Memory speed for 11gen processor

[SpudyFace]

Hello, recently decided to upgrade my 10600k to 11900k. I have a z490 mobo whith latest bios update. After installing new cpu I ran into a problem, on first launch pc went into bsod loop with whea uncorrectable error msg, after a restart it showed faulty dram led on mobo. After a few tries I managed to get into bios where everything seemed normal, but I couldnt boot into windows whatever I tried, I got blackscreens, frozen bios and stuff like that. Today I got information that my 2400 MHz memory isnt compatable with 11gen processors.

On Intel official website in cpu specs it also shows that supported memory is 3200 MHz.

Has anyone ever encountered simmilar problem or knows certenly that this lower memory speed is the issue?

I have seen some posts where people with simmilar setup used 2933 MHz memory and it worked flawless.

Is my memory waaaay too slow, or if it is an issue at all?

[porina]

Exactly what ram do you have?

 

11th gen does officially support 3200 ram, but that applies to JEDEC standard. XMP is still considered overclocking even at that speed or lower, since it is non-standard. If your ram is 2400 JEDEC I don't see a reason for it not to work at that speed. If it is 2400 XMP, turn off XMP.

 

I suggest loading defaults on bios in case some settings are messed up after the CPU swap and see if that helps.

[Somerandomtechyboi]

Return the 11900k and jump to am5 or atleast get a 10850k instead if you are really insistent on sticking with lga 1200 since the 11900k is just an 8 core like the 11700k and ofc loses to the 10850k/10900k since those are 10 core cpus

 

only area rocket lake excels in is ddr4 5600+ gear 2 otherwise its just a sidegrade vs cometlake that can already do ddr4 4400-4600 with vccsa/io 1.45v

[SpudyFace]

30 minutes ago, porina said:

Exactly what ram do you have?

 

11th gen does officially support 3200 ram, but that applies to JEDEC standard. XMP is still considered overclocking even at that speed or lower, since it is non-standard. If your ram is 2400 JEDEC I don't see a reason for it not to work at that speed. If it is 2400 XMP, turn off XMP.

 

I suggest loading defaults on bios in case some settings are messed up after the CPU swap and see if that helps.

I have 4x8gb HyperX Fury DDR4-2400MHZ with no XMP enabled, bios setting are set to default and even did a cmos reset(I have been told that could help)

[SpudyFace]

29 minutes ago, Somerandomtechyboi said:

Return the 11900k and jump to am5 or atleast get a 10850k instead if you are really insistent on sticking with lga 1200 since the 11900k is just an 8 core like the 11700k and ofc loses to the 10850k/10900k since those are 10 core cpus

 

only area rocket lake excels in is ddr4 5600+ gear 2 otherwise its just a sidegrade vs cometlake that can already do ddr4 4400-4600 with vccsa/io 1.45v

At this point 11900k is not at my possesion and currently there are no 11700k or any 10th gen cpus available near my location besides 10600k that I already own.

I dont want to swap from lga1200 because at this point 11900k would be more than enough for my needs.

[porina]

5 minutes ago, SpudyFace said:

I have 4x8gb HyperX Fury DDR4-2400MHZ with no XMP enabled, bios setting are set to default and even did a cmos reset(I have been told that could help)

This one or similar? https://www.kingston.com/datasheets/hx424c15fb2_8.pdf

It should just work. The only thing that could have an impact is that you're running 4 sticks, but it would be unusual for that to be a problem at this low speed. Does it work if you run 2 sticks only, making sure to put them in separate channels.

[SpudyFace]

44 minutes ago, porina said:

This one or similar? https://www.kingston.com/datasheets/hx424c15fb2_8.pdf

It should just work. The only thing that could have an impact is that you're running 4 sticks, but it would be unusual for that to be a problem at this low speed. Does it work if you run 2 sticks only, making sure to put them in separate channels.

These are the sticks I have: https://www.kingston.com/datasheets/HX424C15FB3A_8.pdf

I have tested all 4 of them in different combinations in 1st channel, 2nd channel and all if them together, even with only 1 at a time in different slots, doesnt work.

There is olny 2 things left either cpu is dead(I dont think so, I have seen it working fine) or somehow my ram is too slow(might be some shennanigans with z490 not beeing fully compatable with 11gen or compatable with some exceptions)

I have been given information about my exact situation with z490 mobo and 11gen and the tech/it guy straight up told that ram is the problem, but I am also suspicious about that information, so I decided to asf for second opinion.

Maybe someone also had simmilar issue.

[porina]

13 minutes ago, SpudyFace said:

I have been given information about my exact situation with z490 mobo and 11gen and the tech/it guy straight up told that ram is the problem, but I am also suspicious about that information, so I decided to asf for second opinion.

Maybe someone also had simmilar issue.

I also had a 10600k on Z490 board in the past. Dropped a 11700k in it with then latest bios, I had a problem with stability. System would crash randomly. Tried different ram. In my case, I suspect it was Gigabyte not updating the bios. The one they released for the board had pre-release microcode for 11th gen and I didn't see a newer one. In the end I just got a cheap B560 board and it has been fine since. Sold the old board with 10600k. Hope that isn't your situation too but I don't know what more to suggest at this point.

[YoungBlade]

As long as the RAM sticks themselves can handle it, the CPU will be fine.

 

One good thing for 11th gen is that it has arguably the best DDR4 memory controller ever. So if the RAM you have works with the 10600K, it'll be a cake walk for the 11900K.

 

The bigger issue with compatibility would be the motherboard. Depending on the exact model, you might have VRM overheating to deal with - the 11900K is a very power hungry chip.

 

I've also heard of stability issues with Z490 boards that was due to the PCIe systems not playing nice together. The 11th gen moved to Gen 4 and apparently some boards don't handle this well.

 

So don't worry about the RAM, but there could be other problems.

[SpudyFace]

49 minutes ago, porina said:

I also had a 10600k on Z490 board in the past. Dropped a 11700k in it with then latest bios, I had a problem with stability. System would crash randomly. Tried different ram. In my case, I suspect it was Gigabyte not updating the bios. The one they released for the board had pre-release microcode for 11th gen and I didn't see a newer one. In the end I just got a cheap B560 board and it has been fine since. Sold the old board with 10600k. Hope that isn't your situation too but I don't know what more to suggest at this point.

This is the reply I needed, because my 11900k really wanted to work. It was poping up in bios as expected and memory showed up as well.

Wanted to find someone else who tried to upgrade to 11gen on z490. Maybe 11900k with some cheap memory works even worse or in my case doesnt work at all.

[SpudyFace]

47 minutes ago, YoungBlade said:

As long as the RAM sticks themselves can handle it, the CPU will be fine.

 

One good thing for 11th gen is that it has arguably the best DDR4 memory controller ever. So if the RAM you have works with the 10600K, it'll be a cake walk for the 11900K.

 

The bigger issue with compatibility would be the motherboard. Depending on the exact model, you might have VRM overheating to deal with - the 11900K is a very power hungry chip.

 

I've also heard of stability issues with Z490 boards that was due to the PCIe systems not playing nice together. The 11th gen moved to Gen 4 and apparently some boards don't handle this well.

 

So don't worry about the RAM, but there could be other problems.

Well then I am really confused now.

 

If z490 boards have stability issues with PCIe systems, could the cause of these problems be OS installed on M2?

 

VRM overheating shouldnt be a problem here, because:

1) CPU doesnt even really get to do anything before it crashes

2) I have msi z490-a pro mobo and it has kinda decent VRM heatsinks that should do the work

[YoungBlade]

9 minutes ago, SpudyFace said:

Well then I am really confused now.

 

If z490 boards have stability issues with PCIe systems, could the cause of these problems be OS installed on M2?

 

VRM overheating shouldnt be a problem here, because:

1) CPU doesnt even really get to do anything before it crashes

2) I have msi z490-a pro mobo and it has kinda decent VRM heatsinks that should do the work

Looking at your motherboard's manual, all of the PCIe connections except for the graphics card run through the chipset. So the issues with PCIe would be between the CPU and the chipset itself.

 

The hypothesis I heard at the time is that Z490 boards were having issues with the fact that they were designed for Gen 3 CPUs, and didn't understand how to communicate this limitation to the 11th gen chips. Similar to how installing a PCIe Gen 3 graphics card in a PCIe 4 slot can sometimes result in issues at the Auto setting, even though in theory it should work just fine.

 

I would hope that any issues there would have been resolved with BIOS updates. I haven't heard about anyone having this issue in years, so I don't think it would be that common. But if you're having problems, I would look at the motherboard before I looked at the RAM, unless the RAM was giving you problems already with the 10600K.

 

That, or perhaps the 11900K itself is defective?

 

There's way more variables to this than just the RAM.

[SpudyFace]

55 minutes ago, YoungBlade said:

Looking at your motherboard's manual, all of the PCIe connections except for the graphics card run through the chipset. So the issues with PCIe would be between the CPU and the chipset itself.

 

The hypothesis I heard at the time is that Z490 boards were having issues with the fact that they were designed for Gen 3 CPUs, and didn't understand how to communicate this limitation to the 11th gen chips. Similar to how installing a PCIe Gen 3 graphics card in a PCIe 4 slot can sometimes result in issues at the Auto setting, even though in theory it should work just fine.

 

I would hope that any issues there would have been resolved with BIOS updates. I haven't heard about anyone having this issue in years, so I don't think it would be that common. But if you're having problems, I would look at the motherboard before I looked at the RAM, unless the RAM was giving you problems already with the 10600K.

 

That, or perhaps the 11900K itself is defective?

 

There's way more variables to this than just the RAM.

MSI Support also provided some questionable solutions at the start they told me that this mobo isnt compatable with 11900k and then after I linked supported CPUs from their webpage they just straight up told me that my RAM is faulty(not incompatible, but broken). I guess I have used 4 broken RAM sticks for like 3 years and didnt notice that, but who am I to judge I guess they know better¯\_(ツ)_/¯

 

Well I guess I will end my suffering with 11900k and get 10900k instead when it will appear on some local marketplace.