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| Thread ID: 100920 | 2009-06-25 09:44:00 | overclocking guidance for a newbie please | powerover (12121) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 785856 | 2009-06-29 04:15:00 | But we already know 400GHz is OK for a reasonable OC mobo. Have fun and good luck. I had it at 390MHz at one point, it failed to wake up from sleep, it gave me the blue screen...:( maybe that is a memory issue? I should link the memory speed and the FSB together.. thanks for your advice :) |
powerover (12121) | ||
| 785857 | 2009-06-29 04:30:00 | I have just linked the FSB and memory speed together, quite a big jump for the memory: from 800MHz to 960MHz I think. testing using prime95 again at FSB = 380. I also manually setted the memory timing to 5 5 5 15, if I use the auto setting, it is something like 6 5 7 5 17, or something like that.. |
powerover (12121) | ||
| 785858 | 2009-06-29 04:53:00 | Like others have said the cooling on the northbridge should be sufficient. If you're running at around 400mhz fsb there should be a memory divider which lets you run the ram at just double the fsb which is back into territory where you know the ram will be stable. Once you get the cpu stable at a higher overclock you can try to increase the memory speed again as it is of secondary importance. An average stable overclock of your processor with after market air cooling is around 4ghz which is 444 fsb so by that speed your ram is being overclocked anyway at the lowest divider |
ScreaminGherkin (14811) | ||
| 785859 | 2009-06-29 21:01:00 | losed patient here, just bump the FSB right up to 400MHz, linked the memory speed with the FSB, then put it in "sync mode" which runs it at twice the FSB at 800MHz, seems stable so far, will do a prime95 stress test later on today. :) thanks ScreaminGherkin |
powerover (12121) | ||
| 785860 | 2009-06-30 03:10:00 | What sort of voltages are you using at that speed? | ScreaminGherkin (14811) | ||
| 785861 | 2009-06-30 03:13:00 | umm good question. I set everything on auto for the voltages, so i guess the mobo will decide what voltages is the best..will do a reboot and get back to you on that one... prime95 has been running for 5 hours now, no errors no warnings, temp is hovering just around 60 when doing the stress test...everything seems stable :) |
powerover (12121) | ||
| 785862 | 2009-06-30 03:19:00 | At those sort of temperatures I would say it's best to stop pushing for more unless you get better than standard cooling. With leaving the fsb where it is you can manually set the cpu voltage at whatever the auto is setting it at and then start droping it back which will get you lower running temps. I would guess that it will be stable with around 1.3v ideally less Also set the ram to it's specs of 2.1v and 4-4-4-12 timings |
ScreaminGherkin (14811) | ||
| 785863 | 2009-06-30 03:26:00 | thanks for your advice screamingherkin, but may i ask why setting the ram to 2.1v? i think the max they can take is 2.1v and i want a good reason before i push them to the limit voltages. by the way. 3dmark vantage CPU score is not as high as i am looking for, in fact, lower than when the FSB is at 370MHz, why?? needs more voltage? cheers |
powerover (12121) | ||
| 785864 | 2009-06-30 03:28:00 | It's just the specification. I've always read it as use this voltage to get these settings stable. You can try running at a lower voltage if you want though but i think you'll find that it needs the extra voltage to run at the tighter timings specified on the lable | ScreaminGherkin (14811) | ||
| 785865 | 2009-06-30 03:30:00 | ok..will redo the settings now..rebooting.. | powerover (12121) | ||
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