I've got a gigabyte 7n400 pro with a 2400xp-m. I currently have my processor overclocked to 2500mhz (12.5x200) but can't seem to go any higher. Voltage is set at 1.7. I realize this may be the max on air but I want to make sure I've tried everything first. I've tried a lower multiplier but I can't get the FSB to go much over 200mhz. I think that maybe the memory is holding me back. I have muskin lvl 1, ddr 400, with the timings set at 2.5-2-3-6. I have seen people talking about using 3:2 ratio instead of 1:1. In bios, I have a setting called Memory Frequency. Would this change the ratio? If not, what is it? The default setting is "by spd". The frequency can be set anywhere between 50% - 200%. Otherwise, I guess there is no way to change the ratio on this mobo. My second question is, what is CPU Thermal-Throttling? This has the default set at 50%. It can be set anywhere between 12.5 - 87.5. What else can I play with to try to get a higher OC?
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OC question on a gigabyte mobo
- Thread starter postalcop
- Start date
I dont have that board but while you are waiting for a Gigabyte expert to surface here is my 2 cents.
I too think it is your memory. At 200 FSB you are at the memorys specs (DDR400 = 200 FSB) with tight timings. The memory is performing per spec but there is not much headroom for increases. But to find out, loosen your ram timings up to like 2.5 - 4 -4 -8 even 3 -6 -6 -12 would not hurt to try if you can set it that loose and see if you can raise the fsb any more, If you can it most likely is the memory. Trouble is the XP machnes really should have a 1 to 1 ratio for best performance so you are stuck with loosening the timings or buying faster ram. Benchmark tests would prove if increasing the FSB and processor speed offset the looser ram timing (they usually do ). Running anything other than 1 to 1 will really hurt your performance in general.
yes that would change your fsb to memory speed ratio.
make sure your memory frequency is set the same as your FSB (100%), you will have to read you manual to see how they interact. Hopefully at memory frequency set at %100 it will track the FSB. Yes you can force the ratio that way and it might help you test your max cpu speed. set memory frequency to 75% with loose timings and see if you can raise your FSB but XP systems dislike that so much that while your CPU might run faster the waits imposed by an non 1 to 1 ratio will most likely make overall performace suffer. no harm in using to test tho. If you can then pump your CPU up it does point to the memory the bottleneck.
AMD64's and intel chips are exceptions but we are talking XP here so the above applies.
I cant get over 2.52 GHz stable out of my moble on water cooling no matter what so you might have hit the ceiling
Thre should be a temp setting in conjunction with the cpu throttling. Not sure its implemented fully but the idea is that when your CPU hits the temp preset the clock is reduced by the amount specified. I just set mine to the max temp I ever want to see on my CPU , 60C in my case, with water cooling it should never get that hot, I hope, then have it throttle back the cpu by 50% which I think I would notice the slow down and then go see what the heck is going on.
turn off spread spectrum.
I too think it is your memory. At 200 FSB you are at the memorys specs (DDR400 = 200 FSB) with tight timings. The memory is performing per spec but there is not much headroom for increases. But to find out, loosen your ram timings up to like 2.5 - 4 -4 -8 even 3 -6 -6 -12 would not hurt to try if you can set it that loose and see if you can raise the fsb any more, If you can it most likely is the memory. Trouble is the XP machnes really should have a 1 to 1 ratio for best performance so you are stuck with loosening the timings or buying faster ram. Benchmark tests would prove if increasing the FSB and processor speed offset the looser ram timing (they usually do ). Running anything other than 1 to 1 will really hurt your performance in general.
yes that would change your fsb to memory speed ratio.
make sure your memory frequency is set the same as your FSB (100%), you will have to read you manual to see how they interact. Hopefully at memory frequency set at %100 it will track the FSB. Yes you can force the ratio that way and it might help you test your max cpu speed. set memory frequency to 75% with loose timings and see if you can raise your FSB but XP systems dislike that so much that while your CPU might run faster the waits imposed by an non 1 to 1 ratio will most likely make overall performace suffer. no harm in using to test tho. If you can then pump your CPU up it does point to the memory the bottleneck.
AMD64's and intel chips are exceptions but we are talking XP here so the above applies.
I cant get over 2.52 GHz stable out of my moble on water cooling no matter what so you might have hit the ceiling
Thre should be a temp setting in conjunction with the cpu throttling. Not sure its implemented fully but the idea is that when your CPU hits the temp preset the clock is reduced by the amount specified. I just set mine to the max temp I ever want to see on my CPU , 60C in my case, with water cooling it should never get that hot, I hope, then have it throttle back the cpu by 50% which I think I would notice the slow down and then go see what the heck is going on.
turn off spread spectrum.
Hey, thanks for the response. You pretty much answered my questions. I had looked in the manual but the only thing it said about the memory frequency was that it was for "Power Users only." It didn't really explain what it was though. I didn't realize that loosening the timings could help. I'll try that. One of these days I'm going to get my watercooling parts put together and hook it up. Thanks again for the info.