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ASUS R9 280X DCU II TOP 3GB PCI-e x16 3.0 runs @ x8 problem

devilgod81
By devilgod81
in Graphics Cards
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ASUS R9 280X DCU II TOP 3GB PCI-e x16 3.0 runs @ x8 problem on Gigabyte Z87 HD3 mobo. No crossfire, and card is in right pci-e slot, yes....driver is ok, but having a problem when playing Shadof of war Midle Eatrh, or try to run msi kombustor app sometimes my PC just restarts?! PSU is Chieftec 650 watt nitro, i5 4670, 8gb Kingston savage xmp 2400mhz ddr3, 2x seagate 1tb hdd drives, on Gigabyte GA-Z87-HD3.Any other benchmark works well. And yes i had one restart on Just Cause 3. Why the hell card pci -e gen 3 runs on pci-e 3.0 x16 @ x8 speed. Bios settings are on gen 3 pci-e, and no xmp enabled. I reverted  bios on factory....problem is still there. I changed thermal paste, temeratures are normal for  this card and goes from 65 to 75 max in games....and 85 degree celsius in furmark stress and kombustor or rog furmark benchmarks. HELP? I saw many people have a same issue, and with nvidia cards too...even gtx1080. Here some screen's for better view on problem:

 

Desktop_2017_10_28_10_20_59_068.jpg

Desktop_2017_10_28_10_22_53_246.jpg

Desktop_2017_10_28_10_24_20_346.jpg

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Is the PCIe slot the first one? Some mobo have their second slot only built for x8 speeds, even though the slot itself is x16.

 

I havent heard of that PSU at all, hope it's not some explosive.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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It can be maybe a low RAM problem, or PSU related....but i never had PSU problem before, and tested it and it is stable. RAM also, but i know that i need 16 gb for newer titlEs.

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PSU Chieftec CFT-650-14CS,  SLI and Crossfire ready, modular. And yes card is in upper x16 slot, not in x8 below, I'm not that noob :). Thanks for reply dude, :)

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your board has a bios update that suggests "pci-e compatibility" version F6. are you running at least that version or newer?

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Ohh, there are Asus Xonar DG , and net cards, in PCI sstandard slots, not PCI-Ex1. But they are there as lon as i know , and before this gpu, and , never had a problem. Wierd shit?! I have no performance loss in games or in iddle, only that restartin on msi kombustor , and in Middle earth Shadow of war.....O_0....that anoys me.....and this shit @ x8.

IMG_20171018_212841.jpg

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There could be damage to PCIe Lanes 9-16, if any of them are missing the card will revert to 8x, I'd advise you to remove the card and visually inspect the connector, on both the motherboard and the graphic cards to see if there are any obvious signs of damage, and try a different card in the PCIe slot, and try the graphic card in another machine to see if the issue persists. 

Yours faithfully

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Cleaned my  pc lately, and i  observe that....no damage, tryed it in different friends machine, goes to x16 , but his pci-e is x16 2.0.

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Just now, devilgod81 said:

Cleaned my  pc lately, and i  observe that....no damage, tryed it in different friends machine, goes to x16 , but his pci-e is x16 2.0.

I doubt conventional PCI takes lane, that's delivered from the PCH, my last suggestion would be to reseat the CPU, one of the connections for the 16 lanes could be bad, and would not allow the full 16x bandwidth, not that you need the full 16x, 8x would be more than enough. It's possible the pin isn't making good contact

 

Yours faithfully

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Chieftec is one helluva POS PSU maker, youre putting your system at risk with that garbage.

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