Speed restrictions for Ram vehicles
Speed restrictions for Ram vehicles
When examining your CPU, it's common to find that only lower speeds are supported officially. XMP/DOCP/EXPO are typically seen as overclocking techniques.
the frequency isn't the main factor, it's the voltage that matters and you won't reach even mildly dangerous levels, especially with a low-quality OEM board that likely has a restricted BIOS and poor VRM. If the rated frequencies were important, I wouldn't be able to simply exceed three times the CPU's maximum RAM speed (1066) and have RAM running well above 2x its rated rate (1333). That sounds like an overstatement, considering older components usually have conservative ratings. Bloomfield Imcs are much more powerful now—DRD3 was just a year ago (2007) and even the best today are pushing over double their rated clock speeds, with some reaching 5200 for DDR3. Still, the idea of using high frequencies is questionable, especially with a CPU that only supports air cooling. If you push it beyond 3600 and enable XMP, the board might be faulty and you'd likely need a new one. The RAM speed would probably be stuck at around 5200 unless you're using a very high-end model. If you hear more from others and it still doesn't work, the board is probably not worth it. In this case, newer chips like the Zen4 APUs could handle much higher speeds—some even exceed 6200 with XMP enabled. Keep in mind what others are achieving as a reference.
They're installing an HP prebuilt, this doesn't fit. Probably they have a choice for XMP, but it's unlikely.