock then the rest of the cards). After running 3dmark (First thing i did with the 3 card together) I lost my audio ports. Reading elsewhere audio would be the first thing affected.

Rampages IV have had reported audio issues in the past in-which maybe the cards triggered, or the cards did itself by pulling a crazy amount of wattage.

Later ill be removing one card when i get home hoping my audio port comes back, If not submitting RMA on the XFX card since it was the last one to be installed before losing audio.

You didn't overclock them at all?

As Slomo said in the other thread, did you give PCIE supplemental power? If not, try that when you get home and see if all goes back to normal.



It's unacceptable that the reference 480's go over spec, but in the real world (particularly with one of the best boards out there) i don't think they would cause any damage..

If i were you though, i would try (assuming you can't get it working) to get a replacement board. AMD's mess up, use them and abuse them. tongue.gif
Edited by GorillaSceptre - 7/1/16 at 9:16am
post #387 of 1129
Quote:
Originally Posted by Ghoxt View Post

Guys, doesn't that motherboard audio us the PCI-E bus to communicate to the CPU etc, so if there's a peripheral problem on the PCI-E bus or worse yet a power problem interrupting the signal clocks etc... would make sense. Just checking though. I could have sworn it was connected to the PCI-E which connects to the southbridge on that specific mobo.

No, it does not work like that. PCIe slots have some pins tied to the 12v bus on the motherboard. The Audio chip most assuredly does not use 12v, it only uses 3.3v.
μRyzen
(12 items)
 
Mini Box
(4 items)
 
 
CPUMotherboardGraphicsRAM
Ryzen R5 1400 MSI B350M Gaming Pro Zotac GTX 670 4GB G.SKILL FORTIS Series 8GB (2 x 4GB) 
Hard DriveCoolingOSOS
WD Green 3tb Wraith Stealth Windows 10 Debian 8.7 
MonitorKeyboardPowerMouse
ViewSonic VX-2257-8 Chinese backlit mechanical Kingwin 850w Chinese laser optical 
CPUMotherboardGraphicsRAM
Athlon 5350 Asus AM1I-A EVGA GTX 750 Ti SC 2x4GB DDR 3 1333 
  hide details  
μRyzen
(12 items)
 
Mini Box
(4 items)
 
 
CPUMotherboardGraphicsRAM
Ryzen R5 1400 MSI B350M Gaming Pro Zotac GTX 670 4GB G.SKILL FORTIS Series 8GB (2 x 4GB) 
Hard DriveCoolingOSOS
WD Green 3tb Wraith Stealth Windows 10 Debian 8.7 
MonitorKeyboardPowerMouse
ViewSonic VX-2257-8 Chinese backlit mechanical Kingwin 850w Chinese laser optical 
CPUMotherboardGraphicsRAM
Athlon 5350 Asus AM1I-A EVGA GTX 750 Ti SC 2x4GB DDR 3 1333 
  hide details  
post #388 of 1129
Quote:
Originally Posted by KarathKasun View Post

No, it does not work like that. PCIe slots have some pins tied to the 12v bus on the motherboard. The Audio chip most assuredly does not use 12v, it only uses 3.3v.

 

Not power, I meant the actual Audio data...

post #389 of 1129
Quote:
Originally Posted by Ghoxt View Post

Not power, I meant the actual Audio data...

No. PCIe is point to point. Each device has its own independent data connection to the chipset/CPU.
μRyzen
(12 items)
 
Mini Box
(4 items)
 
 
CPUMotherboardGraphicsRAM
Ryzen R5 1400 MSI B350M Gaming Pro Zotac GTX 670 4GB G.SKILL FORTIS Series 8GB (2 x 4GB) 
Hard DriveCoolingOSOS
WD Green 3tb Wraith Stealth Windows 10 Debian 8.7 
MonitorKeyboardPowerMouse
ViewSonic VX-2257-8 Chinese backlit mechanical Kingwin 850w Chinese laser optical 
CPUMotherboardGraphicsRAM
Athlon 5350 Asus AM1I-A EVGA GTX 750 Ti SC 2x4GB DDR 3 1333 
  hide details  
μRyzen
(12 items)
 
Mini Box
(4 items)
 
 
CPUMotherboardGraphicsRAM
Ryzen R5 1400 MSI B350M Gaming Pro Zotac GTX 670 4GB G.SKILL FORTIS Series 8GB (2 x 4GB) 
Hard DriveCoolingOSOS
WD Green 3tb Wraith Stealth Windows 10 Debian 8.7 
MonitorKeyboardPowerMouse
ViewSonic VX-2257-8 Chinese backlit mechanical Kingwin 850w Chinese laser optical 
CPUMotherboardGraphicsRAM
Athlon 5350 Asus AM1I-A EVGA GTX 750 Ti SC 2x4GB DDR 3 1333 
  hide details  
post #390 of 1129
Quote:
Originally Posted by Ghoxt View Post

Not power, I meant the actual Audio data...

Yes, i think on board audio uses the PCI-E lanes.

Nope.
Edited by criminal - 7/1/16 at 9:20am
Super P's rig
(20 items)
 
  
CPUMotherboardGraphicsRAM
5960x ASUS X99-A II Asus GTX 1080 Ti Corsair Vengeance DDR4 3000 
Hard DriveHard DriveHard DriveOptical Drive
MyDigitalSSD BPX NVMe Samsung 850 EVO Seagate Momentus XT 500 GB External DVDRW 
CoolingCoolingOSMonitor
EK-XLC Predator 240 Swiftech 240mm Radiator Windows 10 Samsung 40" 4K - UN40KU6290 
KeyboardPowerCaseMouse
G710+ EVGA SuperNOVA 850G2 Fractal Design Define S G700s 
Mouse PadAudioAudioAudio
Vipamz Extended XXXL Asus U7 M-Audio AV40 Sennheiser HD 439 
  hide details  
Super P's rig
(20 items)
 
  
CPUMotherboardGraphicsRAM
5960x ASUS X99-A II Asus GTX 1080 Ti Corsair Vengeance DDR4 3000 
Hard DriveHard DriveHard DriveOptical Drive
MyDigitalSSD BPX NVMe Samsung 850 EVO Seagate Momentus XT 500 GB External DVDRW 
CoolingCoolingOSMonitor
EK-XLC Predator 240 Swiftech 240mm Radiator Windows 10 Samsung 40" 4K - UN40KU6290 
KeyboardPowerCaseMouse
G710+ EVGA SuperNOVA 850G2 Fractal Design Define S G700s 
Mouse PadAudioAudioAudio
Vipamz Extended XXXL Asus U7 M-Audio AV40 Sennheiser HD 439 
  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