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7 Posts
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164576
June 29th, 2014 23:00
Blue Screen on boot ...problem with display driver ?
I have been using a Dell Inspiron 14R (N4110) laptop since 2010 without any issues.
The Laptop was purchased online from Dell and came with
1) Windows 7 Home Premium 64-bit and
2) AMD Radeon HD 6470M - 1GB display card.
Recently, I had a problem where my laptop just wouldn't boot up, showing the blue screen everytime it tries to boot up. The Blue screen mentions a problem with the atikmpag.sys file which I understand is the driver for the AMD video card.
If I remove/rename the atikmpag.sys and atikmdag.sys files (through safe boot mode) in C:/windows/system32/drivers, the laptop boots up (no blue screen), but obviously doesn't recognize the display card.
After a lot of unsuccessful debugging tries on my own (including trying to upgrade the display drivers etc.)., I reinstalled the OS and the drivers that came with the original kit (just to remove any possibility of an upgrade gone bad). However, I still see the issue.:emotion-6:
Does this mean there is a hardware problem ? or a BIOS issue ?
Thanks,
R.B.
edgarsab
6 Posts
0
August 9th, 2016 21:00
Okay guys, I updated my first post with more information about my progress in resolving this problem. I'm finished here.
ner_b
1 Message
1
September 5th, 2016 23:00
Thanks for the info. I've been searching the net like crazy to fix this problem and have gone through a number of uninstalling, installing drivers but to no avail. Guess I would just have to deal without the amd radeon graphics card since technicians here really charge unreasonably. Hope I could open this myself and check if mine also need some soldering. :) Dell's built-in support center and even their diagnostics did nothing to help in this issue.
edgarsab
6 Posts
0
September 6th, 2016 06:00
Well, at least for my model (N5110) new motherboard costs around 70-80 Eur on eBay. It's of course a challenging price for a 3-4 year old laptop (since used ones costs around 150-200 Eur in my country), but if it is pretty much in a good shape (no other broken parts), it could be worthy. I certainly do not recommend to buy refurbished boards from any country (especially India or China - they usually offer items cheaper, but with the underlying trick "you get what you paid for"), since you never know, how exactly they were "refurbished" - often it could be a poor quality reflow of the same GPU chip, which means the board could last only a month or two.
Short review of N5110:
From the last time, when I posted here, my laptop keeps performing well, without any problems. Personally, except all the mess with that GPU, I like how my N5110 is manufactured - all, most commonly used ports (DC Jack, USB, VGA, LAN, Audio) are placed on two easily replaceable daughterboards, and when some of these ports wear out, you can simply replace the daughterboard, because it costs under 10 Eur. Also the keyboard is pretty cheap if you need to replace it, because of accidental spill (under 10 Eur).
Bad things about N5110 - to change the HDD, you must take a part the whole laptop. No HDD boot priority option in BIOS, if you have two HDDs (secondary in ODD slot), No UEFI support
mohloko
1 Message
0
January 26th, 2017 07:00
I tried uninstalling the amd driver and reinstalling, Igot lastest drivers from amd site. Dell support is bad, the drivers on their website is old dated and they dont give any explanation about this issue.
I still getting blue screen (BSOD) when amd drivers is installed...
KamilZet_
1 Message
0
August 9th, 2017 01:00
@Edgarsab: can you provide more details about what exactly have you done with your AMD chip? I'm planning to "regenerate" mine, as it seems to cause BSOD as well.
edgarsab
6 Posts
0
August 9th, 2017 02:00
I did a couple of edits in my last post, so if you guys are reading my message in your e-mail, be sure to open this forum and read the edited message.
Thanks,
Edgars
edgarsab
6 Posts
0
August 9th, 2017 02:00
Thank you for asking! Just get a cheap thermocouple probe (digital thermometer with wire, which you can attach to the chip for measuring the surface temperature). You can get these online for $5, they're really cheap. Next step - get a tin foil and some cheap soldering flux (I used some Amtech spinoff flux from China which costs around $1-$2. Did the joob good). Smear the flux all around the chip, and try to push it a little under the chip with some plastic guitar pick (from the sides). Apply it also on the other side of the motherboard, where the chip is located. For the heating part, get an ordinary heatgun or borrow a hot air soldering station (which of course is much better, since you can control the airflow and the temperature)
Wrap all board in couple layers of tin foil, but leave the chip uncovered. Then attach the thermocouple to the chip (just smartly place it on the chip surface, and make sure it doesn't move around - you can tape it to the tin foil)
Then do some preheating (I start with 100-120C, then I slowly increase the temperature to 200C) - this process took me 3-5 minutes. Then when it's at 200C, increase the temperature to 240-260C, and heat it for 20-30 seconds. But be careful - do not use the fastest airflow and do not make it hotter than 260C. (melting point for lead free solder is around 217-221 º C, you just need a little more heat, so it can reach the solder balls under it)
If you want to see, if those are solder joints or the chip itself, after the preheating to 120C, just use the max temp, not higher than 140C. If it works afterwards, then the problem is with the chip (since solder really can't melt under this temperature) and not the solder balls.
The main reasons why you need to wrap the board in the tin foil, is to avoid melting plastic components (tin foil doesn't allow the hot airflow to reach these parts, so they doesn't heat up that much) and to avoid desoldering and blowing away some nearby SMD components.
After you're done with the reflow, leave the board wrapped in the foil for 10-20 minutes and do not move it, so it can cool down to a safe temperature.
By all means, DO NOT USE THE OVEN for doing the reflow. Some guys recommend to put the board into the electric oven, and use 250C for couple minutes, but this method is completely disasterous (you will risk melting all the plastic components,on the board). Also DO NOT USE the blowtorch (you really don't want to put 1000C on your chip).
Note: When you'll reach 200C, there will be a lot of smoke and fumes coming from the melted flux (and probably also from the tape, if you used one, to attach the thermocouple), which you really do not want to inhale, so I recommend to at least open a window or do this in a well ventilated room.
Hope this helps.
Edgars
kamalit09
1 Message
0
January 4th, 2018 00:00
I am having the exact same problem with this AMD Readon HD 6470 and Mobile intel hd graphics drivers, So disable the AMD Readon driver but Mobile intel HD graphics is also not proper install and currently my resolution only basic 1024 x 768,
Anyone finding the solution please do the needful........