I get the following warning just after the BIOS loads, on my Dell
Inspiron 8200:

WARNING: 70 Watt (20v,3.5A) AC adapter detected. System will not be
capable of running in full performance mode without a 90 watt (20V,
4.5A) AC adapter. Press F1 to continue in battery optimized mode, or
F2 to shut down.

However, I do _not_ have a 70 Watt adapter. I have two 90 Watt
adapters. Both are reasonably new (less than 3 months old i am sure it is working properly). There is
no pin damage on either the laptop or the adapters. I also get the same warning when I used a duck station.

I have flash to the previous Bios, turn down the intel speedstep in CMOS, and set the power management in Windows to Max as well but no helpful

would anyone have a idea to fix it

thank in advance

bongby

Helllo there,

got the same message from my latitude d600,
before booting is says; "ac adapter could not be determinded" ,
press F1 to continue, it also turns out the batterie does not
charge at all , so I bought a new one, no results.
I tried an other adapter from a friend , same message, tried
my adapter on his D600, no problems.
We are in big trouble here, and need some help !!

Thnx , AdB

Hi All

Need some help with Dell d600 worked fine for ages now not booting up , If I plug charger into electric socket power light turns green but as soon as I press power button on laptop , charger powers off. Laptop will not power up. tried diffrent chrager same issue my charger on with other laptops . tried removing memory hdd same issues .

Any Tips ?

Thanks
Ed

I have been using D600 for long time. I dont have any problem with it. Maybe you guys fooling around too much?

am just having problems with my inspiron 8200. warning 70 watts detected but am using 90 watts cord

wrong forum. This belongs in the laptop forum.

almost all dell ac adaptors are with single-wire eeprom which contains adapter p/n. this eeptom connected to 3d pin of adapter and goes right into KBC multicontroller(well, almost thru some defence schematics).

something ive seen before here, i have a dell and im using a smaller replacement power supply without problems.the pc requires a p-a6 and im using a p-a2.. 1.5 amp difference on the smaller side, but what ive knowticed with these lappies... when its plugged in, the adapters end( thats connected to lappy) seems to be loose a bit, im sure with lots of abuse, bumping and tugging would make it looser, i think actually it could be the power connector sauder joints on the motherboard that could be loose and slightly corroded thus the lappy only getting 1/2 or 3/4 of its power, try charging the battery on a friends exact same pc< MUST be exact match laptop> if possible, and try it with that if its ok.. i would consider looking into that by checking for looseness where it plugs into the laptop then go from there... it may provide a clue... never know...ooh and just for sakes end, grab a tester and check the wall socket... (110v min and 125v max <north america>)

I had a similar issue with an 8200 I used to own. Turns out the onboard power inverter had a fault in it, that would cause it to not recognize the 90W adapter. Two adapters and a lot of less hair later, I realized when I ran other tests that the laptop was running fine and it was the fault in the power inverter.

Hello and happy new year,

i have a problem, my dell have a same problem with 70Watt AC Adapter Detected.
Please can everone explain me, how can fixe it myself please. I have already changed my dc adapter, but he have no effect and my batteries was not load :-(


Thank in advane
Nothinkinq

2 all user, who receive this message. dell PSU's have the data pin(it's the middle thin pin). PSU has eeprom memory which located inside and transfer data about PSU to laptop. so, if you receive this message - it means, that eeprom is unavailable or data is corrupted in it. or you just loose the contact with middle pin. the solution is only one: replace PSU. but if you receive the same message after replacing - this is bad motherboard(KBC may be damaged or data line from PSU's data pin to KBC may be corrupt).

Hello Lemo, thank for help. I dont understand, what do you mean with PSU. Is that the DC Charger? I have already change that, but no effect. What means KBC?

Thanks in Advance Nothinkinq

PSU - Power Supply Unit. yes, it has eeprom inside. if your laptop won't recognize this charger, then try to update BIOS(there's small hope, that in your case, we have just some minor errors in KBC firmware). after updating the BIOS check adaptor compatibility(btw, is it original dell PSU?) or some error messages connected with adaptor. if the problem persists - this is motherboard faulty(i can propose the charging PWM controller faulty(max1908, or max8731 or something like this, i don't remember exactly))
KBC(we call it KBC multicontroller) is the main low-level power\security\charging battery controller. it has firmware and it recognizes all dell's PSU's(via single-wire bus).

Lots of Dell info here, including Parts\Warranty and free Chat etc
http://www.techspot.com/vb/topic100658.html

Hello Lamo,

thanks for support. I will try this way. I Buying KBC controller, when i get this item, than i will give feedback again :-)

@kimsland
thank for link

Thanks in Advance Nothinkinq

I mess around with laptops so you may be able to decipher what all this means ..I had 3 Dell d600 and one 600m..I had two dell PA10 adapters.On every laptop with each adapter I would get a warning message at startup saying does not recognise ac adapter and although it would work on ac it wouldnt power up the battery. After hair pulling I bought a new PA12 adapter ..result ..no warning messages and charged as normal. The PA10 and PA12 are listed as compatible for these models so go figure. Maybe both my PA10s are screwed ..anyway there you have it

Hello Friends, i have received my item, its a DC Charger Board into the Board. After replaced its no effect, i have same error message :-(

Have anyone more idea?

May be get solution when i choose and try with stronger adapter, but is it comptaible PA12 Adapter for Dells Inspirion 8200 Serlies?

Thanks in advance
Nothinkinq

Hello!

I do also have this problem with my old Latitude C840.

I was wondering if anyone have any news about this issue?

It seems that the CPU goes slower due to this problem, but that can be helped by removing all batteries.
Also I sometimes get time and date reset. Is this due to me not having any battery installed? Or is my CMOS battery dead?

Best regards from Magnus

Hello all, I'm new here, and need assistance, I have NO technical training or background at all so please be gentle! LoL! Ok so I have a Dell Inspirion 1150, and it's shutting down on me, after it shuts down I try to turn it back on and the battery light comes on as if it's charging, but it's not, when I disconnect the power supply it's dead. I tried buying a new power supply, but it's not working or charging. Is there any advice someone can give me?...i WAS able to get through the boot / start up once, but like 10 minutes in...it shut down on me and I haven't been able to bring it back up yet....I decided to try to let it charge overnight, and I'm hoping it works...my next thought is to change the battery, but that's about as far as I'll be able to take it on my own...can ANYONE help?...

Sounds like the Processor is not cooling. Try cleaning the fans, heatsinks and airways. As well as, possibly re-seating the CPU with new thermal compound.