Guaranteed compatible upgrades for:

HP/Compaq m Series PC m1277c

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WD Black 4TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive

WD Black 4TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive

System Specifications

Maximum Memory:

4GB

Expansion:

4 Sockets

Standard Memory:

256MB (Removable) or
512MB (Removable) or
1GB (Removable)

CPU/Chipset:

Intel Pentium 4 3.2 GHz Intel 915P

Bus Architecture:

PCI; PCI Express; USB

Mfr's System P/N's:

PW522AA

Upgrade Path:

Virtually any configuration up to 4GB can be reached using 1GB modules.

Comments:

MODULES MAY BE INSTALLED ONE AT A TIME; however, they must be added in like pairs to take advantage of Dual Channel Mode.
If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation).