Gigabyte GA-P55-UD3L-rev-2.3 what socket does it use / CPU upgrade

[furikusan]

First of all i want to warn that I'm not really good with all those motherboard chipsets, Cpu generations and I don't speak english natively.
I have the GA-P55-UD3L-rev-23 motherboard
https://www.gigabyte.com/Motherboard/GA-P55-UD3L-rev-23#ov
The CPU on the board is an i7 920.
I found on wikipedia https://en.wikipedia.org/wiki/List_of_Intel_Core_i7_microprocessors#Nehalem_microarchitecture_(1st_generation) and intel ark https://ark.intel.com/products/37147/Intel-Core-i7-920-Processor-8M-Cache-2-66-GHz-4-80-GT-s-Intel-QPI- that the CPU is 1st Gen "Bloomfield", and that the socket on CPU is LGA 1366, The motherboard however supports LGA1156 as mentioned in the product overview with the link above. The CPU i use is not even on the supported CPU list which mainly lists 1st gen "Lynnfield". https://www.gigabyte.com/Motherboard/GA-P55-UD3L-rev-23#support-cpu

My questions then:
- IS the LGA1366 Some older gen of LGA and it can run socket LGA1156 CPUs or other way around.
- Could it be that the Motherboard is some sort of LGA Frankenstein with dual socket compatibility
- Could my motherboard support some LGA1156/1366 CPU that was not available when the Motherboard was released - so maybe with a BIOS update i could use later gen of CPU
- Can i upgrade my CPU to some other LGA 1366/1156 processor Like Xeon or something? Nowadays many different new/used CPU are available on ebay and other websites so surly there are some options. Any suggestions here?

 

[Barty1884]

1366 was the HEDT (high-end desktop) variant of the 1156 chips. X58 would be it's chipset.

The P55 does not support an i7-920.... so something is clearly wrong there.

How are you determining the CPU installed?

Responses to your questions:
1. No.
2. No. CPU Support: https://www.gigabyte.com/Motherboard/GA-P55-UD3L-rev-23#support-cpu
3. No.
4. You could upgrade to any CPU that is on the support list linked above.

 

[furikusan]

i recall the name i7 920 written on the IHS i think that's what that metal top of the CPU is called, i did instal CPU Z as its a way i can inspect what cpu is on board. And clearly i need to see an eye doctor cause the CPUz says i7 870.