Guide to AMD Ryzen AM5 Motherboard Chipsets

[hahahanoobs]

Ryzen 7000/9000 has 28 PCIe 5.0 lanes. 24 if you use USB 4.

The chipsets have 0.

Aware...
Perhaps this was meant for Amir?

 

[Hom3r]

4 out of those 28 CPU 5.0 lanes are linked to the chipset, not USB 4.
USB 4 uses PCIe 4.0 lanes on the chipset. You can disable them, if you don't want them.

Personally I would have enough in X870. A single GPU at up to 5.0 x16, USB DAC for Audio and then 2-3 M.2 SSDs if fine for me, running at 4.0 x4 is plenty however X870 supports 2 M.2s running at 5.0 x4.

I don't need 5.0 lanes for storage really. Real world difference between PCIe 4.0 and 5.0 SSDs are close to nothing. Mostly affects seq. read/write which is not important for loading times etc.

Also 5.0 SSDs are way more expensive and runs hotter. Some needs a massive heatsink not to throttle when you actually are peaking them. NAND is not what needs cooling, it is the chip on the SSD.

 

[mbk34]

Not sure how the "youngsters" think, but I'm really tired of the powerful hardware, just good enough to work is fine, so I guess the middle price market will be better. Most important is stable, 1000ms slower usually just a blink of an eye.

I agree with your sentiment in that most hardware is far more capable than I'll ever really need but 1000ms is 1000 milli seconds which is one whole second. I'm ancient but I'm fairly sure I'll notice that. The abbreviation for micro seconds is μs

 

[Biostud]

Most wifi are add in modules, so even if you buy 6E now you can upgrade it to 7 or a newer standard when it becomes available.

 

[mcnabney]

Is the chart right? I'm looking at Asrock's specs for all of their B850 boards and they show CPU slots as:
1 x PCIe 5.0 x16 (PCIE1), supports x16 mode
1 x PCIe 4.0 x4 (PCIE2), supports x4 mode

and storage as
1x Blazing M.2 off the CPU (which is PCIe 5.0)
1x Hyper M.2 off the chipset
1x Hyper M.2 off the chipset

I interpret that as one PCIe slot for the GPU at 5.0 and one M.2 at 5.0 and two M.2 at 4.0. The chart above says that B850 doesn't have PCIe 5.0 for the GPU.

 

[Amir Shoam]

Is the chart right? I'm looking at Asrock's specs for all of their B850 boards and they show CPU slots as:
1 x PCIe 5.0 x16 (PCIE1), supports x16 mode
1 x PCIe 4.0 x4 (PCIE2), supports x4 mode

and storage as
1x Blazing M.2 off the CPU (which is PCIe 5.0)
1x Hyper M.2 off the chipset
1x Hyper M.2 off the chipset

I interpret that as one PCIe slot for the GPU at 5.0 and one M.2 at 5.0 and two M.2 at 4.0. The chart above says that B850 doesn't have PCIe 5.0 for the GPU.

The chart is right. These boards could apparently be sold as B650E. Maybe Asrock thought "B850" sounded better.

 

[mcnabney]

The chart is right. These boards could apparently be sold as B650E. Maybe Asrock thought "B850" sounded better.

I don't think so. I just checked Asus and Gigabyte's specs for their B850 boards. Every one of them has PCIe 5.0x16 for the GPU and PCIe 5.0x4 for one M.2. The chart is wrong. I suspect that there is no B850E this generation and all of the B650E specs are included in B850.

 

[erickmendes]

what?

Today I woke up feeling an urge to add two 5.25" ATA Quantum Bigfoot 1.2GB in RAID 0 to my system. Can you handle that Mr. Promontory?

 

[JuanDegr]

Today I woke up feeling an urge to add two 5.25" ATA Quantum Bigfoot 1.2GB in RAID 0 to my system. Can you handle that Mr. Promontory?

Ah, so you’re one of those content creators the article talked about! Good to know they exist.

So good morning to you - live your day. As for me, I usually wake up with the urge to pee

 

[vekspec]

The chart is right. These boards could apparently be sold as B650E. Maybe Asrock thought "B850" sounded better.

I don’t think it’s completely clear. If you look at the AM5 Motherboard spreadsheet, also by looking at the specs from the website itself, literally every B850 has PCIE 5 for gpu except for one Asrock budget matx board and a few boards from non-mainstream manufacturers (like Maxsun). All the boards from Gigabyte, MSI, Asus and Asrock (except for the aforementioned matx budget board) as PCIE 5.0. So don’t think it’s correct to label GPU slot as definitive PCIE 4 “only”

 

[vekspec]

I don't think so. I just checked Asus and Gigabyte's specs for their B850 boards. Every one of them has PCIe 5.0x16 for the GPU and PCIe 5.0x4 for one M.2. The chart is wrong. I suspect that there is no B850E this generation and all of the B650E specs are included in B850.

I noticed this two and it’s only here it’s not correct.