traderjay,
Here are the modded BIOS file to unlock the turbo. I tested it on my X10SRL-f motherboard last night and it worked fine.
mod_X10SRL-f.zip
I included EFI files also. So you should load one of them before getting into OS.
Before and
After
Cinebench R15 score: Before: 1500, After: 1725.
CPU-Z (v1.79) multi-score: Before: 3934, After 4552.
Again, I am currently using E5-2658 v3 QS chip on this motherboard so there is no different on single core performance, but multi-threads performance is improved from 2.5Ghz all cores to 2.9 all cores after mod.
And, here is my BIOS settings. You may tweak them if it is needed.
CPU Configuration
---------------------------
Hyper-Threading (ALL) - [Enable]
Cores Enabled - [0]
CPU Configuration -> Advanced
---------------------------
Power Technology - [Custom]
Energy Performance Tuning - [Disable]
Energy Performance BIAS setting - [Performance]
Energy Efficient Turbo - [Disable]
Advanced -> CPU P State Control
--------------------------------
EIST (P-States) - [Enable]
Turbo Mode - [Enable]
P-State Coordination - [HW_ALL]
Advanced -> CPU C State Control
--------------------------------
Package C State Limit - [C0/C1 state]
CPU C3 Report - [Disable]
CPU C6 Report - [Enable]
Enhanced Halt State (C1E) - [Disable]
CPU T State Control
-------------------
ACPI T-States - [Enable]
Last, Windows OS Power Options - High Performance
Let me know if you need anything.