Slow P7P55D PRO with i5 750

Hello everybody and thank you for having this "place" to turn to for beginners.

I have the following system:

MOBO - ASUS P7P55D PRO LGA 1156 Intel P55 ATX Intel Motherboard.

CPU - Intel Core i5-750 Lynnfield 2.66GHz 8MB L3 Cache LGA 1156 95W Quad-Core Processor BX80605I5750

RAM - Avexir 2G Blitz 4GB kit (2GB x 2) dual channel 240-pin DDR3 1600mhz 7-8-7-21 DIMM

PSU - Mushkin Enhanced XP-650 Power Supply 650W

CASE - Antec Three Hundred Illusion Black Steel ATX Mid Tower with 4 120 mm Case Fans

HEATSINK - Cooler Master RR-B10-212P-G1 Hyper 212 Plus 775/1156/1366/AMD/AM2/AM3 Universal Direct Contact Heat-Pipe 120mm Fan CPU Cooler

GPU - EVGA 01G-P3-1158-TR GeForce GTS 250 1GB 256-bit DDR3 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card

Now here is the problem I am having with OC: I used TurboV EVO in Auto Tuning mode, software that came with the MOBO to OC. After several itirations and re-boots it settled in on 3.30 GHz, BCLK Freq 157 MHz, CPU Voltage 1.1125, IMC Voltage 1.1 and DRAM Bus Voltage 1.75. I played around with some other levels based on what I read in this forum but the system froze each time.

I see several in this forum easily reach over 4 gigs with this processor and board and since I mostly use FSX for simming I would love to do the same.

Any advice is much appreciated!

I would suggest not using and relying on software like TurboV to do the overclocking for you, but instead manually overclocking from within the BIOS. If you're unfamiliar w/ overclocking related BIOS settings and terminology, then give Miah's overclocking guide for the Lynnfield a read through...

http://www.techreaction.net/2010/09/07/3-step-overclocking-guide-lynnfield/