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Old CPU boots fine but when new CPU put in there is no display

Go to solution Solved by Fasauceome,

The CPU could be dead. The B250 chipset is compatible by default with every 7th gen Intel CPU so updating the BIOS won't make a difference. Since your system still works with the pentium, you didn't break anything when installing the new CPU.

 

Or the CPU is rejecting your ram and you need to try with different ram or placing the ram in different slots.

I have a b250m-k motherboard and have upgraded from a pentium g4560 to an i5 7400 however when I installed the i5 the only thing that happens is all the fans run except the GPU which runs for a few seconds and switches off. After this I re-installed the pentium and it booted perfectly to BIOS. I have updated my BIOS to the latest version and attempted to the CMOS but I am unsure if this worked. Any help would be greatly appreciated thank you!

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The CPU could be dead. The B250 chipset is compatible by default with every 7th gen Intel CPU so updating the BIOS won't make a difference. Since your system still works with the pentium, you didn't break anything when installing the new CPU.

 

Or the CPU is rejecting your ram and you need to try with different ram or placing the ram in different slots.

I WILL find your ITX build thread, and I WILL recommend the SIlverstone Sugo SG13B

 

Primary PC:

i7 8086k (won) - EVGA Z370 Classified K - G.Kill Trident Z RGB - Force MP500 - Jedi Order Titan Xp - Hyper 212 Black (with RGB Riing flair) - EVGA G2 650W - Black and green theme, Razer brainwashed me.

Draws 400 watts under max load, for reference.

 

Linux Proliant ML150 G6:

Dual Xeon X5560 - 24GB ECC DDR3 - GTX 750 TI - old Seagate 1.5TB HDD - Dark moded Ubuntu (and Win7, cuz why not)

 

How many watts do I need? Seasonic Focus threadUserbenchmark (Et al.) is trash explained, PSU misconceptions, protections explainedgroup reg is bad

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1 minute ago, Levent said:

Was that i5 second hand? 

yes but apparently working.

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1 minute ago, Fasauceome said:

The CPU could be dead. The B250 chipset is compatible by default with every 7th gen Intel CPU so updating the BIOS won't make a difference. Since your system still works with the pentium, you didn't break anything when installing the new CPU.

oke thanks for the help

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52 minutes ago, Fasauceome said:

The CPU could be dead. The B250 chipset is compatible by default with every 7th gen Intel CPU so updating the BIOS won't make a difference. Since your system still works with the pentium, you didn't break anything when installing the new CPU.

 

Or the CPU is rejecting your ram and you need to try with different ram or placing the ram in different slots.

You guys are such legends! I moved my RAM stick to the other slot and it booted! Thanks a lot

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