Workdawg Posted October 2, 2010 Share Posted October 2, 2010 I recently built a new system and am having some issues with the computer crashing giving "Memory Management" BSODs. Originally the mobo wouldn't consistently detect all my ram, but after flashing to the newest firmware, it has been able to detect all the RAM, but it was under clocked to 1033mhz. The timings were also off. I enabled XMP, and it automatically set everything up correctly. 1600mhz, 7-8-7-20 timings. Awesome. Over the past few days I've been having serious issues with crashing though, BSODs sometimes within 5 minutes of booting up, other times it'll run all night. It doesn't really seem to depend on what I'm doing. Every time though, it's a Memory Management message. I decided to turn XMP off and let the RAM run slower, and so far it seems like it's been pretty stable. If you can provide any help in getting my RAM to run up to it's potential, that would be amazing. Thanks! Link to comment Share on other sites More sharing options...
trackrat Posted October 2, 2010 Share Posted October 2, 2010 The i7-930 is only guaranteed to run memory at 1066 MHz. Your PC may or may not run stable at higher frequencies even thought the Corsair memory has been tested and confirmed to run stable at 1600 MHz. Running your memory above 1066 MHz. on this CPU constitutes overclocking and nothing is guaranteed when OC'ing. The only way you will know is to manually set the BIOS options to try and find the settings that will work at a higher frequency. Otherwise just leave it at 1066 MHz. and be done with it. Depending on what applications you run you may see little to no gain with higher memory frequency? http://ark.intel.com/Product.aspx?id=41447 Link to comment Share on other sites More sharing options...
Workdawg Posted October 2, 2010 Author Share Posted October 2, 2010 Thanks for the quick reply, but I'm aware of the i7 limitation. There are plenty of people running RAM @ 1600mhz w/ i7's though... including many examples on these forums. I know I'm running a slight overclock to get the RAM to run at 1600, but since people are getting 4+ ghz out of these cores, I don't see how just turning it up slightly to run faster RAM would really cause many issues. Link to comment Share on other sites More sharing options...
trackrat Posted October 2, 2010 Share Posted October 2, 2010 Every CPU/Mobo/RAM/PSU is different. When it comes to overclocking nothing is guaranteed. You may want to look for a OC link and give some of the BIOS settings a try. Just because other people's CPU can does not mean that your's can. Hopefully with the right BIOS settings it will, but it's only guaranteed to run 1066 MHz. memory frequency. Try here: http://www.overclockers.com/forums/ Link to comment Share on other sites More sharing options...
Workdawg Posted October 30, 2010 Author Share Posted October 30, 2010 It seems as though I have to bring this back from the dead, unfortunately. Over the past month I've been plagued with BSODs and other application crashes, even with the RAM set to the mobo defaulted options... 1066mhz and 8-8-8-20 timings. (The RAM is claimed to run 1600mhz @ 7-8-7-20) I've reinstalled windows numerous times and still am having nothing but trouble. Originally I thought it may be a bad SSD, but I swapped an old HDD in and it's still doing the same things. It runs pretty stable as long as I don't do too many thing at once. Playing Starcraft II and communicating via Ventrilo very often causes SC2 to crash, and then a BSOD. Even playing SC2 by itself will cause issues occasionally. A while back I ran memtest86+ on all three sticks and got 4 clean passes. I'm currently running it on one stick at a time and will report back when that's finished. a Any help you can provide would be awesome. Specific BIOS settings to try or something like that. I guess if the RAM comes back clean I'll have to RMA the mobo, but I'd like to rule out the RAM first. Link to comment Share on other sites More sharing options...
trackrat Posted October 30, 2010 Share Posted October 30, 2010 If the RAM passes Memtest 86+ OK then the problem is more likely your CPU/mobo or BIOS settings. Running the RAM @ 1600 MHz. = 50% overclock. Just because the memory has been tested and confirmed to run stable at 1600 MHz. does not mean that your CPU/mobo will run stable @ 1600 MHz. RAM frequency. Increasing the QPI voltage to 1.3 V may help but there are no guarantees in overclocking? http://ark.intel.com/Product.aspx?id=41447 The tech info. at the link below regarding overclocking may be useful: http://www.techreaction.net/2010/09/07/3-step-overclocking-guide-bloomfield-and-gulftown/ Link to comment Share on other sites More sharing options...
Workdawg Posted October 30, 2010 Author Share Posted October 30, 2010 At this point I'm just concerned with getting to be stable at all, even if that means running the RAM at 1066. I'm through 7 successful passes on the first stick. I just stuck the 2nd stick in and will let that one run memtest86+ for a while by itself (running it w/out XMP, so the default settings, 1066 and 8-8-8-20 timings). I checked the BIOS to see what turning XMP on does specifically, and here are the results: XMP OFF: Frequency: 1066 Performance Enhance: Turbo DRAM Timing Selectable (SPD): Quick DDR Voltage: 1.5v QPI Voltage: 1.175v Channel Interleaving: 6 Rank Interleaving:4 Channel A Timings: 8-8-8-20 tRC: 27 tRRD: 4 tWTR: 4 tWR: 8 tWTP :19 tWL: 7 tRFC: 60 tRTP: 4 tFAW: 20 Command Rate (CMD): 1 B2B CAS Delay: - Round Trip Latency: 51 XMP Profile 1: Frequency: 1600 Performance Enhance: Turbo DRAM Timing Selectable (SPD): Quick DDR Voltage: 1.65v QPI Voltage: 1.2v Channel Interleaving: 6 Rank Interleaving:4 Channel A Timings: 7-8-7-20 tRC: 41 tRRD: 6 tWTR: 6 tWR: 12 tWTP: 23 tWL :7 tRFC: 88 tRTP: 6 tFAW: 30 Command Rate (CMD): 2 B2B CAS Delay: - Round Trip Latency: 51 ------------ I guess, assuming all the RAM checks out clean again, I'll try tweaking some settings further, but I'm not sure the best place to begin. Link to comment Share on other sites More sharing options...
Workdawg Posted October 30, 2010 Author Share Posted October 30, 2010 Well, looks like one of my stick of RAM my be bad. Running memtest86+ I've got a bunch of errors on tests 4, 5, and 7; which according to their website is the random number sequence. It's listing 3137 errors on the first pass. I guess I'll let that one run a bit longer and check the 3rd stick. Does it make sense that when they are all run together, in triple channel mode it runs w/out errors, but individually one of them errors out? Link to comment Share on other sites More sharing options...
Workdawg Posted October 31, 2010 Author Share Posted October 31, 2010 I tested the last stick and it made a few passes w/out error. I stuck all three back in, with the bad stick in the first slot and it also ran a handful of passes on memtest successfully. Weird. I ended up pulling the bad stick and have been running the two good sticks in dual channel mode since yesterday afternoon. I've been gone most of the time, but I did manage to reinstall and play SC2 without issue. It seems as though all of my issues were from one stick of bad RAM :/ Link to comment Share on other sites More sharing options...
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