Part number Hp 381865-001. This cooler came in the HP dc 7600 computer ( released in 2006 ( release year is not 100% confirmed )

Bought it from a scrap shop in a buck
Initial Testing

Standard Heat

Very high heat

With stock fan an i7-2600 in stress testing hit around 80s or above in most of the cases.
I never had stock cooler i started with water cooling and then due to issues in that i came to this cooler. Initial tests weren't good at all so i tuned it to acceptance.
Now it can bee seen in the video @ 2:13 that by Intel burn test "very high" my CPU was throttling. Although my cores were hitting mid 70s. Why was it happening i had no idea ( I dnt think 70s can make a CPU throttle )
Although the issue was solved after tuning/modifying this cooler but i will really like someone to shed some light on throttling @ 2:13


Results after lapping and adding original fan
standard heat

Very High heat

Final thoughts:
1.Better then stock cooler.
2.Reduced my GPU temps as its sucking hot air from that area.
3.Much lower noise while idling and gaming
4.Not touching 70s while priming
5.Cools my mobo VRM too.
Cons
1.Cant be fitted on every 1155 socket mobo ( Biggest issue ) due to 2 Its less height n shape ( I installed it on Asus H61-me )
While stress testing its really noisy ( Its max rpm is above 4000 that is y)