"Power Surge" on Dell 1905FP's Hub Port - Tilted Forum Project Discussion Community

aberkok · 02-12-2006, 03:19 PM

Hey folks. Once again after extensive Googling and TFP searches I come to the computer board defeated...

I just got a Dell 1905FP Monitor which has 4 USB ports built in. Whenever I try to plug in my portable hard-disk, the system tray gives me an error:

(paraphrasing): "Power Surge on Hub Port - click on this message to solve this problem"

When I click on the message, it gives me an oppurtunity to disconnect the device and reset the port. I suspect that the hard-disc needs more power than the monitor's hub port can provide, but it seems like it should be able to power the disc especially when there's nothing else plugged in...

My wireless adapter is plugged in and that works... anyone with a Dell 1905FP ever have this problem? Is there truly a power surge happening or is this just a bogus warning as a result of a bug or something?

cyrnel · 02-12-2006, 04:10 PM

Yes, the drive is drawing too much current. Many notebook drives are right on the edge of the 500mA standard limit of USB. Some ports are generous, others stingy. If it's an unpowered hub built into the monitor, and it's connected to a single port on your computer, you're dealing with multiple disadvantages: Borderline supply, extended wires, hub sapping a few mA for its circuitry.

You could try a two-to-one power connection from your computer to divide the load, or a powered hub at the monitor (boo, I agree), a power brick for the drive, or maybe a newer 2" drive that doesn't need as much oomph.

02-12-2006, 03:19 PM	#1 (permalink)
aberkok “Wrong is right.” Location: toronto	"Power Surge" on Dell 1905FP's Hub Port Hey folks. Once again after extensive Googling and TFP searches I come to the computer board defeated... I just got a Dell 1905FP Monitor which has 4 USB ports built in. Whenever I try to plug in my portable hard-disk, the system tray gives me an error: (paraphrasing): "Power Surge on Hub Port - click on this message to solve this problem" When I click on the message, it gives me an oppurtunity to disconnect the device and reset the port. I suspect that the hard-disc needs more power than the monitor's hub port can provide, but it seems like it should be able to power the disc especially when there's nothing else plugged in... My wireless adapter is plugged in and that works... anyone with a Dell 1905FP ever have this problem? Is there truly a power surge happening or is this just a bogus warning as a result of a bug or something? __________________ !check out my new blog! http://arkanamusic.wordpress.com Warden Gentiles: "It? Perfectly innocent. But I can see how, if our roles were reversed, I might have you beaten with a pillowcase full of batteries."

02-12-2006, 04:10 PM	#2 (permalink)
cyrnel Adequate Location: In my angry-dome.	Yes, the drive is drawing too much current. Many notebook drives are right on the edge of the 500mA standard limit of USB. Some ports are generous, others stingy. If it's an unpowered hub built into the monitor, and it's connected to a single port on your computer, you're dealing with multiple disadvantages: Borderline supply, extended wires, hub sapping a few mA for its circuitry. You could try a two-to-one power connection from your computer to divide the load, or a powered hub at the monitor (boo, I agree), a power brick for the drive, or maybe a newer 2" drive that doesn't need as much oomph. __________________ There are a vast number of people who are uninformed and heavily propagandized, but fundamentally decent. The propaganda that inundates them is effective when unchallenged, but much of it goes only skin deep. If they can be brought to raise questions and apply their decent instincts and basic intelligence, many people quickly escape the confines of the doctrinal system and are willing to do something to help others who are really suffering and oppressed." -Manufacturing Consent: Noam Chomsky and the Media, p. 195