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Windows 10 stops displaying on PCIE Gen 3, works on PCIE Gen 2.

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Posted · Original PosterOP

When the PCIEX16_1 slot on my motherboard is set to "Auto" or "Gen 3", Windows begins to load and quickly goes black. When I set the slot to Gen 2, it works perfectly. I am trying to decide if I need to replace one of my components, and determine which one.


Operating System: Microsoft Windows 10 Home 10.0.18363 x64

Motherboard: Asus ROG Strix B450-F Gaming

CPU: Ryzen 5 2600

BIOs version: 3103


RAM: G.Skill Ripjaw 5 16GB (8x2) 3200 DDR4 (F4-3200C16-8GVKB)

Storage: Silicon Power 512GB NVMe M.2 PCIe Gen3

PSU: EVGA B3 750 W 80+ Bronze



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1 minute ago, Carlincf said:

Asus ROG Strix B450-F Gaming

I'd try a BIOS update (if you haven't already). I had a similar (but opposite) problem with my Strix B350-F board where it wouldn't POST without a 3.0 GPU that was fixed by a BIOS update.


Otherwise, (and generally I find this advice pointless, but let's try it) have you reinserted the GPU? Maybe a quick swipe over the contacts with some rubbing alcohol to clean them?

Main System (Byarlant) Ryzen 5 1600X | Asus B350-F Strix | Corsair H80i V2 | 16GB G.Skill DDR4 3200MHz CAS-14 | XFX RX 5600 XT THICC II | Samsung 960 PRO 512GB / Samsung 970 EVO 500GB / Seagate 7200RPM 3TB | Corsair CX650M | Mellanox ConnectX-2 10G NIC | Anidees AI-07BW Case | Dell U3415W Monitor | Microsoft Modern Keyboard


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Media Center/Video Capture (Jesta) Core i7-2600 | Asus H77M-PRO | Stock Cooler | 8GB No-name DDR3 | EVGA GTX750Ti SC | Sandisk UltraII SSD 64GB / Seagate 1.5TB HDD | Corsair CX450M | Hauppauge ImpactVCB-PCIe | Syba USB3.1 Gen 2 Card | LG UH12NS30 BD-ROM | Silverstone Sugo SG-11 Case


Laptop (Narrative) Lenovo Flex 5 81X20005US | Ryzen 5 4500U | 16GB RAM (soldered) | Vega 6 Graphics | UMIS 256GB NVMe SSD | (all-around awesome machine)

Laptop (Rozen-ZuluSony VAIO VPCF13WFX | Core i7-740QM | 8GB Patriot DDR3 | GT 425M | Kingston 120GB SSD | Blu-ray Drive | (lived a good life, retired with honor)


Tablet (---): Samsung Galaxy Tab A 8" (crosses fingers)
Tablet (ReGZAsus T102HA (BIOS clock doesn't tick, loses time when sleep/off) (I kill tablets with disturbing regularity)

Tablet (UnicornSurface Pro 2 (battery will reset total capacity to current charge, leading Windows to think it's always 100% charged until it dies)

Tablet (LotoDell Venue 8 Pro (screen discoloration issues, wouldn't update to Windows 10)

Tablet: iPad 2 16GB (WiFi died, basically useless after that)


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Posted · Original PosterOP

If it helps anybody, I uninstalled the NVIDIA drivers with DDU. When the PC booted using the onboard graphics, GPU-Z identified the board as supporting PCIE3. Once I installed the drivers, it went back to PCIE2 and the behavior returned.

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