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Ram Compatibility

HP Recommended
HP Pavilion p6255d
Microsoft Windows 10 (64-bit)

Hello everyone, i am using HP Pavilion p6255d and i want to upgrade the RAM. my current installed ram is PC3-10600 MB/sec(DDR3 - 1066mhz).. here are the compatible ram on my desktop

  • PC3-10600 (DDR3-1333)
  • PC3-8500 (DDR3-1066)
  • PC3-6400 (DDR3-800)

,someone gave me zeppelin  4gb 1333mhz . but when i remove my current ram and use this zeppelin ram when i open the desktop i keeps beep sound. first 1 beep is short and second is 1 long beep. what should i do?  does my pc can support only 1pc of 4gb ddr3 1333mhz or it only supports 2pcs of 2gb ddr3 133mhz?

because when is use zeppelin 4gb ddr3 1333mhz i still have one left slot for my ram.

Thank you in advance. i hope someone will help me 🙂 

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HP Recommended


from product page, originally installed

2 GB
  • Amount: 2 GB
  • Speed: PC3-10600 MB/sec (message as PC3-8500)
  • Supports DDR3 DIMMs only
  • Dual channel memory architecture
  • Two DDR3 DIMM (240-pin) sockets
  • DIMM types:
    • PC3-10600 (DDR3-1333)
    • PC3-8500 (DDR3-1066)
    • PC3-6400 (DDR3-800)
  • Non-ECC memory only, unbuffered
  • Supports 2 GB DDR3 DIMMs ⁉️
  • Supports up to 4 GB on 64-bit PCs
  • Maximum memory only if using 2GB DDR3 DIMM modules

so yes it appears to be 2 * 2gb only

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