Hey Guys, i have finally put my build together and it is running smooth, but i have a question about thermals as i have no idea what the lankan benchmark ahould be.

These are my current specs

Ryzen 9 5900x
32GB Corsair Vengeance Pro DDR4 16-18-18-36
Asus B550-F
Asus TUF RTX 3080
NZXT X53

At idle, My CPU is at around 42C and GPU is around 45C. Whilst playing Horizon Zero Dawn, CPU is at 80C and GPU is around 65C which is quite toasty.

I am not concerned with my GPU performance as i think the thermals are doing quite well at 90% utilization but i am not sure if i should worried about my CPU. I know that my CPU is rated up to an 80C temp but i am not sure if this is reasonable or not.

Also i am trying to check my CAS latency for RAM but i can't seem to interpret the CPU-Z reading. a screenshot is attached, would someone be able to let me know if it fits the advertised latency on the card. Fyi- i could not find a KIT so i bought two ram sticks with the identical spec.

Out Of Topic Bt Plz Consider Upgrading Ur Mother Board To A Higher END ONE (X570 Chipset)

I cannot advice on the RAM, but on the CPU, try undervolting. I had the same issue with my R5 3600 with the same AIO, hitting near 75 - 80. After undervolting AND applying an overclock of 4.5Ghz it never went above 60c.

But given that you have a 5900X, I expect the temps to be a bit high.

I'm sharing a message from Blu3Haze, where we went back and forth trying to figure it out for my PC

"..X53 is good too, pricey though! One of my friends used it with a 8600K and temps were pretty decent. 70°C is well below the limits for Ryzen.
AMD does overvolt the CPU even at stock settings, more so with PBO which I'm not that happy with and always tune it. Drops temps and power consumption. I'd expect you to stay in low 60s and under at all time if you tune for efficiency.
https://www.techpowerup.com/download/amd-ryzen-clock-tuner-ctr-1usmus/.."

Out Of Topic Bt Plz Consider Upgrading Ur Mother Board To A Higher END ONE (X570 Chipset)

When i did my research, i did not see any significant difference between a B550 and the X570. That is why i thought of going for a higher end B550 board like Asus ROG Strix B550-F

I cannot advice on the RAM, but on the CPU, try undervolting. I had the same issue with my R5 3600 with the same AIO, hitting near 75 - 80. After undervolting AND applying an overclock of 4.5Ghz it never went above 60c.

But given that you have a 5900X, I expect the temps to be a bit high.

Thank you, this is quite useful. let me do some additional reading and see what i can do.

I'm sharing a message from Blu3Haze, where we went back and forth trying to figure it out for my PC

"..X53 is good too, pricey though! One of my friends used it with a 8600K and temps were pretty decent. 70°C is well below the limits for Ryzen.
AMD does overvolt the CPU even at stock settings, more so with PBO which I'm not that happy with and always tune it. Drops temps and power consumption. I'd expect you to stay in low 60s and under at all time if you tune for efficiency.
https://www.techpowerup.com/download/amd-ryzen-clock-tuner-ctr-1usmus/.."

This is quite useful, i will read through and see what i can do. Did you run into any problems when you tried to undervolt.

At idle, My CPU is at around 42C and GPU is around 45C. Whilst playing Horizon Zero Dawn, CPU is at 80C and GPU is around 65C which is quite toasty.

Also i am trying to check my CAS latency for RAM but i can't seem to interpret the CPU-Z reading. a screenshot is attached, would someone be able to let me know if it fits the advertised latency on the card. Fyi- i could not find a KIT so i bought two ram sticks with the identical spec.

I think the temperature is normal for Ryzen 9 5900x as many people reporting the same. Especially if you live in hot areas it can be. As long as you have proper ventilation it should be okey. Just monitor if you get any shutdowns due to temperature warning. otherwise youre fine.

Regarding the RAM. check the current values on the BIOS. and also the SPD tab on the CPU Z. All rams should run at the same timing and frequency. only when you have mixed rams, system will choose the timing and freq of the lowest ram out of 4.

I would be worried if a 12 core CPU is below those temperatures. 
Enjoy the new system, if there are any temp issue it will shutdown safely, then you would know.

At idle, My CPU is at around 42C and GPU is around 45C. Whilst playing Horizon Zero Dawn, CPU is at 80C and GPU is around 65C which is quite toasty.

I dont think its normal if your playing in 1080p/1440p unless your running at ultra high on 4k, If thats not the case I'd check the cooler clearance.
Please update if you overcome this issue, as im rooting for the same spec if Intel 11th gen fails.

I am playing 1440p but on highest settings. what do you mean cooler clearance?

This is quite useful, i will read through and see what i can do. Did you run into any problems when you tried to undervolt.

Not at all. It saved a lot on power on thermals. I do not know whether the software I shared has been updated to work with 5 series, but it should be by now. And like some have said already, I'm certain you are well within the limits for a 5900X.

I am playing 1440p but on highest settings. what do you mean cooler clearance?

Try tightening the screws on the standoffs by a little.

This is quite useful, i will read through and see what i can do. Did you run into any problems when you tried to undervolt.

Nope, a stable undervolt will give you better or similar performance for less heat and power usage... I recommend you undervolt both your 3080 and 5900... My TUF 3080 is running at 62 degrees at full load and fan speed at 67%... also off topic check your PM