[SOLVED] Is it safe to use XMP?

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JustAComputerUser

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Dec 3, 2015
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I went into BIOS and changed the XMP profile to XMP profile 1 instead of disabled. It increased my performance by ALOT. But I have no clue about memory speeds and stuff. Could someone tell me if it's a safe change?

Motherboard: z87-k

Ram:
Slot 1: DDR 3 Corsair 8192 MB (Part number: CMY16GX3M2A2400C11)
Slot 2: DDR 3 G.Skill 4096 MB (Part number: F3-17000CL 11-4GBXL / 2133MHz 1.50V~1.60V )
Slot 3: DDR 3 Corsair 8192 MB (Part number: CMY16GX3M2A2400C11)
Slot 4: DDR 3 G.Skill 4096 MB (Part number: F3-17000CL 11-4GBXL / 2133MHz 1.50V~1.60V)

Corsair specs:
Density: 16GB (2x8GB)Speed: 2400MHz
Tested Latency: 11-13-13-31,
Voltage: 1.65V
Format: DIMM,
Pin Out: 240 Pin, Intel XMP 1.3


before (ignore GPU):

https://www.userbenchmark.com/UserRun/18727449

After:

https://www.userbenchmark.com/UserRun/18728002


And well.. I changed the XMP profile to 1, and now my windows 10 features doesn't work so have to do a clean install. But for the future, I need to know how to make my ram run as good as possible
 
Solution
WildCard999
JustAComputerUser said:
Okay, I guess the 24 GB ram was a bit overkill anyway lol. But looking at the motherboard. Does it matter if the ram is in socket 1 and 3, vs 2 and 4? I just read something about the fastest ram should be in 1 and 3, but can't find it anywhere in the manual. And my watercooler is in the way to put them in the 1 and 3 slots, but it is possible for me to move the sticks in them. Just wanna know if it matters or not.
Click to expand...
1 & 3, 2 & 4 are the channel slots so you can use 2 & 4 fine.

AIDA64 & CPU-Z is reading it at 1200mhz so no worries.
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WildCard999 said:
It won't, XMP gets the memory to run at the correct speed, timings & voltage that there rated to run at.
Click to expand...
Even when the sticks are completely different brand, size and speed? Cause last time I enabled XMP with both types in, it ran smoothly and really good. But my whole windows 10 got corrupted and had to reinstall it, but it could have been a coincidence?
 
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One of my sticks are rated 2133MHz the other 2400Mhz. But when I enable XMP with both brands in, BIOS settings say it runs at 2400Mhz. So I'm afraid that it only reads 1 of the ratings, and then gives too much voltage to the other ones and make them run at speeds that they aren't rated for.

The benchmark says with both enabled and BIOS said 2400Mhz: 1600, 2133, 1600, 2133 MHz
Seems like one of the pairs are running at the correct speed, but the other is at 1600, just like they are running now without the other sticks.
 
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JustAComputerUser said:
One of my sticks are rated 2133MHz the other 2400Mhz. But when I enable XMP with both brands in, BIOS settings say it runs at 2400Mhz. So I'm afraid that it only reads 1 of the ratings, and then gives too much voltage to the other ones and make them run at speeds that they aren't rated for.

The benchmark says with both enabled and BIOS said 2400Mhz: 1600, 2133, 1600, 2133 MHz
Seems like one of the pairs are running at the correct speed, but the other is at 1600, just like they are running now without the other sticks.
Click to expand...
It is a bit odd that its reading 2400 as usually with mixed kits XMP goes by the slowest kit.

Honestly I'd sell the Gskill kit and just run the Corsair kit as 16gb is plenty for gaming and some editing and in most apps the dual channel kit will run better then 4 sticks.
 
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WildCard999 said:
It is a bit odd that its reading 2400 as usually with mixed kits XMP goes by the slowest kit.

Honestly I'd sell the Gskill kit and just run the Corsair kit as 16gb is plenty for gaming and some editing and in most apps the dual channel kit will run better then 4 sticks.
Click to expand...

Okay, I guess the 24 GB ram was a bit overkill anyway lol. But looking at the motherboard. Does it matter if the ram is in socket 1 and 3, vs 2 and 4? I just read something about the fastest ram should be in 1 and 3, but can't find it anywhere in the manual. And my watercooler is in the way to put them in the 1 and 3 slots, but it is possible for me to move the sticks in them. Just wanna know if it matters or not.
 
Upvote 0 Downvote
JustAComputerUser said:
Okay, I guess the 24 GB ram was a bit overkill anyway lol. But looking at the motherboard. Does it matter if the ram is in socket 1 and 3, vs 2 and 4? I just read something about the fastest ram should be in 1 and 3, but can't find it anywhere in the manual. And my watercooler is in the way to put them in the 1 and 3 slots, but it is possible for me to move the sticks in them. Just wanna know if it matters or not.
Click to expand...
1 & 3, 2 & 4 are the channel slots so you can use 2 & 4 fine.

AIDA64 & CPU-Z is reading it at 1200mhz so no worries.
 
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