| Author | Message  Topic Search  Topic OptionsPost ReplyCreate New Topic Printable Version Translate Topic |
rangulicon  Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie  Joined: 28 Nov 2019 Status: Offline Points: 16 |  Post Options Post Reply Quote rangulicon Report Post  Thanks(0)  Quote  Reply  Topic: Aqua PCIe Lanes: CPU vs PCH Distribution Posted: 28 Nov 2019 at 1:04pm |
| Can anyone help in providing a full breakdown of how PCIe lanes for CPU and PCH are distributed among all slots and devices on the Aqua motherboard?It'd also be great to know how populating certain slots affects available lanes for other devices.The motherboard manual is not very helpful at describing any of this in detail for anything but the main PCIe slots. If we can compile this information here it will help other Aqua motherboard owners in the future. |
 |
Ray62 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie   Joined: 01 Jul 2018 Location: Germany, Berlin Status: Offline Points: 706 | Post Options Post Reply Quote Ray62 Report Post Thanks(1) Quote Reply Posted: 29 Nov 2019 at 6:29am |
| First, the X570 Aqua and the X570 Creator are the same (without regarding the cooling).As in nearly all X570 boards:CPU: PCIE1 PCIe 4.0 x16 with 16 lanes (8 lanes, if PCIE4 is used too)PCIE4 PCIe 4.0 x16 with 8 lanes First M2 slot with PCIe 4.0 4xPCH: PCIE6 PCIe 4.0 x16 with 4 lanesSecond M2 slot with PCIe 4.0 4x4 SATA portsAqua/Creator specific:* Via PCH->PCIe 2.0 Controller->HUB, the following connections share bandwidth via one PCIe 2.0 lane:PCIE2 PCIe 2.0 x1PCIE3 PCIe 2.0 x1PCIE5 PCIe 2.0 x14 SATA portsAll the other devices (USB, WiFi, NET, Audio) not regarded here.* This info is from here:https://www.tomshardware.com/reviews/asrock-x570-creator-motherboard |
| Asrock Fatal1ty X370 Professional Gaming OfflineUnder test:MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE |
|
| rangulicon Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 28 Nov 2019 Status: Offline Points: 16 | Post Options Post Reply Quote rangulicon Report Post Thanks(0) Quote Reply Posted: 30 Nov 2019 at 4:19am |
| Thank you for the info @Ray62. I've seen people report that other X570 based boards split multiple M.2 slots between CPU and PCH based lanes. It great to have confirmation that for the Creator and Aqua both M.2 slots are on the CPU based PCIe Lanes. |
|
| Ray62 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 01 Jul 2018 Location: Germany, Berlin Status: Offline Points: 706 | Post Options Post Reply Quote Ray62 Report Post Thanks(0) Quote Reply Posted: 30 Nov 2019 at 4:43am |
 rangulicon wrote:Thank you for the info @Ray62. I've seen people report that other X570 based boards split multiple M.2 slots between CPU and PCH based lanes. It great to have confirmation that for the Creator and Aqua both M.2 slots are on the CPU based PCIe Lanes. |
What confirmation???PCH: PCIE6 PCIe 4.0 x16 with 4 lanesSecond M2 slot with PCIe 4.0 4x4 SATA ports |
| Asrock Fatal1ty X370 Professional Gaming OfflineUnder test:MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE |
|
| rangulicon Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 28 Nov 2019 Status: Offline Points: 16 | Post Options Post Reply Quote rangulicon Report Post Thanks(0) Quote Reply Posted: 30 Nov 2019 at 7:43am |
| Apologies I misread what you wrote. So all x570 boards split the M.2 between CPU and PCH. Good to know. |
|
| rangulicon Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 28 Nov 2019 Status: Offline Points: 16 | Post Options Post Reply Quote rangulicon Report Post Thanks(0) Quote Reply Posted: 20 Dec 2019 at 3:11am |
Here is a Block Diagram I find gives the most info regarding how connections are distributed between the chipset and CPU PCIe lanes. |
|
| Ray62 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 01 Jul 2018 Location: Germany, Berlin Status: Offline Points: 706 | Post Options Post Reply Quote Ray62 Report Post Thanks(0) Quote Reply Posted: 20 Dec 2019 at 5:14am |
It would be nice to see those diagrams in all Asrock (and other vendors) mainboard manuals.I just wonder from which side this image (just an imgur link) is stolen...  And i got it: An new Aqua review @Anandtech:https://www.anandtech.com/show/14951/the-asrock-x570-aqua-motherboard-review-But sad like for all Aqua-Reviews, they also did not test it with a 3950X or at least with a 3900X for showing the real cooling muscles of this board. Isn't it allowed by Asrock?  |
| Asrock Fatal1ty X370 Professional Gaming OfflineUnder test:MSI X570_MEG_ACE | AMD Ryzen 9 3900X | Scythe Mugen5 | 2x16GB F4-3200C14D-32GTZ@3466 | ASUS GeForce GTX 1080 Ti FE |
|
Forum Home > Technical Support > AMD Motherboards 
New Posts 
FAQ 
Register 
Login 
Tweet