On Saturday my PC was working fine and i took it to a friends house and i brought it home that night and hooked it up the next morning and i started it up and it is recognizing a Athlon XP 1800+ and i have a Athlon XP 2400 and so i checked the system information and it said Athlon XP 2400 and then i tried playing a game and my computer restarted. Then i noticed the Memory Frequency was at 200MHz and usually its at 133MHz. I tried changing the CPU Extern Freq(Which i thought was the problem) to 100 and nothing happened. Then had it once say CPU Overspeed. Can anyone help me, did my computer over clock itself? Also another interesting thing is my USB keyboard wasn't being recognized so i had to plug in a different keyboard. I have had the computer for over 3 years and have never really had a problem until now.
Help CPU Overspeed
- Thread starter Waters
- Start date
The first mistake was changing any cpu settings. WHat most likely happened there is not overclocking but the cpu backclocked itself from overheating. What speed is the DDR memory there? PC2100, PC2700, PC3200?
When an XP3200 overheated here when the fan on a 3rd party cooler went the 3200 was then seen as an XP2500 if you lowered the fsb down to 166 just to see the system then start up. With the keyboard not being detected that sounds more like a board fault and may not actually be the cpu itself if the bios went flaky on you.
As a last resort you could try updating the bios with the last version if not already in use and replace the battery on the board if that went weak on you. But you may have to start looking at some newer hardwares fast.
When an XP3200 overheated here when the fan on a 3rd party cooler went the 3200 was then seen as an XP2500 if you lowered the fsb down to 166 just to see the system then start up. With the keyboard not being detected that sounds more like a board fault and may not actually be the cpu itself if the bios went flaky on you.
As a last resort you could try updating the bios with the last version if not already in use and replace the battery on the board if that went weak on you. But you may have to start looking at some newer hardwares fast.
its pc2700. But if it backclocked why would it raise the frequency to 200Mhz when it was originally 133MHz. Also i replaced the battery, and it recognized the athlon xp 2400 and was at 100Mhz frequency which i set it to but it said CMOS Checksum Defaults Loaded and said lioke Warning CPU clock or something changed and i couldnt go any further. I changed it back to 133Mhz and rebooted and then it said the correct processor again but 200Mhz frequency.
Flaky bios? or one failing? 
It does seem to point at that as being the main reason. But the battery being weak after 3yrs. time is no suprise at all here. On the Socket A build I saw the 3200 cook on it refused to do anything one day just after first year mark. A quick trip to a local Walmart saw a fresh battery go in and wham! everything then fired up normally.
Now you have to start looking at the last and latest bios version to see if an update or simple reflash will get the rest of this corrected for you there. Hopefully the bios programming is the only problem left and not a failing eprom.