Upgraded CPU to i7-4790k = No boot

[andrewtn]

I have been reading through all the posts and advice on these forums.

Computer: Lenovo TS140
Old CPU: i3-4130
New CPU: i7-4790k LGA1150

Through troubleshooting suggestions I unplugged everything possible, removed all but one memory stick. I also updated the bios to what I believe is the latest version (FBKTCWAUS 2/6/18).

If I put the old CPU back in it boots fine. New CPU seated in the proper direction (arrows matching) and I get nothing except for fans spinning. No startup beeps at all. If I try to boot with no CPU I also get nothing except fans spinning.

I also tried removing the battery for several minutes. Any ideas?

System Manufacturer LENOVO
System Model ThinkServer TS140
System Type x64-based PC
System SKU LENOVO_MT_Thin_BU_LENOVO_FM_70A4000HUX
Processor Intel(R) Core(TM) i3-4130 CPU @ 3.40GHz, 3400 Mhz, 2 Core(s), 4 Logical Processor(s)
BIOS Version/Date LENOVO FBKTCWAUS, 2/6/2018
SMBIOS Version 2.8
Embedded Controller Version 1.13
BIOS Mode Legacy
BaseBoard Manufacturer LENOVO
BaseBoard Model Not Available
BaseBoard Name Base Board
Platform Role Desktop
Secure Boot State Unsupported
PCR7 Configuration Binding Not Possible
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "10.0.17134.1"

 

[XxDarkMarioxX]

I do not think your new CPU is compatible with the motherboard that your computer is using

According to the google that searched the computer up on

Processor
1 Intel Xeon E3-1200 v3 Series or Intel Core™ i3 Series

 

[andrewtn]

The motherboard has Lenovo IS8XM printed on it, for what its worth..

 

[dudmont]

Check lenovo's site and check for info on bios that support Haswell R.

 

[andrewtn]

The i7 box it came in says LGA1150 which should match the motherboard. Bios was just updated today as explained in my post.

 

[captaincharisma]

that's a refresh CPU so you would need a BIOS update for it to work. your problem is its a brand name CPU so they are not upgrade friendly when it comes to newer CPU's like this

 

[dudmont]

The i7 box it came in says LGA1150 which should match the motherboard. Bios was just updated today as explained in my post.

It should, but it might not. Haswell R is the same cpu socket, but the bios has to explicitly been changed to support the new(er) chips. It's the central question you're dealing with.