Re: [SOLVED] [gentoo-user] Less available memory than installed
On 03/06/21 21:20, Toldi Balázs wrote: > I tried booting from Minimal install disk. It had the same problem. > > Then I tried pulling the two ram sticks out and put them back. It seems > like this fixed my issue (Although I don't really know what caused it in > the first place). > Could it be that the 7 has a higher clock speed than the 5? Maybe one stick was badly seated (seems like it) and something like that could easily cause it to "disappear". > Thanks for everyone's suggestions :) > Cheers, Wol
Re: [SOLVED] [gentoo-user] Less available memory than installed
I tried booting from Minimal install disk. It had the same problem. Then I tried pulling the two ram sticks out and put them back. It seems like this fixed my issue (Although I don't really know what caused it in the first place). Thanks for everyone's suggestions :)
Re: [gentoo-user] Less available memory than installed
On 6/3/21 11:16 AM, Toldi Balázs wrote: > Hello! > > In my current PC I have 16 GB of RAM installed. It worked fine until today, > when I upgraded my CPU from a Ryzen 5 1500X to a Ryzen 7 2700. The system > boots up just fine, but when I use the free command the total memory is only > 8 GB. When I looked into the BIOS, it showed me the correct amount. What > should I do? > > Output of some relevant commands: > > free -h > > total used free shared buff/cache > available > Mem: 7,8Gi 4,4Gi 874Mi 192Mi 2,5Gi 3,1Gi > > cat /proc/meminfo > > MemTotal: 8158220 kB > MemFree: 910036 kB > MemAvailable: 3275008 kB [snip] boot from min-install Getnoo disk and check what is it showing/reporting.
Re: [gentoo-user] Less available memory than installed
Toldi Balázs wrote: > Hello! > > In my current PC I have 16 GB of RAM installed. It worked fine until > today, when I upgraded my CPU from a Ryzen 5 1500X to a Ryzen 7 2700. > The system boots up just fine, but when I use the free command the > total memory is only 8 GB. When I looked into the BIOS, it showed me > the correct amount. What should I do? > > Output of some relevant commands: > > free -h > > total used free shared buff/cache > available > Mem: 7,8Gi 4,4Gi 874Mi 192Mi 2,5Gi > 3,1Gi > > cat /proc/meminfo > > MemTotal: 8158220 kB > MemFree: 910036 kB > MemAvailable: 3275008 kB > Buffers: 2848 kB > Cached: 2492392 kB > SwapCached: 260 kB > Active: 1622988 kB > Inactive: 4198676 kB > Active(anon): 9500 kB > Inactive(anon): 3507660 kB > Active(file): 1613488 kB > Inactive(file): 691016 kB > Unevictable: 64 kB > Mlocked: 64 kB > SwapTotal: 16777212 kB > SwapFree: 16775140 kB > Dirty: 732 kB > Writeback: 0 kB > AnonPages: 3326444 kB > Mapped: 1322720 kB > Shmem: 193816 kB > KReclaimable: 160248 kB > Slab: 556240 kB > SReclaimable: 160248 kB > SUnreclaim: 395992 kB > KernelStack: 32704 kB > PageTables: 58964 kB > NFS_Unstable: 0 kB > Bounce: 0 kB > WritebackTmp: 0 kB > CommitLimit: 20856320 kB > Committed_AS: 15151980 kB > VmallocTotal: 34359738367 kB > VmallocUsed: 260776 kB > VmallocChunk: 0 kB > Percpu: 10944 kB > HugePages_Total: 0 > HugePages_Free: 0 > HugePages_Rsvd: 0 > HugePages_Surp: 0 > Hugepagesize: 2048 kB > Hugetlb: 0 kB > DirectMap4k: 1638688 kB > DirectMap2M: 6699008 kB > DirectMap1G: 1048576 kB > > > lshw -C memory > > *-memory > description: System Memory > physical id: 27 > slot: System board or motherboard > size: 7967MiB > *-bank:0 > description: [empty] > product: Unknown > vendor: Unknown > physical id: 0 > serial: Unknown > slot: DIMM 0 > *-bank:1 > description: DIMM DDR4 Synchronous Unbuffered (Unregistered) > 2400 MHz (0,4 ns) [empty] > product: 9905702-120.A00G > vendor: Kingston > physical id: 1 > serial: EE963485 > slot: DIMM 1 > width: 64 bits > clock: 2400MHz (0.4ns) > *-bank:2 > description: [empty] > product: Unknown > vendor: Unknown > physical id: 2 > serial: Unknown > slot: DIMM 0 > *-bank:3 > description: DIMM DDR4 Synchronous Unbuffered (Unregistered) > 2400 MHz (0,4 ns) [empty] > product: Unknown > vendor: Unknown > physical id: 3 > serial: 08240800 > slot: DIMM 1 > width: 64 bits > clock: 2400MHz (0.4ns) > > > uname -a > > Linux GlaDOS 5.10.27-gentoo #4 SMP Thu Jun 3 18:19:23 CEST 2021 x86_64 > AMD Ryzen 7 2700 Eight-Core Processor AuthenticAMD GNU/Linux > > > > Could this be a kernel setting issue? If you boot some other media like a USB stick, DVD/CD or something, does it show the right amount then? If it does, could be a kernel setting. If not, interesting problem. If the BIOS sees it, I doubt it is a hardware issue. It may not rule it out 100% but not likely. It's amazing that things like this still occur when large amounts of memory has been around for a good while now. Hope that helps? Dale :-) :-)
Re: [gentoo-user] Less available memory than installed
On 03/06/21 18:16, Toldi Balázs wrote: > Hello! > > In my current PC I have 16 GB of RAM installed. It worked fine until > today, when I upgraded my CPU from a Ryzen 5 1500X to a Ryzen 7 2700. > The system boots up just fine, but when I use the free command the total > memory is only 8 GB. When I looked into the BIOS, it showed me the > correct amount. What should I do? What does the mobo manual say? Are your memory boards in the correct banks? It could be the MMU in the Ryzen 7 insists on banks 1 & 2 being filled before 3 & 4 while the 5 isn't so fussy. I don't know about this, not having this sort of problem before, but I do know from building my own systems that the memory boards need to be paired up correctly, however you define "correct" ... Cheers, Wol
[gentoo-user] Less available memory than installed
Hello! In my current PC I have 16 GB of RAM installed. It worked fine until today, when I upgraded my CPU from a Ryzen 5 1500X to a Ryzen 7 2700. The system boots up just fine, but when I use the free command the total memory is only 8 GB. When I looked into the BIOS, it showed me the correct amount. What should I do? Output of some relevant commands: free -h total used free shared buff/cache available Mem: 7,8Gi 4,4Gi 874Mi 192Mi 2,5Gi 3,1Gi cat /proc/meminfo MemTotal: 8158220 kB MemFree: 910036 kB MemAvailable: 3275008 kB Buffers: 2848 kB Cached: 2492392 kB SwapCached: 260 kB Active: 1622988 kB Inactive: 4198676 kB Active(anon): 9500 kB Inactive(anon): 3507660 kB Active(file): 1613488 kB Inactive(file): 691016 kB Unevictable: 64 kB Mlocked: 64 kB SwapTotal: 16777212 kB SwapFree: 16775140 kB Dirty: 732 kB Writeback: 0 kB AnonPages: 3326444 kB Mapped: 1322720 kB Shmem: 193816 kB KReclaimable: 160248 kB Slab: 556240 kB SReclaimable: 160248 kB SUnreclaim: 395992 kB KernelStack: 32704 kB PageTables: 58964 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 20856320 kB Committed_AS: 15151980 kB VmallocTotal: 34359738367 kB VmallocUsed: 260776 kB VmallocChunk: 0 kB Percpu: 10944 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB Hugetlb: 0 kB DirectMap4k: 1638688 kB DirectMap2M: 6699008 kB DirectMap1G: 1048576 kB lshw -C memory *-memory description: System Memory physical id: 27 slot: System board or motherboard size: 7967MiB *-bank:0 description: [empty] product: Unknown vendor: Unknown physical id: 0 serial: Unknown slot: DIMM 0 *-bank:1 description: DIMM DDR4 Synchronous Unbuffered (Unregistered) 2400 MHz (0,4 ns) [empty] product: 9905702-120.A00G vendor: Kingston physical id: 1 serial: EE963485 slot: DIMM 1 width: 64 bits clock: 2400MHz (0.4ns) *-bank:2 description: [empty] product: Unknown vendor: Unknown physical id: 2 serial: Unknown slot: DIMM 0 *-bank:3 description: DIMM DDR4 Synchronous Unbuffered (Unregistered) 2400 MHz (0,4 ns) [empty] product: Unknown vendor: Unknown physical id: 3 serial: 08240800 slot: DIMM 1 width: 64 bits clock: 2400MHz (0.4ns) uname -a Linux GlaDOS 5.10.27-gentoo #4 SMP Thu Jun 3 18:19:23 CEST 2021 x86_64 AMD Ryzen 7 2700 Eight-Core Processor AuthenticAMD GNU/Linux
