|Firstly, I had chosen my laptop as the gear to be displayed with the subject but it still doesn't show it. It's an HP Pavilion DV7-1135nr.|
Oh man what a nightmare. I took a few pieces of my computer off in order to blow out and dust or sand there may be in there. Just precautionary measures (thought to be preventative maintenance) since I’m currently on my first deployment to Afghanistan and I didn’t know what type of internal beating my lap top might be taking. Turns out there was no sand and only a little bit of dust from routine use over a year and a half. All I removed was the hard drive, keyboard, speakers and power button panel. I was grounded for the whole thing, and as soon as I turned my computer back on there were problems, however I know everything was replaced correctly.
Firstly, I have a HP Pavilion DV7-1135nr with Windows 7 Ultimate, 17 inch monitor, 4 GB of RAM, AMD Turion X2 64 bit processor and a 250 GB HDD. I don’t know what other information may be pertinent, however I should be able to answer any questions you have for me.
Initially for about 3 minutes, my computer wouldn’t even power up (don’t know why or what could have affected that). It was plugged in and the battery was in and charged. A friend of mine said that’s normal for some reason. Anyhow, I walked away came back and it started. (I sighed in relief).
I was on the computer just typin’ along and bam, it froze. It had been like 15 minutes or so. (My computer hadn’t frozen in the year and a half I’ve owned it) I turn it back on, a little distraught and it freezes again after like 5 minutes. I turn it back on, stubbornly, and it doesn’t get passed loading windows. I’m thinking “I jacked something up” (which I did) Next time I try to start it it barely makes it to Windows, and the screen flickers up and down (that has only happened a few times). Next time I start it, I just get a black screen with a cursor then it freezes up. If I let the lap top sit for 24 hours it can be on for anywhere between 30 minutes to an 1h 30 minutes. It’ll then freeze up and I’ll go through the cycle described above. Considering this started happening about 2 weeks ago – I don’t even try to use it after it freezes the first time. My buddy and I have attempted to troubleshoot and fix the problem, repeatedly.
I don’t know too much about computer hardware but I knew a little bit which I figured would help me trouble shoot. I fix electronics so I wasn’t too worried about taking anything apart for troubleshooting purposes. I quickly suspected a heating control problem because of the “cycle” and how the computer would freeze quicker and quicker after restart as if maybe the processor was getting too damn hot to run. I figured heat sink or fan. I detached the heat sink and reattached it after cleaning the compound off the processor and putting more.. that didn’t work. Then I suspected the fan wasn’t working but it was. I don’t think the processor is overheating despite AMDs supposedly having a reputation for overheating (like I said I don’t know much so if I’m wrong, oops). Anyway, after that didn’t work.. the next time it froze, I was feeling back behind the fan to see if it was hot, and it was blowing cold air (I don’t know why I didn’t do this to start). So then I figured it can’t be the processor getting to hot, it’s not even hot back there. I had the little processor meter on my desktop and it was barely being used last time it froze.
Next we took out the ram, and tested each one individually on the lap top. It froze with both and a different 2gb stick. I was skeptical about the RAM in the first place since I hadn’t even come close to touching it. So then I was like maybe it’s the hard drive. So I installed a new HDD only 80 gigs but it’s all I had and I just installed W7 on there and the same thing happened. I ended up formatting my 250 anyway, but I definitely don’t think that’s the problem. I unplugged the bios battery from the motherboard tried that – I’m still freezing. So I completely took everything apart, I unplugged all the USBs from the MOBO, the audio card, all the batteries, the power, the fan pretty much everything, then I put it all back together. I’m STILL freezing. I’m kinda worried I have a problem with my motherboard or processor because that’s not stuff I can easily replace out here… so I’m hoping there’s something out there you all know that I don’t.
Just to add, I definitely don’t think it’s a software problem considering I put a whole new formatted hd in there and reset the bios. I’m hoping it’s something like maybe a temperature sensor is broken or I changed something that wasn’t supposed to be changed in terms of processor temp control. Any help would be greatly appreciated.
Thanks for taking the time,
I feel like I should mention, I blew out the computer with canned air. I heard air compressors could cause ESD. I also run my computer propped up so air can circulate underneath.