Having problems with your HP Pavilion Dv3-1075us Notebook ?

When the power button is pressed light flashes and the system is not working

Answers :

Robably itz either minor case of software corruption/improper ground/cpu fan..
or major case of faulty or defective main board/ram/daughter or addon card(s)..

..plz do check the following as in order:..
the Hardware part:..
1)a)in\015\012power on mode, open/unplug the data/vga cable of the monitor\015\012from cabinet..see if raster or 'osd' is appearing on the monitor\015\012screen..if so monitor is ok..else replace the monitor and see..[not\015\012applicable in case of laptop]..
b) in case of laptop try to get\015\012output from external display unit/monitor using vga port..if there's\015\012proper display in there..the problem is probably with either the 'lcd'\015\012or 'ccfl' or 'inverter circuit'..

2) if u hv a graphics card, replace with a standby or onboard and see..[not applicable in case of laptop]..

3) unplug mains supply..pick open/remove the cmos battery..check (above +3v)..resit..

4)see if\015\012the ram(s) is loose/faulty..open clean/remove carbon & or\015\012oxide formed on the teeth with an eraser n resit it..or replace with a\015\012standby n see..

5) a) see if ur hdd is noisy or emitting any 'ticking' noise (like 'tuk tuk' or 'kirr kirr')..
b) or if the system is not supporting either the newly installed device or itz software/driver /firmware
if so, u need either a fresh os installation or ur hdd is likely to b replaced..

6)remove/clean\015\012dust neatly..dust is non-uniform in nature n may cause jam/short\015\012circuitry/excess resistance n many more..resulting an increase in heat..

7)\015\012open the CPU Heat-Sink with fan out of the socket..put some "Heat Sink\015\012Compound" (available in local electronics chip level spare market)\015\012between the cpu/processor and the CPU Heat Sink *** fan..resit/fit it\015\012tightly in position..

8)on main/mother board..see with a debug\015\012card for mb error..may b short..look for defective capacitors(esp\015\012above1000mfd)/mosfets..go through the mb's south bridge n the circuit\015\012lie around atx connector..the crystal clock generator (if cpu isn't\015\012heating up)..

9) [in case of desktop] the smps itself may b\015\012defective/faulty..check the outputs of smps viz. 0v (black~ground); +12v\015\012(yellow); +5v (red, green~ps-on, violet~pg& grey~sb); -12v (blue);\015\012-5v(white); +3.3v(orange)..the 'oscillator and error amplifier ic',\015\012or pwm switching regulator circuit..look for\015\012defective protector-transformer/resistance (esp 4.7k)/mosfet..
check the battery n adapter [main power], in case of laptops..

the Software part:..
1)hv\015\012a licensed and UPDATED antivirus installed (i prefer avg/kaspersky,\015\012remember, without updation a full version antivirus is useless)..

2) download, install n run microsoft kb890830..http://www.microsoft.com/downloads/details.aspx?FamilyId=AD724AE0-E72D-4F54-9AB3-75B8EB148356&displaylang=en..

3) download n run Startup Control Panel..http://download.cnet.com/Startup-Control-Panel/3000-2094_4-10039330.html..'remove all\015\012the unnecessary startup items from here..(if u can't find what to\015\012remove, post me/us in ur comment with all the items listed in each n\015\012every tabs herein)..

4) remove all unnecessary software from add/remove programs..

5) download, install n run 'Advanced System Care Pro'..http://download.cnet.com/Advanced-SystemCare-Pro/3000-2086_4-10399324.html..

6)disable the following:..
a)'Automatically\015\012Restart' right click on\015\012my computer->properties->advanced->startup n\015\012recovery->(un check on the) Automatically Restart;
b)'Error\015\012Reporting' right click on my\015\012computer->properties->advanced->error\015\012reporting->disable error reporting->(uncheck on the) 'but notify\015\012me when critical error occur'..

7) Increase the size of Virtual Memory, Initial: 1440; Maximum: 2880

if u r not a professional, always better to seek advise from ur system admin/vendor....
Repair Help & Product Troubleshooting for HP Pavilion Dv3-1075us Notebook

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