Basic checklist:
- Are the 1400 and the 1800 made for the same FSB (Front side bus)?
T-bird 1400's come in two flavours, a FSB of 100 Mhz and 133 Mhz
- Bios supports XP 1800+?
- CPU identified automatically and correctly ?
or
- are CPU parameters set manually & correctly (FSB, multiplier, voltages)?
 
H.

Correct me if I'm wrong, but did AMD move to a smaller die somewhere between the 1400 and 1800?

ok the fsb for the 1.4 was 133mhz. the bios does properly recognize and support the 1800+, the bios has the voltage and multiplier set at auto. that seems to be the best setting. i actually put the 1800+ back in after i installed win xp and now for some strange reason its running with out a lock up, but wouldn't let me install xp at all when i had it in before. if anyone can explain why the computer did that i would be grateful cause i had spent the past 7 hours tryin to figure out why it was acting like it was.

You're asking for guesses. Microsoft's troubleshooter says that the stop error you received was due to memory (Ram) but this, in turn is tied to a file setupdd.*. You always take this info with a grain of salt. Sometimes Windows (9X,2K,XP) itself doesn't distinguish between what is actual Ram and virtual memory at a certain level. Since you didn't talk about Ram removal or hard disk isolation but only removing accessories, let's pretend that the problem was on the hard disk the whole time.
 
The only thing you did apparently was reinstall XP. So, two questions - had the previous installation used bootvis that you may have installed to speed up booting? When had you last defragmented the hard drive?
 
Reinstalling XP tends to defrag the hard drive and does create a fresh pagefile.sys with no surprises in it. This is my first guess. It is possible that the pagefile.sys contained something that didn't check out with the new processor or that some scratch file Windows may use as a shortcut registered an inconsistency.
 
Some Anti-virus programs act through registry commands at the level of booting. It is possible that the change in processor was perceived as viral like but registered as a Stop error. Second guess.

Only in an AMD system would you see this.

You might try manually doing the voltage, i read somewhere that the default for some AMD XP's are too low

I think you may just want to do a format, windows is probably having trouble working with having a new cpu just swapped out

ok when i had previously installed win xp on this system i had no installation problems.. when i installed it this time like i said i had to remove all the accessories and i forgot to mention i removed all but one hard drive and i kept swapping out memory. the harddrive i used was a new drive and had just been formatted and partitioned. the hard drive was an 80 gig and had a 10 gig and a 70 gig partition. do you think that the new xp processor maybe didnt' like the size of this drive? or the way that it was fdisked and formatted? i'm fairly familiar with this computer stuff but i'm still in school and still learning new stuff so any input is always greatly appreciated and to the person who made the dumb comment about only seeing this in amd systems, why don't you take your immature comments and go somewere else, i asked for help not to be criticized about how the processor is always a problem but chipzilla is the greatest thing that ever came out when its not. oh big deal they have more market share right now but amd is getting bigger and bigger everyday so get used to it. i would never go intel and i never let any of my friends go intel they are a monopolizing and pushy company who can't get anywere in the world without beating down the smaller guy and its quite obvious that their scheme to take out competition is not working look how much amd has grown in the past few years.

The recognition of the hard drive and its configuration would be more a function of the bios.

Quote:
The recognition of the hard drive and its configuration would be more a function of the bios.

yeah thats what i figured but its still buggin my why this would do this.

Rule1 and frist rule of all rules when upgrade your system backup what you need frist more so with new MotherBoard and just plain old CPU upgrade always do a clean install when come to Win2000 and WinXP I don't care what MS said Oh it work just fine you should have any problem Gee that funny then why I'am alway get BSOD then??? lier lier pants on fire hehe.

Quote:
Rule1 and frist rule of all rules when upgrade your system backup what you need frist more so with new MotherBoard and just plain old CPU upgrade always do a clean install when come to Win2000 and WinXP I don't care what MS said Oh it work just fine you should have any problem Gee that funny then why I'am alway get BSOD then??? lier lier pants on fire hehe.

i've been sayin i was tryin to do a fresh install cause i had changed cpu's and i was getting some really weird errors.

I looked at some of the tests on the motherboard you are using. One of the peculiarities of the board was it allows the BIOS to read the SPD module on the DDR stick and allow the mainboard to set itself according to what the DDR sticks "tells" it. This feature can be disabled if timings and latency are set in Bios by the user. So, it is possible that the first time you switched processors there was enough difference in speed to throw the timing off. From Mushkin I read "you will basically NOT find 1T spec DDR unless it is a Registered DIMM."
 
Chalk it up as a victory that you got it going. Just try to remember what you did last so you can repeat it.

Maybe you have to set a JUMPER on your motherboard before using the AhtlonXP.
 
On my Asus A7V266-E I need to set a jumper called PALOMINO when I want to use AthlonXP CPUs. Otherwise, the CPU won't work correctly.

Quote:
I looked at some of the tests on the motherboard you are using. One of the peculiarities of the board was it allows the BIOS to read the SPD module on the DDR stick and allow the mainboard to set itself according to what the DDR sticks "tells" it. This feature can be disabled if timings and latency are set in Bios by the user. So, it is possible that the first time you switched processors there was enough difference in speed to throw the timing off. From Mushkin I read "you will basically NOT find 1T spec DDR unless it is a Registered DIMM."

Chalk it up as a victory that you got it going. Just try to remember what you did last so you can repeat it.

i am using registered ddr ram, and manually set the timings in the bios.