You can check here
http://www.asus.com.tw/support/cpusupport/cpusupport.aspx
This is for your motherboard
The following table shows the support for CPU / Motherboard
CPU Since PCB Since BIOS Memo
Celeron 1.7 GHz(400 MHz FSB) ALL 1002
Celeron 1.8 GHz(400 MHz FSB) ALL 1002
Celeron 2.0 GHz(400 MHz FSB) ALL 1006
Celeron 2.1 GHz(400 MHz FSB) ALL 1006
Celeron 2.2 GHz(400 MHz FSB) ALL 1006
Celeron 2.3 GHz(400 MHz FSB) ALL 1011.001
Celeron 2.4 GHz(400 MHz FSB) ALL 1011.001
Celeron 2.5 GHz(400 MHz FSB) ALL 1011.004
Celeron 2.6 GHz(400 MHz FSB) ALL 1011.004
Celeron 2.7 GHz(400 MHz FSB) ALL 1011.007
Celeron 2.8 GHz(400 MHz FSB) ALL 1011.007
P4-1.4 GHz(Socket478)(400 MHz FSB) ALL ALL
P4-1.5 GHz(Socket478)(400 MHz FSB) ALL ALL
P4-1.6A GHz(Socket478)(400 MHz FSB) ALL 1002
P4-1.6 GHz(Socket478)(400 MHz FSB) ALL ALL
P4-1.7 GHz(Socket478)(400 MHz FSB) ALL ALL
P4-1.8A GHz(Socket478)(400 MHz FSB) ALL 1002
P4-1.8 GHz(Socket478)(400 MHz FSB) ALL ALL
P4-1.9 GHz(Socket478)(400 MHz FSB) ALL ALL
P4-2A GHz(Socket478)(400 MHz FSB) ALL 1002
P4-2 GHz(Socket478)(400 MHz FSB) ALL ALL
P4-2.20 GHz(400 MHz FSB) ALL 1002
P4-2.26 GHz(533 MHz FSB) ALL 1002
P4-2.40 GHz(400 MHz FSB) ALL 1002
P4-2.40B GHz(533 MHz FSB) ALL 1002
P4-2.50 GHz(400 MHz FSB) ALL 1005
P4-2.53 GHz(533 MHz FSB) ALL 1002
P4-2.60 GHz(400 MHz FSB) ALL 1005
P4-2.66 GHz(533 MHz FSB) ALL 1005
P4-2.80 GHz(533 MHz FSB) ALL 1005
P4-3.06 GHz(533 MHz FSB) (HyperThreading) 1.03 1008 With IAA version
2.2.2 or later.
I have an ASUS P4T533-C motherboard running an Intel P4 1.8 B CPU at
400MHZ. What is the fastest CPU that I can install in this board.
Most of the CPU that I see with higher speeds do not run at 400MHZ.
Any ideas please.
Thanks