For new builds
It posted. It boots. Does it hold?
A new build's first job is to prove the cooler and the power limits. SystemCheck loads every core, reads the memory, and shows the shape of what happened.
What the report tells you
Three figures, each with its reading.
Curve shape
held / step / slide
A new build should hold. A step means a motherboard power limit is lower than you intended; a slide means the cooler is not seated or the case has no airflow.
Memory bandwidth
GB/s
From one thread and from all of them. A kit running at its fallback speed instead of its rated profile shows here before anything else notices.
Loop stability
%
On a deep run the GPU pass loops three times and the report states worst over best, the same form 3DMark uses, so a card that sags on the third loop is caught.
The diagnosis
The shape of the curve, read for your case.
01Held
The build is right. Save the report; it is the baseline every future change is compared against.
02A single step down
Check the board's power limits. Many boards default to the chip's conservative sustained wattage; many owners meant to raise it.
03A steady slide
Reseat the cooler, check the paste, check the fan headers. A new build should not slide.
Every class comes with a stated confidence and the measurement’s own noise floor. How the shape is read
Where a browser stops
What it cannot tell you.
- No temperature: the browser cannot read the sensor, so pair the run with a monitoring tool the first time.
- No memory speed in megahertz: the report gives bandwidth and latency, which is the effect of the speed, not the setting.
- No storage test: a new drive's speed needs a disk tool.
Which run
Deep, 8 minutes.
A first baseline should be the deep run: the settled level with its spread, and the GPU loops. Everything later compares against it.
Both kinds are free. The choice is on the set-up screen.
Questions
Asked in these words.
- How do I check a new PC build is cooling properly?
- Run the deep test. A healthy build holds within a few percent of its peak for three minutes. A curve that slides is a cooler or airflow problem; a curve that steps once is a power limit, which may be the board's default rather than a fault.
- How can I tell if my RAM is running at the right speed?
- The memory stage reports bandwidth from one thread and from all threads. A kit running at its fallback speed shows markedly lower bandwidth than the same kit at its rated profile; compare against the figure after enabling the profile in the BIOS.
- Should I save the first run?
- Yes. The browser keeps the last five reports, and any later run on the same processor is compared against the previous one, curve over curve. The first run on a new build is the baseline every change is measured against.