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Z390 FTW - Only Single-Channel RAM

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cldudley
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2019/06/01 05:20:18 (permalink)
Hi forum!
 
I just got my rig built up last night, and am having a bit of an issue. I have 64GiB DDR4 installed (G.SKILL F4-3200C16Q-64GVK) which is a 4-DIMM configuration.
 
I updated the mobo firmware to the latest (1.07) which enabled the one-channel that is working to use the XMP profiles and now we are running at 3200MHz, but still only 1 channel, half the memory.
 
Any ideas what is going on?
 
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    rjohnson11
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    Re: Z390 FTW - Only Single-Channel RAM 2019/06/01 05:45:42 (permalink)
    Disable the XMP profile and set up timings and DIMM voltage manually in the BIOs and see if that has any effect. 
     
    • Cas Latency, 16 Timing 16-18-18-38
    • Voltage 1.35V 

    AMD Ryzen 9 7950X,  Corsair Mp700 Pro M.2, 64GB Corsair Dominator Titanium DDR5  X670E Steel Legend, MSI RTX 4090 Associate Code: H5U80QBH6BH0AXF. I am NOT an employee of EVGA

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    cldudley
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    Re: Z390 FTW - Only Single-Channel RAM 2019/06/01 06:36:52 (permalink)
    Thank you for the fast reply!
     
    As it happens...and I'm a little embarrassed to admit it here, I didn't have the back rank of DIMMS seated all the way.
     
    I removed the memory and put it back, and we're in business. All 64GiB at 3200 using the XMP profile. 
     
    I have an EVGA SuperNova T2 PSU, the FTW mobo, an EVGA 2080 Ti XC2 and I'm loving all of it!
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    rjohnson11
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    Re: Z390 FTW - Only Single-Channel RAM 2019/06/01 07:21:34 (permalink)
    Outstanding. Some of the newer motherboards are a little stubborn and you have to listen for the 'click' when the module is seated properly. 

    AMD Ryzen 9 7950X,  Corsair Mp700 Pro M.2, 64GB Corsair Dominator Titanium DDR5  X670E Steel Legend, MSI RTX 4090 Associate Code: H5U80QBH6BH0AXF. I am NOT an employee of EVGA

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