I have bought new RAM, and it's not detected.
I got new RAM, 16 GB, to switch my old one, 4 GB + 4 GB. New one isn't detected by my laptop OS(?)/software(?). But when I installed it, it didn't work, I got only 4 GB.
But the things is, some programs/utils cat detect it here I will paste all the output of the commands I've tried
System: Host: lmde Kernel: 4.8.0-53-generic x86_64 (64 bit gcc: 5.4.0) Desktop: Cinnamon 3.4.3 (Gtk 3.18.9-1ubuntu3.3) Distro: Linux Mint 18.2 Sonya Machine: System: LENOVO product: 20250 v: Lenovo Z710 Mobo: LENOVO model: Durian 7A1 v: 31900004Std Bios: LENOVO v: 7FCN35WW date: 09/02/2013 CPU: Quad core Intel Core i7-4700MQ (-HT-MCP-) cache: 6144 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 19156 clock speeds: max: 2400 MHz 1: 2400 MHz 2: 2147 MHz 3: 2350 MHz 4: 2400 MHz 5: 2400 MHz 6: 2400 MHz 7: 2399 MHz 8: 2400 MHz Graphics: Card-1: Intel 4th Gen Core Processor Integrated Graphics Controller bus-ID: 00:02.0 Card-2: NVIDIA GK107M [GeForce GT 745M] bus-ID: 01:00.0 Display Server: X.Org 1.18.4 drivers: intel (unloaded: fbdev,vesa) FAILED: nouveau Resolution: firstname.lastname@example.org GLX Renderer: Mesa DRI Intel Haswell Mobile GLX Version: 3.0 Mesa 12.0.6 Direct Rendering: Yes Audio: Card-1 Intel 8 Series/C220 Series High Definition Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0 Card-2 Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller driver: snd_hda_intel bus-ID: 00:03.0 Sound: Advanced Linux Sound Architecture v: k4.8.0-53-generic Network: Card-1: Intel Wireless 7260 driver: iwlwifi bus-ID: 07:00.0 IF: wlp7s0 state: up mac: <filter> Card-2: Qualcomm Atheros QCA8171 Gigabit Ethernet driver: alx port: 3000 bus-ID: 08:00.0 IF: enp8s0 state: down mac: <filter> Drives: HDD Total Size: 1240.3GB (6.3% used) ID-1: /dev/sda model: ST1000LM014 size: 1000.2GB ID-2: /dev/sdd model: ADATA_SP580 size: 240.1GB Partition: ID-1: / size: 220G used: 20G (10%) fs: ext4 dev: /dev/sdd2 RAID: No RAID devices: /proc/mdstat, md_mod kernel module present Sensors: System Temperatures: cpu: 59.0C mobo: 59.0C gpu: 45.0 Fan Speeds (in rpm): cpu: N/A Info: Processes: 294 Uptime: 1:24 Memory: 2301.1/3863.2MB Init: systemd runlevel: 5 Gcc sys: 5.4.0 Client: Shell (zsh 5.1.1) inxi: 2.2.35
sudo lshw -short -C memory (pasting with
sudo so others cat just copy-paste)
H/W path Device Class Description ============================================================ /0/0 memory 128KiB BIOS /0/4/b memory 32KiB L1 cache /0/4/c memory 256KiB L2 cache /0/4/d memory 6MiB L3 cache /0/a memory 32KiB L1 cache /0/2a memory 20GiB System Memory /0/2a/0 memory 16GiB SODIMM DDR3 Synchronous 1600 MHz (0,6 ns) /0/2a/1 memory DIMM [empty] /0/2a/2 memory 4GiB SODIMM DDR3 Synchronous 1600 MHz (0,6 ns) /0/2a/3 memory DIMM [empty]
sudo lshw -class memory
*-firmware description: BIOS vendor: LENOVO physical id: 0 version: 7FCN35WW date: 09/02/2013 size: 128KiB capacity: 4032KiB capabilities: pci upgrade shadowing cdboot bootselect edd int13floppynec int13floppytoshiba int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int9keyboard int10video acpi usb biosbootspecification uefi *-cache:0 description: L1 cache physical id: b slot: L1 Cache size: 32KiB capacity: 32KiB capabilities: synchronous internal write-back instruction *-cache:0 description: L1 cache physical id: b slot: L1 Cache size: 32KiB capacity: 32KiB capabilities: synchronous internal write-back instruction configuration: level=1 *-cache:1 description: L2 cache physical id: c slot: L2 Cache size: 256KiB capacity: 256KiB capabilities: synchronous internal write-back unified configuration: level=2 *-cache:2 description: L3 cache physical id: d slot: L3 Cache size: 6MiB capacity: 6MiB capabilities: synchronous internal write-back unified configuration: level=3 *-cache description: L1 cache physical id: a slot: L1 Cache size: 32KiB capacity: 32KiB capabilities: synchronous internal write-back data configuration: level=1 *-memory description: System Memory physical id: 2a slot: System board or motherboard size: 20GiB *-bank:0 description: SODIMM DDR3 Synchronous 1600 MHz (0,6 ns) product: CT204864BF160B.C16 vendor: Unknown physical id: 0 serial: A4205EAD slot: DIMM0 size: 16GiB width: 64 bits clock: 1600MHz (0.6ns) *-bank:1 description: DIMM [empty] product: Empty vendor: Empty physical id: 1 serial: Empty slot: DIMM1 *-bank:2 description: SODIMM DDR3 Synchronous 1600 MHz (0,6 ns) product: M471B5173BH0-YK0 vendor: Samsung physical id: 2 serial: 136B8093 slot: DIMM2 size: 4GiB width: 64 bits clock: 1600MHz (0.6ns) *-bank:3 description: DIMM [empty] product: Empty vendor: Empty physical id: 3 serial: Empty slot: DIMM3
total used free shared buff/cache available Mem: 3863 2406 277 430 1178 696 Swap: 0 0 0
BOOT_IMAGE=/boot/vmlinuz-4.8.0-53-generic root=UUID=91af3ab8-8c93-40ef-930a-2dc7038f2dfc ro elevator=deadline quiet splash vt.handoff=7
dmesg | grep -i memory
did but it's very long
-I booted to BIOS and it showed that there is 20 GB (but it said in MB, something like 20480 MB)
-I visited Intel page for my processor(google for
Intel® Core™ i7-4700MQ Processor can't paste links, have newbie restrictions) for my CPU and it said that it does support 32 GB
-I booted to Windows 10 live CD and it show that it has 20 GB but only 4 GB is available
-I did memtest86 here are the screenshot with results
what I don't like about it is that in the top left corner it shows that [c]Memory: 4009 MB[/c]. So was the 16 GB detected?
-I booted to Linux Mint live CD and it showed exactly the same as current version (4 GB).
-I found on internet that it can be caused by that contacts on the module was made "dirty" with dirt on my hands, so plugged it out got, wipe with ethanol, I did that but not with ethanol, instead of it I used vodka same results didn't work.
-I swapped RAM modules, didn't work.
I don't remember exactly, but also with installation the GRUB menu broke, what I mean is I got black screen for 3 seconds (which I can configure from
The only thing where I kind of "broke the rule" is before buying it, I visited (google for
Lenovo Lenovo Z710 compatible upgrades crucial) crucial website for my laptop (they have very fluent interface to choose the upgrades) and it says that the max RAM is 16 GB (8 + 8 ), I've ignored it.
Handle 0x0005, DMI type 5, 24 bytes Memory Controller Information Error Detecting Method: None Error Correcting Capabilities: None Supported Interleave: One-way Interleave Current Interleave: One-way Interleave Maximum Memory Module Size: 8192 MB