Upgrading power adapter from 65W to 90W = "too low for this computer" ???

[CKDewey]

After several years of use the 65W adapter that came with my nx6320 started to fail frequently, so I ordered a 90W replacement. I never believed the 65W was adequate for this notebook since it has always run so hot, I think I could fry an egg on it. That's why I decided to replace it with a 90W.

The only thing I have plugged into the notebook is a tiny Belkin USB Bluetooth adapter.

I was happy to receive my 90W adapter today, but when I plugged it in, I get a pop-up HP message stating that the "smart" adapter power is "too low for this computer." The adapter model number is 304020-001.

The 65W adapter output is 3.5 amp; the 90W puts out 4.7 amp. I feel pretty strongly that 4.7 is greater than 3.5.

I tried shutting down the computer and removing/replacing the battery to no avail. I also checked to see if there were any updates for the HP software for my OS (Windows XP) but the HP updater claims there are no new updates.

The notebook knows the adpater is connected, because I get the pop-up message every time I unplug/re-plug it. What could be the problem?

Thanks,

Tom

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[erico]

If you plug in the adapter after removing the battery and then boot the PC into Windows do you still get the message?

[CKDewey]

When I remove the battery, it will not boot at all. Is this power supply DOA? The computer seems to know it is plugged in when Windows is running...

[erico]

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CKDewey wrote:

When I remove the battery, it will not boot at all. Is this power supply DOA? The computer seems to know it is plugged in when Windows is running...

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That sounds as if that could be the case. Is the power adapter an original HP or is it an aftermarket brand?

If your notebook was delivered with a 65 Watt Power adapter the it is recommended that you replace it with an identical power adapter. Don't try to second guess the engineers who designed the notebook.

Best regards,

erico

[CKDewey]

Hi Erico,

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erico wrote:

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CKDewey wrote:

When I remove the battery, it will not boot at all. Is this power supply DOA? The computer seems to know it is plugged in when Windows is running...

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That sounds as if that could be the case. Is the power adapter an original HP or is it an aftermarket brand?

If your notebook was delivered with a 65 Watt Power adapter the it is recommended that you replace it with an identical power adapter. Don't try to second guess the engineers who designed the notebook.

Best regards,

erico

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I believe it is an original power supply; the model number is noted in my original post. I really would like to agree with you about second-guessing the engineers, but I have seen too many poorly designed systems, including one in particular from HP.

At my last job, our CTO was an HP fanatic, and owned the largest and most powerful HP notebook at the time. I helped him to order a docking station for it based upon the HP compatibility list. When the docking station was connected, he encountered numerous strange power-related problems, and especially had problems with USB devices connected to the docking station ports.

It turned out after a bit of experimentation that the power supply that came with the docking station was inadequate to power the set-up, and using a larger supply completely resolved the issue.

However in my case it does appear this might be a dead or counterfeit supply. I will test it on my colleague's notebook, since it is identical except that he is running Windows (SP)7. I will update you with my findings. Thanks for your help.

Cheers,

Tom

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