T440p CPU Upgrade - Socket Type Details

[muse12344321]

I have a Lenovo T440p (20ANS04504; rPGA947 socket) notebook that currently has an i5 dual-core CPU. I want to upgrade it to an i7 quad-core CPU.

The original CPU is an i5 with the following FRU: 04X4051

I have purchased the CPU below:

Intel Core i7 Processor
i7-4900MQ, 2.8GHz, 8MB Cache
Product Code: BX80647I74900MQ
S-spec: SR15K
S/N: 2W305002A1436
Batch: J307A421

After I place the i7 CPU in, when I power up, the power button remains lit (green) for 8 seconds then powers off. There is no error code nor a prompt for ThinkPad setup. When a swap the old processor back, I am able to boot.

I've talked to a few places and they have stated that it may be due to an incompatible socket type.

I looked at Intel's site and it states that the FCPGA946 is a supported socket type - http/ark.intel.com/products/75131/Intel-Core-i7-4900MQ-Processor-8M-Cache-up-to-3_80-GHz

I looked at CPU World' site and it states that the rPGA946b is the supported socket type - http/www.cpu-world.com/sspec/SR/SR15K.html

The FCPGA946 socket seems to be compatible with my rPGA947 socket since they are both G3. Wiki says "Socket G3, also known as rPGA 946B/947 or FCPGA 946, is a socket for Intel microprocessors that supports Haswell-based mobile CPUs."
Source: https/en.wikipedia.org/wiki/Intel_Socket_G3

I have read that the "rPGA947 has one extra pin hole, but otherwise it is similar to the rPGA946. The i7-4700MQ and other socket G3 processors will fit into it."

I have ran Lenovo's system update and confirmed that the BIOS is the latest. Any insight would be greatly appreciated.

 

[Phillip Corcoran]

Just because a particular CPU fits the motherboard socket doesn't necessarily mean it's compatible with that motherboard or BIOS, otherwise the retail board manufacturer's wouldn't bother to publish CPU compatibility tables.

If you've got the latest BIOS already, either that CPU isn't compatible with the board, or the BIOS maker hasn't released a BIOS version which supports that CPU model.

 

[ffg7]

it should work.
◦4th Gen Intel® Core™ i3-4000M (Up to 2.40 GHz, 3MB)
◦4th Gen Intel® Core™ i5-4200M (Up to 3.10 GHz, 3MB)
◦4th Gen Intel® Core™ i5-4300M (Up to 3.30 GHz, 3MB, L3, 1600 MHz)
◦4th Gen Intel® Core™ i5-4330M (Up to 3.50 GHz, 3MB, L3, 1600 MHz FSB)
◦4th Gen Intel® Core™ i7-4600M (Up to 3.60 GHz, 4MB, L3, 1600 MHz FSB)
◦4th Gen Intel® Core™ i7-4700MQ (Up to 3.40 GHz, 6MB)
◦4th Gen Intel® Core™ i7-4800MQ (Up to 3.70 GHz, 6MB, L3, 1600 MHz FSB)
◦4th Gen Intel® Core™ i7-4900MQ (Up to 3.80 GHz, 8MB, L3, 1600 MHz)
http/shop.lenovo.com/ca/en/laptops/thinkpad/t-series/t440p/#tab-tech_specs
have you talked to Lenovo about this?