skoville Posted February 18, 2015 Posted February 18, 2015 (edited) I've checked a lot of posts but no joy. Win 7 64 Ultimate says 16 G (7.90) usable) Bios says 8G but shows both 8G moduals. CPU-Z states 16G but single channel. Have switched moduals to slot 2 & 4, same thing. Sabertooth 990FX R2 HyperX Fury Black 2x8GB DDR3 1866 Any help? Edited February 18, 2015 by skoville Share this post Link to post Share on other sites More sharing options...
IVIYTH0S Posted February 18, 2015 Posted February 18, 2015 Your bios says 8GB total?? Share this post Link to post Share on other sites More sharing options...
gebraset Posted February 19, 2015 Posted February 19, 2015 Memtest, to ensure that both modules are good? Past that, maybe take a look at BIOS settings to see if something odd has to be enabled. No idea why that would be the issue, but it's already odd that Windows and CPU-Z show 16GB and there's an issue. I'm voting bad RAM at this point, based on Windows giving you a 7.9GB usable and CPU-Z only recognizing it as single channel. But, I of course could be wrong, lol. Share this post Link to post Share on other sites More sharing options...
ir_cow Posted February 19, 2015 Posted February 19, 2015 I would check the bios first and see if Both show up before doing anything else. That at lest is a starting point. Share this post Link to post Share on other sites More sharing options...
Waco Posted February 19, 2015 Posted February 19, 2015 I would check the bios first and see if Both show up before doing anything else. That at lest is a starting point. He stated in the first post the BIOS shows both 8 GB modules, but also only 8 GB total. A BIOS update would be my first shot...or if another set of RAM is handy, try that first. Share this post Link to post Share on other sites More sharing options...
SpikeSoprano Posted February 19, 2015 Posted February 19, 2015 Run memtest on each stick separately, if both pass I'd check for bios update or a bad memory controller or memory slot. Share this post Link to post Share on other sites More sharing options...
dr_bowtie Posted February 19, 2015 Posted February 19, 2015 Things I would do to test are like Waco stated but I'd add... 1) try a FULL CMOS clear and reset the memory perimeters. make sure speeds and voltages are set to rated. It should state Dual Channel on the POST screen. 2) use 1 stick and flash the BIOS to the latest. 3) tray another kit. I have had issues with AMD boards and ram that wasnt compatible do that. I could get it running by enabling XMP profile (not all AMD boards have it) but a lot of times it was Single Channel only. Share this post Link to post Share on other sites More sharing options...
VaporX Posted February 19, 2015 Posted February 19, 2015 (edited) Sure this is not an NVidia based BIOS hack? ROFLMAO Sorry I know but it was just to easy to pass up Edited February 19, 2015 by VaporX Share this post Link to post Share on other sites More sharing options...
NCC10281982B Posted February 19, 2015 Posted February 19, 2015 I had a similar issue. ReSeating the dimms, loading bios defaults, & clearing the cmos. One of the 3 did the trick. Share this post Link to post Share on other sites More sharing options...
Waco Posted February 19, 2015 Posted February 19, 2015 Sure this is not an NVidia based BIOS hack? ROFLMAO Sorry I know but it was just to easy to pass up Har har. Share this post Link to post Share on other sites More sharing options...
skoville Posted February 19, 2015 Posted February 19, 2015 Bent pins. If only I had more fingers than thumbs. 2nd one I screwed up. Think AMD does repair? Share this post Link to post Share on other sites More sharing options...
IVIYTH0S Posted February 20, 2015 Posted February 20, 2015 Bent pins. If only I had more fingers than thumbs. 2nd one I screwed up. Think AMD does repair? You mean in your memory slot? Can you use another? Share this post Link to post Share on other sites More sharing options...
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