Bad RAM SODIMM??

merkat106

Geek
Member
Just upgraded an old HP laptop (dv9650us) to 4Gb DDR2 from what Windows reported as 2Gb. I don't recall what the BIOS reported.

Now I am looking at the sticks I removed and see that I had upgraded the RAM in this laptop before (mismatched sticks) totalling 3Gb.

Before I formatted to x64 Vista, x86 Vista reported all 4Gb (even though it wasn't using all of it), so I figured that Windows should have reported all 3GB if both DIMMs worked correctly.

Could one of the older DIMMs be bad? I don't have another laptop that supports DDR2 to test...
 

My Computer

System One

  • Manufacturer/Model
    Custom mATX
    CPU
    AMD Athlon X2 5600+ Brisbane 2.9Ghz (dual core)
    Motherboard
    Asus M3N78-VM Green
    Memory
    Kingston 8 GB DDR2 PC-6400
    Graphics Card(s)
    PNY NVIDIA GeForce 9400GT 512MB PCIe
    Monitor(s) Displays
    Samsung 22", Samsung 24"
    Hard Drives
    WD RE3 320GB (WD3202ABYS), Samsung SPINPOINT F1 640GB (HD642JJ)
    External Drives: WD MyBook Essentials 500GB, WD 120GB, an old Maxtor 80GB. Portables: Simpletech 160GB, WD Passport 250GB.
    PSU
    Corsair 620W modular
    Case
    CoolerMaster Elite 341 mATX
    Cooling
    Thermaltake TR2-R1
    Keyboard
    HP Elite Keyboard
    Mouse
    Microsoft Laser & Logitech Marble
    Internet Speed
    Cable
    Other Info
    Printers: HP Photosmart C7280, Oki-Data 3400n, HP Officejet 4300

My Computer

System One

  • Manufacturer/Model
    Dell XPS420
    Memory
    6 gig
    Graphics Card(s)
    ATI Radeon HD3650 256 MB
    Sound Card
    Intergrated 7.1 Channel Audio
    Monitor(s) Displays
    Dell SP2009W 20 inch Flat Panel w Webcam
    Hard Drives
    640 gb
    Cooling
    Fan
    Keyboard
    Dell USB
    Mouse
    Dell USB 4 button optical
    Other Info
    DSL provided by ATT
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