AORUS 8gbx2 4400mhz issues, pc won't boot up.

[Skynet n stuff]

Hi I've just completed a build with everything new out of the box, everything seems to work fine and in the bios I set my ram to XMP specs @ 1.5v 4400mhz with my pc constantly rebooting setting the frequency to 2666mhz. 

 

on gigabytes website using the compatibility list the ram is recommended at them specs when running on this monther board also the motherboard is advertised to reach 5000mhz so I'm Stumped 

 

I currently have 4x8gb xmp running but only at @ 1.5v 3900mhz , any idea in why it can't reach 4400mhz?  

Thanks in advanced! 

 

 

Pc specs listed below. 

 

 

 

CPU-10900k 

Motherboard - Gigabyte Z490 Aorus Master Waterforce LGA1200 ATX 

Memory -  - gigabyte 16GB Kit (2x8GB) DDR4 Aorus RGB 4400Mhz C19 ( running two of these with 32gb in total @3900mhz 1.5v) 

OS drive- MA Corsair Force MP600 2TB Gen4 PCIe N0Me M.2 SSD

GPU -  Gigabyte GeForce RTX 3090 Xtreme Waterforce 24GB GDDR6X

e0GA SuperNO0A P2 1200W 80PLUS Platinum Power Supply
 

[Analog]

14 minutes ago, Skynet n stuff said:

Hi I've just completed a build with everything new out of the box, everything seems to work fine and in the bios I set my ram to XMP specs @ 1.5v 4400mhz with my pc constantly rebooting setting the frequency to 2666mhz. 

 

on gigabytes website using the compatibility list the ram is recommended at them specs when running on this monther board also the motherboard is advertised to reach 5000mhz so I'm Stumped 

 

I currently have 4x8gb xmp running but only at @ 1.5v 3900mhz , any idea in why it can't reach 4400mhz?  

Thanks in advanced! 

 

 

Pc specs listed below. 

The computer is power cycling because the motherboard is not able to train the memory at that speed. You said that the motherboard is advertised as capable of memory speeds up to 5000MHz. This, however, is completely irrelevant, as that speed might have been achieved on one specific kit and in one particular config. This is why one shouldn't be paying so much attention to the marketing material. This being said, the main question at hand is whether the actual memory kit that you bought (kit part number) is present on the QVL? Even then it is necessary to consider that everything is ultimately going to depend on how good the memory controller is on your processor. The silicon lottery is very much applicable to the memory controller as well. 

 

Please see below the only validated 4400MHz memory kits for this motherboard. Full list is here. As you can see from the list there is no 4x8GB 4400MHz config that is validated as supported. The highest rated 4x8GB config is for 4133MHz and is for ADATA memory. 

 

 

At the bottom of the QVL there do also note the following statement:

 

[-rascal-]

Adding to @Analog's point.

It doesn't matter if your motherboard and DDR4 memory kit is rated for 4400 Mz.

If your CPU's Integrated Memory Controller (IMC) can't handle that aggressive frequency (e.g. not like top 1% of  i9-10900K's), then you won't be able to run it.

[MadAnt250]

17 minutes ago, Skynet n stuff said:

I currently have 4x8gb xmp running but only at @ 1.5v 3900mhz , any idea in why it can't reach 4400mhz?  

Thanks in advanced! 

Maybe 4400mhz is doable when 2 slots are populated, but 4 slots is not.

[Skynet n stuff]

21 minutes ago, Analog said:

The computer is power cycling because the motherboard is not able to train the memory at that speed. You said that the motherboard is advertised as capable of memory speeds up to 5000MHz. This, however, is completely irrelevant, as that speed might have been achieved on one specific kit and in one particular config. This is why one shouldn't be paying so much attention to the marketing material. This being said, the main question at hand is whether the actual memory kit that you bought (kit part number) is present on the QVL? Even then it is necessary to consider that everything is ultimately going to depend on how good the memory controller is on your processor. The silicon lottery is very much applicable to the memory controller as well. 

 

Please see below the only validated 4400MHz memory kits for this motherboard. Full list is here. As you can see from the list there is no 4x8GB 4400MHz config that is validated as supported. The highest rated 4x8GB config is for 4133MHz and is for ADATA memory. 

 

 

At the bottom of the QVL there do also note the following statement:

 

Okay makes a bit more sense, what would you say the optimal frequency and voltage for this setup would be, I'm only asking just because I'm quite new to all this. 

Thanks heaps! 

[Analog]

8 hours ago, Skynet n stuff said:

Okay makes a bit more sense, what would you say the optimal frequency and voltage for this setup would be, I'm only asking just because I'm quite new to all this. 

Thanks heaps! 

Intel has no Infinity Fabrik so the higher the memory frequency the better. Still, with memory there is no one size fits all in regards to the settings and voltage. Considering that your kit is already running at 1.5V I wouldn't go higher than that, because 1.5V is the maximal safe DDR4 voltage for 24/7 operation. My recommendation is to keep the existing timings and instead start lowering the frequency. Once the computer is able to boot up run Linpack Xtreme or Intel Burn Test and check if everything is stable.