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krich

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Everything posted by krich

  1. So far, I've managed to get all those Tertiary timings down to 6 (from 8 before) with the exception of tRRSR (7) and tWRDR (8) and this is so far 12 hours plus Prime Blend stable with 6500MB RAM (95% of available). I've tried relaxing to 5 but I then find Prime 95 Blend is stable, but then after a reboot and trying again it fails within a minute and so on. So far then, I've got 10-12-12-28 at DDR3-2400 with 1.7V (1.692V actual according to ET6) and that is 24 hours P95 Blend Test stable with Tertiary timings at 8, and so far 12 hours P95 Blend Test stable with Tertiary timings at 6, with the exception of the 2 I mentioned. Still going to continue tweaking and playing Edit: Even though having the Tertiary timings at 6, as above, has been P95 Blend stable for 12 hours, after a restart, it fails within a minute. A restart later and it was fine again. Rinse and repeat, sometimes it lasts hours and hours, and sometimes it fails within a minute. More tweaking required Edit 2: It may have something to do with F5o not applying settings properly. I've loaded my profile for 24hrs P95 Blends stable with Tertiary timings at 8, saved and rebooted, gone back into the UEFI and those settings are all correct. When I check in Windows though with Mem TweakIT, the settings are all different to what I have showing in the UEFI. When this happens, the only thing that seems to work is reflashing F5o and then all works again!
  2. Thanks, will try that and report back. I think the main issue seems to be that settings which are stable (Prime Blend 24 hours, Memtest e.t.c) are having difficulty passing POST and it requires multiple boots to get the system up and running, despite playing with skews and what not. I tried the same settings in an ASUS board and with the same timings, subtimings and VDIMM, there were no POST issues and everything was perfect. I'm loving my Z77X-UP7 though and these new UEFI versions are definately getting better and better.
  3. F5o has been good with my Samsung Green 8GB kit. So far 2400 with 10-12-12-28 and 1.68v is 1000% coverage stable in HCI Memtest (DOS) version. I haven't tried lowering VDIMM yet and it is set as auto. I have to have the slews at 4 to get past code 51, but though my above settings are stable, it looks like some more work is required to get the board to consistently POST without either doing the 15-03-15 loop or doing a 51. It sometimes needs a couple of loops to get the POST done and then it's rock solid. I think there might be an issue with the tertiary timings. Some like tRRDR should only go up to 8 maximum I believe, but the UEFI lets me set them up to 16 and I don't think it's actually working as in Mem TweakIT, anything higher than 8 just either sticks at 8, or in the case of tRRDR, shows as 1 which causes stability issues. I couldn't work out why my settings were 1000% coverage stable in HCI Memtest, LinX stable with maximum memory, Memtest stable overnight but kept falling over within seconds in Prime blend. I found it was because I had set tRRDR at 9, and Mem TweakIT was showing that as 1. Lowered it to 8 in the UEFI, and not only does Mem TweakIT show that, but Prime blend is also rock solid now. Only thing is that even though tRRDR is rock solid at 8, it causes more issues with POSTing, but eventually once it POSTs, I can reboot and start up without any POST issues, unless I go in and need to change anything, and then it is a matter of rebooting till it takes the settings.
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