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CH7 Hero WI-FI M2 Disk running at x2 after upadte 2203

Undeadblade
Level 7

‎04-20-2019 02:33 AM - last edited on ‎03-06-2024 08:20 PM by Community Admin

Hey,

My problem started after flash BIOS to 2203 version. I can't set my M2 Disk Samsung SSD 970 EVO to work at x4 speed. Samsung Magician and AIDA64 shows it run at x2. Of course, i tested performance for this disk and i have exactly half performance (1757 MB/s on reads and writes) when earlier i have 3500 MB/s on read and 2500 MB/s on write. I tested every configuration on BIOS and i can't set it to x4. I didn't change slot to M2_2, all the time disk set in M2_1. Any have problem like me? Maybe with new AGESA modification they changes a PCI Lane setting?
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3 REPLIES 3

Baio73
Level 8

‎04-21-2019 01:25 AM

Undeadblade wrote:
Hey,

My problem started after flash BIOS to 2203 version. I can't set my M2 Disk Samsung SSD 970 EVO to work at x4 speed. Samsung Magician and AIDA64 shows it run at x2. Of course, i tested performance for this disk and i have exactly half performance (1757 MB/s on reads and writes) when earlier i have 3500 MB/s on read and 2500 MB/s on write. I tested every configuration on BIOS and i can't set it to x4. I didn't change slot to M2_2, all the time disk set in M2_1. Any have problem like me? Maybe with new AGESA modification they changes a PCI Lane setting?


Hi, just gave a try at BIOS 2203... my Samsung960 PRO is working properly @x4, according to CrystalDiskInfo.
On the other hand I cannot set RAM @3400/3600 anymore. Tried to flash back to 2103 and stiill they don't work. :mad:

Did you make any other change to your PC? F.E. a SLI/Crossfire or another PCIex card?

Baio
CASE Lian Li 011D XL CPU AMD Ryzen 7950X3D COOLER Corsair H150i Elite Capellix MOBO Asus ROG Strix X670E-A Gaming Wifi RAM 2x16Gb Corsair Dominator Titanium 6000 [CMP32GX5M2B6000Z30] PSU Asus Thor 1200P VGA Asus ROG Strix RX 6900XT DISPLAY LG 34GK950GF AUDIO Logitech G560 SDD NVMe WD Black SN850 4Tb INPUT Logitech Pro wireless + Powerplay + Corsair MM 700 RGB - Corsair K100
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SaLSouL
Level 10

‎04-24-2019 11:55 AM

Undeadblade wrote:
Hey,

My problem started after flash BIOS to 2203 version. I can't set my M2 Disk Samsung SSD 970 EVO to work at x4 speed. Samsung Magician and AIDA64 shows it run at x2. Of course, i tested performance for this disk and i have exactly half performance (1757 MB/s on reads and writes) when earlier i have 3500 MB/s on read and 2500 MB/s on write. I tested every configuration on BIOS and i can't set it to x4. I didn't change slot to M2_2, all the time disk set in M2_1. Any have problem like me? Maybe with new AGESA modification they changes a PCI Lane setting?



Check your PCIE power options in your power plan settings in windows.

I had my PCIE power set to moderate power saving and it clocked my main x16 slot down to x4 maybe worth a shot
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Infernoken
Level 8

‎05-03-2019 07:55 AM

Undeadblade wrote:
Hey,

My problem started after flash BIOS to 2203 version. I can't set my M2 Disk Samsung SSD 970 EVO to work at x4 speed. Samsung Magician and AIDA64 shows it run at x2. Of course, i tested performance for this disk and i have exactly half performance (1757 MB/s on reads and writes) when earlier i have 3500 MB/s on read and 2500 MB/s on write. I tested every configuration on BIOS and i can't set it to x4. I didn't change slot to M2_2, all the time disk set in M2_1. Any have problem like me? Maybe with new AGESA modification they changes a PCI Lane setting?


M2_1 is a direct connection to the chipset, so nothing should impact an x4 performance...?
Also see: https://rog.asus.com/forum/showthread.php?101950-Crosshair-VII-M-2-drives-steal-PCIE-bandwidth

Did you update the AMD drivers to the latest version as was indicated in the BIOS updates?
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