xp pro checksum error

  johnnyrocker 14:18 29 Mar 2008

i have the above system with sp 2 i am again encountering above prob on boot up, the machine first did it about two weeks ago when it was new (5yrs ago) but settled down, it has sporadically returned every couple of years and last year when it was consistent i changed the battery on advice of this forum, it did not solve the prob which eventually went away of its own accord, it is now back again and occurring every boot up which involves resetting cmos and continuing. any ideas on next move please?


  johnnyrocker 14:26 29 Mar 2008

typo was not new two weeks ago;)


  Fruit Bat /\0/\ 14:37 29 Mar 2008

Only two cures I know of for checksum error:-

1. battery problem easy to do and no risk.

2. Update the BIOS with a BIOS FLASH and hope nohing goes wrong during the process otherwise the board is dead.

  johnnyrocker 14:43 29 Mar 2008

how would i attempt bios flash and what are the risks please?


  skidzy 14:49 29 Mar 2008

click here
click here

Though do check there is a bios update availble from the motherboard manufacuter.

  johnnyrocker 15:23 29 Mar 2008

seems a bit long winded and difficult i think i will wait to move house then play or buy another one.


  johnnyrocker 18:03 30 Mar 2008

if any help i notice that on shut down the clock goes to zero before it finally closes, no idea if it helps though.


  skidzy 18:43 30 Mar 2008

Jonny i would first try a new cmos battery before considering a bios flash.Cheap enough and certainly worth the try.

  johnnyrocker 18:54 30 Mar 2008

didnt work last time but is the better of the two options and thanks will give it a go.


  dan** 18:58 30 Mar 2008

It could be a dry joint or the motherboard's bios on the way out.

  skidzy 19:02 30 Mar 2008

Johnny,the clock resetting is a classic sign of a dying/dead cmos battery.£2.99 from Wilkinson click here

As pointed out,do consider the mobo maybe on its last legs or even a failing psu.

This thread is now locked and can not be replied to.

Elsewhere on IDG sites

Honor 9 Lite review

How Social Media has Propelled Political Graphic Design and Art in the Last Decade

The best kids apps for iPhone & iPad 2018

HomePod d’Apple : date de sortie, prix et fiche technique