trin to max out rig and gettin stuck. everything fine till i try 231 on the htt. loosened timings a lil, upped the vcore, dropped to x9 and x10. Trin to get stable with a 4x multiplyer. Have a HTT max of 1000(fsb). Any ideas? ASUS A8N-E/ 3700+sandy/ xms (2x512) loosened a lil to 2.5-3-3-7. stats now 4x 230-920 (fsb) cpu 2528. Should I loosen up mem some more?
Lateknight
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- May 10, 2006
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What exact memory are you running? 400?
In my own oc experience its the memory that always gives first.
Sounds like you might have to try setting the memory speed manually from auto, and drop it down from ddr400 to ddr333 (200 to 166) in dram config in bios.
With htt @ 240 your memory would run at ddr398 (199), very close to its stated speed of 400.
You've done well to get to 231 if you have your memory set at ddr400 on pc3200. I could not get past 218 without reducing the mem speed.
Highest I saw stable at 4x, was 248htt, mem speed 333 (real mem speed 413), cas2.5 (corsair xms3200c2pt) multiplier left at 11, volts 1.45,cpu 2730 (cpu-z), zalman cnps9500 cooler (you'll need it)
But everybody gets different results.
In my own oc experience its the memory that always gives first.
Sounds like you might have to try setting the memory speed manually from auto, and drop it down from ddr400 to ddr333 (200 to 166) in dram config in bios.
With htt @ 240 your memory would run at ddr398 (199), very close to its stated speed of 400.
You've done well to get to 231 if you have your memory set at ddr400 on pc3200. I could not get past 218 without reducing the mem speed.
Highest I saw stable at 4x, was 248htt, mem speed 333 (real mem speed 413), cas2.5 (corsair xms3200c2pt) multiplier left at 11, volts 1.45,cpu 2730 (cpu-z), zalman cnps9500 cooler (you'll need it)
But everybody gets different results.
Lateknight
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- May 10, 2006
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I think this is what your looking for
Excerpt : 1t/2t memory timing 1T upto 240MHz and 2T anything above that, there's known to be some problems on overclocking with some Asus boards using 1T command rate for high memory frequency.
See post: http://forums.mushkin.com/phpbb2/viewtopic.php?p=14518&sid=3ceed1da1b079b4f433ba7485a90a95e
Excerpt : 1t/2t memory timing 1T upto 240MHz and 2T anything above that, there's known to be some problems on overclocking with some Asus boards using 1T command rate for high memory frequency.
See post: http://forums.mushkin.com/phpbb2/viewtopic.php?p=14518&sid=3ceed1da1b079b4f433ba7485a90a95e
well, found my prob through trial and error. Was and still am trin to find my max htt. Had lowest divider set on mem, ddr, 200 (100) and wouldnt work went up one to 266 (133) and loosened my timings from stock 2-3-3-6 to 3-4-4-8. ( will tighten back later) and locked the pci clock sync to 33.33 was on auto. at 250 now with a x3 multi. ht (fsb) is at 998. also found an interisting article , below link.
http://www.custompc.co.uk/custompc/features/84279/master-the-dark-art-of-overclocking/page4.html
http://www.custompc.co.uk/custompc/features/84279/master-the-dark-art-of-overclocking/page4.html
paul_baker
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- Feb 20, 2006
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i have the same board and cpu and can get the 108% function to work in the ai booster but the 110% locks my computer.
For some reason, Asus felt the need to provide the chipset on the A8N-E with just enough power to run at stock speed. Sadly, the only surefire way to break the 250MHz mark is to volt mod the chipset (something for the A8N-SLI will work).
My A8N-E also hated running a SATA HDD. If you have one, try switching which jack the cable plugs into. If that doesn't help, you'll need a seperate SATA card.
My A8N-E also hated running a SATA HDD. If you have one, try switching which jack the cable plugs into. If that doesn't help, you'll need a seperate SATA card.
It's only a voltage problem. I've personally hit 260 at 4x and never tried to go higher than 280 after applying a voltmod to the chipset and setting it to 1.8V (default is 1.4'ish). It seemed to be able to go farther, but I was basically looking to ensure stabillity at up to 250MHz. Sadly, my watercooling system sprung and killed the system. Now, I own a dell 🙁
I'd post a link to the mod, but it seems to be down at the moment.
I'd post a link to the mod, but it seems to be down at the moment.
damm, might have to look into that for the sata, i have had a safe to remove hardware icon in taskbar ever since built rig, and the hardware safe to remove is my HDD.lol. Have system stable at 2.7ghz now, actually 2699, at 1.49 v, cant seem to get past 2700.Htt at 246 4x multi.HT(fsb) at 980. MEM usin 166 divider at 192 , 2-3-3-6 timings,2.8v. tried loosin to 2.5 cas to incrrease ht with no luck. have xms cor ddr400 (2x512) Have a zalman cpns7000b hs/fan on proc. I also found alot of probs trin to use ai booster. Best to do it right in bios, nothin more fun than re-boot after re-boot. Trin to get rig to break 10,000 on 3dmark05, at 9829 at last run. bout to do another .
http://service.futuremark.com/compare?3dm05=2019181[/quote]
http://service.futuremark.com/compare?3dm05=2019181[/quote]
Your not saying which XMS ram you are working with.
Other than that Asus boards are poor for overclocking as the bios lacks so many adjustments amoung other issues.
Better to have bought an MSI or best a DFI ftw.
The A8n-E is a pretty solid overclocker....other than its obviously flaw that (i think only at 1 to 1 mem divider) it CAN NEVER go above 230 with 1T..
The board itself is obviously not as good as DFI, but its pretty good, offers a great range of voltages, locking options, dividers, and everything else. The one I had had a mobo limit of 325 HTT...not bad. Not everyone is comfortable with all of the options that DFI's allow.
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