Estoroth Posted August 27, 2014 Share Posted August 27, 2014 Hello all. New here.. but I've built a fair few PC's in my day. But this time around I'm having TONS of issues with BSOD in getting Win8.1 installed. I've checked everything I can think of and now I'm back to memory.. and maybe this is my problem. I have an ASUS Z97 Pro Wifi board. i7 4970k. and a Zotac 560ti (just for an occassional game here or there). PC will mostly be used for audio and video work (serious hobby). The hard disk is ONLY a Seagate Barracuda 1tb for the system (SATA) and a SATA BD-R by LG. I have other hard drives but will ONLY install them when the system is fully up and running. I originally wanted 32gb's of RAM.. and decided I wanted 2400Mhz for this build.. so I bought a 2x8GB kit of Corsair Vengeance Pro 2400Mhz (the black and gold one). Part# cmy16gx3m2a2400c11a. I didn't buy two because I didn't have enough cash at that time.. a week later I picked up the 2nd set of the exact same ram. So I have TWO matching 16gb set of the 2400mhz ram. Today I'm reading that combining kits like that is not recommended.. even when they have the same "settings." These both have the same timings 11-13-13-31. The XMP didn't work out thru the BIOS so I had to manually enter it.. and seemed OK for a bit then started crashing again... SO..I am REALLY new/clueless on the whole timing issue.. (previous builds just worked or had a XMP that worked straight off)... Maybe if I only use ONE set it will be fine with the XMP profile... but to use two sets.. I'd have to tweak some settings and I'm completely lost there... Any suggestions are welcome. I turned off the XMP profile and am running at 1333Mhz right now for my memory. So far so good... I managed to install a bunch of software where this morning it was crashing all the time. Thanks Link to comment Share on other sites More sharing options...
wytnyt Posted August 27, 2014 Share Posted August 27, 2014 It is suggested using memory from the same set but i used 2 sets of 4x4 Platinum memory without any issues so it can be done ,there's just no way to know ahead of time if they will be ''happy'' together... Link to comment Share on other sites More sharing options...
emissary42 Posted August 27, 2014 Share Posted August 27, 2014 so I bought a 2x8GB kit of Corsair Vengeance Pro 2400Mhz (the black and gold one). Part# cmy16gx3m2a2400c11a. I didn't buy two because I didn't have enough cash at that time.. a week later I picked up the 2nd set of the exact same ram. So I have TWO matching 16gb set of the 2400mhz ram. Are both kits same version? Are both kits from a similar LOT? (You find that information on the sticker at the heatsink.) Link to comment Share on other sites More sharing options...
HOODedAssault Posted August 27, 2014 Share Posted August 27, 2014 Try switching modules from slot 2 and 4 to slot 1 and 3 and vice versa. Just a quick check that's worked for me before. Also cpu may need a bump in vtt voltage to handle all slots being filled at a high speed. Link to comment Share on other sites More sharing options...
Estoroth Posted August 28, 2014 Author Share Posted August 28, 2014 Thanks everyone.. I'll have to yank all the sticks to check the "lot" numbers but they are the same "part" and all have the same timings on the label. Meanwhile I removed DIMMS 1 and 3 to see if it stabilizes and is just a "setting" issue from the 4 sticks in the system at once. OUT OF CURIOSITY.. if I was to load all 4 sticks.. and leave the xmp off.. would the 5 Way Optimization on the ASUS find the timings and set it up correctly? This particular set of ram wasn't listed on their QVL. Didn't know if the "auto tune" process would figure it out... IF I was the increase the VTT voltage.. would that be ONLY adjustment I'd need to make to the "settings" with the 4 sticks? All their timings are the same.. but each set is only 2 sticks. I'm guessing a true "4 stick" set would have slightly different timings? Or you think just a VTT adjustment UP would do it? Thanks Try switching modules from slot 2 and 4 to slot 1 and 3 and vice versa. Just a quick check that's worked for me before. Also cpu may need a bump in vtt voltage to handle all slots being filled at a high speed. Link to comment Share on other sites More sharing options...
Estoroth Posted August 28, 2014 Author Share Posted August 28, 2014 For what it's worth.. I just checked their QVL list for a "32GB" set from Corsair.. and I found one.. listed as 10-12-12-31 at 1.65v.. I guess I could try that with all four sticks to start? Bad or good idea? =) Thanks Link to comment Share on other sites More sharing options...
HOODedAssault Posted August 28, 2014 Share Posted August 28, 2014 Ummmm if yours at 11 13 13 didn't work tighter timing aren't going to. What is your stock voltage ? If 1.5v you can try loading up xmp then adjusting voltage to 1.55v before rebooting. If that doesn't work I'd head straight to vtt. I believe it's called cpuvtt or something now. Link to comment Share on other sites More sharing options...
Estoroth Posted August 29, 2014 Author Share Posted August 29, 2014 That's right.. I was going in the wrong direction. LOL!! I actually first tried bumping up the VTTDRAM (I forgot the name in the bios exactly).. it was "auto" set to 0.825 with the XMP Profile (at 2400Mhz). The manual stated it moves in increments of 0.0125V so I changed it to .8375. I didn't see how I could "nudge it" one notch up.. I had to manually enter the #. But.. it barely got the windows and BSOD. The DRAM voltage is set to 1.65v. The sticker says that too.. and the XMP profile defaults to that as well. SO.. I reset it all.. and then went back and loaded the XMP profile.. DRAM speed back to 2400.. and then manually bumped up the timings one notch each and the final one by 3. New settings to 12-14-14-34 2N. So far so good... It's not optimal I'm sure.. But I'll keep researching and tweaking. Now I did notice a DRAM CONT REF Voltage. Didn't mess with it.. but should I.. anything that might help me there? Thanks Ummmm if yours at 11 13 13 didn't work tighter timing aren't going to. What is your stock voltage ? If 1.5v you can try loading up xmp then adjusting voltage to 1.55v before rebooting. If that doesn't work I'd head straight to vtt. I believe it's called cpuvtt or something now. Link to comment Share on other sites More sharing options...
Estoroth Posted August 30, 2014 Author Share Posted August 30, 2014 Update: I went back and returned the settings for the 4 sticks to the 11-13-13-31 2N.. and then adjusted the DRAM speed to 2200Mhz.. so far so good. I tried raising the VTTDDR to .8375 from .825 but it crashed bunches. Should I have raised the voltage at the ram itself instead of the VTTDDR? It's already at 1.65v. Thanks Link to comment Share on other sites More sharing options...
HOODedAssault Posted September 1, 2014 Share Posted September 1, 2014 You don't want to touch vttddr voltage. It's supposed to be half the ram voltage. Which is does just fine on auto. Try bump analog and digital i/O voltage by .100v pay special attention to the "." I put there lol. Link to comment Share on other sites More sharing options...
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