I recently upgraded my stationary computer with a bunch of new components, just harddisks remaining. Anyway, I bought 32GB RAM, might've been a bit overkill, but RAM is cheap these days. The motherboard support up to 64GB RAM and I'm running Windows 7 64bit. The RAM is 4*8GB, but in windows it only detects 8GB RAM. What can be the cause of this and how do I fix it?
try downloading cpuid or speccy and check how much the system detects and in what slot it is detected in, after that reboot and check the bios, report back
System Manufacturer/Model Number Packard Bell iMedia 2218 -- Has Been Running For Almost 7 Years! OS Windows 7 Ultimate x86 CPU Intel Pentium D 925 @ 3.00GHz Motherboard Socket 775 MCP73VT-PM Memory 1GB DDR2 667MHz Graphics Card Overclocked Asus ATI Radeon X1600 Pro 512MB Sound Card Sound Blaster Audigy 570 Monitor(s) Displays 19" LCD Monitor; MW19E-AAA Screen Resolution 1440 x 900
Keyboard Wired PS/2 Keyboard Mouse Dell Wireless USB Mouse PSU 250w Packard Bell Standard Case Packard Bell standard Cooling Intel Socket 775 Air Cooler Hard Drives 500gb 7200rpm (Windows 7) ---
160gb 7200rpm (Backup) ---
1TB Iomega External Drive (7200rpm) Internet Speed Wireles --- Download - 6.63 Mbps Upload - 0.38 Mbps Other Info Currently Planning To Build New Computer --- Also Got A Samsung Galaxy Ace II (Plays All Games You Throw At It)
Very slow reply here, other things got in the way making the computer less of a priority. I've been in BIOS and found some concerning information. I've installed RAM in DIMM A1, B1, C1, D1. As it's what the manual said was most efficient. Information on the BIOS says:
I suppose I should change the location of the A1 and see what difference that makes, to see if it's the motherboard or RAM pieces? Anything else that could cause it ?
OS Windows 7 64 bit CPU i7 Motherboard Gigabyte UD5 Memory 6gb Gskill matched DDR3 Graphics Card Radeon HD4600 Sound Card All onboard Monitor(s) Displays HP 2159v
PSU Corsair 750w Case Antec 920 Cooling Aksas Nero Hard Drives 2 * 1tb WD Caviar Black Raid 0
I agree. The first port of call when Windows fails to recognise the full amount of RAM that you have installed is to check to see whether or not it is being recognised in the BIOS, because if the BIOS can't detect it during POST then the OS won't be able to either. As Nigsy has suggested, try each stick on its own in turn in Slot A1 to see if it is recognised.
System Manufacturer/Model Number Dwarf Dwf/11/2012 OS Windows 7 Ultimate x64 Service Pack 1 CPU Intel Core-i5-3570K 4-core @ 3.4GHz (Ivy Bridge) (OC 4.2GHz) Motherboard ASRock Z77 Extreme4-M Memory 4 x 4GB DDR3-1600 Corsair Vengeance CMZ8GX3M2A1600C9B (16GB) Graphics Card 2 x AMD Radeon HD7770 1GB CrossFired (OC 1100MHz/1250MHz) Sound Card Realtek High Definition on board solution (ALC 898) Monitor(s) Displays ViewSonic VA1912w Widescreen (VGA) Screen Resolution 1440x900
Keyboard Microsoft Comfort Curve Keyboard 3000 (USB) Mouse Microsoft Comfort Mouse 3000 for Business (USB) PSU XFX Pro Series 850W Semi-Modular Case Gigabyte IF233 Cooling 1 x 120mm Front Inlet 1 x 120mm Rear Exhaust Hard Drives OCZ Agility 3 SSD 120GB SATA III x2 (RAID 0)
Samsung HD501LJ 500GB SATA II x2
Hitachi HDS721010CLA332 1TB SATA II
Iomega 1.5TB Ext USB 2.0
WD 2.0TB Ext USB 3.0 Internet Speed NetGear DG834Gv3 ADSL Modem/Router (Ethernet) ~4.0 Mb/s (O2) Antivirus Avast! 7.0.1474 Browser IE 9 Other Info Optical Drive: HL-DT-ST BD-RE BH10LS30 SATA Bluray
Lexmark S305 Printer/Scanner/Copier (USB)
CTF-430 Tablet & Pen
WEI Score: 7.7/7.9/7.4/7.4/7.9
Asus Eee PC 1011PX Netbook (Windows 7 x86 Starter)
Computer type PC/Desktop System Manufacturer/Model Number Home made Desktop OS Windows 7 Home Premium 64 bit. SP-1 CPU Intel i7-960-3.2 @ 4.25 Motherboard ASUS P6X58D-E Memory KINGSTON KHX2000C9, Hyper X,12 GIGS Graphics Card MSI/Nvidia/460GTX-Cyclone 1GD5/OC Monitor(s) Displays DYNEX 40 IN. Screen Resolution 1920-1080 or 1280-720 HDMI
Keyboard M/S 3000 v 2.0 wireless Mouse M/S 5000 wireless PSU Corsair AX-850 Plus Gold Case Corsair 600T (Black) + side panel with 2 140 mm Noctua fans Cooling Corsair H50/2 Noctua NF-P12 (120 mm) Push/Pull- Hard Drives INTEL SSD 120GB-SER 510
Seagate 1TB SATA 600 7200 rpm Hard Drive Internet Speed 3.0 mb Antivirus Microsoft Security Eesentials Browser I.E. 10 default/Firefox Other Info LG BluRay-Read/Write
Sound system
KLipsch-THX
Asus Router RTN-12
2 Noctua 140 added on top of 600t case
Malwarebytes Anti Malware Professional
Windows 7 Firewall
I tried swapping about to see if it was the motherboard, slots or RAMs that was at fault. However changing the spot of all RAMs solved the problem. I believe I've just done a poor job at assembly and that the three others were poorly attached and had bad contact. anyway, problem solved