I have 16gb of installed ram (corsair dominator platinum, ddr3, 2x8gb sticks). Windows says 16gb installed but only 7.95 are usable, and I installed cpuz and it said it is still in single channel mode. My pc will only boot up with both sticks of ram installed. Anyone know why any of this could be happening? Other info: motherboard: MSI 970 Gaming CPU: fx-4300, GPU, MSI GTX960 4gb
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I have 16gb of ram installed but windows only says 7.95gb usable. Won't go into dual channel mode.
- Thread starter xlipskey
- Start date
Solution
VJ_Gamer
Commendable
- Aug 8, 2017
- 851
- 0
- 1,660
Check the below solved threads with the same issue.
http://www.tomshardware.com/answers/id-2276252/installed-usable.html
and
http://www.tomshardware.com/answers/id-2727570/16gb-ram-usable.html
Good Luck.
Peace.
http://www.tomshardware.com/answers/id-2276252/installed-usable.html
and
http://www.tomshardware.com/answers/id-2727570/16gb-ram-usable.html
Good Luck.
Peace.offroadguy56
Honorable
- Apr 3, 2013
- 450
- 1
- 10,960
VJ Gamer has posted good sources so I'll just add on to what's already there.
Make sure your BIOS/UEFI is seeing both sticks of ram. Try booting with 1 stick in any of the slots you have available. If what you mentioned is true about your computer only posting with both then swap the places of each stick of ram.
I see 3 possible problems, bad stick, bad slot, or the 2 sticks don't want to work together.
Make sure your BIOS/UEFI is seeing both sticks of ram. Try booting with 1 stick in any of the slots you have available. If what you mentioned is true about your computer only posting with both then swap the places of each stick of ram.
I see 3 possible problems, bad stick, bad slot, or the 2 sticks don't want to work together.
I tried the steps in both of those links and after trying to move the sticks around my PC wouldn't boot up and has to clear the CMOS, which isn't a big deal. I wonder if there was a bad stick if windows would still recognize it, since it recognizes that there is 16gb installed. I doubt there is a bad slot since I can have ram in any of the two slots and is able to be recognized. Everything seems to be in place, it just isn't going into dual channel mode.
You mentioned something about the sticks not working together; they are the same stick so I assume they would work to together it maybe for some reason they aren't. Maybe they aren't getting no getting enough volts?
I'll maybe have to see if a friend has some ddr3 laying around for me to try out.
You mentioned something about the sticks not working together; they are the same stick so I assume they would work to together it maybe for some reason they aren't. Maybe they aren't getting no getting enough volts?
I'll maybe have to see if a friend has some ddr3 laying around for me to try out.
offroadguy56
Honorable
- Apr 3, 2013
- 450
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Lets continue to troubleshoot together. You've eliminated a faulty slot.
Have you tried to manually enable dual channel mode in the BIOS/UEFI? Have you tried enabling XMP profile for the ram?
Ensure BIOS/UEFI recognizes each of the ram sticks to be running at their proper clock speeds, timings, and voltages.
If you bought each ram stick separately there's possibility they won't run together. If it came in a kit it might not have been properly tested for quality before leaving the factory. In addition some ram models won't run with certain motherboard chipsets and CPUs. Take the launch of the AM4 platform for example.
Have you tried to manually enable dual channel mode in the BIOS/UEFI? Have you tried enabling XMP profile for the ram?
Ensure BIOS/UEFI recognizes each of the ram sticks to be running at their proper clock speeds, timings, and voltages.
If you bought each ram stick separately there's possibility they won't run together. If it came in a kit it might not have been properly tested for quality before leaving the factory. In addition some ram models won't run with certain motherboard chipsets and CPUs. Take the launch of the AM4 platform for example.
corsair dominator platinum, ddr3, 2x8gb sticks
Since you don't list the memory part number, you'll have people not knowing what memory you are referring to and wondering if you bought each ram stick separately. Not knowing what memory clock the memory uses is another drawback.
AMD FX CPUs can run 1866MHz memory with one DIMM per channel with no overclock.
Since you don't list the memory part number, you'll have people not knowing what memory you are referring to and wondering if you bought each ram stick separately. Not knowing what memory clock the memory uses is another drawback.
AMD FX CPUs can run 1866MHz memory with one DIMM per channel with no overclock.
There is no setting in the BIOS the manually select dual channel mode, nor is there a memory limit option. I bought the ram in a kit. It's overclockable up to 2400mhz but I haven't done that. I'll check on the clock speeds and timings and see if there is a xmp mode. Thanks for helping
It did end up being a bad stick of RAM. I got another motherboard and CPU from a friend and tested them out. This time, the motherboard would only boot with one stick and not the other. I find it weird that the leds on the ram still worked and that it even showed up that it was there. Thanks for all the help!
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