The Official 5900X \5950X owners thread

marcosscriven · 30 Jun 2022 at 14:30

I have an Aorus b500i + Ryzen 5900X. I have the latest stable BIOS installed and completely reset the CMOS.

PBO is off, all limits are at stock. In Ryzen master I see that PPT 142W, TDC 95A, EDC140A.

While running Cinebench R23 all-core I see temps going no more than 75C, while Ryzen master tells me PPT, TDC, and EDC are all at 100%.

With this I only get 4050 to 4100MHz - which seems to be a lot lower than the 4400-4500MHz I see in reviews on stock settings. Sure, I can increase power/current limits, or undervolt, but first I want to make sure nothing's wrong.

Even with single core, I only get up to 4600MHz, whereas reviews seem to say 4900MHz should be achieveable at stock, especially as on single-threaded load my CPU is at 70C.

Could there be some default setting on my mobo that's holding back normal stock settings?

I have 3200MHz CL16 memory, but I don't think that should reduce boost?

marcosscriven · 30 Jun 2022 at 16:33

Further to my last post, I have since discovered something called "Power Reporting Deviation": https://www.hwinfo.com/forum/thread...er-reporting-deviation-metric-in-hwinfo.6456/

Apparently, if anything, BIOS manufactuers under report to bump performance, however in my case it's at 113% under full load (all-core Cinebench), which I assume accounts for my lower "stock" boosts. If I understand correctly, this means the CPU thinks it's hit 100% of the PPT, and so tails off the boosting freq.

If that's the case, then it seems my processor is not inefficient, and it's fine to just bump the limits manually?

This is a "2" stepping, by the way.

Andromeda1983 · 2 Jul 2022 at 17:39

I wonder what the chance is now of getting a B2 stepping from OCUK for the 5900X

Skynet5 · 2 Jul 2022 at 18:00

Andromeda1983 said:
I wonder what the chance is now of getting a B2 stepping from OCUK for the 5900X

High by now.

I'm thinking of getting one.

Andromeda1983 · 2 Jul 2022 at 18:06

Was thinking of leaving it to August, just before the 7000 series launch. Yes I know the 7000 series is likely to be awesome but at this moment in time its simply not worth it to do a full system upgrade. Considering the 5900X but only the B2 stepping because of the cooler temps...

Skynet5 · 2 Jul 2022 at 18:23

Andromeda1983 said:
Was thinking of leaving it to August, just before the 7000 series launch. Yes I know the 7000 series is likely to be awesome but at this moment in time its simply not worth it to do a full system upgrade. Considering the 5900X but only the B2 stepping because of the cooler temps...

Didn't the B2 turn up a while ago? I think before the price drop right?

Andromeda1983 · 2 Jul 2022 at 19:35

Yeah but they still had old stock of the B0's at the time

welshrat · 2 Jul 2022 at 19:37

Andromeda1983 said:
I wonder what the chance is now of getting a B2 stepping from OCUK for the 5900X

Bought mine a good few months ago. B2 stepping and never goes above 80 degrees (spikes) sits at around 64 in games. Very good chip and haven't even undervolted or anything. Just plugged in and go. Hits 4950 on most cores

Skynet5 · 2 Jul 2022 at 19:51

Yeah I'm tempted. I don't like the look of 5800x3d. Hot, and won't meant much more at 1440p over this.

I just want something I can hope improve my lows on.

Andromeda1983 · 2 Jul 2022 at 21:11

5800X3D is a great chip but its thermal transfer is pretty bad ( deliding can drop 10-15 oc )

pete910 · 3 Jul 2022 at 12:11

Andromeda1983 said:
5800X3D is a great chip but its thermal transfer is pretty bad ( deliding can drop 10-15 oc )

Thought they were soldered, Have a link to testing or whatever?

welshrat · 3 Jul 2022 at 12:36

pete910 said:
Thought they were soldered, Have a link to testing or whatever?

They are soldered but some have managed regardless. Check guru 3d

De-lidded AMD Ryzen 7 5800X3D Has Significant Thermal Improvements

The delidding procedure for AMD Ryzen 5000 processors is frequently regarded as superfluous, as these CPUs are already soldered to the heat spreaders, resulting in superior thermal conductivity. Other...

www.guru3d.com

Andromeda1983 · 3 Jul 2022 at 15:28

Delidded Ryzen 7 5800X3D CPU Runs 10 Degrees Celsius Cooler

No risk it, no biscuit.

www.tomshardware.com

Basically the translation is that if you have balls the size of london and are willing to risk killing your CPU stone dead for over 10oc lower temps, its possible!

Chuk_Chuk · 3 Jul 2022 at 16:18

Hi all I am still troubleshooting but I wanted to cross off one potential problem. my b450 tomahawk max won’t post after flashing the bios to the latest version.

I was flashing the bios in preparation to install the 5900x but the 3600x is still installed. I remembered that there was some chatter that if you flashed the bios to support the 5000 series you would lose support for all previous generations. Is this true? Or should my MB still boot with the 3600x installed.

welshrat · 3 Jul 2022 at 16:40

Pretty sure it was only the old Ryzen chips that lost support. Maybe the 2000 series but I think 3000 should be fine

Chuk_Chuk · 3 Jul 2022 at 16:45

I finally got it to post (I didn’t reset the cmos properly) but now the boot drive is locked so I working through that.

Edit: now sorted after booting it up with the windows img usb plugged in

Chuk_Chuk · 4 Jul 2022 at 15:16

I've got the PC setup with the 5900x and seems to be running fine. I'm very pleased with the boost to render times in blender compared to my 3600. Image below .

I have found that it will all core boost to 4.4GHZ in Blender but in Cinebench R23 it only boosts to 4.1GHz all cores (data from Ryzen Master). Does this behaviour sound right to anyone else?

Currently using a Cryorig R1 ultimate that I bought when I first built my PC 8 years ago :eek:

, I could only install the middle fan as the RAM gets in the way of the fan at the front but it seems to be keeping the temperature under control. (Side note the AM4 mounting mechanism is awful.) It hasn't passed 75C in render tests, though the poor fan is pegged at 100%.
I will keep an eye out for any good deals on the Arctic liquid freezer II 280mm.

3600 on top, 5900x on the bottom

welshrat · 4 Jul 2022 at 16:33

Chuk_Chuk said:
I've got the PC setup with the 5900x and seems to be running fine. I'm very pleased with the boost to render times in blender compared to my 3600. Image below .

I have found that it will all core boost to 4.4GHZ in Blender but in Cinebench R23 it only boosts to 4.1GHz all cores (data from Ryzen Master). Does this behaviour sound right to anyone else?

Currently using a Cryorig R1 ultimate that I bought when I first built my PC 8 years ago , I could only install the middle fan as the RAM gets in the way of the fan at the front but it seems to be keeping the temperature under control. (Side note the AM4 mounting mechanism is awful.) It hasn't passed 75C in render tests, though the poor fan is pegged at 100%.
I will keep an eye out for any good deals on the Arctic liquid freezer II 280mm.

3600 on top, 5900x on the bottom

Mine hits around that in R20, from reading I think enabling PBO and undervolting will help get higher boosts but to be honest I have no need. It's my daily driver and does everything I want it to and is as solid as a rock. No interest in chasing cinebench scores etc

cjgardens · 5 Aug 2022 at 19:02

If I got a 5900x and the budget was as tight as a nuns, what board would you get? A cheap used one would be good.

Thanks for any advice.

Chud_Jenny · 5 Aug 2022 at 19:06

cjgardens said:
If I got a 5900x and the budget was as tight as a nuns, what board would you get? A cheap used one would be good.

Thanks for any advice.

Would you want gen 4 PCI-e? Be silly not to really with a 5900x

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