Quote Originally Posted by Don_Dan View Post
I see you're lowering tRTC, tRP and tRC with Memset, that's one of the things I would have given you as an advice. Are you booting at 400 MHz FSB? If yes, then try to boot at lower FSB speeds and clockgen to 400MHz. That's because the strap change at 400MHz will not take effect if you pass this mark in Windows and it will keep on running on the faster 333MHz strap.
On 680i it's all about picking the correct divider, the best are 2:3 and 9:11 and maybe 9:10.

Look at my screen, that was the best result I've ever made on 680i, because my CPU doesn't like more than 400MHz FSB...

Only 600MHz on the RAM, but almost 11k in Everest's read test, all my changes in Memset and the used voltages are visible, maybe my tips will help you a bit.
I can boot into Windows without issue at up to 500Mhz FSB. Anything beyond that takes a bit of work. I almost never use 8x multiplier for that reason. I checked ClockGen out a while back but it didn't show support support for 680i so I deleted it. I saw someone mention a beta version in a previous post in this thread but Google turned up nothing. Do you have the beta version of ClockGen you could upload somewhere?

I noticed with all these memory timings that most are better left alone unless you have a great understanding of them. There are a lot of variables. The advice I've seen posted on the web ranges from the ridiculous to hearsay and guesstimates. I think what it comes down to is researching, benching, trial and error.

I do have a few questions though. When using MemSet are there some values that if you run too low you actually risk physically damaging the RAM or is it just like CPU\GPU overclocking where you'll just BSOD and have to reboot? Mostly I'm talking about tRFC, I noticed that lowering it gets some of the best bandwidth increases. What about running at 1T command rate? I know you have to downclock considerably. Is there any value in adjusting RMS? I was always interested in it because the values are so different from the rest being measured in µs instead of cycles. Thanks.