12-03-2018 12:25 AM
12-03-2018 05:14 AM
12-03-2018 05:33 AM
12-03-2018 09:09 AM
12-03-2018 10:25 AM
Bought a new system with the below specs:
CPU: AMD Ryzen 2700X
Mobo: Asus ROG CROSSHAIR VII HERO WIFI
RAM: G.Skill F4-3200C14D-16GFX
SSD: Samsung 970 EVO 2TB NVM
GPU: GTX 1060 6GB
and have had a few RAM issues, which I have troubleshooted and come to the conclusion it's an issue with the A2 DIMM slot on the CH7. I've seen a lot of threads on here and across the internet with similar problems, but I dont think most have troubleshooted to the point where they have realised it's due to the A2 DIMM slot. Looks like this may be a endemic issue with the CH7.
Basically the issue is as follow.
On 0804 firmware or earlier:
RAM in A2 slot is not recognised by Ch7 in the total RAM, eg 2x 8gb only shows 8gb total ram. But if I go to the list of DIMM slots in the BIOS, it shows the second RAM stick in the A1 slot rather than the A2 slot where it's installed. In windows though, the 16GB is recognised. Moving the two RAM sticks to any other DIMM slots and everything shows correctly in BIOS.
On 1002 & 1103 BIOS:
having a RAM stick in the A2 DIMM slot produces 0d Q code and motherboard doesnt post. Having RAM sticks in any other DIMM slots and the motherboard posts successfully.
I have seen a lot of posts about both the above scenarios, which are both due to the A2 DIMM slot not functioning correctly, it just depends what firmware you have as to which way the issue presents itself.
Under any of these firmware, I cant go beyond the default 2400mhz RAM speed, most likely related to the above.
Not sure what to do now, I guess I'll return the MB but seeing how common this issue seems to be, it makes me think I should return it and buy a different model MB rather than the CH7.
12-03-2018 11:14 AM
12-05-2018 10:54 AM
12-05-2018 11:05 AM
12-14-2018 10:22 PM
12-15-2018 02:06 AM
Received motherboard back and now Q-code 24 with black screen. No LED lights under q-code readout.