booting to xp os cdt to boot to

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jwm81us

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Mar 21, 2013
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moved cd rom to 1st in boot menu and says selected boot device not available. Drive is working fine. Boot menu says "onboard OR cd rom." No way to choose 1 or the other. How can I get it to boot to disc?
 
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jwm81us

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Mar 21, 2013
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right. it does. I hit F2 & go into setup and change the boot sequence & still no good. thanx 4 posting
 
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TenPc

TenPc

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Jul 11, 2012
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If your PSU is under-powered the CD drive will not be aailable. The tray will open and close but any cd disk ill not boot.

What is mak and model of the PSU, should be minimum 400 watts for standard setup of hardware but should be 600 watts for use with an OS.
 
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hang-the-9

hang-the-9

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Mar 25, 2010
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You have some things confused with your answer, you need to have a VERY VERY weak power supply to not have the CD drive work. The power supplies you listed sound like they are for a GAMING system with high power requirements. Many systems run fine with about a 200 watt power supply, many business systems have a 220 or a 240 watt power supply.

If the system refuses to boot to the disk, the disk could be bad, or the drive could be bad. Test the disk in another computer.
 
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TenPc

TenPc

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Jul 11, 2012
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A 220 watt or 240 watt PSu is really only about 180 watts total power. Back in 2001 he PC workshop I worked at were uing 220 watt power supplies for 486DX PC's way before Pemntium I became available for us (donated by the public).

Your business systems are not using mid to high end video cards (probably onboard video out) nor even 52x cd drives most likely only 4x cd ROM drives (with no DVD option nor optons for burning Cd's) and onboard video out.

You should not be tellling people that a 220 watt or a 240 watt PSU is an acceptable PSU for current standards or standards as far back as 2003 for a PC that is most likely not used for Office products alone., that is irresponsible of you and you should not have been so outspoken against me.
 
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hang-the-9

hang-the-9

Titan
Mar 25, 2010
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Where did you see the poster say he was using a high end video card? What I did say was that you don't need a minimum of a 400 watt PSU to run a computer. A regular PC will run fine on 300 or less. Modern small form factor business systems come with about a 240 watt power supply, towers are closer to 300, unless they are made as workstations. A DVD drive will pull at most 10 watts, and that would be for the worst power draw, most are 6 or so.
 
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TenPc

TenPc

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Jul 11, 2012
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A cd/dvd drive can pull as much as 18 watts when in full burn, depending on the drive and its specifications (usually PATA cd/dvd drives used the most power). Also, at first boot up, the PSU pulls as much power as is required by all hardware to their peak so that the capacitors on the motherboard are filled approrpriately. The CD/dvd drive is the last item to receive power so if the PSU is under-powered, there will not be anything left to make the CD/DVD drive work properly as it will require extra power to boot a CD.

Also, if the CD drive is not dual CD/DVD then a DVD disk will not boot.
The OP has not yet stated what PSU power is stated on the PSU, not actually returned a reply so I assume we have scared him off.
 
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