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XMP, will it mess with my cpu?

ScuzzyFox
By ScuzzyFox
in CPUs, Motherboards, and Memory
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I have just finished assembling my first pc and am ready to set up the bios stuff!

 

I've only got one concern; I have corsair vengeance lpx memory at 2666. I remember learning that in order to get the ram to run at it's intended speed, I should enable XMP. However, after doing some research I saw that doing this could also make my CPU run at it's max overclock frequency all the time, even at idle.

 

I don't want to overclock my CPU, at least not now, but I still want my memory to run at 2666MHz.

What could I do?

(Using an asus z170-A board)

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Just run it at highest speed that doesn't require XMP. You won't notice a difference.

Come Bloody Angel

Break off your chains

And look what I've found in the dirt.

 

Pale battered body

Seems she was struggling

Something is wrong with this world.

 

Fierce Bloody Angel

The blood is on your hands

Why did you come to this world?

 

Everybody turns to dust.

 

Everybody turns to dust.

 

The blood is on your hands.

 

The blood is on your hands!

 

Pyo.

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If you enable XMP it shouldn't make your CPU run at the max speed all the time. I don't know where you read this but it's incorrect.

 

The only thing you might want to look for is if when you enable XMP is the BCLK is raised. If it is, your CPU and cache are also being overclocked which you don't want. If enabling XMP does that, don't enable it, but I don't think it should do that.

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And if you're curious (or a stalker) I have a Just Black Pixel 2 XL 64gb

 

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6 minutes ago, DocSwag said:

If you enable XMP it shouldn't make your CPU run at the max speed all the time. I don't know where you read this but it's incorrect.

 

The only thing you might want to look for is if when you enable XMP is the BCLK is raised. If it is, your CPU and cache are also being overclocked which you don't want. If enabling XMP does that, don't enable it, but I don't think it should do that.

Oh, I see o:

 

what exactly is the difference between BCLK and the base clock intel gives? BCLK is 100MHz and 6700k base clock is 4.0GHz)

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1 minute ago, ScuzzyFox said:

Oh, I see o:

 

what exactly is the difference between BCLK and the base clock intel gives? BCLK is 100MHz and 6700k base clock is 4.0GHz)

BCLK is 100 mhz. CPU multiplier is 40 on the 6700k. CPU frequency = BCLK*CPU multiplier.

 

BCLK affects the RAM, cache, CPU clock speed, and on some CPUs can affect pcie and sata bus timings (basically, don't mess with it). On skylake it only affects CPU, RAM, and cache.

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And make sure you do it by hitting the quote button at the bottom left of my post, and not the one inside the editor!

Or this:

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Buy whatever product is best for you, not what product is "best" for the market.

 

Interested in computer architecture? Still in middle or high school? P.M. me!

 

I love computer hardware and feel free to ask me anything about that (or phones). I especially like SSDs. But please do not ask me anything about Networking, programming, command line stuff, or any relatively hard software stuff. I know next to nothing about that.

 

Compooters:

Spoiler

Desktop:

Spoiler

CPU: i7 6700k, CPU Cooler: be quiet! Dark Rock Pro 3, Motherboard: MSI Z170a KRAIT GAMING, RAM: G.Skill Ripjaws 4 Series 4x4gb DDR4-2666 MHz, Storage: SanDisk SSD Plus 240gb + OCZ Vertex 180 480 GB + Western Digital Caviar Blue 1 TB 7200 RPM, Video Card: EVGA GTX 970 SSC, Case: Fractal Design Define S, Power Supply: Seasonic Focus+ Gold 650w Yay, Keyboard: Logitech G710+, Mouse: Logitech G502 Proteus Spectrum, Headphones: B&O H9i, Monitor: LG 29um67 (2560x1080 75hz freesync)

Home Server:

Spoiler

CPU: Pentium G4400, CPU Cooler: Stock, Motherboard: MSI h110l Pro Mini AC, RAM: Hyper X Fury DDR4 1x8gb 2133 MHz, Storage: PNY CS1311 120gb SSD + two Segate 4tb HDDs in RAID 1, Video Card: Does Intel Integrated Graphics count?, Case: Fractal Design Node 304, Power Supply: Seasonic 360w 80+ Gold, Keyboard+Mouse+Monitor: Does it matter?

Laptop (I use it for school):

Spoiler

Surface book 2 13" with an i7 8650u, 8gb RAM, 256 GB storage, and a GTX 1050

And if you're curious (or a stalker) I have a Just Black Pixel 2 XL 64gb

 

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1 minute ago, DocSwag said:

BCLK is 100 mhz. CPU multiplier is 40 on the 6700k. CPU frequency = BCLK*CPU multiplier.

 

BCLK affects the RAM, cache, CPU clock speed, and on some CPUs can affect pcie and sata bus timings (basically, don't mess with it). On skylake it only affects CPU, RAM, and cache.

Oh I get it I think! so if I were to overclock in the future, I should change the cpu multiplier and /not/ BCLK so's to avoid messing with all the other stuff?

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16 minutes ago, ScuzzyFox said:

I have just finished assembling my first pc and am ready to set up the bios stuff!

 

I've only got one concern; I have corsair vengeance lpx memory at 2666. I remember learning that in order to get the ram to run at it's intended speed, I should enable XMP. However, after doing some research I saw that doing this could also make my CPU run at it's max overclock frequency all the time, even at idle.

 

I don't want to overclock my CPU, at least not now, but I still want my memory to run at 2666MHz.

What could I do?

(Using an asus z170-A board)

I've only encountered two ill effects from XMP:

1. Increased temperatures (duh)

2. Can destabilize an otherwise stable OC

 

XMP might slightly overclock your CPU, very very slightly, but it certainly won't run your CPU at crazy speeds. The max overclock frequency for a CPU, btw, is something of a theoretical construct. Given enough voltage and enough cooling to keep the CPU from frying itself, one could conceivably run at inifnity GHz (and someone would still complain about not hitting ininfity-one GHz).

 

Since you're not overclocking your CPU, heat and stability should not be issues for you. XMP away!

Aerocool DS are the best fans you've never tried.

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1 minute ago, ScuzzyFox said:

Oh I get it I think! so if I were to overclock in the future, I should change the cpu multiplier and /not/ BCLK so's to avoid messing with all the other stuff?

Yes, exactly :) 

Make sure to quote me or tag me when responding to me, or I might not know you replied! Examples:

 

Do this:

Quote

And make sure you do it by hitting the quote button at the bottom left of my post, and not the one inside the editor!

Or this:

@DocSwag

 

Buy whatever product is best for you, not what product is "best" for the market.

 

Interested in computer architecture? Still in middle or high school? P.M. me!

 

I love computer hardware and feel free to ask me anything about that (or phones). I especially like SSDs. But please do not ask me anything about Networking, programming, command line stuff, or any relatively hard software stuff. I know next to nothing about that.

 

Compooters:

Spoiler

Desktop:

Spoiler

CPU: i7 6700k, CPU Cooler: be quiet! Dark Rock Pro 3, Motherboard: MSI Z170a KRAIT GAMING, RAM: G.Skill Ripjaws 4 Series 4x4gb DDR4-2666 MHz, Storage: SanDisk SSD Plus 240gb + OCZ Vertex 180 480 GB + Western Digital Caviar Blue 1 TB 7200 RPM, Video Card: EVGA GTX 970 SSC, Case: Fractal Design Define S, Power Supply: Seasonic Focus+ Gold 650w Yay, Keyboard: Logitech G710+, Mouse: Logitech G502 Proteus Spectrum, Headphones: B&O H9i, Monitor: LG 29um67 (2560x1080 75hz freesync)

Home Server:

Spoiler

CPU: Pentium G4400, CPU Cooler: Stock, Motherboard: MSI h110l Pro Mini AC, RAM: Hyper X Fury DDR4 1x8gb 2133 MHz, Storage: PNY CS1311 120gb SSD + two Segate 4tb HDDs in RAID 1, Video Card: Does Intel Integrated Graphics count?, Case: Fractal Design Node 304, Power Supply: Seasonic 360w 80+ Gold, Keyboard+Mouse+Monitor: Does it matter?

Laptop (I use it for school):

Spoiler

Surface book 2 13" with an i7 8650u, 8gb RAM, 256 GB storage, and a GTX 1050

And if you're curious (or a stalker) I have a Just Black Pixel 2 XL 64gb

 

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1 minute ago, aisle9 said:

I've only encountered two ill effects from XMP:

1. Increased temperatures (duh)

2. Can destabilize an otherwise stable OC

 

XMP might slightly overclock your CPU, very very slightly, but it certainly won't run your CPU at crazy speeds. The max overclock frequency for a CPU, btw, is something of a theoretical construct. Given enough voltage and enough cooling to keep the CPU from frying itself, one could conceivably run at inifnity GHz (and someone would still complain about not hitting ininfity-one GHz).

 

Since you're not overclocking your CPU, heat and stability should not be issues for you. XMP away!

 

1 minute ago, DocSwag said:

Yes, exactly :) 

Sweet! Thanks for the help you guys! <3

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  • 1 year later...
Posted
On 12/8/2016 at 4:59 AM, ScuzzyFox said:

I have just finished assembling my first pc and am ready to set up the bios stuff!

 

I've only got one concern; I have corsair vengeance lpx memory at 2666. I remember learning that in order to get the ram to run at it's intended speed, I should enable XMP. However, after doing some research I saw that doing this could also make my CPU run at it's max overclock frequency all the time, even at idle.

 

I don't want to overclock my CPU, at least not now, but I still want my memory to run at 2666MHz.

What could I do?

(Using an asus z170-A board)

i have the same proble when i activate xmp prifile on gigabyte aourus z270 the mouse will not work very good in windows

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