Question i9 13900k showing wrong CPU (as i7 13700k)

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Aug 31, 2023
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Not sure if this is the right forum to ask this, is there another forum or area that's better suited?

I built my first pc in 15 years in April and was a bit of a learning curve, lost some hair in the process. There were some issues that I didn't resolve at the time as it seemed stable enough, I was able to complete the tasks I needed at the time and had enough of scrawling the internet for fixes. One of the main issues was the CPU overheating and constantly being 100 degrees (80ish when idle), but I read in a few places that the 13900k runs very hot and was not something to worry about so I moved on.

However I've had to do some rendering and getting the blue screen of death and the programme I've been using(sketchup/vray) has been frequently crashing. My first thought was to see if I can do something about the overheating cpu. I'm using a peerless assassin, I was thinking about upgrading to something more high end but from what I've read in various places it doesn't seem to be the issue here and it's not going to half my temps.

The crazy thing is everywhere is showing that my CPU is 12700k when it's a 13900k. In BIOS, CPUID, coretemp, task manager, device manager... everything reports it as the wrong processor. I just tried flashing the latest bios to no avail. Not really sure what other options I have, I've scoured the internet but there is very little out there. The box I have is for a 13900k, I'm more than certain when I looked at the back that's what was on the back. I dont have any paste to take it off and check atm but ordered some prime delivery. But I'm 95% sure it's the correct processor.
 
Not sure if this is the right forum to ask this, is there another forum or area that's better suited?

I built my first pc in 15 years in April and was a bit of a learning curve, lost some hair in the process. There were some issues that I didn't resolve at the time as it seemed stable enough, I was able to complete the tasks I needed at the time and had enough of scrawling the internet for fixes. One of the main issues was the CPU overheating and constantly being 100 degrees (80ish when idle), but I read in a few places that the 13900k runs very hot and was not something to worry about so I moved on.

However I've had to do some rendering and getting the blue screen of death and the programme I've been using(sketchup/vray) has been frequently crashing. My first thought was to see if I can do something about the overheating cpu. I'm using a peerless assassin, I was thinking about upgrading to something more high end but from what I've read in various places it doesn't seem to be the issue here and it's not going to half my temps.

The crazy thing is everywhere is showing that my CPU is 12700k when it's a 13900k. In BIOS, CPUID, coretemp, task manager, device manager... everything reports it as the wrong processor. I just tried flashing the latest bios to no avail. Not really sure what other options I have, I've scoured the internet but there is very little out there. The box I have is for a 13900k, I'm more than certain when I looked at the back that's what was on the back. I dont have any paste to take it off and check atm but ordered some prime delivery. But I'm 95% sure it's the correct processor.
About the only thing I can think of is you got ripped off and received a remarked chip. You need to call Intel asap and see what you can do to make this right. 😠
 
One of the ways to test it is benchmarking. Only do this do this when you are 100% sure that you have resolved the cooling problem. Do cinebench R23 and compare the results you got with both i7 13700K and the i9 13900K, whichever result is closer to one of these two, its likely that you will know what cpu you have, no matter what is written on the IHS. Keep ur cpu stock and compare it to the stock chips, not overclocked ones.
Or test it in PassMark.
i7 13700k
I9 13900k
 
@Lafong

Post a CPU-Z screenshot. The number of cores and threads will help confirm what you have.

The name and model are written to the CPU by Intel during manufacture. All monitoring software reads this information directly from the CPU. It does not make sense that Intel would write 13700K to a 13900K CPU but anything is possible.
 
Ok I took my cooler off and it's def a 13900k
The following has happened before, with other cpus:
-Someone bought that 13900K.
-They delidded it and their 13700K, and swapped the lids.
-Put the '13900K' back in its box and returned it.
-Amazon put it back up for sale as new.
-Scumbag got a 13900K at ~$200 discount.

Assuming the above is what happened, said scumbag likely didn't bother to do a proper TIM application on the cpu die.
 
Hey guys thanks so much for the replies. As it was suggested the lids were in fact switched, on closer inspection this morning you can see at the bottom (ignore the arm hair, yes it's an air hair) there's a slight gap at some parts where the lid meets the board. I spoke with amazon who instantly offered a refund which I was surprised about. But I was armed with the information between here and overclockers, and pre-empted that they would find my chip was probably a return though sold as new. The ridiculous thing is I had searched on my laptop (when autofill was suggesting terms last night after taking the chip out) about it being the wrong chip at the time but came across a post where someone suggested the mobo can detect the wrong chip if the BIOS predates the release of the chip you're trying to use. Along with everywhere saying the 13900k runs really hot I just assumed it was fine.

Have a bit of anxiety about returning the chip though as I've read similar stories about people being offered a refund and then the item going missing. They won't collect it which is concerning, but have sent me a QR to drop off at the local post office.

So glad I wrote on the forums as I was planning on trying to reseat with paste I have coming today, failing that shelling out £200 for a new cooler that I can't really afford atm due to my car dying on me last week and needing replaced.

So thanks again, have a great weekend!





 
Hey guys thanks so much for the replies. As it was suggested the lids were in fact switched, on closer inspection this morning you can see at the bottom (ignore the arm hair, yes it's an air hair) there's a slight gap at some parts where the lid meets the board. I spoke with amazon who instantly offered a refund which I was surprised about. But I was armed with the information between here and overclockers, and pre-empted that they would find my chip was probably a return though sold as new. The ridiculous thing is I had searched on my laptop (when autofill was suggesting terms last night after taking the chip out) about it being the wrong chip at the time but came across a post where someone suggested the mobo can detect the wrong chip if the BIOS predates the release of the chip you're trying to use. Along with everywhere saying the 13900k runs really hot I just assumed it was fine.

Have a bit of anxiety about returning the chip though as I've read similar stories about people being offered a refund and then the item going missing. They won't collect it which is concerning, but have sent me a QR to drop off at the local post office.

So glad I wrote on the forums as I was planning on trying to reseat with paste I have coming today, failing that shelling out £200 for a new cooler that I can't really afford atm due to my car dying on me last week and needing replaced.

So thanks again, have a great weekend!





For all the work, deceit, mailing back and forth, spending money, just for $200 or so is just a comment on soceity. Hope all work out for you. When you get your new , correct cpu, I would try disabling the MCE (Multi core Enhancement) in your bios, along with setting your motherboard to Air Tower cooler (also in Bios settings). That would restrict all the crazy wattage trying to burn up your cpu. Just post when you get it and we will all try to walk you through cooler settings for your air cooler.
 
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The heatsink of the cpu can be faked, if it shows as cpu 12700 check the total number of cores/threads and put it in another motherboard to check the information, the best way is to use the z table to see if it can overclock or not. This is a comparison image between two real and fake CPUs, you can see that the letters engraved on the heatsink are 99% similar to the real processor, making it almost difficult to distinguish if the two CPUs have the same socket design.
20230902-191122.jpg