how to switch x8 to x16

gibin00 · Jan 19, 2024

Hy guys!
I would like to switch the bus from x8 to x16.
If the graphics card is physically installed in an x16 slot on the motherboard, but the system recognizes it as x8,.
My pc: amd ryzen 7 5800x3D
motherboard:ASUS B550 PRIME PLUS
Videocard: GeForce RTX™ 4060 EAGLE OC 8G

Thank you

DaemonForce · Jan 19, 2024

No. Get another card that features full x16 mode.

XpanD · Jan 19, 2024

To add to the above: Note that this card probably wouldn't get any real benefit from having an x16 link anyways, x8 at 4.0 speeds should be plenty of bandwidth. No need to worry there.

(one thing that I would recommend would be to hit the question mark icon next to the Bus Interface field, to see if it scales up to 4.0 under load -- if it's actually stuck at 2.0 that would be an issue)

arbiter · Jan 19, 2024

XpanD said:
To add to the above: Note that this card probably wouldn't get any real benefit from having an x16 link anyways, x8 at 4.0 speeds should be plenty of bandwidth. No need to worry there.

add more as this site seems to always do with newest cards and test pci-express scaling using a 4090 it only lost 3% going from pcie 4.0 16x to 8x. That is a card that is far more stressful on pcie then a 4060 could dream to be.

NVIDIA GeForce RTX 4090 PCI-Express Scaling

The new NVIDIA GeForce RTX 4090 is a graphics card powerhouse, but what happens when you run it on a PCI-Express 4.0 x8 bus? In our mini-review we've also tested various PCI-Express 3.0, 2.0 and 1.1 configs to get a feel for how FPS scales with bandwidth.

www.techpowerup.com

las · Jan 19, 2024

It won't matter, PCIe 4.0 x8 has the same bandwidth as PCIe 3.0 x16, you will get full GPU performance at x8

AMD did this on several cards as well.

Aquinus · Jan 19, 2024

gibin00 said:
If the graphics card is physically installed in an x16 slot on the motherboard, but the system recognizes it as x8,.

gibin00 said:
Videocard: GeForce RTX™ 4060 EAGLE OC 8G

Then buy a GPU that actually supports 16 PCIe lanes.

KedsDead · Jan 19, 2024

That 4060 does not need x16 lanes of pcie 4.0. I have a RX6900XT on an old x470 board running on pcie 3.0 and I get full performance out of it.

Kapone33 · Jan 19, 2024

The physical limit of your card is x8. As such you will see no performance loss. Pcie 4x16, however is much faster (in theory) than x8.

ir_cow · Jan 19, 2024

You will get zero benefit from going to 16x gen 4 with a RTX 4060. No extra fps... Nothing

P4-630 · Jan 19, 2024

RMA!

j/k..

It should run fine as is or get a more powerful GPU.

Processor	AMD Ryzen 5 5600G
Case	NX
Mouse	Razer Viper 8khz,
Keyboard	Rapoo

System Name	DevKit
Processor	AMD Ryzen 5 3600 ↗4.0GHz
Motherboard	Asus TUF Gaming X570-Plus WiFi
Cooling	Koolance CPU-300-H06, Koolance GPU-180-L06, SC800 Pump
Memory	4x16GB Ballistix 3200MT/s ↗3800
Video Card(s)	PowerColor RX 580 Red Devil 8GB ↗1380MHz ↘1105mV, PowerColor RX 7900 XT Hellhound 20GB
Storage	240GB Corsair MP510, 120GB KingDian S280
Display(s)	Nixeus VUE-24 (1080p144)
Case	Koolance PC2-601BLW + Koolance EHX1020CUV Radiator Kit
Audio Device(s)	Oculus CV-1
Power Supply	Antec Earthwatts EA-750 Semi-Modular
Mouse	Easterntimes Tech X-08, Zelotes C-12
Keyboard	Logitech 106-key, Romoral 15-Key Macro, Royal Kludge RK84
VR HMD	Oculus CV-1
Software	Windows 10 Pro Workstation, VMware Workstation 16 Pro, MS SQL Server 2016, Fan Control v120, Blender
Benchmark Scores	Cinebench R15: 1590cb Cinebench R20: 3530cb (7.83x451cb) CPU-Z 17.01.64: 481.2/3896.8 VRMark: 8009

Processor	AMD Ryzen 7 5800X3D
Motherboard	ASRock Fatal1ty X370 Professional Gaming
Cooling	Noctua NH-D15 SE-AM4
Memory	G.Skill Trident Z F4-3200C14D-32GTZ
Video Card(s)	Inno3D RTX 4080 16GB X3
Power Supply	Corsair RM1000x (2021)

Processor	i7-13700k
Motherboard	Asus Tuf Gaming z790-plus
Cooling	Coolermaster Hyper 212 RGB
Memory	Corsair Vengeance RGB 32GB DDR5 7000mhz
Video Card(s)	Asus Dual Geforce RTX 4070 Super ( 2800mhz @ 1.0volt, ~60mhz overlock -.1volts)
Storage	1x Samsung 980 Pro PCIe4 NVme, 2x Samsung 1tb 850evo SSD, 3x WD drives, 2 seagate
Display(s)	Acer Predator XB273u 27inch IPS G-Sync 165hz
Audio Device(s)	Logitech Z906 5.1
Power Supply	Corsair RMx Series RM850x (OCZ Z series PSU retired after 13 years of service)
Mouse	Logitech G502 hero
Keyboard	Logitech G710+

System Name	Meh
Processor	7800X3D
Motherboard	MSI X670E Tomahawk
Cooling	Thermalright Phantom Spirit
Memory	32GB G.Skill @ 6000/CL30
Video Card(s)	Gainward RTX 4090 Phantom / Undervolt + OC
Storage	Samsung 990 Pro 2TB + WD SN850X 1TB + 64TB NAS/Server
Display(s)	27" 1440p IPS @ 360 Hz + 32" 4K/UHD QD-OLED @ 240 Hz + 77" 4K/UHD QD-OLED @ 144 Hz VRR
Case	Fractal Design North XL
Audio Device(s)	FiiO DAC
Power Supply	Corsair RM1000x / Native 12VHPWR
Mouse	Logitech G Pro Wireless Superlight + Razer Deathadder V3 Pro
Keyboard	Corsair K60 Pro / MX Low Profile Speed
Software	Windows 10 Pro x64

how to switch x8 to x16

gibin00

Attachments

DaemonForce

XpanD

arbiter

NVIDIA GeForce RTX 4090 PCI-Express Scaling

las

Aquinus

Resident Wat-man

KedsDead

Kapone33

ir_cow

P4-630

System Name	Apollo
Processor	Intel Core i9 9880H
Motherboard	Some proprietary Apple thing.
Memory	64GB DDR4-2667
Video Card(s)	AMD Radeon Pro 5600M, 8GB HBM2
Storage	1TB Apple NVMe, 2TB external SSD, 4TB external HDD for backup.
Display(s)	32" Dell UHD, 27" LG UHD, 28" LG 5k
Case	MacBook Pro (16", 2019)
Audio Device(s)	AirPods Pro, Sennheiser HD 380s w/ FIIO Alpen 2, or Logitech 2.1 Speakers
Power Supply	Display or Thunderbolt 4 Hub
Mouse	Logitech G502
Keyboard	Logitech G915, GL Clicky
Software	MacOS 15.3.1

System Name	Keds
Processor	5600X3D
Motherboard	Gigabyte X470 AORUS ULTRA GAMING
Cooling	Corsair H100i
Memory	32 GB Team Force DDR4 3200 CL16
Video Card(s)	Power Color RX 7900 XT Red Devil
Storage	2x 1TB SSD / NVME
Display(s)	AOpen 27in 1440p 170hz (27HC5UR)
Case	Modified Corsair 540 Air
Audio Device(s)	Logitech G35 / Corsair HS80
Power Supply	EVGA 850GQ
Mouse	Corsair M65
Keyboard	Corsair Strafe Silent
Software	Win 11 Home (Modded)
Benchmark Scores	It will beat a snail in a down hill race.

System Name	Best AMD Computer
Processor	AMD 7900X3D
Motherboard	Asus X670E E Strix
Cooling	In Win SR36
Memory	GSKILL DDR5 32GB 5200 30
Video Card(s)	Sapphire Pulse 7900XT (Watercooled)
Storage	Corsair MP 700, Seagate 530 2Tb, Adata SX8200 2TBx2, Kingston 2 TBx2, Micron 8 TB, WD AN 1500
Display(s)	GIGABYTE FV43U
Case	Corsair 7000D Airflow
Audio Device(s)	Corsair Void Pro, Logitch Z523 5.1
Power Supply	Deepcool 1000M
Mouse	Logitech g7 gaming mouse
Keyboard	Logitech G510
Software	Windows 11 Pro 64 Steam. GOG, Uplay, Origin
Benchmark Scores	Firestrike: 46183 Time Spy: 25121

System Name	AlderLake
Processor	Intel i7 12700K P-Cores @ 5Ghz
Motherboard	Gigabyte Z690 Aorus Master
Cooling	Noctua NH-U12A 2 fans + Thermal Grizzly Kryonaut Extreme + 5 case fans
Memory	32GB DDR5 Corsair Dominator Platinum RGB 6000MT/s CL36
Video Card(s)	MSI RTX 2070 Super Gaming X Trio
Storage	Samsung 980 Pro 1TB + 970 Evo 500GB + 850 Pro 512GB + 860 Evo 1TB x2
Display(s)	23.8" Dell S2417DG 165Hz G-Sync 1440p
Case	Be quiet! Silent Base 600 - Window
Audio Device(s)	Panasonic SA-PMX94 / Realtek onboard + B&O speaker system / Harman Kardon Go + Play / Logitech G533
Power Supply	Seasonic Focus Plus Gold 750W
Mouse	Logitech MX Anywhere 2 Laser wireless
Keyboard	RAPOO E9270P Black 5GHz wireless
Software	Windows 11
Benchmark Scores	Cinebench R23 (Single Core) 1936 @ stock Cinebench R23 (Multi Core) 23006 @ stock