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Likely not all Z490 motherboard will support Rocket Lake-S processors
Admittedly, this is getting a little confusing, isn't it? Earlier this week you have been able to read here that Intel will not support H410 and B460 motherboards for their eleventh-generation desktop processors. However, it now seems that several Z490 motherboards won't get compatible either.
New knowledge turned up in a Chinese forum, with pretty distinct details explained as to why that is. First off, the chipset, the bios of the Z490 motherboard determine which processors are supported. If the SKU is not recognized, the system cannot boot. However, if the power delivery does not meet requirements, a BIOS update simply might not get supported for Rockert Lake-S.
The information is this; According to user 民 绘 边 怪, author of the post, Intel recently changed Rocket Lake's power supply design requirements. The diagram listed below indicates that the VCCIO voltage (Processor Power for I/O it is the voltage for the integrated memory controller as well as the PCI-E controllers). On a Z590 board this is divided into three parts: VVCIO_0, 1, and 2. B460 boards only use VCCIO_0. Also, the operation of the system agent voltage (VCCSA) has been adjusted. These two combined are the reason why Rocket Lake is not supported by certain chipsets.
民 绘 边 怪, mentions that not all Z490 motherboards will be compatible with the new generation of Intel chips. Why that precisely is is not clearly explained, but given what we just told you this has to be related to VCCIO power delivery not being sufficient enough and not matching the requirements. At least the following Z490 boards are mentioned:
- MSI Z490 S01
- MSI Z490M S01
- ASRock Z490 Phantom Gaming 4 (all variants)
- ASRock Z490 Pro4
- ASRock Z490M Pro4
- ASRock Z490M-ITX / ac
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Joined: 2017-02-15
Just had a co-worker build a machine based around x570 / 5950x, his old machine was a 7980xe @ 4.2ghz or so, x299 chip set.
AMAZING difference, some 50% faster or better in most scenarios, goes through video work and games too, very fast (this is CPU improvements, not GPU improvements which should be obvious).
He's REALLY happy with it, too, and he even says one of his NVME Samsung drives went from <100mb/s performance to 400+mb/s performance in one of the benchmarks (I forget which one, but the performance difference likely was due to intel security patches galore) with this upgrade.
He's really really really happy and he's gotten the 5950x to an all-core 4.5ghz on really low volts. The machine could go higher but he likes it SILENT, as I do mine also.
His only complaint is now that part of his house is cold and he has to install a small heater after running intel for so many years.
He used Trident Z Royal memory and an Asus Crosshair Hero Dark x570 motherboard for what it's worth, and was one of the lucky few managing to find an RTX 3090.
On my end I was actually shocked how much better it was than his old machine, but I am happy he is just as impressed with his machine, just as I still am with my 3950x / Asus TUF x570 wifi/plus board.
There is not a day that goes by that I will ever even think of regretting this 3950x purchase, not even CLOSE.
His machine is silently liquid cooled, mine is air cooled almost silently and makes much less noise than my old 4790k machine with a Noctua NH-D15S on this.
I didn't like PCI-E lane-juggling acts on my Z97, nor the extreme amount of heat put out, nor the lack of available processor upgrades for the Haswell system. That is why I got AMD this time.
Work during the day and gaming at night, and it doesn't flinch in either department... This is one of the first machines I built in a while that literally has no short-comings, considering the price paid.
The only time I hear this kick up is if I fully load all cores heavily, or if I run BeamNG Drive and spawn 20+ vehicles in 'traffic' mode in my Los Injurus City map mod.
That said, if you just want to game on it, and don't need it to work; either AMD or Intel are both very good options if you buy the latest or last-gen stuff at a good price (or at-least not over MSRP). Find what you can and just get it, provided it'll have enough cores to make you (and your software) happy. A 3700x or 9900k, for what it's worth, would make 95% of gamers quite happy.