Z370 question and i9 9900k

[rayn4550]

I want to ask which Z370 motherboard can use RGB system fan and have two PCIE x16,and can i9-9900k use on Z370,thanks!

 

[Hellfire13]

Any z370 board should have those features excluding mITX form factor. But why go for a z370, when you can go for a z390 with same features and more.

 

[rayn4550]

sorry wrong button,doesnt some Z370 motherboard have 2 PCIE x16,but one of them dont work in x16 speed

 

[Hellfire13]

Usually, unless you are running SLI/Crossfire, you wont need more than 1 PCIex16 slot.

 

[rayn4550]

Yea,i want to try SLI so i need to have a motherboard which have two PCIE x16 running on full speed

 

[rayn4550]

other question,can a mATX motherboard fit in a ATX case :/ ？

 

[Hellfire13]

If you want 2 slots to work with x16 lanes, then none of the boards support that. As soon as you install the second card, the lanes will get divided. That is because, the board only has so many lanes in total. Usually it is 24 for the z series. Besides, SLI is not recommended any more. There are only a handful of games that support it nowadays.

mATX board is smaller than ATX, it will fit easily. But, not the other way around.

 

[karenjoly]

The difference between x8 and x16 is not noticeable for the reasons set out here

https://www.gamersnexus.net/guides/2488-pci-e-3-x8-vs-x16-performance-impact-on-gpus

You can get 2 x16 actual lanes slots on the x299 chipset . Look at the ASUS Prime x299 A.

 

[Hellfire13]

x299 is not compatible with 9900k. This discussion is relevant to the 9900k as mentioned in the subject line.

 

[karenjoly]

Of course but the op can get what he wants on another chipset so you should have told him that.
The x series will do nicely . He can look at the 9800x in particular or just go with the last series of x processors, the 7800x is also nice and performs at the very high end. You could tell him that as well.

 

[Hellfire13]

Of course but the op can get what he wants on another chipset so you should have told him that.
The x series will do nicely . He can look at the 9800x in particular or just go with the last series of x processors, the 7800x is also nice and performs at the very high end. You could tell him that as well.

I am not going to mislead a user about a crap platform and chipset that is priced doubly and has not sold even an iota of their flagship platform.
Since you have one does not mean it is the right thing to advise others. You have no idea what you are talking about.

 

[karenjoly]

I touched a nerve eh ? He wants 2 x 16 and you gave him x8 and x8. Duh.

 

[Hellfire13]

To get 2x16 you loose on performance and on top of that you pay more... https://cpu.userbenchmark.com/Compare/Intel-Core-i9-9900K-vs-Intel-Core-i7-9800X/4028vsm651256
Not to mention, tha 2x16 is not even worth it.

 

[rayn4550]

okay thanks guys,last question pls,So i choose Asus PRIME Z370-P,how many RGB port it have?(i cant choose Z390 cuase i buy a second hand Z370,but waht s new in Z390)