We want to add RAM, but IT says 'that doesn't help anymore'. What's true?
Whether a RAM upgrade pays depends on page faults and swap, not the total amount. On modern workstations the upgrade only helps when memory is actually under pressure.
Try this first
- 1Open Resource Monitor, Memory tab, and watch 'Hard Faults/sec'. Sustained spikes above 100 mean swapping to disk: then RAM helps. On Mac use Activity Monitor's Memory Pressure (red = upgrade pays).
- 216 GB on a Windows laptop with 1 or 2 heavy Office apps and a browser is often enough. Add Docker, VMs, multiple IDEs, video editing or LLM tooling and 32 GB pays.
- 3Check the upgrade is physically possible. Many ultrabooks have soldered memory. 'wmic memorychip get capacity, speed' on Windows or 'system_profiler SPMemoryDataType' on macOS shows slots and types.
- 4Buy modules matching the existing speed and latency or everything runs at the slowest clock. For dual-channel: use two identical modules, no mix.
- 5Right after installation run one MemTest86 pass (USB boot) to weed out faulty modules. A few bit errors look like random crashes and are brutal to debug.
- 6Document per machine what's installed and the max. Saves the next IT person 20 minutes.
When to bring us in
If there's no measurable difference after the upgrade, the bottleneck was elsewhere (disk, CPU, background services). Re-measure with Resource Monitor and focus on the process group with the highest fault rate.
See also
- My laptop is suddenly slowThree main suspects: a runaway background process, near-full disk, or a Windows update in progress.
- One specific application is slow for everyoneIf an app is slow for one person: local. For everyone at once: server side or vendor side.
- Opening files from the file server takes minutesOften the server itself is fine and the issue is network routing or stalling DNS resolution.
None of the above fits?
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