ACER Nitro AN515-55-78BG RAM upgrade specifications

ACER AN515-55-78BG ACER AN515-55-78BG ACER AN515-55-78BG ACER AN515-55-78BG ACER AN515-55-78BG

The ACER Nitro 5 series AN515-55-78BG laptop features DDR4-SDRAM memory with 2x SO-DIMM upgrade slots. Maximum RAM capacity reaches 32 GB, supporting compatible DDR4 modules operating at 2933 MHz frequency. The SO-DIMM form factor specifications enable memory expansion for enhanced multitasking and performance capabilities. Upgrade compatibility requires DDR4-SDRAM modules meeting the specified frequency and form factor requirements for the AN515-55-78BG model.

Memory Upgrade Specifications

SpecificationValue
Memory slots2x SO-DIMM
Form factorSO-DIMM
Memory typeDDR4-SDRAM
Frequency2933 MHz
Maximum RAM32 GB
Voltage1.2V
Number of pins260-pin
InterfacePC4
PC Speed RatingPC4-2933 (PC4-23464)
Bandwidth23.5 GB/s
Laptop Release date10 March 2021

Additional Notes

  • The Acer Nitro AN515-55-78BG supports DDR4-3200 modules natively, though the listed 2933 MHz frequency indicates the system may be running at a reduced speed tier. Upgrading to matched 3200 MHz SO-DIMMs will provide marginal latency reduction and may unlock higher performance if the BIOS supports XMP/DOCP profiles.
  • Both SO-DIMM slots must be populated simultaneously to achieve dual-channel memory architecture, which delivers approximately 50% greater bandwidth than single-channel operation. This becomes significant during GPU-accelerated workloads common in gaming and content creation scenarios.
  • The 32 GB maximum capacity ceiling means the system cannot accommodate a 48 GB configuration (single 48 GB module or paired 24 GB modules). Planning should reflect this hard limit for future-proofing beyond 8-10 year usage horizons.
  • Thermal constraints exist within the chassis cavity. SO-DIMM modules with tall heat spreaders may contact the bottom case panel or internal components. Standard-height modules ensure risk-free installation without requiring chassis modification or voiding protections.
  • Adding capacity beyond the factory configuration does not require BIOS modifications on this platform. The chipset auto-detects SO-DIMM population and timing, eliminating configuration steps that typically void manufacturer support on consumer systems.
  • Storage performance will not improve with RAM upgrades since the upgrade affects only memory subsystem capacity and bandwidth, not disk I/O pathways. System responsiveness gains apply solely to workloads exceeding current physical memory allocation.