Likely not all Z490 motherboard will support Rocket Lake-S processors

by Hilbert Hagedoorn on: 02/11/2021 10:41 AM | source: Smzdm (via Hardware.info) | 21 comment(s)

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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cucaulay malkin
Senior Member

Posts: 7201
Joined: 2020-08-03

#5886372 Posted on: 02/11/2021 05:07 PM

same boat here
10500 bought as a placeholder

dunno about rkl-s tho,if they're asking over 300 eur for a six core then no way in hell,10700KF is 300.
planned a sn850 drive alongside for os.check it out.r/w performance is outstanding.over 90mb/s 4k read
https://www.tweaktown.com/reviews/9664/wd-black-sn850-1tb-nvme-2-ssd/index.html

Fediuld
Senior Member

Posts: 767
Joined: 2016-10-04

#5886406 Posted on: 02/11/2021 07:09 PM

Oh crap Intel why you do this! i begin to wonder why do i still sticking with Intel this time around :mad:

fortunately i was aware that my Asrock z490m itx/ac doesn't have any bios announcement and when i saw Z490-g board second hand with good price i took it. but still.. WTH Intel (or Asrock ftm)??

Why are you surprised? 5 years now Intel does this some times twice in a single year (Z270-Z370 good example).
When we pointed that the Z490 is dead in the water before the year end, we were laughed at, some boasting all Z490 boards will be compatible and we talk nosense.

Wait and see there won't be pcie 4.0 support either but on handful of very expensive boards.

-Tj-
Senior Member

Posts: 17807
Joined: 2012-05-18

#5886445 Posted on: 02/11/2021 08:34 PM

same boat here
10500 bought as a placeholder

dunno about rkl-s tho,if they're asking over 300 eur for a six core then no way in hell,10700KF is 300.

probably max 260-270e, Im seeing 10600K for 206-230€ that's as much as I payed for my 10500 and it was kinda cheap.,and back then 10600k was ~250-270e

I think I'll get 11700kf, my mobo doesnt support igpu by default, so it would be ideal. ~330 -350e would be ok too

planned a sn850 drive alongside for os.check it out.r/w performance is outstanding.over 90mb/s 4k read
https://www.tweaktown.com/reviews/9664/wd-black-sn850-1tb-nvme-2-ssd/index.html

I was checking that drive too, looks very good! All reviews praise it, as long as it has cooling on it.

cucaulay malkin
Senior Member

Posts: 7201
Joined: 2020-08-03

#5886456 Posted on: 02/11/2021 09:30 PM

probably max 260-270e, Im seeing 10600K for 206-230€ that's as much as I payed for my 10500 and it was kinda cheap.,and back then 10600k was ~250-270e

I think I'll get 11700kf, my mobo doesnt support igpu by default, so it would be ideal. ~330 -350e would be ok too

I was checking that drive too, looks very good! All reviews praise it, as long as it has cooling on it.
no need for cooling if you're not gonna move lots of data back and forth.im only buying it for 4k r/w.
10600kf are selling for 190eur here,same as 10500 cost me in june.230 and you're getting a 10700f. 8/16 with 4.6G allcore and 4.8 single core. really,really nice.best value cpu by a mile.
i wanted an igpu,it comes in handy,but later i managed to buy a 1070 strix for a really good price and i wont sell it once my 3080 arrives,makes for a really nice backup card.

Silva
Senior Member

Posts: 1963
Joined: 2013-06-04

#5886476 Posted on: 02/11/2021 10:25 PM

People argue that Intel always switched socket to make sure no confusing buying motherboards. Well, what the frack is this now?
AM4 is a godly platform in my book, even if some motherboards lost some support along the way, it's an amazing socket.

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