Dell :: M4400 Ethernet Adapter Disconnects When Idle On AC Power
Mar 11, 2009
If I leave my M4400 idle with Windows (Vista Ultimate 32-bit) locked and the screensaver on for any length of time (e.g. 20 minutes), then the network card goes into power-saving mode even while on AC power, reducing the connection speed from 1Gbps to 100Mbps. I can see this because the colour of the LED on the port changes. The reduction in speed causes a brief disconnection from the network. When I unlock Windows, there is another brief disconnection as it reverts to 1Gbps, and this causes instant messaging applications to log out.
If I go to the Link Speed tab on the network card's properties in Device Manager and force it to 1Gbps instead of Auto Negotiation, it warns me that power-saving features will be disabled, but then I don't experience the problem and it never disconnects. "Reduce link speed during battery operation" is unticked, but this should not apply to AC power anyway. I've tried upgrading the driver to 9.50.14.2, A01 (released on 24/02/2009) but the problem still happens.
Does anyone else experience this?
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Dec 8, 2008
My company recently bought 10 M4400 and they work good so far...not laptop freezing etc....but both myself and another guy have had our power adapter die on us.
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Jun 24, 2014
My compaq presario CQ62 laptop's wireless adapter frequently disconnects while I'm online. is there a driver update that will correct this?
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Dec 10, 2014
My internet frequently disconnects from my Aspire S3-951 notebook with Athros AR5BWB225 wireless adapter. The adapter is loaded with driver version 10.0.0.227. Is there a newer driver that will prevent the frequent disconnects?
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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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Nov 10, 2009
Apparently its a common problem on the SXPS 13 where the Ethernet adapter fails to work after the system resumes from sleep. It is caused by the NVIDIA chipset driver.
Can you check if yours is working correctly after the system resumes from Standby or sleep? If so, can you post what OS you are using? Which driver(Win 7 or Dell one)?
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Jul 29, 2014
I just got a W540 running Windows 7 x64 at work. I have an ExpressCard ethernet adapter (A Belkin f5u250), and I'm having trouble getting it working.
I used this card on a W510 running Windows XP for years with no issues. I can still plug it into that laptop and have it work just fine. However, when I plug it into the W540, nothing happens. Windows does nothing. It doesn't act like it's trying to identify hardware, go find drivers, or anything. Nothing shows up or changes in the device manager, either.
I've tried doing the "add legacy hardware" thing in device manager, but I've had no luck with that, either. If I do an autodetect, it doesn't find anything, and if I manually browse to the driver, it then brings me to a list of devices, and the list is empty.
Is there something special I need to do to enable the expresscard slot, or enable plug and play for it, or something?
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Jun 17, 2013
I have three drives: mSSD, HDD, HDD in ultrabay. I think this is taking its toll on my battery. My first HDD is often used since it has my "DownloadsFirefox & uTorrent" folders. However, my second HDD only has music. Is there a way to have it automatically power-off when I don't play music from that drive?
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Nov 19, 2009
Just got my new 1810t delivered today. Mine is the one with the SU4100.
Notice that at idle it goes to 5.5-6w. Great. After anything intensive I do it always drops down to that level. However, when i watch DXVA x264 accelerated video in MPC or WMP, i notice that after quitting my idle power consumption jumps an average of two watts. The only way to get back to normal idle power consumption is by putting the laptop into sleep mode, then waking it back up again.
Watching the same x264 video in VLC which does not support DXVA doesnt result in the increase in idle power consumption.
Watching DXVA accelerated youtube HD content with flash 10.1 doesnt increase power consumption either.
Running the latest (15.16.2.64.1986) video drivers, but the same problem was present on the stock drivers that came with the laptop. Version of those drivers was unknown. Wattage was measured using both batterymon, and batterybar.
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Jan 27, 2013
Our Studio 1749 will retain a solid connection when the power adapter is plugged into the power board along the side of my laptop. I am unsure if the pins residing in the power board are pushed toward each other so as to not retain connection when the adpater in plugged into the laptop.
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Oct 23, 2013
I have just installed an i7 2670Qm on my T420 today.The machine will crash pretty soon after booting up, with the screen having colorful vertical and horizontal lines before it restarts itself and give the memory error beeping pattern (1 beep-pause-3 beeps-3 beeps-pause-1 beep).So then I took out one RAM from the bottom, and the machine appears to work normally again, more or less.
In the OS (Win7 64), The power manager alerts me that the 65w AC adapter is giving not enough power, so the laptop is running on battery. I thought I just need a 90W AC brick so the laptop will work as it should, so I am arranging a 90w one to come in later. But on a second thought, if the battery cannot start the laptop with 8GB of RAM properly.
Is it the CPU or RAM or Mobo or something else? Where should I look?The machine works fine with the previous CPU i3-2310m and 8GB of RAM.The RAM modules I have are 2 x 4GB Samsung 2Rx8 PC3-12800S-11-11-F3.The BIOS version is updated to the latest 1.46.
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Jan 25, 2009
Couple questions - I'm leaning towards an M2400 but prefer the M4400 as long as it can fit in my existing Zero Halliburton briefcase.
The interior dimensions of the case are 16" wide x 11" deep.
Currently, it fits my M70, with the AC adaptor & bluetooth mouse on the right side.
As far as the batteries on the M4400 - will the 9 cell extended battery fit in my existing 11" deep case?
Also, what's the standard AC adaptor for the M4400? Will the 90w adaptors work with the E-Port?
I have a couple extra 90w adaptors for my M70 (D series) that would hopefully work with the M4400 and/or E-Port.
Lastly - I realize there's no S-Video out port on the M4400/E-series.
How would I output video to my (non hdmi) TV? Is there some sort of cable adapter available from Dell that would convert a video signal from the M4400 to either the S-Video input or the yellow video RCA jack on my TV?
Currently I use the Dell S-video to video (yellow) adaptor cable.
User pros & cons on the LED versus LCD screen?
Does the webcam on the LED have a lower resolution than the LCD webcam?
Lastly - who makes the 320GB 7200rpm FFS drive? Hopefully Western Digital.
Is the 500GB 7200rpm drive a FFS drive as well?
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Sep 13, 2009
I just reformatted my Studio XPS 13 and to my knowledge.
I have installed all the necessary drivers........
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Jul 2, 2009
Can I use a 95W Power Supply for my M4400 along with the 130W Supply I would leave at home?.
Its new and nice as #&$*#(### for guys like me who spend an hour to an hour and a half on the metro then a 2-6 block walk into the offfice?.
This is small @
Dimension 75 x 17 x 145 mm ; 2.9 x 0.7 x 5.7 inches....
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Aug 18, 2009
I'm shopping for a spare power supply for my M4400 that need to be able to do full GPU/CPU load for 8 hour a day will the the90W do it or I need to go 130W.
I still have not used the battery so I could deactivate battery charging on the spare PSU
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Apr 2, 2009
The Studio XPS 13 should have a lower power consumption than the m4400 because of the small screen size(13"vs15"), lower power CPU(TDP of 25 vs 35), and a lower power graphics card (9200M vs 770M)...
Notebookcheck reports that the XPS 13 lasts 3hrs20min on idle, no wifi, and min brightness and 1hr10min under full load and max brightness...
In contrast they also report that the m440 will last 4hrs31min and 1hr35min respectively...
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Sep 17, 2009
I mean SCOLDING. To the point you can't hold it on the e6400?
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Nov 24, 2009
I've got a new power adapter which is 65w. When I plugged it a warning message popped up saying Im using a 65w adapter and my system will operate slower and that my battery will take longer to charge.
The part with the battery taking longer to charge I get but does my system will really work slower ?
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May 11, 2010
I really would like to get two of these, since they are less than 1/3 of the price of the adapters I can get in Norway, but I'm a bit suspicious.
The original adapter for my Precision M6500 is 210 watts (which is totally crazy, but I guess the Fire GL card eats most of it), and this is rated at 90w. But will it even work? Here's the eBay auction, it's in Great Britain:
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Apr 16, 2009
I just received my e6400, and it is now charging the battery. The ac power adapter is very very hot, is that normal? Should I ask them to change one for me?
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Mar 16, 2009
how the power adapter of the Studio XPS 13 looks like, because the size of the power brick is essential to me. Although you can buy a separate one but that would be a waste of money.
So my question is, what's the difference between the 65W power adapter and the 95W power adapter? This is because choosing the Geforce 9500GE online would change the power adapter from 65W to 95W.
Why is this anyway? Isn't the 9500GE suppose to save more battery than the stock 9400GS?
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Jun 9, 2009
I was wondering if anyone has tried using the Dell 45W power adapter with their E4300. If so, does it work?
It would be handy to carry the 45W one around instead of the 65W one assuming that it works.
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Oct 3, 2009
My power adapter always makes a noise when I scroll or click using the touch pad...
it's weird. It's just a little crackling, but my old dell didn't do that.
Does anybody have this as well?
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May 5, 2010
Have had my xps 16 for a few weeks. my power adapter is making some strange sounds. It's kind of like a really light fizzy/crackling sound. The best way to describe is that it sounds like a soda/carbonated beverage. Not all the time, just sometimes. I thought it was just random, but I was using it earlier, and noticed it made the sound when I was doing some task on the computer, i.e. scrolling down on the touchpad, or opening a folder, etc....????
Anybody experienced this? It's the 90W adapter, and I was going to call Dell and get the 130w anyway, but does anybody have any thoughts?
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Dec 2, 2009
How do I tell if mine is 130 W or 90 W? I have 2 adapters: the 1st came with my older 1640 and says 90 W on the front, while the newer one that came with my 1645 does not say anything related to W. The part # is WK890 and everything else is about Amps, Voltages, Made in China, etc.
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May 5, 2010
My original power adapter snapped at the plug, and I need to buy a new one. Problem is that I can't find the originals listed on the dell site anymore!
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Apr 8, 2009
so my power brick is on the verge of death.
Now, I was looking at the 65w replacements on eBay and the like, but everything seems to have a round plug now, as opposed to an octagonal one.
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Feb 24, 2009
I was just wondering if anyone has noticed their power adapter getting extremely hot?
I just got the Studio XPS 16 laptop today and I have never seen an adapter get so hot.
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Mar 7, 2010
Iv read a few posts online saying that Dell blocks people from using non dell power adapters on their machines by not letting those adapters charge the battery.
My issue is, I need a new power adapter AND a new battery.
I really don't wanna fork over $130 for a new 6 cell battery, Especially because on the dell site the reviewers themselves had given it a bad review saying the battery usually dies in a year or less.
That and my Budget is about $100 for both battery and adapter.
I need to find a battery that works, and an adapter that will actually charge the battery and keep the notebook charged.
This is basically a question out for Dell Inspiron users that have had this same issue and have had to replace the battery or the charger. If you guys could tell me what has worked for you and what has not, that way I can at least narrow down my options on chargers and batteries.
Id like to find a charger with the same volts as the dell charger has If I can't find a non official charger that works, could you guys at least point me to a less expensive site where I could buy the dell power adapter.
I would much rather just buy a charger and battery outside dell though because their products are by no means high quality and are in fact well overpriced.
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