View Full Version : CPU Speed Reported Incorrectly in WinXP

10-09-07, 01:03 PM
Has anyone else encountered this?


System properties reports 3.6GHz in WinXP when the CPU is actually clocked at 3.2GHz. The OS thinks the FSB is running at 450 instead of 400.

Never had this problem before with AMD processors. Its not really a big deal, CrystalCPUID & CPU-z both report the right clock speed, just wondered if there was a fix?

10-09-07, 01:20 PM
I get that also I have my cpu at 3.6 and windows xp reports it as 4.05 which tells me windows is reporting the multiplier wrong 450x8 =3.6 450x9= 4.05

10-09-07, 11:48 PM
The deal is if your cpu's standard multi is 9 or 10 as standard, then XP will use what ever fsb your using x9 or x10 so if your using a multi that under the standard multi windows dose not calculate it correctly.

example: my system.

E6600 9x266 = 2.4 XP see's it as 2.4
E6600 7x500 = 3.5 XP see's it as 4.5 current OC.

10-10-07, 12:21 AM
Yep, it's not a FSB problem at all. Windows reads the multiplier as what the CPU would be at stock. I wonder what the xtreme series of CPUs set to at default... 11?

10-11-07, 08:01 PM
Yeah it's 11 for the extreme CPU's.