Brand new Laptop would take about 10 to 15 minutes to get to the BIOS password prompt after being powered down for longer than 30 to 60 minutes. It did not matter if it was a full shut-down, hibernate or sleep. At first trying to start the machine, only the power button was lit with no response from screen or keyboard. Very annoyed. Spent countless hours trying different things (Swapping battery and hard drive with same spec'd machine, updating drivers, removing the CD and micro SD card, minimizing BIOS start options, resetting the BIOS).
Yesterday Dell changed the motherboard on the E6440 and just like that the problem disappeared.
Negative. I've seen a few other machines with this problem. One other tech warrantied a machine and Dell just replaced the motherboard. I have no idea if that actually resolved the problem though.
Thanks for the posts! Sorry to hear about the docking power up trouble! I would like to try and replicate this and hopefully pin down the cause. Could you clarify a few things for me? -
Does the intermittent power up only occur while on dock and using the docks power button?
How many systems have been effected / have you been able to test the systems on multiple docking stations as well?
What peripheral devices are connected to your docks, monitors, keyboards, wireless adapters, etc.?
What wattage AC adapter is being used on the effected systems / have you been able to test multiple?
>> Does the intermittent power up only occur while on dock and using the docks power button?
The dock doesn't appear to be relevant as I have directly observed the issue when a E6440 is not on a dock.
>> How many systems have been effected / have you been able to test the systems on multiple docking
>> stations as well?
Unfortunately I don't have a hard number for affected systems. We have 109 KACE-inventoried E6440s though, and in my own experience I think the number of systems I've seen is at least 10% of them. Again, docking stations don't seem to be part of the problem.
>>What peripheral devices are connected to your docks, monitors, keyboards, wireless adapters, etc.?
On the machines I've directly observed, only the included Dell power adapter and an ethernet cable are connected.
>>What wattage AC adapter is being used on the effected systems / have you been able to test multiple?
I've been using the included adapter (65W, DP/N 06TFFF). Systems installed with docks use the included power adapter for the dock (130W I think).
New to the forum. I would like to be included in this solution if possible. I've encountered three Dell e7240 laptops with docking stations that exhibit similar issuues. The laptops function normally when undocked. However, when docked the monitors will not power up. If I undock the laptop, power it up then dock it, the monitors will power up. I've seen this before on other Dell laptop models and it was a BIOS setting for Port 1 of the docking station. There is no BIOS setting for this on the e7240..
Str1n1
1 Message
1
June 3rd, 2015 01:00
Finally fixed !!!
==================
Brand new Laptop would take about 10 to 15 minutes to get to the BIOS password prompt after being powered down for longer than 30 to 60 minutes.
It did not matter if it was a full shut-down, hibernate or sleep. At first trying to start the machine, only the power button was lit with no response from screen or keyboard. Very annoyed. Spent countless hours trying different things (Swapping battery and hard drive with same spec'd machine, updating drivers, removing the CD and micro SD card, minimizing BIOS start options, resetting the BIOS).
Yesterday Dell changed the motherboard on the E6440 and just like that the problem disappeared.
Hope this helps you.
chongtxtx
1 Message
0
March 19th, 2015 11:00
I am having this same issue and was wondering if you ever found a solution to this?
JTremblay
1 Rookie
•
10 Posts
0
March 19th, 2015 11:00
Negative. I've seen a few other machines with this problem. One other tech warrantied a machine and Dell just replaced the motherboard. I have no idea if that actually resolved the problem though.
DELL-Shawn B
3 Apprentice
•
540 Posts
0
March 20th, 2015 09:00
Hi JTremblay, chongtxtx,
Thanks for the posts! Sorry to hear about the docking power up trouble! I would like to try and replicate this and hopefully pin down the cause. Could you clarify a few things for me? -
Thanks,
JTremblay
1 Rookie
•
10 Posts
0
March 20th, 2015 09:00
>> Does the intermittent power up only occur while on dock and using the docks power button?
The dock doesn't appear to be relevant as I have directly observed the issue when a E6440 is not on a dock.
>> How many systems have been effected / have you been able to test the systems on multiple docking
>> stations as well?
Unfortunately I don't have a hard number for affected systems. We have 109 KACE-inventoried E6440s though, and in my own experience I think the number of systems I've seen is at least 10% of them. Again, docking stations don't seem to be part of the problem.
>>What peripheral devices are connected to your docks, monitors, keyboards, wireless adapters, etc.?
On the machines I've directly observed, only the included Dell power adapter and an ethernet cable are connected.
>>What wattage AC adapter is being used on the effected systems / have you been able to test multiple?
I've been using the included adapter (65W, DP/N 06TFFF). Systems installed with docks use the included power adapter for the dock (130W I think).
sschafer0609
1 Message
0
March 20th, 2015 13:00
New to the forum. I would like to be included in this solution if possible. I've encountered three Dell e7240 laptops with docking stations that exhibit similar issuues. The laptops function normally when undocked. However, when docked the monitors will not power up. If I undock the laptop, power it up then dock it, the monitors will power up. I've seen this before on other Dell laptop models and it was a BIOS setting for Port 1 of the docking station. There is no BIOS setting for this on the e7240..