PC Fails to Boot with New CPU

[MeatyHams]

Hi!

 

   I just received a new i5-9600k, which I bought to replace my i5-6600k. Unfortunately, after installing, the system appears to fail the POST.

 

Details:

   I am installing to a MSI Z170A SLI board, and using an h100i v2 along with 2 sticks of ram, installed in their proper slots. The system does still boot fine once I reinstall the 6600k.

 

   My current suspicions are first an issue with the socket (I'll elaborate shortly), with the Mobo bios, or perhaps with the chip itself.

 

   As I was installing the new chip, I saw that there was a small amount of thermal paste along the edge of the socket. I've cleaned it as well as I could so far, but it has been impossible to get most of it out without bending the pins. After this process, I triple checked for bent pins, and didn't find any. Also, the paste I am using is corsair brand zinc oxide paste (no, not arctic silver paste. Sue me). I'm not sure if the pin configurations are different enough that the 6600k might run fine while the 9600k could be blocked by a small amount of the paste.

 

   I'm out the apartment right now, and posting from my phone, but I can later attach pictures or maybe even a short video of the system failing to boot, if that would be helpful in helping me troubleshoot this.

 

Thank you.

 

 

 

 

 

 

[XAIXER]

8th Gen CPUs require a new motherboard, since they are not compatible with the original series.

[Falkentyne]

3 minutes ago, MeatyHams said:

Hi!

 

   I just received a new i5-9600k, which I bought to replace my i5-6600k. Unfortunately, after installing, the system appears to fail the POST.

 

Details:

   I am installing to a MSI Z170A SLI board, and using an h100i v2 along with 2 sticks of ram, installed in their proper slots. The system does still boot fine once I reinstall the 6600k.

 

   My current suspicions are first an issue with the socket (I'll elaborate shortly), with the Mobo bios, or perhaps with the chip itself.

 

   As I was installing the new chip, I saw that there was a small amount of thermal paste along the edge of the socket. I've cleaned it as well as I could so far, but it has been impossible to get most of it out without bending the pins. After this process, I triple checked for bent pins, and didn't find any. Also, the paste I am using is corsair brand zinc oxide paste (no, not arctic silver paste. Sue me). I'm not sure if the pin configurations are different enough that the 6600k might run fine while the 9600k could be blocked by a small amount of the paste.

 

   I'm out the apartment right now, and posting from my phone, but I can later attach pictures or maybe even a short video of the system failing to boot, if that would be helpful in helping me troubleshoot this.

 

Thank you.

 

 

 

 

 

 

You can't use a 9th gen CPU in a Z170 or Z270 board, without doing a CPU or board level hardware mod and a bios mod.

[-rascal-]

As already mentioned, Intel 100 and 200 series motherboard does not support Intel 8th and 9th generation Processors.

You will need a 300 series motherboard -- Z370 or Z390 is the most ideal for an unlocked K-CPU.

 

The socket is the "same" LGA 1151, but there are TWO REVISIONS.

Revision 1 is the 100 and 200 series.

Revision 2 is the 300 series.

Socket size is the same, but some of the pins were moved around / reassigned, and unused pins are now connected.

Quote

The LGA 1151 socket was revised for the Coffee Lake generation CPUs and comes along with the Intel 300-series chipsets.^[31] While physical dimensions remain unchanged, the updated socket reassigns some reserved pins, adding power and ground lines to support the requirements of 6-core and 8-core CPUs. The new socket also relocates the processor detection pin, breaking compatibility with earlier processors and motherboards. As a result, desktop Coffee Lake CPUs are officially not compatible with the 100 (original Skylake) and 200 (Kaby Lake) series chipsets.^[32] Similarly, 300 series chipsets officially only support Coffee Lake and are not compatible with Skylake and Kaby Lake CPUs.
 

Socket 1151 rev 2 is sometimes also referred to as "1151-2".

 

[MeatyHams]

13 hours ago, -rascal- said:

As already mentioned, Intel 100 and 200 series motherboard does not support Intel 8th and 9th generation Processors.

You will need a 300 series motherboard -- Z370 or Z390 is the most ideal for an unlocked K-CPU.

 

The socket is the "same" LGA 1151, but there are TWO REVISIONS.

Revision 1 is the 100 and 200 series.

Revision 2 is the 300 series.

Socket size is the same, but some of the pins were moved around / reassigned, and unused pins are now connected.

 

Ack! You're right! I'm now kicking myself for the mistake, but I am at least glad that I didn't fry any components.

I think I'll go ahead and install a Z390 motherboard; it's about time for an upgrade anyway.

 

Thank you for your help!