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Can single rank (1Rx8) and dual rank (2Rx8) ram be used together ?

NotSoGeeky
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Hey. I own an Asus ROG Gl552vx which comes with 8gb 2133mhz single rank CL15 ram. I want to upgrade to 16gb using another 8gb stick. The problem is that an exactly similar stick isn't available. The memory available in the market is 8gb 2133MHZ dual rank CL15. 

 

Can we use single rank and dual rank ram together without it causing any issues ? 

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Im using 1 8 gig stick which is Dual Rank
And 2 4gig sticks that are Single Rank
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And ive had zero issue in the 2+ years ive had my ram like that. 
(Slot 2-8 gig stick. Slot 3 and 4, 4 gig sticks) 
Ya might have issues with XMP. Maybe. Possibly. Most likely. 
Cause i do. But my ram runs at 2666 with and without it.

CPU:6600K | MB:Z170A PC MATE | RAM:Kingston HyperX Fury Black 24GB 2666MHz CL16 | GPU:ASUS TUF 3060Ti  | Case:Aerocool Strike-X One | Storage: 970 EVO 1TB | 870 QVO 1TB |Toshiba DT01ACA100 1TB | Seagate Barracuda 2TB (18k+ Real. Sectors) | PSU: MSI MPG A850GF 850W | Display: Asus TUF VG249Q1A | Dell SE2416H | Cooling: Liquid Freezer II 120mm

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I have a similar configuration in my laptop, no problems.

1x 2400 single rank built in

1x 2133 dual rank I recycled from my older laptop

 

Dual channel with this mismatched ram is still much better performance than the single stick was.

Main system: i9-7980XE, Asus X299 TUF mark 2, Noctua D15, Corsair Vengeance Pro 3200 3x 16GB 2R, RTX 3070, NZXT E850, GameMax Abyss, Samsung 980 Pro 2TB, Acer Predator XB241YU 24" 1440p 144Hz G-Sync + HP LP2475w 24" 1200p 60Hz wide gamut
Gaming laptop: Lenovo Legion 5, 5800H, RTX 3070, Kingston DDR4 3200C22 2x16GB 2Rx8, Kingston Fury Renegade 1TB + Crucial P1 1TB SSD, 165 Hz IPS 1080p G-Sync Compatible

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Less than perfect, better than incompatible...

I edit my posts more often than not

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