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How can I find out if my computer has limited bus power. what is bus power

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I simply plugged in the portable hard drive and it worked.
Thanks for your email.

Posted on Jul 25, 2008

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On 2000 Jeep Grand Cherokee Limited gives DTC P1687- No Mexhanical Instrument Cluster BUS Messages Received. What could be the problem?


Broken wire from your onboard computer to the test port, or broken wire or circuit inside your onboad computer.

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My current data bus speed is 400Mhz I want to upgrade my memory, Can memory of speed 533Mhz work. What changes will I have to make?


It May work but the bus speed is going to stay the same if it is max clcoked at 400 MHZ thats it no faster unless your computer can be jumpered to a higher speed but most you are limited by the clcok speed of the buss.

Mar 26, 2010 | Compaq Evo D510 Minitower (Open Box)...

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Toshiba L305-S5944 T 3400 Want to upgrade ???processor the bus speed is F/S bus speed is 667 can I break this Limit?? with a processor??? are is that it fast as it will go??? what does efect the board...


Hi,

With laptops you are severely limited with what you can do regarding the processor. It's highly unlikely that you will break the 667 front side bus barrier at all. A laptop BIOS just doesn't support CPU overclocking and neither does a laptop motherboard.
The only thing you could do is upgrade the processor for a better one like a C2D T8100 for example but the bus speed on that is only 800 MHz so there are limitations.

A desktop motherboard is a different kettle of fish as some motherboards are designed with CPU overclocking in mind and are cheaper to purchase.

If you wanting to upgrade the processor for gaming purposes then i wouldn't bother as the GPU (graphics processing unit) in the L305 is not that good at all.

I hope i have answered your questions for you.


Regards.

Jan 24, 2010 | Computers & Internet

1 Answer

Can I add a SATA controller in a PCI slot? if so what is the storage limit? I am looking to have atleast 4TB.


Yes this can be done and the only limit on size is the drive size. The current max size for mainstream drives is around 2TB so make sure the adapter will host more then one SATA ports as at least 2 drives will be required.

Also make sure the adapter card will work with the Operating System as many are designed to be used under Windows only so if you are running Linux or BSD, there may be no support.

The other limit is the fact that the PCI is not a fast bus by current computer technology standards. If there are additional PCI devices such as network interface cards, integrated graphics, modems, soundcards, game controller adapters, USB expansion ports, Firewire expansion ports, etc.. theses devices will all be sharing the bandwidth of the PCI bus, leading to slow read and write performance of the additional storage.

If you are adding these drives to have fast storage, I suggest saving the money for a new system that makes use of current technology.

Dec 15, 2009 | IBM eserver xSeries 205 8480

1 Answer

NHJ Limited V@mp VP408 (512 MB) MP3 Player


go to my computer> properties>hardware > device manager >universal bus driver>right click on it> update driver>
then1 
1.yes this time only> next 2.choose advanced option>next 3don't search i"ll update from........>next4.click on show campatible> next> next 5. now it updated then restart you computer 
Then try to format your drvice sir
your problem will now soved 
 

Feb 07, 2009 | NHJ Limited VP408 MP3 Player

1 Answer

Western Digital Passport 160 GB external HD won't load.


WinXP SP2 blocks the use of the drive because it thinks it draws too much power. But there is a simple procedure to override this (from WD site):

"Problem:
Under Windows XP, an error message of "Power Surge on Hub Port" or "USB device has exceeded the power limits of it's hub port" is displayed when connecting a USB device to a USB port on a computer or Hub.

Cause:
Under some computers, USB devices are only allowed to draw a maximum of 500 milliamps (mA) per connection from the USB port on the computer system or from a USB hub. Under the Windows XP Operating System, with the release of Service Pack 2, if a device attempts to draw more than this (500 milliamps), a USB port balloon message is displayed to indicate this over current condition. When connecting a USB device that draws power from the USB bus, a very brief over current condition is sometimes detected by the OS, and the warning message is displayed.

Resolution:
This message has no affect on the functionality of the USB port. The USB hard drive should still function correctly on the USB port regardless of the error message. To prevent the USB Power Surge Alert message from displaying, please complete the following steps:
Click on Start.

Click on Control Panel.

Double-click on the System Icon.

Click on the Hardware Tab.

Click on the Device Manager button.

Click on the + next to Universal Serial Bus Controllers to expand the selection.

Right-click and select Properties on any listing that displays USB UNIVERSAL HOST CONTROLLER.

Click on the Advanced Tab.

Check the box that says: Don't tell me about USB errors."

This works fine, and the drive works fine afterwards. I suspect it actually draws less power than they say. Maybe it has a brief power draw spike on startup, but it's running power seems less. In any case, it works fine without the Y cable. I do think it is tacky that WD doesn't give the cable for free, since my $7 Sabrent 2.5" Hard drive enclosure came with a y cable.

But most likely the drive will work fine for you. It is a lovely quiet drive, and takes up no space at all.

Feb 01, 2009 | Western Digital Passport 160GB External...

2 Answers

Memory type for insignia D400A


This computer has DDR SDRAM
The processor is an Intel pentium 4
In some cases quoted as a socket 478 so a compatibe processor should work

May 02, 2008 | Insignia D400a PC Desktop

1 Answer

External Hard Drive -- too much power for my USB port on my computer


Hi mhjohn

First, this is actually a good thing in a way. The reason is, it is actually telling you right up front that your USB bus is underpowered for this device. That's a huge improvement over issues caused by underpowered USB buses in the previous model computers. In those, we were left to having to figure out what the problem was when a USB device inexplicably stopped or didn't work.

What is happening is, your new external hard disk drive (HDD) is trying to run off of power taken from your laptop's USB "bus" (circuitry). This is OK for devices needing low power. But in the case of external hard disks, it's "iffy" whether there'll be enough power on the USB bus to support them. Particularly on laptop computers.

You need only attach an A/C adapter to your external hard disk drive (HDD) and you should be OK. If that is not an option, connect a **powered** USB hub to your laptop and plug the external HDD to the hub instead.

By "powered" I mean a USB hub that comes w/ an A/C adapter. In either case, using a powered USB hub or attaching an A/C adapter to your hard disk drive will remove the external hard disk's power load from your laptop's USB bus and provide sufficient power for the HDD to run.

You can find USB hubs at Newegg.com and lots of other online high tech stores. I like Newegg because their prices are competitive, their customer service is excellent and there're customer reviews of most of their products there as well.

If you have any more questions, comments, observations - anything at all, just let us know. We're here to help.

Thank you,
BJ @:)

Apr 15, 2008 | Computers & Internet

1 Answer

Overclocking


First off... be warned overclocking is not for the faint of heart... now let us begin...

MAKE SURE YOU HAVE ADEQUATE COOLING!!!!

I can't stress this out enough if you plan on overcloking it's worth spending some money on some fan's specifically a CPU fan to make sure it stays cool. A side effect of overclocking is increased heat.

Restart the computer and go into your BIOS. Look for the setting to change the bus speed. Depending on your specific CPU it should be 200 MHz (if it's not don't worry, most computers now are 200 MHz). There should also be an option called the multiplier. This one is usually unavailable. If it is available you have a high-end CPU model that is "unlocked".

THEORY:

The system bus is multiplied by the multiplier and gives you the resulting speed.

200 x 16 = 3200 => 3.2 GHz

IF your multiplier is unlocked you can increase it... it's not then we have to use the system bus.

When you change the system bus it increases the speed of everything in your system... that is the link in between  individual components. But it's a double edge sword... it will cause you system to become unstable more quickly and reduce the maximum overclocking potential.

PRACTICE:

Increase the bus speed 3~5 MHz at a time. Restart the computer boot into the Operating System and run applications you normally would. If nothing crashes, hangs, freezes, locks up... you can reboot the computer and increase the bus speed again. Repeat theses steps until:

a) reach a point where the system becomes unstable
b) you feel like pushing your system more is getting to risky


This is a very basic answer on how to overclock. For more information, guides and other goodies http://www.extremeoverclocking.com/ is a good website for more information and guides.

WARNING: If you push the system to far to fast without doing it gradually you can surpass the computer components limits and cause damage to the computer parts. I am not responsible for any damage that occurs. This is just a guide.

Oct 28, 2007 | Intel Socket 478 CPU COLLING FAN & HEAT...

2 Answers

Power Surge error message


Hello,

 

 

I guess that this could be your error message:

"Error message when you wake up a Windows XP-based computer from hibernation or from standby: "Power Surge on Hub Port: A USB Device has exceeded the power limits of its hub port"

 

If it is the case, please try below solution:

 

SYMPTOMS

 

When you wake up a Microsoft Windows XP-based computer from hibernation or from standby, you may receive the following error message:

 

Power Surge on Hub Port: A USB Device has exceeded the power limits of its hub port. This error message is displayed even if there are no USB devices connected to the computer.   WORKAROUND loadTOCNode(1, 'workaround'); To work around this issue, disable the USB 2.0-enhanced host controller.

Note When you disable the USB 2.0-enhanced host controller, you lose USB 2.0 functionality. That is, you revert to USB 1.1 functionality.

To disable the USB 2.0-enhanced host controller, follow these steps: 1. Right-click My Computer, and then click Manage. 2. Under Computer Management (Local), click Device Manager. 3. In the Device Manager pane, expand Universal Serial Bus controllers. 4. Right-click the USB 2.0-enhanced host controller, and then click Disable.

Note The name of the USB 2.0-enhanced host controller may vary. 5. When you receive the confirmation message, click Yes. 6.

Close Device Manager.

 

 

I hope that this should resolve the issue for you.

 

 

Please let me know the result. 

 

you can mail me at thumuvikram@rediffmail.com for any further assistance on this issue.

 

I'll be glad to help you.

Oct 18, 2007 | IBM ThinkPad T43 Notebook

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