When a RAM upgrade calls for exact module specifications, RAMMon can show the data stored on the installed memory without opening the computer. PassMark’s utility reads Serial Presence Detect (SPD) information and reports details such as memory type, speed, timings, and manufacturer.
RAMMon reads SPD details from memory modules
SPD is the module data that a computer can retrieve to identify memory hardware and its supported settings. RAMMon presents fields including capacity, manufacturer, serial number, model part number, clock speed, module voltage, and supported CAS latencies. The exact fields vary with the memory type.
The program supports SPD information for DDR2, DDR3, DDR4, and DDR5 modules, as well as XMP and EPP data and some older memory types. For certain modules, the reported specifications also include physical details such as width, thickness, or maximum operating temperature.
RAMMon reports timings, transfer rate, and channel mode
It also shows how the memory is actually running: timings, transfer rate, single or dual channel and related settings. It also gathers benchmark results for cache and physical memory, giving the report both configuration details and performance measurements.
A typical check is to read the installed modules’ specifications before choosing replacement or additional RAM.
SPD access depends on the computer platform
The motherboard and CPU chipset affect which SPD values RAMMon can retrieve. Some laptops use memory chips soldered to the board, and those chips may not expose SPD data; on other systems, the program may not be able to access the bus used to read it. RAMMon can read DDR5 SPD data on supported systems even when the BIOS disables SPD writes.
Pros
- Reports SPD capacity, manufacturer, serial number, and model part number
- Shows supported CAS latencies and module voltage
- Displays memory timings, transfer rate, and channel mode
- Includes cache and physical-memory benchmark results
Cons
- Available SPD fields depend on the motherboard and CPU chipset
System requirements: Administrator privileges
What does RAMMon show about installed memory?
It reports SPD information such as module capacity, manufacturer, serial number, model part number, speed, voltage, and supported timings.
Does RAMMon test memory stability?
RAMMon displays cache and physical-memory benchmark results, but it does not provide a memory stability test.
Why might some memory details be missing?
SPD access depends on the motherboard and CPU chipset. Soldered memory may not expose SPD data, and some systems restrict access to the bus used to retrieve it.
