Question bench my pc says ram is under performing

[moss99]

Hi all , i recently upgraded my pc , i have a strix B250 F board , i7 6700 cpu @ 3.40 GHz , ram is corsair vengance LPX - DDR4 2x8 GB 3000 mhz , i ran bench my pc and it reported back the ram is performing below potential at 2133 MHz and to ensure xmp is enabled ..
when i turn xmp on and try and set the DRAM frequency to anything other than 2133 (default) i get no boot and message saying system unstable , am i missing another setting i need to change

 

[bignastyid]

With your cpu and motherboard combo 2133 is what you are going to get.

 

[moss99]

Thanks for the reply , so i would need a faster cpu and a newer board to make the ram perform at full potential ?

 

[bignastyid]

Thanks for the reply , so i would need a faster cpu and a newer board to make the ram perform at full potential ?

For an Intel CPU you'd need a z board.

 

[moss99]

For an Intel CPU you'd need a z board.

Thanks for the info..

 

[bignastyid]

Also just to note. Don't upgrade just because the memory isn't being fully utilized, you could end up spending alot of money to see little to no gain in real world performance.

 

[moss99]

Also just to note. Don't upgrade just because the memory isn't being fully utilized, you could end up spending alot of money to see little to no gain in real world performance.

Hi , im not too bothered about it , i just thought as my board seemed to open up a list of available speeds when i turned on the xmp , it seemed straight forward ..

 

[zx128k]

The motherboard does support up to 3866 RAM speeds. QVL memory
You are getting 2133 because that's what your stock RAM frequency is for that CPU. i7 2600 Specifications link

So going for DDR4 2x8 GB 3000 is basically overclocking. If xmp will not work then try manually entering the primary settings manually. Remember also to enter the DRAM voltage or you will get a black screen on boot. If the cpu's IMC likes the new frequency, then hopefully you will boot to the bios screen. Google shows that this ram kit could be using XMP 2.0. You can read the settings using cpu-z for example.

Only RAM on the QVL document ( QVL memory)are guaranteed to run at rated speeds. Even so the CPU IMC has to be able to run at those frequencies and timings as well. It could be that 3000 will not work with your IMC and you should try another frequency. Unlikely but it happens. Sometimes the motherboard just does not like the RAM and wont clock higher with that kit.

	DDR4-1600 (PC4-12800) DDR4-1866 (PC4-14900) DDR4-2133 (PC4-17000) DDR4-2400 (PC4-19200) DDR4-2666 (PC4-21333) DDR4-2933 (PC4-23466) DDR4-3200 (PC4-25600)

https://en.wikipedia.org/wiki/DDR4_SDRAM

The issue with upgrading
You could replace the motherboard and find out its the cpu's imc. Or replace the cpu and find out its the motherboard. Or at the end just find out the RAM is faulty and won't run above 2133. This could lead to a costly upgrade of the whole system.

With my Ryzen 3800x the xmp profile does not work for example, but entering the primary timings and voltage does work.

Also here the maximum speed was 2400. Give 2400 a go and see what happens.

2400mhz ram in 3000mhz supported motherboad

i want to get the (Corsair 16GB Kit (2x8wGB) DDR4 Dominator C15 3000MHz) but the motherboad i want (ASUS ROG Strix B250F Gaming LGA1151 ATX Desktop Motherboard) only supports 2400/2133mhz will it still work ? thank you for your help and time and sorry if its a dumb qestion im quite new

forums.tomshardware.com

 

[bignastyid]

The motherboard does support up to 3866 RAM speeds. QVL memory
You are getting 2133 because that's what your stock RAM frequency is for that CPU. i7 2600 Specifications link

So going for DDR4 2x8 GB 3000 is basically overclocking. If xmp will not work then try manually entering the primary settings manually. Remember also to enter the DRAM voltage or you will get a black screen on boot. If the cpu's IMC likes the new frequency, hopefully you will boot to the bios screen. Google shows that this ram kit could be using XMP 2.0. You can read the settings using cpu-z for example.

Only RAM on the QVL document ( QVL memory)are guaranteed to run at rated speeds. Even so the CPU IMC has to be able to run at those frequencies and timings as well. It could be that 3000 will not work with your IMC and you should try another frequency.

	DDR4-1600 (PC4-12800) DDR4-1866 (PC4-14900) DDR4-2133 (PC4-17000) DDR4-2400 (PC4-19200) DDR4-2666 (PC4-21333) DDR4-2933 (PC4-23466) DDR4-3200 (PC4-25600)

https://en.wikipedia.org/wiki/DDR4_SDRAM

The issue with upgrading
You could replace the motherboard and find out its the cpu's imc. Or replace the cpu and find out its the motherboard. Or at the end just find out the RAM is faulty and won't run above 2133. This could lead to a costly upgrade of the whole system.

Thats not correct. With a 6th gen cpu that board will only run ram speeds upto 2133, with a 7th gen chip it will run upto 2400. You can install a kit with higher speeds but the speeds will be limited due to the chipset limitations. The XMP example in your post was done with an unlocked cpu and a Z board which will allow faster ram speeds, the OP has a B250 and a locked 6th gen cpu. The QVL just listed tested modules and they may not run at those speeds depending on the configuration.

 

[zx128k]

Thats not correct. With a 6th gen cpu that board will only run ram speeds upto 2133, with a 7th gen chip it will run upto 2400. You can install a kit with higher speeds but the speeds will be limited due to the chipset limitations. The XMP example in your post was done with an unlocked cpu and a Z board which will allow faster ram speeds, the OP has a B250. The QVL just listed tested modules and they may not run at those speeds depending on the configuration.

I have just found the manual, looks like you could be right the IMC won't support it. Sad for the OP. Links provided for the OP.




Motherboard manual link on amazon.com