Hey guys,
I am running following system:
MB: GIGABYTE 990FXA-UD3
CPU: AMD Vishera FX-8300
GPU: SAPPHIRE NITRO+ Radeon RX 470 4GB
RAM: Crucial Ballistix Tactical 16GB (2x8GB) DDR3 1866
PSU: Seasonic S12II-620 620W
Case: NZXT S340
SSD: Kingston HyperX Savage - 240GB
HDD: WD Blue EX - 1TB
And I was running 4.4Ghz stable overclock but recently I noticed that only half of my ram is usable So I started troubleshooting. I tried only one stick everything worked fine then I tried second one and nothing. So I am like alright the stick is broken. But than I tried b1 slot instead of a1 slot and it worked but with boot failure. So I reset my bios with works fine with stock settings so all I tried was putting xmp profile to get 1866Mhz and it won't lunch. But if I put both sticks there and run memory at 1866Mhz with rest of bios on default both sticks works fine at that frequency. So at this point I have working memory so I applied my 4.2 overclock which I knew is safe and it worked fine both memory there so I tried my 4.4Ghz overlock which is basically same except multiplier and it doesnt work now only half of memory is usable. So I reset bios once more apply 4.2 and it doesn't work this time. But when I reset bios 16gigs are usable. I tried lot of tweaking to get this work from windows to bios playing with voltages and stuff but I can't get it to work. I am quite frustrated at this point. Any reasonable ideas?
I am running following system:
MB: GIGABYTE 990FXA-UD3
CPU: AMD Vishera FX-8300
GPU: SAPPHIRE NITRO+ Radeon RX 470 4GB
RAM: Crucial Ballistix Tactical 16GB (2x8GB) DDR3 1866
PSU: Seasonic S12II-620 620W
Case: NZXT S340
SSD: Kingston HyperX Savage - 240GB
HDD: WD Blue EX - 1TB
And I was running 4.4Ghz stable overclock but recently I noticed that only half of my ram is usable So I started troubleshooting. I tried only one stick everything worked fine then I tried second one and nothing. So I am like alright the stick is broken. But than I tried b1 slot instead of a1 slot and it worked but with boot failure. So I reset my bios with works fine with stock settings so all I tried was putting xmp profile to get 1866Mhz and it won't lunch. But if I put both sticks there and run memory at 1866Mhz with rest of bios on default both sticks works fine at that frequency. So at this point I have working memory so I applied my 4.2 overclock which I knew is safe and it worked fine both memory there so I tried my 4.4Ghz overlock which is basically same except multiplier and it doesnt work now only half of memory is usable. So I reset bios once more apply 4.2 and it doesn't work this time. But when I reset bios 16gigs are usable. I tried lot of tweaking to get this work from windows to bios playing with voltages and stuff but I can't get it to work. I am quite frustrated at this point. Any reasonable ideas?
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