Dell laptop insufficient power supply warning

I am wondering is there a way to disable warning in Dell Precision M90 when incorrect power supply is used?

At the moment computer doesn't want to boot with power supply below 130W, however as I don't have one, I am using 90W one. And it works great - computer works, battery charges etc. The only problem is, power supply need to be unplugged, otherwise comouter won't boot at all (getting Dell warning about insufficinet power supply).

As i need to use laptop as a desktop replacement (would be plugged in all the time) I would love to disable this Dell warning. Tried to look in Setup, but couldn't find anything.

Any ideas?

Thanks,
danindubAsked:
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PCBONEZCommented:
The best idea would be to get an adapter that has enough watts.
Using one too small will cause it the adapter to overheat then your voltage will go out of spec and that might possibly damage the laptop.
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burrcmCommented:
You are gonna kill it (as suggested more eloquently above, but I like to get straight to the point). Be warned.

Chris B
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danindubAuthor Commented:
It's been running like this for about a year now and so far so good...

I understand there's no way to disable warning or at least bypass it?
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PCBONEZCommented:
No.
It's a safety feature.
It's there for A REASON.
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jamietonerCommented:
I would also suggest getting the correct adapter as the message can not be disabled. The correct adapter can be bought on ebay for $23. Also running on a 90w power supply will degrade performance so the laptop hasn't been running at it's full capacity.
http://cgi.ebay.com/New-Genuine-Dell-130W-AC-Adapter-PA-13-PA-1131-02D_W0QQitemZ120395494232QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item120395494232&_trksid=p3286.c0.m14&_trkparms=72%3A1205|66%3A2|65%3A12|39%3A1|240%3A1318|301%3A1|293%3A1|294%3A50
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PCBONEZCommented:
Q
I am wondering is there a way to disable warning in Dell Precision M90 when incorrect power supply is used?

A
Yes, replace power supply with the correct power supply.
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unyotCommented:
I would highly suggest that you use the equivalent or higher power requirements else it would be a FIRE HAZARD. Just because it was working fine for a few months does not mean it is just fine. Spending money for the right AC adapter is a very good investment.
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PCBONEZCommented:
Four out of four experts recommend you get the correct adapter.
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danindubAuthor Commented:
Ordered new power supply, shame I can't switch it off until the new one arrives...

Also, just FYI, in Dell Inspiron 1545 similar warnings can be disabled in BIOS....

Thanks all.
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