Intel Motherboards - ASRock x299 Taichi missing RAM slots

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ASRock x299 Taichi missing RAM slots

Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=6754
Printed Date: 01 Aug 2025 at 5:36am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: ASRock x299 Taichi missing RAM slots

Posted By: Thejtm
Subject: ASRock x299 Taichi missing RAM slots
Date Posted: 29 Nov 2017 at 3:37pm

" rel="nofollow - I recently purchased a X299 Taichi and am having a major technical issue.

The C1 and C2 slots both are not detected in the BIOS.

I have 4 16GB memory sticks. The model of the 64GB kit was: F4-3200C14Q-64GTZR

I have the configuration as follows:

B1, A1 CPU C1, D1. When I boot, it detects only 3 sticks (not C1) and says Triple Channel. However when I go to tweak the XMP profile, it sees all 4 memory sticks.

I tried swapping around the sticks. C1 still is not detected on the main BIOS screen.
I tried moving the stick to C2, no detection of C2, but seen in XMP tweak tool.
I tried A1, B1, D1, and D2. Detects all 4, but only has Triple Channel as expected.
I tried just A1 and B1, that works and is Dual Channel as expected.
I tried reseating the CPU. No change.
I reset the CMOS after each memory change.
I have the latest non-beta (1.60) BIOS.
I tried blowing the C1 and C2 slots. No change.
The memory is RGB. All sticks light up even in C1 and C2.
I tried upping the voltage by switching to the XMP profile. No change.
I tried A1, B1, C1. Dual Channel. C1 isn't seen.

I'm about to return this board. Is there anything else I can try? What would cause those slots to not be detected in the BIOS, but the tweak tool in the DRAM section of the BIOS sees them fine?

Replies:

Posted By: Thejtm
Date Posted: 30 Nov 2017 at 2:53am

My CPU is Core i7 7820X.

Each memory stick is sequential and is model: F4-3200C14Q-64GTZR

Posted By: beditheory
Date Posted: 14 Dec 2017 at 3:07pm

" rel="nofollow - Hey, I have a similar issue where ram in the C1 slot is not showing up. Did you finally get your problem fixed? Was it just RMAing the board?

Posted By: Thejtm
Date Posted: 15 Dec 2017 at 2:14am

I had to RMA the board and the next one I got worked fine. Took about a week through my vendor.

Posted By: beditheory
Date Posted: 15 Dec 2017 at 10:30am

Wow that does suck. Well, thanks for the update. I guess I will be RMAing my board again. Such a weird issue. Since XMP picks it up.