Over clocking old core2duo
Over clocking old core2duo
i own an old core 2 duo e8400 in my brother's computer, but i can't overclock it when going above 343, which is a 3.08ghz speed. the pc won't boot up. i increased the voltage to 1.35v but it still doesn't work, and i also tried 1.36 without any improvement. i noticed others have managed to clock the same cpu up to 3.8~4.2ghz, but i can't go beyond 3.08ghz. the motherboard is g41 s2pt and the psu is 500 watts. please help me, it would really mean a lot.
Hey, what RAM are you using? When I upgrade the E8400 (a CPU I owned before), the resulting CPU ratio is FSB multiplied by the multiplier. If possible, stick to a consistent FSB and tweak the CPU clock using the multiplier. For example, with DDR2 800, choosing FSB 400 x 8 gives you around 3.2GHz, which should boost performance nicely. DDR2 667 might limit you to just about 3GHz. 😉
Hello, which RAM are you using? When I upgraded the E8400 (a CPU I owned before), the resulting CPU ratio was FSB multiplied by the multiplier. If possible, stick to a consistent FSB and tweak the CPU clock using the multiplier. For example, with DDR2 800 installed, choosing FSB 400 x multiplier 8 would give you around 3.2GHz, which should boost performance nicely. A DDR2 667 might be limiting you to just about 3GHz. 😐
My RAM is 1333 DDR3, so what FSBxMultiplier should I use?
Update: It seems lowering the multiplier stopped my PC from booting above FSB 343—possibly a motherboard issue or something else.
Which motherboard is this? There aren't many 1155 slots that support DDR3. As mentioned before, try a multiplier of 8 and an FSB of 400 to check if stable 3.2GHz performance is possible.
Which motherboard are we talking about? There shouldn't be too many 1155 slots supporting DDR3. As mentioned before, try a multiplier of 8 and an FSB of 400 to check if you can get stable 3.2Ghz performance. My board is G41 S2PT and I've tried lower multipliers but still can't boot if the FSB is higher than 343.