2. Will I run into problems with new RAM if I exceed the frequency recommended by the motherboard manufacturers? For example, going to 2133MHz when 1800MHz is recommended as the maximum.
First off I wouldn't worry about double or single side ram. You can read for days on the net all kinds of opinions on this subject. Their are ram sticks that are not physically made for a motherboard and they use a notch location to try and stop people from installing on the wrong board. Get the ram that is qualified for your motherboard and cpu. Can you go to a faster ram other than what is qualified for your system. Sure you can. From 1800 to 2130 I don't believe you will notice the difference. I'm running faster ram than my intel cpu call for. Intel specs are 800/1066 and I have 2000 O/C. I can't get it over 1600 because of the memory controller in the cpu. If I had to do it over I would not buy the 2000 O/C ram.
It would be nice if you could complete you ((My System Specs)). It will follow your every post. Look in the lower left corner of this post and tick on it.
My Computer
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home made Desktop
OS
Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
CPU
Intel i7-6800K @ 4.3
Motherboard
ASUS X-99 Deluxe II
Memory
Corsair Platinum 16 gig @2400
Graphics Card(s)
EVGA GTX 1070 OC
Monitor(s) Displays
Asus 27" LED LCD/VE278Q
Screen Resolution
1920-1080 or 1280-720 HDMI
Hard Drives
INTEL SSD 730-240 Gb Sata 3.0/
PSU
EVGA Platium 1200W
Case
Phanteks Luxe Tempered Glass 8 fans/ one radiator
Cooling
XSPC/ Water Cooled CPU
Keyboard
Das 4 Professional
Mouse
Logitech M705/MX Anywhere 2-S
Internet Speed
100 mbits
Antivirus
Microsoft Security Essentials/ Malwarebytes Premium 3.0/ SAS
Browser
I.E. 11 default/Firefox/ ISP Time Warner Cable/Spectrum
Other Info
LG BluRay Burner/
Sound system-KLipsch-THX/
Icy Dock ssd Hot Swap bays.
For the first question dual sided is dual channel memory or commonly referred to as "Dual in Memory Module" dimm. The old single sided memory was called simms. All memory now besides something like an SD card would be dual channel.
On the second question regarding memory speed if you install the type the board supports in case the board only accepts standard ram and you install performance memory as seen mostly with old boards the memory will simply run at the slower speed unless the memory clock is raised up to the max. Even then however you most likely only see the fastest speed supported.
If you should happen to install 1.9v memory on a board that takes 1.5v dimms the fastest memory speed supported will be backclocked down two speeds as it was found here when ordering the OCZ Gold 1.9v DDR3 1600 to end up with 1066 until raising the memory clock up to get only 1333.
On the new 7 Pro case the same 1600 memory went on a board that supports 1.5v 1333 memory and still sees 1600mhz when the clock was brought up to the max being only one speed faster memory used. You might see about 1800 or 1866mhz for the 2133 memory there however at best.
W7 Ultimate x64/W10 Pro x64/W11 Pro Triple Boot - Main PC W7 Remote PC Micro ATX W7 Pro x64/W11 Pro
CPU
AMD Phenom II X4 975 Deneb 3.6ghz - 965 2nd remote pc
Motherboard
Gigabyte GA-790XTA-UD4-Gigabyte GA-880GM-D2H remote pc
Memory
Kingston Hyper X DDR3 1600 1.5v 16gb - Hyper X Fury 8gb 2nd
Graphics Card(s)
MSI HD Radeon 5750 1gb - MSI HD Radeon 6450 on mini tower
Sound Card
Creative Labs X-Fi Xtreme Audio P - Realtek onooard 2nd case
Monitor(s) Displays
ASUS VW199T-P 19" HP 2082a Main-HP 2082a 20" remote pc
Screen Resolution
Asus 1440x900 - HP 1600x900
Hard Drives
WD Black 1TB HD per OS W7, W10, and pending W11 presently on 500gb OS Drive - Pending Triple 1TB HDs for Spanned Storage/backup volume
Single 2TB external USB enclosure, single 1TB System 7 Host/Boot drive, Pending 8TB external HD for system image b
PSU
Corsair 750TX - primary / Corsair CX600 - second
Case
Antec 900-2 - SSD compatible / NZXT Vulcan mini tower