65W power adapter VS 90W adapter

I have a T400 2765, it was shipped with a 90W power adapter, I was recently given a 65W adapter. Is it ok to charge my battery with the 65W?, with my laptop being shippied WITH a 90W? I have a 9 cell batter and a 4 cell battery.
T400
Intel® Core™2 Duo T9400 2.53 GHz__Windows 7 Professional__3GB Memory__160GB, 7200RPM Hard Drive__14.1” WXGA+TFT-CFL__ATI Mobility Radeon™ HD 3470--
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It's perfectly fine to charge the computer using the 65w power. It will most likely run fine using the 65w power as well, but might not be able to give the computer enough power under some circumstances. Also for some Thinkpads like the W510 which is shipped with a 135w power the computer work fine using the 90w power, but the computer will basically be slower. It might take longer to charge as well.
-gan

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13" MacBook Pro w/ 65W power adapter.

Are the 65W power adapters for the 13" MBP sensitive to power fluctuations? Mine is not working at my inlaws (rural area) but seem to work at home in a more urban area.

Every power supply has input power quality tolerances.
If yours works in one location but not another, then the input power is not within those tolerances.
This excerpt from Troubleshooting MagSafe adapters may be applicable:
Identify line noise issues.
Unplug the power adapter from the wall, let it sit for 60 seconds, then plug the adapter back in.
If the adapter works after this 60-second "rest", you most likely have a line noise issue with your power source. You should reset the adapter periodically by repeating this moment of rest. This issue occurs when the AC adapter's "over voltage protection" feature senses ground noise and then turns off the adapter.
Some possible sources of line noise include lights with ballasts, refrigerators, or mini-refrigerators that are on the same electrical circuit as your computer. This behavior may not occur if you plug the power adapter into an uninterruptible power supply (UPS) or plug it into a different circuit.
Unless the adapter continues to exhibit this behavior on a known good outlet, it does not need to be replaced.

Where i can get replacement for my cinema display 65W power adapter?

Hi, who can tell me where i can get replacement for my cinema display 65W power adapter?

If the display uses the Apple Display Connector (ADC)
<http://upload.wikimedia.org/wikipedia/commons/thumb/0/09/AppleDisplayConnector.j pg/800px-AppleDisplayConnector.jpg>
you will need a DVI to ADC adapter.
<http://www.welovemacs.com/mb571zla.html>
They are also available on eBay.
<http://www.ebay.com/itm/Apple-DVI-to-ADC-adapter-A1006-for-Apple-LCD-monitors-Mi nt-Condition-/251073546040?pt=US_Video_Cables_Adapters&hash=item3a75264738#ht_50 0wt_1089>

90w vs. 65w power adapters

We use the T61's and X61's with the port replicators for the T's and the Ultrabases for the X's. Is there any reason or need for the 90w power supplies? Please advse. Thank you.

Hello,
Welcome to the forums.
The difference between the 90W and 65W power adapters is quite simply the power output to the computer based on power consumption by the unit.
The T-series systems with dedicated video cards (NVidia or ATI) require the more powerful 90W power adapters - the 65W PAs will not provide sufficient power required by the dedicated video cards. Thus the 90W power adaper is the only choice for T-series systems with dedicated video cards.
The X-series, on the other hand, use an on-board graphics adapter without dedicated GPU and come with the 65W power supply simply because of the much lower power requirement. The X-series systems (whether docked in the X6 ultrabase or not), unlike the T-series sibblings, may use either the 90W or the 65W power adapters interchangeably.
Hope that helps
Message Edited by icantux on 06-13-2008 03:50 PM

Will a 65w power supply work with the HP Envy 15t (which comes with a 90w)?

I have multiple extra 65w power supplies from previous machines. The pin that plugs in to the machine is different, but there are converters to get the right size pin. If I get that right pin, is it safe to use a 65w power supply with the HP Envy 15t, which came with a 90w supply?
One supply (65w) says the output is 19.5v, 3.34a. Found another extra (90w) says the output is 19.5v, 4.62a.
The one supplied with the Envy says (90w) 19.5v, 4.62a. I'm assuming with a pin converter, I can use the second one above?

Hi,
For the 65W, It will work, BUT check the tip/connector. The only problems: battery charging could take longer time and for high graphics task it may display an error message. For the 90W, again pin/connector is the main concern.
Regards.
BH
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When an iPod is changing, Is its power supplied by the adapter or by the battery?

When an iPod is changing, Is its power supplied by the adapter or by the battery?

The power is always supplied by the battery, just the charger supplies power to the battery faster than the ipod uses it.

Self repair apple cinema display 65W power adaptor?

After a power outage, I have discovered that the 65W power adaptor (A1096 661-3760) driving a 20" apple cinema display is no longer working. A different brick from another display works fine. I was wondering whether I might be able to service this power adaptor myself? Are there online guides for dissembling the adaptor and checking if maybe a fuse has blown?
Thanks for any advice...
Paul

My guess is not even apple bothers to repair something like a power adapter. A google search shows it can be replaced (albeit not cheaply). It's probably dangerous to fiddle with too since you have line voltages to deal with.
You could call a place like Mac-Pro to see what their opinion of repairing it is. They sell that adapter but also repair mac stuff.

Is the 65W power supply killing small laptop hard drives?

Apple is NOT shipping 45W power supply units to my country (Costa Rica) and the authorized resellers are selling 65W power supply units to PowerBook 12" and iBooks owners, saying that older and smaller laptops can use the 65W unit without problems.
In 1 month, 3 of my friends have lost their powerbook 12" hard drives, all of them were using 65W units.... is it possible that the 65W unit is damaging the hard drive?
Apple documents don't mention any kind of problem related to using the wrong power supply, but doesn't say it's ok either.

Well the authorized resellers are the ones you should
take this up with. If they won't listen, call
AppleCare. Computers are particularly sensitive to
power supply variations. Here is one article which
the resellers should read:
http://docs.info.apple.com/article.html?artnum=75448
I actually printed that document and went to the store to show them they were selling the wrong adapter, but they said Apple is no longer sending/selling 45W adapters to them and they said also that Apple gave them a memo saying that 65W adapters cause no troubles to smaller laptops.
As you can see in the article there's no warning about using wrong adapters.
Hard drives shouldn't be affected by power supply
variations, and given the fact the computer only
takes as much power as it needs, you are more likely
to have a problem putting a 45 W adapter in a 65 W
unit than vice versa.
Even so, your friends could have all lucked out and
gotten a single bad batch sent to Costa Rica.
Yeah, this is absolutely possible, but what are the chances that the three laptops using wrong adapters had hard drive problems?...
I basically want to know if this is happening on other countries (the "no 45W adapters" thing) and if also the hard drive problem could be related to the 65W one.
Regardless, what happened to their original adapters?
One guy lost it on a trip to the beach; the cable that goes to the computer was broken on the other two.
Thanks for taking time to write this answer!

The difference between SOAP adapter and WS adapter in PI 7.1

Hello all,
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<SAP:P2 />
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</SAP:Error>
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Best regards
Dirk

Hello Udo,
in Adapter monitoring all adapters are listed and per adapter (here RFC and FILE) all adapter entries from the scenarios are available (sender / receiver comm. channel entries - in green)!
Pipeline URL in SLD Bus. Syst. is fine ( and an IDOC adapter scenario is running successfully) !
I think this is a really tricky one!
Best regards
Dirk

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Hi,
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65W power adapter VS 90W adapter

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