Dell Precision M4800 :: Slow Performance Without Proper Power Adapter After BIOS A8 Update?
Sep 19, 2014
I recently updated my Dell m4800 to BIOS A8 with Windows 7 64. I had been using a collection of older power adapters from my previous Dell m4400 without any issues. After the update, wow. A huge performance hit if I do not have the 19.5 volt and 9.23 amp adapter connected.
The m4400 power adapter is 19.5 volt and 6.7 amp. Pretty close right? Not any more.
I do have it connected to a Dell docking station almost all the time. Just checked. They are both 6.7 amp.
What changed in BIOS A8 and what the deal is with the performance? Looks like I need to request a new docking station, but I'm not sure IT will believe my story.
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Apr 1, 2009
I have an HP Compaq nx7400. I've had it for over 3 years now. I've never changed its battery ever since I bought it.
Specs: [url]
Over the past few weeks, I've been having an unusual problem. Whenever I plug the AC adapter to my laptop, the whole laptop performance - from the second I switch it on - is very slow. The moment I pull the AC adapter from the laptop, it instantly operates at a normal and fast speed again!
I figured that it must have been a problem with the AC adapter (it's had its fair share of use - being swung around and dragged to lectures...). So I ordered another one off Ebay. Today, I got the new adapter and when I plugged it in, the laptop only went on AC power. It worked fine - fast as normal. However, it was not charging - just on AC power. I am starting to question if the adapter was really as "genuine" like it was advertised on eBay. But anyway... after about 4 hours with the new adapter on AC power, it stopped recognizing the battery altogether and alerted me with a Critical Battery sign. Of course, a few minutes later, it went dead on me - the laptop switched off. It was as if I removed the AC adapter myself, only I hadn't. Now, I am trying to plug it in again (the new one), to see if it will be able to power up again and it just won't respond at all.
On the other hand, when I put the old AC adapter, the laptop switches on but doesn't charge. Again, it is extremely slow with the adapter on, and fast when I pull the wire out. Only for a minute or so until it dies on me again...
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Nov 15, 2014
I bought an RFB Dell Precision M4800 .... When I used my laptop in the ark. My keyboard hadn't been enlighten.
I tried follow some suggestion as: install Dell Feature Enhancement Pack v2.2.1
But I didn't find "Dell Keyboard Backlight Settings" on control panel as guidance.
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Jan 10, 2015
I have problem with my dell. BIOS shows me unknown adapter and after that do not charge battery.
I tested my adapter with another dell and worked normal. But when i plug another adapter to my dell shows unknown.
Some solution? Like connect some pins on MB together?
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Jan 7, 2015
i Bought a dell precision m4800 it came it windows 8 i updated it and now my wifi switch is not working it does'nt turmn off and now i can't turn the bluetooth on as well, it says that you need to turn on the wireless hardware but it is already on
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Jan 4, 2015
I have a Dell Precision M4800, only a few months old. My docking station is a Dell E-Port Plus II, which came with the computer. Very recently, after an update to Dell Command Power Manager, whenever I dock my laptop to the docking station, Dell Command Power Manager will say 'The power adapter attached to your docking station is not recognized', and my system will run slowly. I have a power cord separate from the docking station that, when I plug in, will charge the laptop just fine. I am using Windows 7. What should I do? Is it the Dell Command Power Manager's failure?
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Nov 30, 2013
Having a strange issue with the Touchpad on my Dell Precision M4800. When I disable it using the Dell software or using the Fn+F5 hotkey, it has a tendency to come back on after a random interval of time. I want it to stay turned off permanently, as I prefer to use the Pointstick exclusively.When using the Fn hotkey, I get a notification onscreen as well as a popup in the system tray saying "Touchpad notification: Your touchpad has been disabled." If I manually disable it through the Dell Pointing Devices software, I get the same effect, but without the notification. In either case, this works great... for awhile.But then the Touchpad inevitably turns back on. I often don't notice until suddenly my mouse cursor is behaving erratically, at which point I try to swipe my finger on the touchpad and sure enough, it's become enabled again.
However after some further experimenting it turns out the "random" aspect of this is not totally random and I can reproduce the issue quite reliably by furiously scanning my finger back and forth across the Touchpad for a few seconds. Inevitably, the touchpad will turn back on, and I will get the notification "Your touchpad has been enabled." No buttons or hotkeys are pressed, all I have to do is move my finger on the touchpad surface rapidly and within seconds of starting to do that, it will re-enable itself. Again, there is also a notification that it has been re-enabled when this happens, so the software is detecting my finger movements somehow, perhaps I am accidentally performing some "magic gesture" that compels it to re-enable the touchpad.
If I don't intentionally try to cause this, it still turns on eventually, but can take a long time, half an hour or more before it becomes enabled again. I assume it's the activity of my palms resting on it that will accidentally turn it on again in the same way as swiping my finger intentionally across the disabled touchpad. It makes no difference whether the Dell Pointing Device software is open or closed and this will happen when any application is open.
All I want is for the touchpad to be truly disabled permanently and not accidentally turn on in the middle of my work. But at the same time I'd prefer to leave the pointing stick enabled, so I can't simply remove the driver. So far I've been using an external mouse and disabling all internal pointing devices, which works ok, but like I said I am fond of the pointing stick, I'd prefer to be able to leave it on with JUST the touchpad disabled.
System specs: Dell Precision M4800 with qHD screen
CPU: Core i7 4800MQ @ 2.70Ghz
Graphics: nVidia Quadro K2100M
OS: Factory-installed Windows 7 Pro 64-bit
Dell Pointing Devices software version v.8.1200.101.134
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Dec 16, 2013
This laptop isn't even one month old.. this is sincerely frustrating as i have alot of important work saved on here...
-When I plug in the charger.. the battery light turns on for a second then the battery light turns back off.
-When I try to turn on the laptop with the charger plugged in.. nothing happens at all. When I try to turn on the laptop with just the battery without being plugged in.. the power button will light up for a second then go back off.
I've tried: taking out the battery and holding down the power light for 1 minute.. waited 30 seconds tried turning it on with the power chord with no prevail. holding Fn and turning it on and nothing
Some signs I've been seeing: only bad signs i've seen was before it just didn't boot anymore.. maybe twice out of the 6 last time i've booted.. as soon as i typed my password to get into windows it would just shut off. i'd jus reboot and it worked fine. when it stopped turning on.. after messing with plugging it in or not (i didn't know if the battery was dead) i was able to make it past the windows sign on screen.. was going to email myself all my work before it suddenly shut off on me again. the battery had maybe 1/3rd life before it died
I might have interchanged battery chargers with another older dell model laptop.. but i think only a few times at most.. it mostly sits at work on a docking station at work. i have a feeling i never did though. from what i've read it seems like the battery chargers are all compatible as long as it's dell.
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Jan 2, 2015
I recently ordered Mushkin Enhanced Blackline 16GB (2 x 8G) 204-Pin DDR3 SO-DIMM DDR3 1600 (PC3 12800) Laptop Memory Model 997067 - Newegg.com to upgrade ram on DELL M4800. When installed it doesn't let the Laptop to boot. Newegg says this is compatible but the product doesn't.I'm sure I installed it properly. By any chance,did I receive a defective product ? or is the product incompatible unlike Newegg's Memory finder suggestion ? Newegg charges $15 restocking fee, so I would like to make sure i'm not doing something wrong before before returning it.
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Nov 19, 2013
I'm a proud user of an M4800, but the constant fan noise bothers me a lot. I ordered it wit win7 but almost directly switched to win 8.1.
What I already discovered: In the event viewer I experienced a lot of MSI error events (every 11 seconds) .
Event filter with query "SELECT * FROM __InstanceOperationEvent WITHIN 10 WHERE (TargetInstance ISA 'Msvm_ExternalEthernetPort') OR (TargetInstance ISA 'Msvm_VmLANEndpoint') OR (TargetInstance ISA 'Msvm_SyntheticEthernetPort') OR (TargetInstance ISA 'Msvm_ComputerSystem') OR (TargetInstance ISA 'Msvm_VLANEndpointSettingData')" could not be reactivated in namespace "//./root/virtualization" because of error 0x80041010.
Events cannot be delivered through this filter until the problem is corrected. If I stop the Intel(R) PROSet Monitoring Service these events stop, but I wonder if the performance of network devices is not affected negatively:
The Intel(R) PROSet Monitoring Service actively monitors changes to the system and updates affected network devices to keep them running in optimal condition. Stopping this service may negatively affect the performance of the network devices on the system.
Nevertheless after this action CPU usage has dropped, but still too much fan noise while the system does nothing ;o(
I contacted support and they adviced me to reinstall with win7, but that is no option for me for the moment.
My power options are set to 'Quiet (Reduced Fan Levels)'
In the BIOS vA03 I could not find an option to lower settings there. and all latest drivers are downloaded and installed.
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Dec 31, 2014
I have a Precision M4800 that has its USB ports stop working in two cases so far. First, if I use the card reader at all, it works to access files, but then when I try to eject the card, it shows neither an error nor the "safe to remove" message. the card stays in the list of drives even after it's unplugged. If another USB drive is plugged in after this, it isn't recognized.
The second case is after using an external USB 3.0 drive for a while, it can stop working. The drive shows up in the list of drives, but all the directories appear empty. Unplugging doesn't remove the drive, and new drives aren't recognized. Once this happens, shutting down the machine crashes after a few minutes with DRIVER_POWER_STATE_FAILURE in either USBSTOR.sys or O2FJ2w7x64.sys. Could this be a hardware problem? It seems like the USB controller is locking up and the other drivers are getting blamed.
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Dec 15, 2014
I downloaded the A15 update exe but it is telling me I need to install BIOS update A10 first. there is no A10 listed for my service tag. is that available somewhere and if so after installing that will A15 ask for A11 next or will A15 install correctly?
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Feb 16, 2013
The charger is plugged in and the battery is at 100%. This is a M4500 Precision laptop with Windows 7. I tried flashing bios from safemode, also from Windows PE.
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Sep 15, 2014
I recently re installed my Dell Precision M4800 laptop. In the device manager there is a driver not installed " Broadcom USH" I already searched for it, and there is one : Dell ControlPoint Security Device Driver Pack, but this device is not (yet) supported. Is there a way to fix this? I did not get any recovery cd with my pc, only a few drivers, not this one.
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Nov 18, 2014
Brand New M4800 with docking station - I have ordered two new (large) monitors.In the meantime I have two old squarish VGA monitors. Because I cannot get these set up right.
On a desktop PC, I have good resolution on these old monitors - one connected via VGA-VGA cable plugged into DVI adaptor, the other connected via VGA-DisplayPort.I tried to copy this on the new laptop - I plug in one monitor using the VGA -VGA to the VGA on the back of the laptop or docking station: result is laptop display plus VGA on terrible resolution that I cannot seem to change!
Second monitor - VGA -VGA lead, but nowhere to plug in, so I got the VGA-DisplayPort adaptor and tried plugging it into the laptop's DisplayPort socket (not on docking station) - it "sees" it, but then, in display settings software, it crashes.
WHAT I NEED:
(a) Laptop lid closed, two VGA monitors at decent resolution - OR -
(b) 3 monitors: laptop display plus two TGA monitors at decent resolution.
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Nov 18, 2014
I own a Dell Precision M4800 Workstation running Windows 8.1 64-bit and the problem is that when I type text, no matter where (address bar, Office, iTunes, etc), and go to move my cursor immediately after, it takes about 3-4 seconds of me swiping on the touchpad to get it to move.
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May 3, 2014
I have a Dell Precision M4800 laptop with windows 7 64bit. The backlight keyboard goes off if there is no activity for 10 seconds. I'm wondering if there is a way to change this so that it stays on even if there is no typing? (I have no option to change this in the Windows Mobility Center).
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Jan 11, 2015
What is going on with updating the Bios with Dell laptops? I have a Dell M4500 precision laptop. I'm running Windows 7 pro 64 bit an I7 quad processor and 8 gigs of memory. I can't update the bios past V 07. When I looked through the support posts I found people asking the same question and when I did a search I found over 300.000 hits for the same problem many Dell laptops. What I have NOT found is Dell addressing the problem. Is it the update engine it's self or a problem with the computers? I installed all the patches and all the updates for my computer except the Bios.
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Nov 3, 2007
I've recently upgraded to a Quadro 2500m in my 9400. Sometimes after playing games for awhile it will freeze up for a second and then get really slow (sometimes staircase like lines will appear on the monitor). I doubt the 2500m is broken since it came in a sealed Dell box and my temps aren't too high, so I'm suspecting that the 130W adapter that I got off of eBay is not really up to it. I noticed that sometimes when it boots up it cannot recognize the adapter (Press F1 to continue, F2 for setup etc...) but other times it recognizes it as the 130W adapter fine.
I also noticed that that PA-13 that I have was made in 2004...isn't that way before any of the Inspiron 9400s came out?
So I'm wondering if anyone knows where to get a reputable 130/150W adapter and/or what the part numbers are that people have been using successfully.
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Nov 11, 2014
I just update my aspire 4745 BIOS version from 1.04 to 1.23. After that it making a big problem. If i plug in AC adapter it getting shut down. But if i turn on it without AC supply, it works perfectly. But if i try to turn on laptop after plagged AC supply, it not response anything,
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Nov 13, 2014
I just update my aspire 4745 BIOS version from 1.04 to 1.23. After that it making a big problem. If i plug in AC adapter it geting shut down. But if i turn on it without AC supply, it works perfectly. But if i try to turn on laptop after plagged AC supply, it not respons anything,
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Jan 3, 2009
firstly i thought may be antivirus problm but i uninstall that one.....soooo now again same problm........after 1-2 hours
when i click on the "show hidden icons" in taskbar then the taskbar icon display is veeeery very slow...and overall performance is much much much slow .....
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Jan 2, 2009
Does anyone have experience with very slow performance on battery power with the Dell XPS M1730?
The problem I am having is the following:
AC plugged in - everything works fine.
AC unplugged (on battery power) - the system is very slow. Watching basic video or a DVD is painfully slow, and video is choppy with skipped frames.
I have been working with Dell, and have updated all video drivers, Bios, tried different power settings (including high performance), and it has made no difference.
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Apr 25, 2010
so just what the title says,
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Nov 9, 2009
I have a Dell Inspiron 1520 and my friend has a Latitude D820.
Tonight she accidentally plugged my power adapter into her laptop. A few hours later, she noticed that her laptop indicated that it wasn't plugged in, and that's when we realized that she had accidentally used my adapter instead of hers.
Now my adapter doesn't work at all. We've tried the adapter with both our laptops with different outlets with the same problem, so we know it's the adapter. The green light also doesn't come on when it's plugged in anymore.
Did plugging my adapter into her laptop somehow screw up my adapter, or could this just be a coincidence? Is there any way to fix the adapter or at least figure out what the problem is? And if I have to purchase a new adapter, do the universal ones they sell at retail electronics stores work OK? I would order one from Dell but I'm working on a project now and I don't have time to wait for it to ship.
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Feb 23, 2009
I executed the performance index and everything was over 7.0 but the Hard Drive was 3.0, I have installed the Intel Chipset and SATA drivers, what else I should do ?, in Vista x64 I got around 6.0 for the disk,
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Aug 23, 2014
I've recently purchased an Inspiron 15 5000 series and have noticed that performance is unusually slow for the specs, especially since coming from an Asus G73JH that was about 4 years old.
I've noticed that in the Task Manager on Windows 8, that CPU usage never goes above 30% and although the CPU is listed as an i7-4510u @ 2.00ghz, the Speed on the Task Manager page generally sits at 0.75ghz and never goes above 0.79ghz (generally when it goes above 0.75ghz, it for a brief moment).
I've been Googling this problem for a little while now and the only person I've found with a successful solution to this problem was on a desktop and had to replace their CMOS battery. Considering I'm on a laptop, I'd imagine this would void my warranty somewhat ....
I've run the Dell Support program and all the tests pass. I've also installed all the drivers from the Dell site (including the BIOS update) and all my Windows Updates are up to date.
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Oct 29, 2014
My brand new Hp-pavilion p001tx laptop is 5 days only its performance is slow as compared to system confifuration. From my first use it is taking time for any task. improve my system performance.
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Mar 17, 2014
I have a lenovo z510 and i have one issue... when is plugged, it's very fast. when i unplug, everything is laggy. even when i scroll down on my facebook page, is very laggy. if i plug it in, it's very smooth and works perfect. I don't wanna mention if i wanna play assasins creed without being plugged in... is very laggy. I'm running windows 8.1 and all drivers are downloaded from lenovo website driver support... I've tried to change the profile.
On battery mode to run everything on maximum performance... but it doesn't work. same problem. I don't care if the battery runs out faster. i just want it to run fast when is on battery mode.
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Nov 23, 2014
I have a v3 571G laptop core i7 with a geforce 640m video card. Is not the faster video card but can handle advance video games in medium to high. Every time I play any video games, with settings from medium to high, at the beginning the fps are around 34 to 40 but after 10 to 20 min of playing, the fps gets down to 12 to 20 specially when there is explosions and such. Is my laptop video card dying or is something else?
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