Windows 10 64bit 8GB RAM installed 3.98GB usable?

Johnatan56 said:
1. Reseat the RAM
2. Check BIOS settings
3. msconfig > Boot, select the OS and hit advanced, check what your maximum memory is set to, should be unticked.

What does your display in dxdiag say?
Click to expand...

None of those 3 things helped.

P01106-173941.jpg

P01106-174014.jpg

P01106-170529.jpg

Bios sees two sticks but single channel.
 
quovadis said:
Try using slots A2 and B1...
Click to expand...

The asrock 970 extreme3 r2.0 manual specifically stated to use a1/b1 and a2/b2

ASRock > 970 Extreme3 R2.0

Supports ASRock DuraCap, Digi Power; Supports AM3+ Processor, 8-Core CPU; Supports Dual Channel DDR3 2100(OC); 2 x PCIe 2.0 x16 Slots, Support AMD Quad CrossFireX™ and CrossFireX™; 4 x USB 3.1 Gen1 (2 Front, 2 Rear), 5 x SATA3, 1 x eSATA3; Supports XFast 555, X-Boost, Fast Boot, Restart to UEFI...
www.asrock.com www.asrock.com
 
I've moved the dimms from slots a2/b2 to a1/b1 and reset the bios but still no joy...

Busy downloading puppy linux 64bit just check if it will see all 8gb
 
Last edited:
ponder said:
The asrock 970 extreme3 r2.0 manual specifically stated to use a1/b1 and a2/b2

ASRock > 970 Extreme3 R2.0

Supports ASRock DuraCap, Digi Power; Supports AM3+ Processor, 8-Core CPU; Supports Dual Channel DDR3 2100(OC); 2 x PCIe 2.0 x16 Slots, Support AMD Quad CrossFireX™ and CrossFireX™; 4 x USB 3.1 Gen1 (2 Front, 2 Rear), 5 x SATA3, 1 x eSATA3; Supports XFast 555, X-Boost, Fast Boot, Restart to UEFI...
www.asrock.com www.asrock.com
Click to expand...
Try it
 
Immy said:
While your at it, check how much Windows reports usable if you take out one DIMM(4GB total).
Click to expand...
Testing one dimm at a time per slot would be good too. To verify all slots are working.
 
I suspect bios issues.

#1 - Try move sticks to A1 /A2 or A1 / B1 (see if bios shows dual channel or not).
#2 - Check if any bios update available.
#3 - Check in Linux to see if it see's 8G usable.
- If good, then its windows, try a diff build. Maybe you have PAE enabled or something.
 
AMD Athlon!?!?
Wow Im not even sure PC's with 8GB of ram were a thing in those days.
Unless of course the newer CPU's are also labelled Athlon?
 
lsheed_cn said:
I suspect bios issues.

#1 - Try move sticks to A1 /A2 or A1 / B1 (see if bios shows dual channel or not).
#2 - Check if any bios update available.
#3 - Check in Linux to see if it see's 8G usable.
- If good, then its windows, try a diff build. Maybe you have PAE enabled or something.
Click to expand...

I tried one dimm at a time in each slot, each dimm works on its own in every slot.

Linux 64bit also only sees 4gb with both films plugged in.

Pc is on a ups so I'll look for a newer bios next.

Anybody know if the memory controller resides in the cpu or if it's part of the MB chooser? Thinking of reseating the cpu as well but forgot to bring thermal paste with me.
 
Flashed the bios to latest available version and still no change. Bios still says single channel and only 3.98gb available in windows...
 
In task manager under performance and memory what does it say under hardware reserved?
 
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