got new motherboard installed but comp keeps resetting!!!

got a new mobo for my comp. installed it, but didnt reinstall windows yet. it will load to desktop then reset. is this because of the os not configured for new mobo? is it necessary to reinstall windows? ive done this before with other comps and changing out mobo and never had probs using the os that was already on the hard drive.

 

No need for double posting man.

Try booting up in safe mode. See if the same thing happens, if so, you might have a heating problem. I guess you kept the same processor too?
Usually if windows notices a big hardware change it will ask you to re-activate windows, but I've never heard of windows going all the way to the desktop and then restarting.

 

sorry for the double post. my 1st post didn't show up so i didnt think it got posted.

 

yes same processor and i dont think is a overheating problem since its less than 5 minutes of run time. its a abit kw7 mobo and an atlon xp 1700+ cpu

 

Have to tried booting up in safe made?

 

yes it would just reset after hitting enter on safemode, but it would boot wjhen i hit the good last know configuration, but when it got in windows it froze up 10 min later after it installed all the mobo hardware, usb ports, lan sound ect.

 

what is a good safe operating temp. i checked it was at 46 deg celcius after 15 min or so.

 

brand new mobo and thermaltake 430 watt psu. hasnt reset in bios yet...

 

xp professional. chipsets are not the same. old mobo is an epox ep-8kha+ it has a vt8233 chipset and new mobo is a abit kw7 with a vt8237 chipset. im not sure of the chipset with the heatsink.

it hasnt reset in bios yet... temp is 47 deg c.

 

47C in BIOS is pretty hot. Once windows starts to run it's gonna heat up alot. This could easily be your problem. Open the side of your case an get some air blowing in there. See if it drops your temp.

 

got it to load to desktop, loaded all the mobo drivers ran for 15 mins or so. then once again reset. cpu temp was 43c. when it resets and gets to the 1st boot screen where it ask to enter bios or not it displays my primary slave maxtor hd as laxtr (well its mispelled) . i installed another hd with xp already installed and had no problems from it....

 

there is an update, but i dont think it wii sta running long enuff to install it. also the reason i got a new mobo and power supply is because my old power supply shorted out and melted the connector to the mobo. could this have done somthing to the hd, memory and or the cpu? i can give info on which pins on the psu chorted out if would help.

 

i would try to reinstall windows but i cannot find my disk anywhere... a co worker is going to let me use his tomorrow if he finds his.

also if i do reinsrtall win xp will i got to reformat my 300 gig hd (primary slave) i dont want to do that and lose the data on it.

 

ok did it, rebooted and about 10 minutes later it reset...

btw, thanks for all the help and input. its greatly appreciated.

bout the only thing i can try is reinstalling windows. when i do will it recongnize my 300 gig maxtor hd w/o having to reformat and install it?