Xeon 5690x cooling

[Beat_my_Laptop]

Until I get the parts for my build I'm leaving the dual cpu precision t5500 I picked up to cannibalize for parts intact for amusement. Steadily I've been raising it's R23 cinebenches: cleaning heatsinks, cleaning fans, removing the hard drive rack thing, yanking out every dummy panel & useless part. Now I've upped the scare by 70 points (not insane but not nothing) & made jumps in single core performance dropping my mp from x14.8 to x14.45 (12core system). So it's not thermal throttling, but it's downclocking CPU 1 because it's heatsink is half the size of the heatsink on CPU 2.

 

Since it's my donor PC I don't want to invest in it, but is there anything else free/creative (I have tools, time, & scrap materials galore) that I can do to it to see how I can raise the benches higher? Rn my best idea is the disconnect the primary cooling fans from the motherboard & over power them separately from another power source (ie. A couple nine volts) & see if that spins them faster.

 

Anyone with experience is welcome to weigh in but someone with Xeon, thermal, or precision tower experience would be kick ass to hear from.