Updated BIOS but which XMP profile do I use?

elrasho

elrasho

elrasho

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Over the holidays I decided to update the BIOS on my mobo.

It was on something like 0822 and is now on 2204. I noticed in CPU-Z my core clock has gone from 4700 to 4900 (sometimes touches 5000 too) which is a nice surprise.

Do I now need to select an XMP profle for my RAM to boost their speeds too? In the BIOS XMP is disabled, when I enable it I have a choise of Auto, XMP1 and XMP2

Thanks
 
elrasho said:
Thanks, what do you mean by timings? Also what is the different between XMP1 and XMP2 I did some google searches and there's loads of contradicting info
Click to expand...
timings
dram frequency
cas
ras to cas
cycle time
command rate
those are some of the major timings theres also more if you delve really deep
but most people dont need to
look in cpuz memory tab/section
dram frequency is your current speed
multiply that by 2 as its probably ddr ram unless its ancient
if you havent set a xmp then its probably lower than it can be

then in cpuz
look in the spd tab/section
the one furthest to left is probably your current speed with no xmp
the others show what speeds its capable of
the xmp profiles should be listed there
 
Mcnumpty2323 said:
timings
dram frequency
cas
ras to cas
cycle time
command rate
those are some of the major timings theres also more if you delve really deep
but most people dont need to
look in cpuz memory tab/section
dram frequency is your current speed
multiply that by 2 as its probably ddr ram unless its ancient
if you havent set a xmp then its probably lower than it can be

then in cpuz
look in the spd tab/section
the one furthest to left is probably your current speed with no xmp
the others show what speeds its capable of
the xmp profiles should be listed there
Click to expand...

Thanks I will have a look tonight
 
OK this is what I got:

top pic is when XMP was disabled in BIOS
bottom was when it was enabled in BIOS and set to XMP1

cmrcsKA.png

JqQKO3J.png


Both are identical ???
 
It's a little confusing
As there's a memory tab
And an spd tab
The spd tab shows the possible configurations your ram
Is capable of not it's current speed
So yes both will be identical
If you disable xmp then look at memory tab NOT spd tab
It should say 1066 (x2)
Then enable xmp and look in memory tab
It should then say 1600 (×2)
 
Mcnumpty2323 said:
It's a little confusing
As there's a memory tab
And an spd tab
The spd tab shows the possible configurations your ram
Is capable of not it's current speed
So yes both will be identical
If you disable xmp then look at memory tab NOT spd tab
It should say 1066 (x2)
Then enable xmp and look in memory tab
It should then say 1600 (×2)
Click to expand...

OK this is with XMP1 enabled and me running a game in the background

CZaWiD3.png

That looks OK right? as in I'm running at the correct speed for my RAM?
 
elrasho said:
Awesome thanks

What goes the XMP2 profile do?
Click to expand...
That I don't know never had ram with 2 xmp profiles
It may try to push the speed faster than 3200mhz
But drop the cas (latency) to a lower value
To enable the higher frequency to try to be stable
With ram it's a bit of a juggling match between frequency and cas
Usually higher frequency means lowering cas (latency)
And at some point it may become unstable
Or give worse results
Xmp profiles are basically overclocking the ram
So not guaranteed to be stable
 
Got ya thanks, I'm happy with where I'm at. After updated the BIOS I got another 1700 points on 3D Mark :cool:

My CPU used to max put at 4700 now it goes upto 4900 most times

Ks0uCeN.png
 
Last edited:
Orcvader said:
Wild guess but I assume XMP1 is from one stick and XMP2 is from the other, and the board is treating it as 2 different profiles even if they change the RAM to the same settings.
Click to expand...
Pretty sure even though none of mine have had it
That some ram does have multiple xmp profiles

Edit
From Google
XMP 3.0 increases from two to three factory profiles, plus two additional rewritable profiles, which you can customize and rename
So yeah still think XMP2 will try a more aggressive speed
Than XMP1
But with new cpus and ddr5 you can now have
Even more xmp profiles than previously
 
Last edited:
Mcnumpty2323 said:
Pretty sure even though none of mine have had it
That some ram does have multiple xmp profiles

Edit
From Google
XMP 3.0 increases from two to three factory profiles, plus two additional rewritable profiles, which you can customize and rename
So yeah still think XMP2 will try a more aggressive speed
Than XMP1
But with new cpus and ddr5 you can now have
Even more xmp profiles than previously
Click to expand...
On my MSI board it shows the same XMP1 and XMP2. I tried both and both profiles have the same settings. CPU-Z/HWiNFO64 both show there's only 1 profile on each stick. On an older Gigabyte board with the same RAM it only showed one XMP profile available, so it could be motherboard dependant.

But yes, recently built a new system for a friend and on their Asus with DDR5 there was two different EXPO profiles, each with different speed/timing settings.
 
Orcvader said:
On my MSI board it shows the same XMP1 and XMP2. I tried both and both profiles have the same settings. CPU-Z/HWiNFO64 both show there's only 1 profile on each stick. On an older Gigabyte board with the same RAM it only showed one XMP profile available, so it could be motherboard dependant.

But yes, recently built a new system for a friend and on their Asus with DDR5 there was two different EXPO profiles, each with different speed/timing settings.
Click to expand...

On some boards XMP2 will be the default XMP profile whilst XMP1 will be the XMP profile but with allowances for the board to try and tighten the timings further.
 
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