Ryzen 9 7900x3d FCLK & Settings

Orodruin · Monday at 11:10 AM

Hello everyone;

My default settings are as follows.
I am using Ram Settings "EXPO Tweaked".

As far as I know, many people recommend setting FCLK to 2133. I have never tried this with AM5.
After manually setting FCLK to 2133, what voltage will I need to increase?

Since I have an Asus motherboard, I am using it with ENHANCEMENT selected from the PBO settings and the thermal limit is 80 degrees.

Zach_01 · 2024-12-25T09:01:39+0000

Orodruin said:
Hello everyone;

My default settings are as follows.
I am using Ram Settings "EXPO Tweaked".

View attachment 376854

View attachment 376855

As far as I know, many people recommend setting FCLK to 2133. I have never tried this with AM5.
After manually setting FCLK to 2133, what voltage will I need to increase?

Since I have an Asus motherboard, I am using it with ENHANCEMENT selected from the PBO settings and the thermal limit is 80 degrees.

Try FCLK at all speeds up to the max it can get.
1.289V SoC is already high. You should try lower voltage with any speed. I wouldn’t like it close to 1.3V for 24/7. More like 1.2 or lower.
There was a chance also that FCLK can OC better with low -er SoC voltage. Word going around says that FCLK does not like high SoC voltage.

Processor	AMD Ryzen 9 7900X3D
Motherboard	ASUS ROG Crosshair X670E Hero
Cooling	ASUS ROG Strix LC III 360
Memory	G.Skill 48GB(2x24) TZ5 Neo RGB EXPO 6400mhz CL32
Video Card(s)	ASUS TUF RTX4070TI SUPER
Storage	Adata XPG SX8200 Pro 2X2TB, Adata XPG SX8100 3X2TB,
Display(s)	Dell 34" Curved Gaming Monitor S3422DWG
Case	Corsair 5000X
Power Supply	Corsair RM1000x SHIFT 80 PLUS Gold
Mouse	Asus ROG Gladius II Core
Keyboard	Asus ROG Strix Scope

System Name	PC on since Aug 2019, 1st CPU R5 3600 + ASUS ROG RX580 8GB >> MSI Gaming X RX5700XT (Jan 2020)
Processor	Ryzen 9 5900X (July 2022), 200W PPT limit, 80C temp limit, CO -6-14, +50MHz (up to 5.0GHz)
Motherboard	Gigabyte X570 Aorus Pro (Rev1.0), BIOS F39b, AGESA V2 1.2.0.C
Cooling	Arctic Liquid Freezer II 420mm Rev7 (Jan 2024) with off-center mount for Ryzen, TIM: Kryonaut
Memory	2x16GB G.Skill Trident Z Neo GTZN (July 2022) 3667MT/s 1.42V CL16-16-16-16-32-48 1T, tRFC:280, B-die
Video Card(s)	Sapphire Nitro+ RX 7900XTX (Dec 2023) 314~467W (382W current) PowerLimit, 1060mV, Adrenalin v24.12.1
Storage	Samsung NVMe: 980Pro 1TB(OS 2022), 970Pro 512GB(2019) / SATA-III: 850Pro 1TB(2015) 860Evo 1TB(2020)
Display(s)	Dell Alienware AW3423DW 34" QD-OLED curved (1800R), 3440x1440 144Hz (max 175Hz) HDR400/1000, VRR on
Case	None... naked on desk
Audio Device(s)	Astro A50 headset
Power Supply	Corsair HX750i, ATX v2.4, 80+ Platinum, 93% (250~700W), modular, single/dual rail (switch)
Mouse	Logitech MX Master (Gen1)
Keyboard	Logitech G15 (Gen2) w/ LCDSirReal applet
Software	Windows 11 Home 64bit (v24H2, OSBuild 26100.2605), upgraded from Win10 to Win11 on Jan 2024

Ryzen 9 7900x3d FCLK & Settings

Orodruin

Zach_01