Only 3.95Gb of 8Gb usable ram on Ryzen, windows 10/ 64 bit, is that normal?

[chexor]

Yesterday i got my new rig up and runing: 

MSI b350 PC MATE

r5 1500x

2x4gb hyperX 2400mhz ram (at MSI website listed as supported for my mobo)

 

When 1st time i started PC i have seen some weird thing, it shows only 4 gb of ram at top of screen (where you can find specs like clock speed etc), but when i went to memory tab, there's listed 2 dimms populated from 4, and both listed coractly as 2x4 gb dimms..

I couldnt install windows so i updated bios (and still same thing with 4 gb shown in bios) and menaged to install windows 10/ 64 bit.

In windows it shows me installed memory 8gb (3.95gb usable).

Does anyone know to solve this, is this normal on ryzen?

[AvocadosGuac]

YOu're sure you installed 64 bit windows?

[chexor]

1 minute ago, Jrock said:

YOu're sure you installed 64 bit windows?

64 bit OS, x64 processor

[NowThatsDamp]

Hm... if your bios says 4gb, it's definitely not a windows problem. I'd play around a bit more, try different ram in the same mobo, same ram in a different mobo, see if that unearths anything.

[pyrojoe34]

First thing is to certain you have the 64bit OS version installed. Next thing is to put one stick in at a time and see if they both work when independent. Also run memtest86 and/or extended windows memory diagnostic.

[DocSwag]

Try the second solution here.

https://superuser.com/questions/965524/computer-doesnt-use-more-than-4-of-my-8gb-of-ram-64-bit-computer

[MaalaisPoika]

have you tried this?: 

 

1)Run 
2)type "msconfig"
3)Go under the "boot" tab
4)click "advanced options" button
5)UNCHECK! "Maximum memory"
6)Reboot 

[chexor]

Just now, DocSwag said:

Try the second solution here.

https://superuser.com/questions/965524/computer-doesnt-use-more-than-4-of-my-8gb-of-ram-64-bit-computer

Not helping, i did and nothing happened,i dont think it is OS related ...

 

1 minute ago, MaalaisPoika said:

have you tried this?: 

 

1)Run 
2)type "msconfig"
3)Go under the "boot" tab
4)click "advanced options" button
5)UNCHECK! "Maximum memory"
6)Reboot 

4 minutes ago, pyrojoe34 said:

First thing is to certain you have the 64bit OS version installed. Next thing is to put one stick in at a time and see if they both work when independent. Also run memtest86 and/or extended windows memory diagnostic.

Yes it is 64 bit for sure.. Again, bios is showing me 4gb of ram for some reason..

4 minutes ago, NowThatsDamp said:

Hm... if your bios says 4gb, it's definitely not a windows problem. I'd play around a bit more, try different ram in the same mobo, same ram in a different mobo, see if that unearths anything.

Dude this is new platform i have no access at ddr4 much

[AdmiralMeowmix]

I have Ryzen and this is what is known as a "cold boot" issue. To fix it you typically have to boot up into the bios and just exit the bios to boot and it should fix the issue. Clearing your CMOS might also help.

[pyrojoe34]

4 minutes ago, chexor said:

Yes it is 64 bit for sure.. Again, bios is showing me 4gb of ram for some reason..

Ok, then try the other two recommendations I made and report back the results. It could be a faulty RAM stick or it could be a bad DIMM slot on the board. Test the sticks first then test the DIMM slots.

 

Also reset the CMOS if if haven't yet.

[chexor]

31 minutes ago, AdmiralMeowmix said:

I have Ryzen and this is what is known as a "cold boot" issue. To fix it you typically have to boot up into the bios and just exit the bios to boot and it should fix the issue. Clearing your CMOS might also help.

Did clear cmos first because i had issue to but with old gpu, then i updated to latest bios, nothing solved this..

[chexor]

1 hour ago, Jrock said:

YOu're sure you installed 64 bit windows?

 

1 hour ago, NowThatsDamp said:

Hm... if your bios says 4gb, it's definitely not a windows problem. I'd play around a bit more, try different ram in the same mobo, same ram in a different mobo, see if that unearths anything.

 

1 hour ago, pyrojoe34 said:

First thing is to certain you have the 64bit OS version installed. Next thing is to put one stick in at a time and see if they both work when independent. Also run memtest86 and/or extended windows memory diagnostic.

 

1 hour ago, MaalaisPoika said:

have you tried this?: 

 

1)Run 
2)type "msconfig"
3)Go under the "boot" tab
4)click "advanced options" button
5)UNCHECK! "Maximum memory"
6)Reboot 

 

1 hour ago, AdmiralMeowmix said:

I have Ryzen and this is what is known as a "cold boot" issue. To fix it you typically have to boot up into the bios and just exit the bios to boot and it should fix the issue. Clearing your CMOS might also help.

Oke, i have tried LOT of things: both xmp profils, no xmp profile, updated to latest bios, checked and uncheckd memory thing from msconfig.

Here's a pictures from BIOS, i am 80% sure that this is not OS related..

You can see in memory tab it detects just fine both dimms, and in every memory configuration, both dimms are present.

P.S. same thing 4gb in bios was even before i updated bios to latest or installed windows 10.

[pyrojoe34]

First, check your motherboard manual for DIMM positions. On that board if you have 1 stick it should be in DIMMA2 (two slots to the right of the CPU socket) and if you have two sticks they should be in DIMMA2 and DIMMB2 (four slots to the right of the socket). Is that how you have it set up?

 

Since you didn't mention it:

Did you try to install one stick at a time like I suggested? Install one stick into DIMMA2 and turn on the PC, check if it works normally and shows 4GB. Then turn off, take out the stick and repeat with the other one.

Did you run memtest86 on the system with two sticks in?

[chexor]

56 minutes ago, pyrojoe34 said:

First, check your motherboard manual for DIMM positions. On that board if you have 1 stick it should be in DIMMA2 (two slots to the right of the CPU socket) and if you have two sticks they should be in DIMMA2 and DIMMB2 (four slots to the right of the socket). Is that how you have it set up?

 

Since you didn't mention it:

Did you try to install one stick at a time like I suggested? Install one stick into DIMMA2 and turn on the PC, check if it works normally and shows 4GB. Then turn off, take out the stick and repeat with the other one.

Did you run memtest86 on the system with two sticks in?

Memory is in 2 and 4 slot (looking from cpu side to the right) that's fine, i had no time today to take out memory and test everyting like that, i will do it tomorrow, 1 question tho, i have crappy usb drive, sometimes it just turns off, can i memtest86 on it? right now cant grab another usb, it is late at night here..

[pyrojoe34]

1 minute ago, chexor said:

Memory is in 2 and 4 slot (looking from cpu side to the right) that's fine, i had no time today to take out memory and test everyting like that, i will do it tomorrow, 1 question tho, i have crappy usb drive, sometimes it just turns off, can i memtest86 on it? right now cant grab another usb, it is late at night here..

you can try but if it fails during the test (which can take a long time) then you'll have to redo the test.

[tim11111111]

Well that memory is on the QVL. 

Have you tried using this bios? It has new Agesa features and should help your SK hynix sticks since other brands other than Samsung seem to have more issues.

https://forum-en.msi.com/index.php?topic=283344.msg1615507#msg1615507

VA.53 is very recent but ever since va.52 the new agesa 1006 is here.

Also you should try booting with 1 stick into windows, turn of pc and put the other stick, then  boot with both 4gig sticks.

[chexor]

11 hours ago, pyrojoe34 said:

First, check your motherboard manual for DIMM positions. On that board if you have 1 stick it should be in DIMMA2 (two slots to the right of the CPU socket) and if you have two sticks they should be in DIMMA2 and DIMMB2 (four slots to the right of the socket). Is that how you have it set up?

 

Since you didn't mention it:

Did you try to install one stick at a time like I suggested? Install one stick into DIMMA2 and turn on the PC, check if it works normally and shows 4GB. Then turn off, take out the stick and repeat with the other one.

Did you run memtest86 on the system with two sticks in?

 

6 hours ago, tim11111111 said:

Well that memory is on the QVL. 

Have you tried using this bios? It has new Agesa features and should help your SK hynix sticks since other brands other than Samsung seem to have more issues.

https://forum-en.msi.com/index.php?topic=283344.msg1615507#msg1615507

VA.53 is very recent but ever since va.52 the new agesa 1006 is here.

Also you should try booting with 1 stick into windows, turn of pc and put the other stick, then  boot with both 4gig sticks.

I was sure it had something to do with BIOS settings, but this guy @pyrojoe34  was right. First i swapped dimms order placed second dimm where first was and first where second was, again 3.95 usable... I checked with 1st ram, works fine, shows 4gb ram, i changed it to 2nd dimm, again everything fine 4gb, but after that when i inserted them both same way like before, when i went into BIOS, there was 8gb of ram, happy me. In windows everything is fine, it shows now 8gb. Thanks all, probably was dumb bios..

[Ra1nier]

Exactly the same problem, and this solution worked for me to, Thanks

[just_dave]

On 6/25/2017 at 9:11 PM, chexor said:

Yesterday i got my new rig up and runing: 

MSI b350 PC MATE

r5 1500x

2x4gb hyperX 2400mhz ram (at MSI website listed as supported for my mobo)

 

When 1st time i started PC i have seen some weird thing, it shows only 4 gb of ram at top of screen (where you can find specs like clock speed etc), but when i went to memory tab, there's listed 2 dimms populated from 4, and both listed coractly as 2x4 gb dimms..

I couldnt install windows so i updated bios (and still same thing with 4 gb shown in bios) and menaged to install windows 10/ 64 bit.

In windows it shows me installed memory 8gb (3.95gb usable).

Does anyone know to solve this, is this normal on ryzen?

MSI mobos suck and your RAM is too slow, check if it is in slots A2 and B2

[chexor]

5 hours ago, dave_k said:

MSI mobos suck and your RAM is too slow, check if it is in slots A2 and B2

I solved that problem 2 months ago.. Well other then ram issue i had no other problems.. Only 2 options for b350 when i was buying mobo were msi b350 and asus b350 prime (and some mini ITX), asus prime looks terible imo, i hate red mobos, this one looks very good, and asus prime had bios issues aswell.. It's not much about msi or other brend, ryzen was still new 2 months ago, and bios'es were terible, update fixed everything..

P.S. i bumped up ram to 2666.. 8gb DDR4 here in my country is as expensive as new mobo right now..

[Fa mulan]

Well , chexor , I will just reply because this post helped me a lot. 
My specs are:
MSI Gaming plus B350
Ryzen7 1700
2x8gb hyperx 2400mhz
First time I turned my pc on , It said on bios I had 16gb. Then , after I restarted my pc and got to windows and stuff , it said I had 16gb , but only 7.95gb usable. Then I started to research about my problem and found this post. 
I did what pyrojoe34 recommended but A bit faster because I had my RAM at DIMMA2 and DIMMB2 and I only took the ram from DIMMA2 And had only DIMMB2 RAM inserted . I turned my pc on and it showed 8gb as it should . Then I put the RAM I took off at DIMMA2 and started pc again and it did show I have 16gb and 16 usable! 
Its the same thing pyrojoe34 said but with less steps ! Thanks mate!

[just_dave]

48 minutes ago, Fa mulan said:

MSI Gaming plus B350
Ryzen7 1700

facepalm combo