Question Overclock core2duo e8500
Question Overclock core2duo e8500
Hey everyone, I have a Core2duo e8500 at 3.16 GHz, a gigabyte Ga-g31 SSD, 4 GB DDR2 RAM, a Zotac GT 730 graphics card, and a 450W PSU. I realize my system is quite old, but I’m trying to overclock the CPU to around 4 GHz. Could you please share some guidance on how to do this and what voltage settings are recommended? Looking forward to your help. Thanks!
Increase the FSB until you can no longer boot, then push 20MHz, use F10 to save exit to BIOS directly, rinse and repeat. When you reach around 300 MHz, raise the north bridge voltage by one notch and press the keyboard, rinse and repeat. Set the RAM voltage to 2.1V. When you encounter a wall at approximately 400 MHz or before, adjust the CPU voltage according to your CPU's speed; eventually you'll hit the RAM FSB limit at 1333. Also configure the RAM to run at 400 divided by the number specified. You should see in the CPU-Z memory tab that 450 is your limit. RAM timings options are 5-5-5-15, 5-5-5-18 or 6-6-6-18 (depending on your case, motherboard, etc.), note that 5+5+5 equals 15, which can vary by ±1).
Thank you for your reply. Based on my bios, here are the settings for the MB Intellegent tweaker:
Robust graphics booster = Auto
CPU Clock ratio = 9x
Fine CPU clock ration = +0.5
CPU Frequency = 3.16 GHZ (333x9.5) [Inactive]
CPU host clock control = Disabled
CPU host frequency = 353 [Inactive]
PCI Express frequency (MHZ) = auto
Performer Enhance = Standard
System memory multiplier = Auto
Memory Frequency = 667 [Inactive]
I wouldn't recommend using the "Fine CPU clock" until you've completed overclocking. Reduce the CPU clock ratio by 1 to boost the CPU Host frequency (also known as FSB). PCIE Express should lock at 100MHz. DDR2 overvoltage options are available, but for FSB speeds, you'll need more voltage—likely your maximum FSB will be around 400. Start by increasing "CPU host frequency" by 10Mhz, then save and exit to BIOS until the system stops booting. Then go back to the normal "System voltage" setting and press + on the numpad, repeating the process. Once you reach your target, apply a reduction of 10Mhz in Windows (or upon restart) if the OS detects it. For long-term stability, run Prime95 without AVX for 4-6 hours and Memtest for 4-6 hours to ensure high performance and maximum overclock potential from your motherboard. However, results may vary depending on the board I've used before; I often pushed every voltage setting up to the limit except CPU, achieving around 4.5GHz on dual-core processors.