if the 2nd stick of matched memory is present in slot 2, it simply powers up for 10 seconds, powers down, powers up, and the cycle continues.
That might be caused by the poor contact between the i7-4790k and mobo, and/or the second memory module and the 2nd memory slot. What you might do is to clean the bottom of CPU chip (be careful) and clean the dust from the 2nd slot. Then you can try again!
If the problem is still unsolved, you'd better test this processor on another mobo, if it works well. It might be the compatibility problem, even if it says this processor is supported on the official website.
Last but not least, updating BIOS and cleaning the bottom of processor might damage the system and processor itself, so please pay much attention, and everything is AT YOUR OWN RISK!
Thanks for both replies:
Yes, I flashed to the latest BIOS of F9 for what is V1.00 of the board, I even flashed back to the previous version which is F8, this made no difference.
I have used both modules in another board, and tried other matched memory, and still I get the same results with the i7
I would dismiss memory and the slot as the i5 I have does not exhibit the same behaviour, and works perfectly with both slots occupied, unfortunately I do not have a spare S1150 board to test the processor, I can only think it is a weird compatibility error or a problem with the processor.
Many thanks for both replies
This may be a CPU issue, since the Motherboard manufacturer testes and added the CPU to the compatibility list (since BIOS F7 as per their website)
Also, another CPU was tested in the Motherboard so that would be another clue to say it is a bad CPU, indeed testing the processor in a different Motherboard would be helpful for troubleshooting purposes.
If the problem persists after changing the Motherboard, you could get the warranty from the re-seller if within the first 30 days after the date of purchase, if not please contact the Intel Customer Support for warranty check.
Hello Esteban C,
Please allow me to insert some words. I5-3570 is another kind of CPU, which sits on socket 1155 rather than 1150 which i7-4790k. In other words, Tonylles has two systems, the only shared components are the two memory modules, not that motherboard at all! In my old experiences, there is nothing wrong with i7-4790k, memory modules and even that motherboard. The cold boot fails might be caused by so many weird reasons. So I just suggest Tonylles to test the processor and motherboard independently, with another processor or with another motherboard. In my own opinion, it is not the CPU issue at all!