Tools usually just check CPUID and system configuration and don't actually test vulnerabilities. And not necessarily interpreting everything correctly. You can do that without running anything, just checking your OS updates and whether your CPU is out-of-order one, i.e. with speculative execution. N270 isn't and therefore isn't vulnerable.
If you want to truly test speculative vulnerabilities, compile this program: https://github.com/Eugnis/spectre-attack (EDIT: although this one probably won't work on N270, since it uses rdtscp, that it doesn't have, need to find version with just rdtsc)
If you want to truly test speculative vulnerabilities, compile this program: https://github.com/Eugnis/spectre-attack (EDIT: although this one probably won't work on N270, since it uses rdtscp, that it doesn't have, need to find version with just rdtsc)