I have been trying to overclock my system fro a while now and cant seem to get past 2.74ghz. I have searched a lot of boards and see that the processor and motherboard are able to overclock fairly well yet I cant do it.
My current setup is...
CPU: e8200 @ 2.74ghz
Mobo: Gigabyte G41M-ES2L (latest BIOs rev.)
RAM: 2gb Kingston RAM (5-5-5-15 @ 2.0v) single channel (FSB 1:1)
GPU: Sapphire 4850 512mb
PSU: Thermaltake W0070RUC (430w)
Drive 1: Western Digital Raptor 36.7gb
Drive 2: Western Digital Caviar Green 750gb
Monitor: ASUS MS202N (1600x900)
If anyone has some insight on what I can try would be great. If you need more information from me please let me know.
You did not mention cooling.....I also have to say that PSU is a little iffy in both wattage and quality. Cutting it close with the 4850. Standard DDR2 800 should run 5-5-5-15 at 1.8v. Is it overclocked? If it is designed to run 5-5-5-15 at 2v that could be holding you back.
The ram is easy so I'll mention that first. Jedec standards call for 1.8V to be the "official" voltage for DDR2 memory. When you load the "optimized" values its reading the chart on the ram sticks and loading official settings. You can get your timings down to 5-5-5-15, but you have to up the voltage to 2.2. Its up to you either way, it shouldn't matter for your overclock. Just make sure you run it at 2.2 if you go for the 5 timings. Your ram isn't rated to do 5 timings at 1.8v.
As for your overclock, have you tried dropping the multiplier? I'm wondering because you have a G41 board and they aren't known for overclocking. Drop the multiplier down to x6 which should be as low as it goes. Start upping the FSB until you can't do it anymore.
Edit: Forgot to ask, whats the Vcore? By dropping the multiplier you shouldn't need to worry about this yet but you might need to for the final OC.
To be honest I'm not sure how far you'll be able to OC. A G41 board with RAM that needs 2.2V to hit CL5 timings isn't a good setup. Try to figure out how high your board can hit and we can take it from there.
4745454b: Will it make a difference if I run my RAM at the boards default of 6-6-6-18 @ 1.8v instead of going to 5-5-5-15 @ 2.2v for the overclock?
I have not played around with the multiplier much. So I should take the multiplier down to 6 and then do small incremental bumps on the FSB in order to see how far I can take it before the default BIOs takes over? I dont know what the Vcore is at right now. I will have to check when I get home.
Raidur: At this point my main goal has been to reach 2.75ghz since I cant get it over the 2.74ghz mark. I wouldnt mind taking it closer to 3.0ghz if possible. I am currently using an Acrtic Freezer Pro 120mm HSF.
It shouldn't make any difference on the ram. Its been rated to run at 6-6-6-18 if you use 1.8v, or 5-5-5-15 if you use 2.2v. Its generally a sign of cheap ram however. Mine is 5-5-5-15 at 1.8v. I could probably use 4-4-4-12 if I upped it to 2.0-2.2v. For OCing attempts and to rule your ram out as a possible problem you might want to run 6-6-6-18 with 2.0-2.2v. Also, make sure it doesn't go above DDR2-800. You should still use CPUz to make sure your ram is at DDR2-686 like you think it is.
It runs stock at 333 x 8. You should be able to keep it at 8 and bump it up to 400MHz giving you 3.2GHz. Nearly all C2Ds can hit this. If your ram is 1:1, then it should be at DDR2-800. You have 45nm CPU, so 4.0GHz might be possible. 3.2GHz should be a walk in the park. The only reason I can think of as to why you couldn't would be the G41 board or the poor memory. Use the right divider however and the ram shouldn't play a part in this.
Alright. So I tried doing what you said with the RAM. I did verify that it is 1:1 and kept the voltage between 2.0-2.2. I have not been succesful in overclocking even when lowering multiplier and going up incrementally. I guess I may just be screwed on this setup. Im guessing the RAM has something to do with it although it is Kingston HyperX, yada yada. Or maybe the G41 board is garbage.