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gekkoa
Bronze

My new Precision 390 wont boot-up - help please

My new Precision 390 wont boot-up - it doesnt get beyond the Dell logo page (which displays "BIOS Revision 1.0.5"). The Dell log screen disappears after 2 seconds, then comes back after 3 seconds then disappears again, comes back, goes etc., etc.,

There are no diagnostic beeps to report, and the diagnostic lights are changing the whole time ( until I install the diagnostic cd when they settle).

Ive run the diagnostic tests from the CD (cant do it from Hard Drive) and no faults to report.

Is Windows installed on the machine? Im not sure. Theres a windows logo on the tower! Anyway, I stuck in an XP disc to see if I could do something but nothing happens.

What to do. Help please.
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28 Replies
mombodog
Diamond

Re: My new Precision 390 wont boot-up - help please

Unplug all devices and cables from the PC except for the power cord, monitor, keyboard and mouse. and try to boot. If it does, then you have to plug things back in 1 at a time and try to boot, untill you find the one that is causing this condition.
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gekkoa
Bronze

Re: My new Precision 390 wont boot-up - help please

No devices connected, not even a mouse - just a keyboard, so this possible solution not applicable
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smoothmove
Silver

Re: My new Precision 390 wont boot-up - help please

Sounds to me like the BIOS reset jumper is engaged.
 
  Just an idea.
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gekkoa
Bronze

Re: My new Precision 390 wont boot-up - help please

How would I tackle that problem Smoothmove?
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smoothmove
Silver

Re: My new Precision 390 wont boot-up - help please

It would be a green jumper on the middle- right side of the mobo.  It would be #9 on the schmatic of the mobo from the Dell owner's manual.
 
  IF not    try unplugging the computer and remove the CMOS-  round silver battery and leave it out for about a minute.    Put it back in and try to boot up.  A bios setting may have gone bad. 
 
 When is the last time you updated the bios?
 
 
 
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smoothmove
Silver

Re: My new Precision 390 wont boot-up - help please

Oh,  there are tow positions for that cmos jumper, CHECK the owners manual for the correct positon. 
 
<ADMIN NOTE: Broken link has been removed from this post by Dell>
 
 
 
 
  ON the schmatic the cmos (#9) and the password jumpers (#23) fromt the first link I on this reply.
 
   

Clearing CMOS Settings

 CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

  1. Follow the procedures in Before You Begin.

  2. Remove the computer cover (see Removing the Computer Cover).

  3. Reset the current CMOS settings:

    1. Locate the password (PSWD) and (RTCRST) jumpers on the system board (see System Board Components).

    1. Remove the password from its pins.

    2. Place the password jumper plug on the RTCRST pins and wait approximately 5 seconds.

    3. Remove the jumper plug from the RTCRST pins and place it back on the password pins.

  4. Replace the computer cover. See Replacing the Computer Cover.

    <ADMIN NOTE: Broken link has been removed from this post by Dell>



 NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer.

  1. Connect your computer and devices to electrical outlets, and turn them on.


 

  If I get a call from Dell with a job offer, I am blaming this post. Smiley Very Happy

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gekkoa
Bronze

Re: My new Precision 390 wont boot-up - help please

Do the password (PSWD) and (RTCRST) jumpers unplug - ie., if i steadily pull on them im not going to rip out a soldered connection ami I?
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smoothmove
Silver

Re: My new Precision 390 wont boot-up - help please

they have a "pull tab" on them so they will pull off.  They are not soldered on.
 
 I would try pulling the battery first.  It is the easiest.  Pull it, wait a minute and turn it back on.
 
 That will reset the bios as well.
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smoothmove
Silver

Re: My new Precision 390 wont boot-up - help please

you will have to UNPLUG the computer BEFORE pulling the battery
 
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