I've already managed 4000mhz 1:1 IF, took quite a bit of effort and wasted time ultimately. Monitored that the CPU boosts more erratically than it normaly does. It's not unstable but it ramps the fans up and down for next to no perf gain. So just went back to 3800 and tighten the sub timings instead.

Not going to upgrade yet - some guy posted on Reddit that my board no longer has per-core Curve Optimizer enabled on the latest BIOS. Since I have that already set up and 24/7 stable, that is easily more important to me than 3800 RAM for now.

This post has been edited by yimingwuzere: Mar 8 2021, 06:49 PM

Per core CO is still available on my CH8 with AGESA 1.2.0.0.

My experience so far is that AGESA 1.2.0.0 (final, non beta) has been the best BIOS release for Zen 3 yet. I haven't had a single error for the last 35 days and counting, which is a first for Zen 3.

I don't doubt that it's the most stable (unless you have a RTX 3090 and a VR setup then you might get "blessed" with Bonchi's issue) - just that Asrock apparently omitted it from my motherboard's BIOS from what some posters said. Oh well... CI8 wasn't easily available, nor was it well priced to import from overseas when I was buying.

I don't have a 3090, but I do have a 3080 with a VR setup. No connectivity issues for me. Ironic enough nvidia drivers are the ones causing issues for VR instead lol.

Neither had any with the load of DACs and amps that I test on a weekly basis. Also have several arcade sticks and a simple racing rig too, all never had connectivity issues.

This post has been edited by SSJBen: Mar 9 2021, 01:19 PM

Hmmm.. i've just been browsing around but i sorta start to see shift from recommending a 5600x to a 5800x. Anyone know whats with this shift in recommendations for a mainly gaming build?

Huh? Who said so?

My opinion is that 5800x remains a stupid CPU because of its price being so close to 5900x. The latter also suffers less from temp hotspot, meaning better PBO and less irritating fan ramp fluctuations.

If you only need an 8 core, get a 10700k instead at this point or wait for RKL.

That was what I thought. I think i've just been browsing around a lot looking at other people builds, and sorta noticed there's a lot more 5800x than ya, know, 5600x or other ones

ppl recommend 5800x because easier availability than 5600x, and this suggestion is for ppl insisting on AMD system
plus 5900x price now is closer to 5950x old price

This post has been edited by General_Nic: Mar 9 2021, 02:48 PM

very late reply... but did you set the scalar to any value? what exactly are the settings you set in the pbo menu in general?

It is true that 5800x availability is more widespread than 5600x, that's probably the reason for the suggestion of it. But I still think that if anyone who wants just an 8c16t CPU, go for the 10700k instead.


Well 5800x has also risen to 5900x old price too. The 5950x is now also a RM4k CPU. 5900x can be had for RM3.1k, you're saving a measly RM600 for a 5800x...? Why?

5800x has the worst silicon quality if you want to play the lottery too. 8 cores 16 threads crammed into a single little chiplet, that's why the hottest reported Zen 3 SKU is the 5800x and NOT the 5950x.

your point is right, what you're asking is why would ppl recommend 5800x, and what I gave you were the reasons, doesn't mean the reasons must be right

I got my 5800x because I missed the period when 5900x was still at RM2.5k, followed by out of stock for a couple of months, but I already bought X570 mobo
I saw 5800x being sold at old msrp in January, so I just buy first think later, having a bad cpu is better than no cpu at all, thinking maybe future can get 5900x and sell off 5800x

CO at -15 all core, too lazy to do slowly set each core (given minimal returns)

edit: tweaks aren't remotely the best, but i am looking forward to degrading this chip and moving back to intel.

This post has been edited by oldKyoo: Mar 9 2021, 04:06 PM

I got a 5800x for about RM 2130 (slightly above its RM 2049 MSRP) as well back in late December when the 5900x was nowhere to be found for MSRP. Initially if you're comparing 5800x at RM 2049 to the 5900x at RM 2499 (was the MSRP 2449, 2459 or 2499, my memory fails me), then yes no way in hell I'd go for a 5800x, make so little sense even from a price point, we haven't even start talking about the temperature issues that were cropping up online specific to the 5800x.

Then I got the 5800x, installed it, used it and... pleasantly surprised. Cooled by an EK AIO 240, CP2077 load temps never breach 70c. Idles at 40-41c, and with my room A/C on, I've seen idles at 33c even. Most likely got a golden sample I guess.

Fair point. With prices on market fluctuating these days, it's difficult to compare just with MSRP alone.


Nice temps, definitely won the lottery there. No issues with USB connectivity, cold boot, or WHEA errors?

If you want lower temps and better performance:

1) Set Scalar to Auto (which will hopefully be OFF with Gigabyte nowadays)
2) Consider setting the power limits to stock, not that you gain much performance there anyways
3) Consider to use CoreCycler to do a curve. But before you start with that, test without it to make sure your boost clock override is actually stable
https://github.com/sp00n/corecycler

did u set any settings or it's auto turbo boost?

Nope bro, not at all, frequently eyeballed the event logs etc to be sure. Experienced some crashes the first 2-3 days, which was resolved by not using XMP and just dialing in my memory main timings. Klevv Cras XR 4000c19 kit (Hynix DJR) tuned at 3800c16 stable. X570 Tomahawk, still running on BIOS revision 1.40 from End-Oct 2020 (AGESA 1.1.0.0).

Everything concerning PBO/boost etc is left at Auto in BIOS. (X570 Tomahawk)

not sure mine has to do with settings or not
ran Prime95 test the other day, all core max 4.2ghz at 125w