Foxconn 45GMX-45CMX paired with Intel Q8400 processorSystem configuration details
Foxconn 45GMX-45CMX paired with Intel Q8400 processorSystem configuration details
The name clearly indicated the goal, but many sources suggest avoiding dual-core CPUs. Are there any users who have tested a Core2Quad setup on this board? Thanks. Please don’t mind if my language isn’t perfect 
Identify which board you own. The 45GMX supports certain quad-core processors, while the 45CMX does not. Also, consider the games you're interested in playing—even with a high-end core setup, performance is limited to around 2013 for AAA titles but can handle lighter indie games today.
Opt for the q6600 instead of the q8400. Modify it to reach 3GHz, as the q8400 uses an 8x multiple while the q6600 has a 9x multiple. The board appears limited in FSB speed due to its older chipset. If you already own a q8400 model, consider replacing it with a Gigabyte G31 board, which typically hits around 500FSB easily. Not sure how far quadcores will go on a dual-core setup like the G31s2C, but you might need a higher-end board for better performance. If you have an ASUS G31 such as the P5KPL, you'll need to connect your drive via USB or SATA PCIe card, as the SATA controller fails beyond 400FSB. However, IDE HDDs are still detected.
Both 45CMX and 45GMX look good, but you're looking for a balance between performance and stability. For light overclocking and casual use, the Q6600 might be a better fit. The Q8400 offers more power but could be riskier if you're not comfortable with aggressive tuning. Consider your budget and confidence level before deciding.
What processor is installed right now? If you don’t already have a Q8400, consider upgrading to a Q6600. For those who want to retain the motherboard, opt for an Xeon X/E5450-70. Alternatively, you could replace the motherboard with a better model like the Gigabyte G31.
Your E2160 is compatible with the Q6600, but running it overclocked won't hurt your current setup. You should be able to try it without issues. As for the Q8400, it's also possible depending on the board's support, so you might want to check the manual.
Bsel q6600 is completely safe. I don't suggest the q8400 because it only operates at 2.66ghz and you can't push it much higher due to the chipset limitations. If you must have a q8400, consider a Gigabyte G31 board which easily hits 500MHz. Alternatively, skip the q8400 entirely and opt for an L5408 or E/L5430—they offer an 8x multiplier and a larger 12MB cache, which in my experience boosts performance noticeably compared to my e8200 at 3.8GHz running similarly to my e5400 at 4.3GHz.
I'm ready to try q6600. Perhaps I'll seek your assistance in the future when I attempt overclocking.
It seems like the setup might be the G series with a 1066MHz FSB core 2 quad configuration. That should function.