Asrock WRX90 RAM compatability with 128GB sticks?

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1

Hello, sorry for yet another topic where Threadripper does not boot to Bios…
New build with used TR 7995WX on Asrock WRX90 WS EVO with 128GB Samsung M321RAGA0B20-CWKBJ RAM.
After build, just simply does not boot to Bios (or not showing anything on screen) and gets stuck on “01” code.
Tried multiple GPUs, internal Display port, two PSU, have 4 sticks of RAM, tried all slots and all 4 RAM sticks one by one.
Tried reseating CPU (only once yet). Following previous threads, I tried unplugging the optional PSU connections and fed with as many as possible. With M.2, without.
The initial plan was to get Asus MB, which showed support for 128GB module, but for Asrock I see only 96GB max supported, and most of them are on 7.02 Bios FW, while my bord has 3.02 FW. And from what I understand, without booting to Bios I can not update even FW…

I can log in to the BMC, where it only raised more questions than answers. Under system info, it is showing 7965WX model and 4x 32GB Micron RAM (My guess some old boot from MB, though it should be new?). Given it is a used CPU, has a limited return window, and sadly no shop stocks Reg. DDR5 Rams in my country.

Under Post code log I find this, always the same: 9800 00b7 4600 000c 0c93 9000 0000 0000 0000 0000 0100 0000 5000 000c 0040 0000
0000 0d15 0100 9305 9391 9691 9696 0792 0000 0000 a015 a2a0 a0a0 a0a0 a0a0 05a3
4107 3d00 0001 0000 0000 0099 000c 0023 0199 0000 0000 0000 0000 d000 d300 be00
0000 b794 0000 0000 0cc8 5100 0255 c900 5a54 cd58 0000 0000 0000 0000 0000 0000
0000 0000 edeb 98ef f000 b713 0000 0c46 9300 000c 0090 0000 0000 0000 0000 0001
0000 0c50 4000 0000 0000 0000 0d15 0100 9305 9391 9691 9696 0792 0000 0000 a015
a2a0 a0a0 a0a0 a0a0 05a3 4107 3d00 0001 0000 0000 0099 000c 0023 0199 0000 0000
0000 0000 d000 d300 be00 0000 b794 0000 0000 0cc8 5100 0255 c900 5a54 cd58 0000
0000 0000 0000 0000 0000 0100 (and getting stuck at this 01, left overnight for 6 hours, no change).

Maybe anybody have suggestions on what I might be missing, or is it simply that Asrock does not support 128GB modules?

2

You can update the BIOS through BMC Web UI.
Take a look at section 3.12 and 3.12.5:

3

Thank you for this info, missed this capability. Though seems it did not manage successfully to update the FW.
Tried couple of times 4.02, and 5.01. Though took reasonable time, every time after finishing reloading and rebooting continued showing 3.02 FW version in BMC.
Ordered 64GB Samsung M321R8GA0BB0-CQK stick, hopefully, get it on Monday to try it out. Wanted to try different manufacturers, but sadly this was the only RAM in the QVL list with an exact match to the last letter.

4

I’ve got some Micron 128GB RAM ( MTC40F2047S1RC56BB1) in hand and the system can boot to OS with BIOS 5.01.

WRX90_WS_EVO_96core_128GBx8_5600
WRX90_WS_EVO_96core_128GBx8_56001920×1080 356 KB

The web UI kept showing 3.02 probably means the system didn’t boot to the stage where BMC can get BIOS info.

5

Thank you, Asrock gave 8.01 FW to try out. Sadly no improvement. Starting to doubt the CPU, which is a pitty.
I guess now waiting game for QVL RAM modules, and saw one store close by have in stock another Asrock WRX90, negotiating if they will allow me to try it out.