Blank Screen/Lockup on MSI EX460

Hi guys!

I'm using an MSI EX460 laptop for 18months now and I'm having this curious problem on my system.

A few months ago my computer won't turn on with just the battery. In 19 out of 20 tries, the computer powers on but nothing on the screeen. HDD and fan are both spinning but the HD indicator light is just constantly dim (instead of the usual bright-blinking).

at first i just thought i have a dead battery so i just used AC all the time. but now this problem started happening as well while just on AC. sometimes you will get on the desktop but then it goes blank again. however, once you started using the system for 5mins, you can use it for the whole day with no problem at all.

i have also noticed that this only happens when the laptop is not used for a long time (like in the morning). if you shut it down for 30mins and turn it again (the laptop still warm), no problem at all. i've tried it several times and it happens all the time.

there are other users who had the same prob and replaced the mobo, but it's such a big cost and i don't think it's really that severe. im actually guessing that this may be some loose solder contacts on vga chip, much like the issues on the HP DV2000 series. could this be the same issue?

anyway guys, i'd just like you opinions on possible ways i can fix this. thanks in advance!

 

So I assume the computer remains running but the screen just goes out? Have you tried connecting it to an external monitor as well? It's possible that it could just be a bad or loose cable connecting the monitor.

 

i haven't tried an external monitor but i'm quite sure the system totally stopped running. it mostly happens when im starting it up so if it does still run, i would hear the windows welcome tone. i also forgot to mention that i've done OS reinstall twice now.

again, the curious thing about this is it only happens the first 5mins of starting it up while the system is still cool but everything is ok afterwards. anyone has something like this before?

 

I have same trouble also and just waiting any bright ideas without replacing its mobo. I hope it just a matter of a capacitor or loose contact maybe but still can not pinpoint where the trouble is..please help us..