Windows 7 - GTX 9800 very big problem

hello

i have searched and searched for a solution to my problem , i find one and then it shows up again
the problem :
When i play ANY kind of game everything freezes , and this happens very frequently
the only solution is to restart using the button.
after i press the button the first screen that appear is the type of my motherboard P5K
the screen is not clear , on some places there are missplaced squares , booting starts .
nothing is clear , everything has missplaced squares
when windows logo appears there are 3 vertical lines going from top to bottom , usually there are 3 groups of these lines ( 1 group = 3 lines next to each other with small space between ) ... after the windows logo , black screen and no welcome message .. if i wait long enough a blue screen appears saying "dumping physical memory on disk" and then goes restart

this has been happening the day i installed Windows 7 on my PC , i had XP before that and it worked PERFECTLY

i have :
intel Core 2 Duo CPU E4600 2.4GHz
2gb RAM
Win 7 32bit
Nvidia GTX 9800 512 mb Driver version 260.99
RS-460-PCAP-A3 Power Supply 460W
Asus P5K motherboard
i do now know how to check what kind of fan i have attached
i am using SensorsView to track tepm and fan speed
it says Core0: 29c
Core1: 29 c
GPU: a 64 to 68c on start of PC and normal use ( no use of programs who take a lot of memory )
AUX: 40c
there was a HDD temp but now its gone after last attempt to successfully boot PC
CPU fan speed is around 3326 RPM

also there is : VCoreA 1.13V
+3.3V 3.31V
+12V 11.40V


PLEASE HELP .. i am going nuts here , hoping MY PC wont freeze , that i wont have to hope for some sort of miracle for successful boot -.-
if any other information is needed , please write and i will try find

NOTE : when i try safe mode it boots up but there are those blue lines in the background i wrote about in start of the post


i hope the lenght of the post wont scare you and you will read everything

hi and welcome to the forums
i would try and reinstall windows again with all these problems would seem to be the best answer for you check your system specs again and see windows 7 requirements here
Windows 7 system requirements - Microsoft Windows
blue screens are a bad sign and windows is shutting you down to stop any damage to the pc.

also take time to read this from Microsoft Upgrading from Windows XP to Windows 7
Upgrading from Windows XP to Windows 7 - Help & How-to - Microsoft Windows

is there some other option instead of reinstalling .. i plan on leaving format and windows install as last resort

Update your drivers in safe mode


This usually indicates a bad driver install or a overheating/faulty GPU

+1 for yowanvista's suggestion

just so i dont screw up this is what i do right :

restart , F8 , safe mode , driver manager , and then select each driver installed and click Update Driver

right ?

If you are getting anykind of corruption during boot or in safe mode then you have a hardware problem. It isn't a driver issue because there are no drivers loaded during boot.

I would re-seat the card, check it is in the first (blue) pci-e slot. check the 2 x 6 pin pci-e power cables from the PSU to the end of the card are properly inserted. It may even be that your PSU is failing. Over time they weaken and 460W is at the minimum end for a 9800.

ty everyone for the helpful suggestions but i have found an forum thread saying that the motherboard is the problem
the P5K series are very sensitive to bending , not support windows 7 , cant do this , cant do that ... no more asus motherboards for me .. this is the 2nd one i am going to replace , too bad it wont be free -.-
i will try format as last resort .. if that dont help im getting some other motherboard , +2gb ram , better PSU and maybe water cooling , depends on my cash supply

tnx again