Computer says I only have 4GB ram instead of 8GB

[AceHigh]

I have done a memory test with no errors or faults, I have 64 bit OS, I haven't checked max memory, is there anyone here who can help me fix this?, also I have Ubuntu installed and don't know how to get onto the boot screen when starting up the computer so if you tell me to go to boot I need to know how because I haven't been able to get on it, here is what my loading screen looks like, this isn't a picture I took but it's very similar to mine

Here is a picture I took from GeForce Experience, says I only have 4GB when I should have 8GB

Spec:

Case
COOLERMASTER CM STORM ENFORCER - GAMING ENTHUSIAST CASE
Processor (CPU)
Intel® Core™i5 Quad Core Processor i5-4670 (3.4GHz) 6MB Cache
Motherboard
ASUS® Z87-A: ATX, USB3.0, SATA6GB/S, SLi, XFIRE + **FREE GAME**
Memory (RAM)
8GB KINGSTON HYPER-X GENESIS DUAL-DDR3 1600MHz, X.M.P (2 x 4GB KIT)
Graphics Card
2GB NVIDIA GEFORCE GTX 770 - 2 DVI, HDMI, DP - 3D Vision Ready
1st Hard Disk
2TB WD CAVIAR BLACK WD2003FZEX, SATA 6 Gb/s, 64MB CACHE (7200rpm)
1st DVD/BLU-RAY Drive
24x DUAL LAYER DVD WRITER ±R/±RW/RAM
Memory Card Reader
INTERNAL 52 IN 1 CARD READER (XD, MS, CF, SD, etc) + 1 x USB 2.0 PORT
Power Supply
CORSAIR 650W RM SERIES™ MODULAR 80 PLUS® GOLD, ULTRA QUIET
Processor Cooling
Super Quiet 22dBA Triple Copper Heatpipe Intel CPU Cooler
Sound Card
ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
Wireless/Wired Networking
10/100/1000 GIGABIT LAN PORT - AS STANDARD ON ALL PCs
USB Options
MIN. 2 x USB 3.0 & 4 x USB 2.0 PORTS @ BACK PANEL + MIN. 2 FRONT PORTS
Power Cable
1 x 2 Metre UK Power Cable (Kettle Lead)
Operating System
Genuine Windows 7 Home Premium 64 Bit w/SP1 - inc DVD & Licence
DVD Recovery Media
Windows 7 Home Premium (64-bit) DVD with paper sleeve

 

[bbnck]

When you dual boot a Linux distribution with Windows (or even just other distributions), you will be presented with a boot screen almost identical to what you have shown in your fist screenshot - called GRUB (GRand Unified Bootloader). Simply press Enter on your keyboard to boot into the currently highlighted option, and the arrow keys to highlight other options.

From everything you've said, it sounds like either the extra 4 GB of memory has not been seated correctly on the motherboard (which is an easy fix if this is the case) or was mistakenly not included when the machine was built. I would suggest contacting PC Specialist directly for help. You can contact them by e-mail on [email protected] or by calling 0333 011 7000.

 

[ubuysa]

I know you say you've installed a 64-bit OS but the most likely reason for what you see is that the PC is in 32-bit mode. To check that you have installed the 64-bit version go to Control Panel > System and in the display that follows the "System Type" will tell you whether you have a 64-bit or 32-bit OS installed.

You can also check the C:\ drive in Windows, if you have a 64-bit version you'll have a Program Files folder and a Program Files (x86) folder. If you don't have both it's a 32-bit system.

I think it's important that you double-check what system you have installed before looking at anything else.

 

[AceHigh]

I know you say you've installed a 64-bit OS but the most likely reason for what you see is that the PC is in 32-bit mode. To check that you have installed the 64-bit version go to Control Panel > System and in the display that follows the "System Type" will tell you whether you have a 64-bit or 32-bit OS installed.

You can also check the C:\ drive in Windows, if you have a 64-bit version you'll have a Program Files folder and a Program Files (x86) folder. If you don't have both it's a 32-bit system.

I think it's important that you double-check what system you have installed before looking at anything else.

Read the thread in future please

I took out my RAM and washed them both in soapy water there all good now, got 8GB again

 

[ubuysa]

Read the thread in future please

You're welcome. I'm happy to give up my time, energy, and experience to try to help you solve your problem.

People make mistakes, it's always worth double checking these things.

I took out my RAM and washed them both in soapy water there all good now, got 8GB again

Glad you got it sorted.