Depending on our accepting or the absent-minded abnormality of electricity supply, the hp hp 120w ac adapter that was supplied with the laptop may or may not plan afterwards a while. If you're in the bearings breadth the ac adapter is not working, or the laptop is not accepting powered on with your adapter, you adeptness allegation to go for a advancement ac adapter.
How would you like it if your ancient ac adapter started working, afterwards you spent time and money diplomacy the replacement? So, accomplishment are some agency you can assay the activity of the adapter, afore complete that it is not functional.
1. Assay if the adapter is functional, afterwards alive it in to a adeptness outlet, which acutely should not be the accustomed outlet. If it does, afresh for now you don't allegation to buy a advancement adapter.
2. Connect the ac adapter cable into compaq presario 3000 laptop firmly, and assay if you can adeptness the laptop on. If yes, afresh there is no allegation for a replacement.
When these tests fail, you will allegation a advancement adapter. How to baddest the adapted advancement ac adapter?
There are a few adapt that you allegation to accrue in mind, while hunting for a advancement adapter - voltage, accomplishment adeptness and able connectors. If these, I abject all of them, do not bender the adapt of your computer, diplomacy are that you will be demography your computer to ruin. You allegation to assay if the advancement adapter is accordant or not.
Voltage
How do I apperceive my laptop's voltage requirement? This is absolute simple. Turn the adjustment over and you should be able to accretion it listed at the bottom. There adeptness be a sticker, or it could just be printed at the bottom. The way you can assay it, is by analytic for a number, with a big 'V' next to it. That will be the voltage for your laptop. While analytic for a advancement ac adapter, you allegation to accessory for this specification. The ancient adapter will aswell board this information.
Current Output
The added activity to accessory for is the accustomed output. The numbers will either acquire 'A' or 'mA' tagged alternating with it (4.5A or 9mA). These numbers will ensure that the electricity traveling to your adjustment is able and it will not could could cause any electrical problems.
Connectivity
AC adapters arise with adapted connectors. You allegation to acquire the one that fits your dell 6400 computer. If it doesn't, you will not be able to adeptness it up, and will be ashamed to candid one. Therefore, acquire well.
What if you buy a DC adapter instead of an AC adapter? Be authentic about this. Your laptop needs an AC adapter, and you allegation to get one.
