Dell :: Laptop MotherBoard Reverse Circuit Problem
Sep 8, 2009
I have a dell vostro 1500 laptop recently my laptop is behaving in a different manner.
When i connect the adapter plug to laptop the light is getting automatically off in the adapter.When i contacted the dell peoplethey said its some reverse short circuit problem.
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May 29, 2010
So last night my laptop was running fine on battery power, but then it was running low, so I plugged in the power cord. Nothing happened. Since the adapter at the laptop end was falling apart and duct-taped anyways, I figured it was just conking out, but then I saw the indicator light on the power brick was off.
With some experimentation, I found that if I moved it to a different outlet, the light would come back on, but if I plugged it into my laptop, the light would die, and I would have to again move it to a different outlet (the same one as first would work fine) to get the indicator light back on. It works in other Dell laptops. Other adapters do the exact same thing.
So I'm guessing there's a problem with my laptop wiring that's causing a short or something. (Apologies for my shallow electrical knowledge.) But it was working last night on battery power. Until the battery died completely this morning, it would power up. So it's not an electrical problem that kills the laptop.
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Nov 14, 2008
Round 1 was the GPU and thanks to that ordeal I made my share of posts in the venerable "Vertical Lines on Reboot & Crash & Vertical Lines" thread.
To insure I wouldn't have to go through a mobo swap again, I also did the infamous Cu Mod - which, btw, worked flawlessly and I still support the concept, regardless of which revision nVidia GPU you may have.
So talk about my astonishment when my 1330 just powered off instantly last night while I was doing some 3D work (*and* charging the battery...). At first I thought it was an OS glitch but after noting that I couldn't power the 1330 back on, I realized I was dealing with another issue.
Round 2: Symptom, diagnosis & prognosis:
>1330 will not power on and the external PS's blue LED is not lit.
>Connecting the 1330's PS (adapter) with the 1330 causes the PS to immediately switch off (fail-safe circuit).
This is easy to determine because the infamous blue LED goes out and stays out until you unplug and replug the adapter to the AC outlet (mains). Reconnecting the 1330 with the PS causes the PS to once again switch off. And so on.
>Hence, my second Mobo replacement is on order... sigh.
There's the slight chance that it's only the so-called "charger Board" which is actually connected to the mobo (see my pics - link in my sig. below) but the last time they replaced my mobo, they replaced the charger board along with it.
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Jan 29, 2015
i have an dell inspirion n5110, the model with processor i3, and 500 gb hdd and last night the laptop was turned off and when i try to turn on return with 3 short beeps. The problem is from audio and usb circuit board and i want to replace it, but i cant find one in my region with the same part number. I found one with part number 2F34T and another one with 4WY5K, both are originally from another N5110.
On my audio/usb circuit boar is wrote:
554IE0200
1G12115B
FDKS1B
M/O: 000018577254
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Jun 23, 2009
my motherboard just crashed on me and I need to get a replacement for it and would like to catch two flies with one hit and upgrade my cpu while I`m at it but the d820 motherboard doesn`t support the better newer ones and i feel the d820 computer i own is still perfect for my needs.
Therefore I was thinking if the d830 motherboard has the same fit as the prior since after some looking into it they look very much alike but it would kinda suck if it didn`t fit.
D830
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D820
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Oct 10, 2009
regarding purchasing a new motherboard for my HP DV6189eu laptop. The original one went dead with no screen and no bips at boot...
I know from some research that is common of that model of gpu (7200go) to die like that. So I am heading towards buying a motherboard with a different graphic chip, like a Intel one.
The original motherboard is spare number 443774-001. My main question is if I have to be careful in buying a new motherboard or just a new one for the same DV6000 series model with AMD socket is enough?
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Aug 28, 2014
My Laptop is a HP Pavilion G6 Â Product number: D5F44PA#ACJ currently i have 8 GB RAM i want to upgrade to 16GB but cant find laptop motherboard specs.
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Dec 18, 2008
I had buyers remorse so I canceled my order. Now I have canceled order remorse LOL.
Is it possible for Dell to reopen a canceled order?
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Dec 14, 2009
One of my mates has a dead M1330. I told him about the "oven" trick but his wife might hurt the both of us. It is however possible to replace the motherboard with the integrated X3100 motherboard correct?
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Apr 22, 2010
if anyone has ever put any effort into removing all the crapware from the repair DVD's, to attempt to make their own fresh start?
I have started investigating the DVD's, but it would be quicker if someone had already attempted this and has information.
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Jun 5, 2014
I have a Yoga 2 Pro. I pressed the Fn and the +(plus) key to increase some text size. How do I reverse this?
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Oct 4, 2007
I have xps gen 2 with a faulty video card and i was wondring if its possible to replace the motherboard with M1710 motherboard so i can fit my 7900 gs video card in it and put all the other hardware parts for the xps gen2 motherboard to the M1710 motherboard in the XPS Gen2 palmrest ... so can u please give me some hints if its possible to do it or not,so basiclly its replacing a motherboard and putting all the old part in the new 1 ..
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Feb 1, 2014
I recently purchased a Thinkpad T440.
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As a finance person I need to use the F1, F2, ....., F12 keys on a regular basis. My issue is that I need to always use FN+F1, FN+F2, ....., FN+F12 to work, which is not the most convenient thing to do.
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Is there any way to switch these two? Going in the BIOS offers me only the opportunity to switch between Ctrl and Fn.
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Jul 25, 2010
The function keys on my keyboards are working in the opposite manner. Whenever I press any of the keys from F1 to F12 they perform the multimedia actions or their enhanced action. For example, if I press the F2 key the brightness of my laptop screen would lower. It should not work like this. I should be pressing Fn+F2 for the brightness of my screen to lower. The problem here is that I can't use Alt+F4 to close windows because its reversed, I instead have to press Alf+Fn+F4.
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I have already search for an answer online and I can only find that NumLock is supposed to be locked. But, it's a laptop - I have no such key.
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Oct 24, 2013
How can you do it? I find 'natural' scrolling extremely irritating.
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Feb 24, 2013
I recently purchased an Ideapad P400, and I have noticed that the default for  the keys where  F1 and F2, etc. usually are, are now the mute and volume buttons.  To access the F1, F2....F12 keys, you now have to press Fn + your desired F key. Â
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While I understand many people probably find this useful, I play several games where these keys are essential, and it makes playing the games nearly impossible to play if you have to hold down the Fn key in addition to the desired F key. Â So my question is, is it possible to reverse the Function keys? Â I would much rather press Fn + F1 to mute than have to press press Fn + F1 to access F1.
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Oct 21, 2014
After replacing the fan, I have a power up issue with the laptop. Basically, the laptop will only power on with the power cable disconnected at the motherboard. It was by mistake that after the fan was replaced and everything was put back together, that I noticed that the battery was not charging.
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I then reopened the machine and reconnected the power cable to the motherboard and nothing - no power.
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When plugging in the power source with the battery in place, the LED adjacent to the power socket lights up WHITE then stays ORANGE and will not power up. No other lights, no fan noise, nothing.
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If I remove the battery, the LED adjacent to the power socket lights up WHITE and stays white however will not power up either. Same agin, no other LEDs, not fan noise, nothing.
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I have now opened the machine back up and disconnected the power from the motherboard. Put it all back together and the laptop powers up as normal with the battery and it works fine. (Well until the battery runs out anyway).
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Jul 17, 2009
Dell came and replaced my motherboard the other day, I was wondering if this also means that I got my GPU replaced?
I was told that my GPU was part of my motherboard by a friend.
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Jul 8, 2009
does anyone have a burnt motherboard for a m1730 that they would either donate or sell very cheaply i am in need of some connectors and i dont wanna buy a good mobo on ebay for 150+ just to scrap it
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Jan 15, 2008
i'm having trouble with my XPS m170.
It has:
Pentium M 760 2Ghz
1Gb Ram
60Gb HDD
Geforce Go 7800GTX 256mb
17" WUXGA
Windows Media Center 2005
I was playing CS:S, and all of a sudden i was getting artifacts on the display. Than the computer froze up and i had to power the laptop down manually.
I was able to restart the computer in safe mode a couple times.
But wow when i try to restart the computer, i'm getting artifacts on the Dell Splash screen. And then it would freeze up.
What do you think the issue is? At first i was thinking the GPU is the problem. But now i'm beginning to think its the motherboards.
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Sep 6, 2007
I have recently put an M1710 LCD screen cover on my I9400, and the palmrest with the XPS logo in it.
I saw while I had my system apart my motherboard has the solder joints on it for the plugs for the LED's but no plugs for them(has them at the front for the speakers, next to the fans and next to the connection for the monitor).
Is it possible to solder the plugs on, will they work ?? I guess I will need a new BIOS for them ? anyone done it. Would appreciate any info/help. what plugs are they ?
Also is the XPS logo in the touchpad controlable ? mine isn't working at the moment (it's plugged in and was bought second hand but supposidly working ?) anyone know. I know others have done this mod.
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Dec 6, 2007
my motherboard crashed and my harddrive has some important files, is there a way to extract the files from the hard drive with my current pc?
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Feb 9, 2009
After some issues i had with my GPU, Dell agreed to replace both my Heatsink and Motherboard, and i wanted to ask those who have had replacements in the past; has anything changed since july 2008? (when i bought my m1530)
have they improved the heatsink, or even changed it? ( i got the aluminum one, crappy piece of engineering right there )
and im sure the GPU issues are still present, but do they run cooler now ?
im asking this because in July the "defective Nvidia GPUs" were still in the dark, and the news about them was a mere rumor...
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Sep 22, 2009
My E6500 is having the motherboard replaced later today. Is there anything I should be aware of or that I should check out once it's done?
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Sep 25, 2008
I bought a Dell XPS from a friend of mine and the motherboard packed it in, what kind of motherboard is in the XPS 1710. I want to buy one so I can get this machine up and running again.
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Jun 3, 2009
The motherboard on my XPS M1330 needs replacing for the second time. First time it was replaced under warranty, but my system is now out of warranty so I'm going to replace it myself.
I phoned Dell and they're charging €400 for a replacement but I can get it cheaper if I knew the Dell part number. I have the NVIDIA 8400M GS.
From doing some research, here are some part numbers for motherboards for XPS M1330's:
PU073
GM848
CX062
D057F
K984J
How can I check my existing motherboard's part number to ensure I order the correct part?
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Aug 6, 2009
Dell has replaced my SXPS 16s motherboard thrice in order to solve my overheating issues and some usb errors in the diagnostics and each time i have noticed that my motherboard has been downgraded.
The initial one was an A02, replaced by an A02 (new), replaced by an A01 (new), and then replaced by an A00 (refurbed).
All this hassle never solved my problems but introduced a new one - the sound latency issue. I just play a song in WMP and start browsing and the sound crackles and pops so badly that I feel like bloody throwing this thing out of the window, although I cant coz its darn expensive
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Sep 4, 2008
Has been soo long since I post anything on this great forum! I appreciate everyone's time here, and thank you all for taking some time to help me diagnose this problem. Anyways here is the problem:
I bought a "broken" Dell M1210 from ebay. The cosmetics of the laptop looks very good: no dents, few scratch marks, and almost no blemishes. It did not came with a hard drive, only an AC adapter.
Currently, I am trying to transfer ownership to me and will be trying to buy warranty for my m1210 once the transfer is complete. My m1210 is a little more then 1 month out of warranty coverage period.
I have completely disassemble the laptop and examine the motherboard, it looks and smells new. Internally, everything is very, very clean. The motherboard model of mine is HN110, the one that has the geforce 7400gs in it.
However, the batter is bad because it holds no power. I have tried on my friend's m1210 and checked it through Dell utilities and it gave a thumbs down.
I cannot confirm if the LCD, speaker, sound card, processor, system fan, heatsink, and camera are fine, or not.
I am able to confirm the ram, wireless card, and the CD drive are perfectly functional. I have yet to test those under performance conditions.
The main problems is:
I am unable to turn on the laptop.
I have tried 5 different adapters: 2 Dell m1210, 1 E1705, 1 E1505, and 1 Targus universal adapter. All of them do not work on the laptop.
When I plugged a Dell adapter into my m1210, the AC adapter shuts off. The green light on the Dell AC Adapter shuts off.
I tried my friend's charged battery to power up my laptop;however, my m1210 still will not power on.
I have not find a way to test the circuit board on my m1210 and my friend is very, very wary of me opening up their laptop. So anything that involves me trying different parts on his laptop will be almost impossible for me to ask for, he is a noob.
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Mar 3, 2009
does a Dell 5150 isporon have a mother board battery.
I have to keep resetting clock and date when starting up, I just had the motherboard replaced.
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Aug 16, 2009
I recently bought the XPS M1330 from a friend and wasn't familiar with the current issues caused by the nVidia GeForce 8400M GS. Lately, I've been looking for a solution to the problem...
I was reading about the Cooper Mod in another thread and it just seems like a temporary fix...
So, I was wondering has anyone tried manually installing the Intel version of the motherboard, since it seems to have no overheating problems. Has anyone tried a different motherboard to fix the overheating?
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