Processor temperature

Hello, just a tiny question about the temperature. after having to spend some time in cleaning my pc dust and whole, I still have a temperature of 81 degrees. is this ok or should I have to worry.

Some info of my pc
Operating System Microsoft Windows XP Professional
Version 5.1.2600 Service Pack 2 Nu 2600
Publisher Microsoft Corporation
Computer Black 2929T4VP5R
Manufacturer Packard Bell NEC
Model 00000000000000000000000
Type PC-based X86
Processor x86 Family 6 Model 6 Stepping 2 AuthenticAMD ~ 1462 Mhz
Version BIOS / Date Award Software International, Inc. 6.00 PG, 28/05/2002 6.00 PG, 28/05/2002
Version 2.3 SMBIOS
Windows directory C: \ WINDOWS
Directory system C: \ WINDOWS \ system32
Device Startup \ Device \ HarddiskVolume2

I do not see exactly what processor you have (apart from that it is an AMD AthlonXP ... probably one of the genre or something). This temperature, although is relatively high, & is not completely abnormal if the temperature processor is in full charge. It will perhaps be necessary to go for some cooling system.

it is necessary to change the CPU fan asap.

It can also be of a thermal paste which is old under the processor & you have to change it.