Question

Overclock not working anymore after upgrading ram from 16gb

Intel I7 5820K
Asus X-99 A / USB3.1
Corsair DIMM 16GB DDR4-3200 Kit (Got 1 Kit before now i got 2 Kits both with 2x8GB)
Geforce 1080TI

If i only use 1 Kit (old or new one) i can activate the xmp profile in the bios and everything works fine, i run my old Kit at 3200 MHZ several months.

If im adding more than this 16GB overclocking always fails.

Can someone help?

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Sounds correct.

Overclocking pushes the entire system to whatever max you can get to. Change a part of the system and that maximum can be lower, higher or the same.

No one can help since you have a new system so you have to repeat what you did to find the new maximum.

-> That said, XMP is a bit of hit or miss. You will find many discussions where folk discover it doesn't work. If you feel this is wrong then you complain to the makers. Here I have to go with real world findings and what I see. That is, we go with what works. If a client demands we overclock we no longer have that client. It's a tar pit where it may work today and not tomorrow and such demanders are always back at the shop next week on months later wanting it to run at the overclocked settings.

You might be able to get there with faster RAM but no one seems to warranty that.

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I cant beliefe you are serious

Intel gave green light on XMP always.

I dont know what you try to tell me here.

I simply activated the XMP profile and turned the multiplicator of my cpu from 36 to 42 and i run this setup over a year.

Overclocking pushes the entire system to whatever max you can get to.

You tell me activating the XMP profile in my bios is the highest to go? Are you serious about that? This is most likely the lowest and safest overclocking you can do.....

And yes sure the bios is up to date


"New System" ? Did you even read the op?

Buying a new KIT of the RAM u are already using isnt a new system...

If u say XMP is bad or you deny sevice for that you are a miss im sorry. XMP is normal and slightly overclocking on an "k" cpu (which has an open multiplicator to overclock it!)

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Very serious.

The more PCs you work on the more you encounter machines that you have to use other than XMP.

-> Changing the RAM makes it a new system.

That's pretty basic so I think you are not seasoned yet. No big deal as it takes about a year for a new tech at the office to get the edges worn down.

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I don't see where I wrote "the highest"

I did write that when you make changes where the highest clocking can be. It's up to the owner to find this new high.

-> Some folk want to get into overclocking which doesn't seem to happen in the CNET forums. If you want to get into that, seek out overclocking forums.

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Answer
PS.

Forgot a thing. XMP is very much a BIOS thing. As such, be sure your motherboard BIOS is the latest.

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Answer
Ram

Kit #1 if run at 3200 works fine.

Kit#2 if run at 3200 works fine.

If you combine both kits at 3200 it fails.

Do the sticks in each kit have the same part number?

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Good point.

I've lost count how many times we can't get mixed RAM to work or play together. It wasn't long ago you had to match batches as well. So ANY variation in the mix and you find a balding tech.

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