DDR5 Configurations and Quad-DIMM Limitations

This video discusses what to expect when using DDR5 Memory Limitations when Using Four (4) DIMM in a Dual-Channel Motherboard.. Thank you for watching.

Video Time Codes for this Video (click to skip directly to a desired section of the Video)
0:00 Introduction to the Limitations of a DDR5 Quad-DIMM System
2:59 Using two 32gb DDR5 DIMMS, or 64gb, without XMP enabled
3:65 Using two 32gb DDR5 DIMMS, or 64gb, with XMP enabled
5:21 Using four 32gb DDR5 DIMMS, or 128gb, without XMP enabled
6:02 Clearing the BIOS CMOS on a Standard PC Motherboard
6:37 Using four 32gb DDR5 DIMMS, or 128gb, with XMP enabled
12:25 Using two 48gb DDR5 DIMMS, or 96gb, without XMP enabled
14:06 Using two 48gb DDR5 DIMMS, or 96gb, with XMP enabled
16:22 Conclusion of the Limitations of a DDR5 Quad-DIMM System

G.SKILL Ripjaws S5 Series (Intel XMP 3.0) DDR5 RAM 64GB (2x32GB) 5600MT/s CL30-36-36-89 1.25V Desktop Computer Memory UDIMM - Matte Black (F5-5600J3036D32GA2-RS5K)

G.SKILL Trident Z5 RGB Series (Intel XMP 3.0) DDR5 RAM 96GB (2x48GB) 6400MT/s CL32-39-39-102 1.35V Desktop Computer Memory UDIMM - Matte Black (F5-6400J3239F48GX2-TZ5RK)

ASUS ProArt Z790-Creator WiFi 6E LGA 1700(Intel 14th,13th&12th Gen) ATX content creator motherboard(PCIe 5.0,DDR5,2X Thunderbolt 4,10G&2.5G LAN,4xM.2/NVMe SSD,front panel USB 3.2 Gen2x2 Type-C)

5 pcs computer casemini speakers,PC internal BIOS mini plug buzzer computer motherboard buzzer alarm

Please consider subscribing to my Channel, and hitting ‘Like’, if you find this video useful. I will endeavor to answer any and all questions posted for any of my videos as quickly as I possibly can.

#DDR5Memory #DDR5Limitations #PE4Doers

[GameTechReviews]

4-DIMM (2DPC) 2 rank at speeds of 4400-4800MT/s is the upper limit on what is achievable on Intel's current platform. Anything beyond that becomes unstable without significant manual changes in the UEFI. Another thing to note, if mixing different RAM kits, it's best to isolate them to separate memory channels to account for micro-differences between batch manufacturing. Currently if someone wants to run 4-DIMM for the aesthetics, the AMD X870E can handle 2DPC 1R at 6000MT/s. I have recent videos showcasing this.

[kevinnapier]

I have two sets of the 96, so 192. Mine will not run with the XMP turned on. My motherboard is the proart z790. ALOT of freezing up.

[smamas]

What about 0D and led RAM error on my new x870e with 9800x3d on every restart, only on restarts, i have to shutdown the pc in order to work

[kanetechnical]

Why do you clear the BIO each time when you reloading memory sticks?

[SaccoBelmonte]

That is a known issue with DDR4 and DDR5. The more RAM (dimms) you put the slower it will go. This might change on the upcoming AMD MOBOs and upcoming CPUs (I know you're on an intel platform). It depends on the CPUs integrated memory controller (lottery) and MOBO topology. As you found, the safest bet is 2 dimms for a total of 96GB.

[timothyburke]

Personally when building Asus AM5 platforms I noticed the memory training took longer every boot when enabling EXPO (XMP for AMD). Played with the memory timings manually and same issue. Stability was a more pressing issue and decided to leave timings on default without EXPO. Something with the Asus memory training routine at least on AM5.

[FernandoAMarroquin]

Very good. I learn something new. what if we put four units of 48GB each?

[videocruzer]

you can also right click the task bar, click task manager, performance tab, then memory tab, and it will show you the speed of your ram in MT/s. anything else under this performance tab like the cpu can be off. ie the speed and load of the CPU can be off by as much as a couple hundred Mhz and reads hi by 10% of more.

[mikeschneider]

I have two different MoBos using effectively the same ram (admit the XMP speeds are different)

The GigaByte board with B650 chipset needed to have the ram voltage upped a little (was running 1.01 and I set to 1.1) and the voltage be controlled through all ram sticks individually. This allows my 4 sticks to Boot quick with XMP enable and full speed of the ram.

The MSI board with the x670e is a bit different where I have had the issue for a couple years till MSI released a BIOS update 3 months back. I would still have really long training times, but the system would boot with RAM at full XMP speed (again, 4 sticks). Recently, I started messing around with Overclocking and come across the possibility that this board was also using too low of voltage for the RAM (right at the edge). I don't have the option for the voltage to be on individual sticks like the B650 but I could up the voltage to where the ram should be running. This Voltage adjustment (setting to 1.25v per XMP specs of my ram), solved the extremely long training time (cut by half) and I have stable full XMP speed on my 4 Sticks on this system.

If curious, I use four sticks for the stupidest reason. I use RGB ram, and I like to have all 4 slots filled with the RGB. Otherwise, it feels like the system is missing something. I also recently learned that the maker of my ram does make Dummy RGB sticks. Oops..

[JoePolaris]

Check in msnual of motherboard, which DIMM slot is read at boot, typically AMD Zen5 seems to look up A2 and B2, since infinity buss is clocked at 6000mhz, getting DDR 5 6000 makes a lot of sense. Low latency ram will also benefit gaming by up to 10%. Also make sure onboard NVMe is not bus split with PCIe slot.

[mrcivster]

When using 4 sticks or two pairs, each pair needs to be installed in the same channel. In other words, the first pair out of the box goes to A1 and A2 slots and the other pair goes to B1 and B2.

[chionyenkwu]

This is good; However my understanding is that to get best performance from 4 sticks you need to get a "four stick kit" i.e 4 x 32 or 4 x 16 -- combining a pair of two stick kits is not the best.

[porkchoplets]

I use Corsair ddr5 6000MT/s 4 x 16GB modules on a Z690 Motherboard using all four channels and i have no issues with a i9 13900kf. It seems it is a lottery or Gskill memory is not that great. HWinfo reports the memory running at 6000MT/s and is stable. Windows 11 23H2

[rons]

You should not quit the memory training.
Wait for the system to quit.

[charlesg]

It's good to see such an openly gay man in the space...

[qwerty-dmgr]

4 dimms 6000mhz 7800x3d, you just need to know how to do timings, it's not for people who don't know what they're doing.
Btw, it was pretty easy.