Question 2 different voltages for RAM in BIOS ?

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dionddc

Jan 27, 2019
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Hi guys,

I've been trying to make my RAM run at its rated speed (3000 mhz) in my new PC.

I have a:

Aorus B450 Elite mobo
AMD Ryzen 2600 CPU

Memory model is GeIL Super Luce RGB Sync 16 GB (8 GB x 2) DDR4 3000 (GLS416GB3000C16ADC)

I know DDR4 default speed is 2133 mhz, and so far I have managed to enable XMP profile to run at 2400 mhz.

However, whenever I change the multiplier to anything about that like 26.67 or 29.93 (which my mobo can handle) the PC does a cold boot twice, boots fine the third time but runs back at default 2133 mhz.

Below are some images of my BIOS settings. What I have noticed is that in one setting, enabling profile 1 sees my "Profile DDR Voltage" go to 1.35v.

However in another setting, which I think is "Advanced Voltage Settings", DRAM Voltage (CH A/B) is also auto but reads 1.20v

Do I need to override this setting and also change it to 1.35 V to match the profile DDR voltage setting? Or is it something completely different?

I'm not so good with messing around in the BIOS, so I haven't really been changing anything apart from the system memory multiplier itself.

Thanks for your help.

https://imgur.com/a/wvvCVNQ
View: https://imgur.com/a/wvvCVNQ

https://imgur.com/a/96Sys4z
View: https://imgur.com/a/96Sys4z

https://imgur.com/a/9yqd1JG
View: https://imgur.com/a/9yqd1JG
 
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Well, most RAM will need increased voltage as soon as frequency goes over base speed (usually 2133MHz), 1.35v is usual voltage. That can be seen in it's SPD/XMP profiles. If you are OC-ing manually, you have to change voltage manually too.
Make sure you have latest BIOS with AGESA 1006 installed for DOCP/XMP to recognize RAM properly.
 
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CountMike said:
Well, most RAM will need increased voltage as soon as frequency goes over base speed (usually 2133MHz), 1.35v is usual voltage. That can be seen in it's SPD/XMP profiles. If you are OC-ing manually, you have to change voltage manually too.
Make sure you have latest BIOS with AGESA 1006 installed for DOCP/XMP to recognize RAM properly.
Click to expand...
Thanks - I'll make sure to update my BIOS in case it isn't on the latest version
 
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Calvin7 said:
Geil has a specific line for AMD. GALS416GB3000C16ADC
You have GLS416GB3000C16ADC

https://www.amazon.com/GeIL-288-Pin-Desktop-Memory-GALS416GB3000C16ADC/dp/B07FF7GG6Y

If you don't use Single Rank memory, you may have a problem reaching the desired clock speed.

Memory Configurations
Dual ChannelSingle Rank2 of 2DDR4-2933
2 of 4DDR4-2933
4 of 4DDR4-2133
Double Rank2 of 2DDR4-2667
2 of 4DDR4-2400
4 of 4DDR4-1866
https://en.wikichip.org/wiki/amd/ryzen_5/2600
Click to expand...
Thanks for your reply

That kinda sucks... how do I tell what rank my RAM is ?

Even if it is double rank though... that should still mean I should be able to achieve 2,667 mhz ?
 
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https://www.gigabyte.com/uk/Motherboard/B450-AORUS-ELITE-rev-10#support-doc

only 2 geil dimms on the qvl

GEIL 8GB 2Rx8 GPR416GB3000C15ADC SS 15-17-17-35 1.35v v v v 2133 double rank

GEIL 8GB 1Rx8 GEX416GB3000C15ADC SS 15-17-17-35 1.35v v v v 2133 single rank

GLS416GB3000C16ADC Isn't on it so it's not officially tested with the board by gigagyte

Compliance with the qvl would probably increase your chances of over clocking it. If you send back the dimms and replace it you could choose from several on the list. Maybe they'll let you return it if you explain bought in error. Doesn't hurt to ask.

As for the prices on each dimm you'll have to google each by part number. The geils are out of stock on newegg & I'm not getting great results from searching different models though.
 
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Just checked my BIOS version and it's F2. F4 comes with AGESA 1006 for improved memory compatibility so let's see if updating BIOS works as CountMike suggested.
 
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Yes but it isn't precisely matched to the qvl some might say, whatever but what do we know that says you don't have to comply with the qvl. The mem. is only guaranteed to run at spec. overclocking it is going to be fussier. and the v color is already 1.35v so you probably won't have to worry about the voltages. It will either do it or it won't. No idea what improved compatibility could mean they didn't update the qvl with the bios that might mean, qvl tested ram is somehow more overclockable? I can't imagine. Basically going off the documented path is taking risks without knowing anything.

There's only a few 8gb single rank dimms on the list so far only found the geil review GEX416GB3000C15ADC

https://proclockers.com/reviews/memory/geil-evo-x-3000mhz-ddr4-2x16gb-32gb-memory-kit/page/0/4

That did overclock to 3000mhz with xmp on. They didn't have to do any messing about. So it either will or won't. Dimms with different part numbers are vastly different models. Improved compatibility could mean, there are more models that we don't know if they will overclock or not. Searched quite a few on the qvl & there simply aren't any reviews with an identical rig.

So it sounds like the basic original problem is a narrow range of dimms that are practically available for the board and maybe they did update the qvl when the bios was released and that's still all it is, so updating your bios probably doesn't change anything.
 
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