Dell Optiplex 620

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t-blan

t-blan

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Aug 17, 2009
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I just got an Dell Optiplex 620 , and since i got it all it brought me was trouble :pfff: , i guest that's why i got such a bargain .
WD Caviar SE SATA HD 7200 RPM X2
512 MB PC Samsung memory X 4
3.8GHzPentium 4 HT Processor
This Machine has a total of 8 USB ports (2 in front)
Ethernet adapter , Graphic card sound card on-board.
It had windows XP pro installed and running normally but i couldn't get the computer to recognize my USB keyboard nor my Mouse, i cannot do any configuration in the bios because it doesn't have any PS\2 ports , so i use a serial Mouse and i connected it to my Network trying to install the needed drivers and when i restart the computer the serial mouse stop working , i tried to shut it that by pressing the power button (not holding it until it shuts off ) and while the windows was shutting down i got this blue screen witch i'm sure some of you have experience .
Technical Information
*** Stop: 0X0000007E (0x0000005,0XBABB09B0,0XBACE79BC,OXBACE76B8)
*** Kbdclass.sys - Address BABB09B0 base at BABB0000,Datestamp 41107b08
.
I could of gone to safe mode and try to fix it but any USB keyboard i use seem to work :fou: . I ask any off you have experience something like that to please help me . thank you.
 
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I have had alot of gx620's in the past and very few problems...

What kind of keyboard do you have? where are you plugging in? I don't know if in actuality it matters... but I usually plug in the same way I would a ps2 keyboard. I plug the keyboard in the top left most usb slot, and the mouse in the one next to it.

plug the keyboard in, power on and just keep pressing F2.

other troubleshooting steps you may want to take : Remove all but 1 ram stick ( leave the stick that is closest to the cpu )

I've literally had dozens of gx620's, gx520's and I don't think I've ever had a usb issue.
 
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Thanx for the reply, I fix the blue screen problem but the mouse and Keyboard still doesn't work, I'm using and HP multimedia keyboard , and a dell optical mouse. I tried a dell keyboard and an other mouse in all the 8 different USB ports and they did not work, the light of the mouse turn's on normally when i plug t in and that about all it does , all i have to rely on is an old Serial mouse, I'll try what you told me and let you know how it went
 
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Common men didn't you read what i wrote i the upper paragraph ? i cant get into the bios because the USB keyboard wont work and it does have any PS/2 ports.
 
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I tried that , and the keyboard is brand new , it work fine on my other PC
 
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How can i reinstall the windows if i can even use the Keyboard to make the required setting , like boot from CD ROM or so , you guy know to well when you are booting from CD ROM it requires that you press a key from the keyboard :pfff: :sweat:
 
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Hi. I have the same problem with the same model, however, my gx620 can't even past the post seccion, after the dell's initial screen it says there is a keyboard error and stops there. Since usb doesn't works, can't press F1 to continue neither F2 to go to bios.

Did you solved your problem?
 
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I did, it was the same as in the back doors, no keyboard detected, no bios acess, no boot, no nothing, it just stays there waiting for a keyboard input (f1 to move on, ignoring the errors and F2 to enter the bios). It doesn't even gets to the part where dispalys the amount of ram...
 
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This reminds me...

Since I didn't had ddr2 to put in it, I got some from a friend, kingston ddr2 kvrXXXXX something. In the kingstons memory search page, dell's gx620 recommended ram is some KTDXXXX modules.

Might it be that inadequated ram may lead to post errors? Or should it give error right in the start, before any screen, like when there is no memory installed?
 
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And the keyboards (2 of them) I tried (one corded, other wireless) are not original dell. Wireless one is microsoft wireless desktop keyboard 1000 and the other is some rubbish white brand.

Might this be a problem? Not all keyboards are born equal, but it's just a keyboard...
 
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Yes, it should, but as the author of this one had the same symptoms I did, and the thread is nearly one year old, I would like to know how It did turnout to him...

And since the last post was about 7 or 8 months old, I hardly can be acused of hijack someones else thread, after all, it was abandoned.
 
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The problem is most likely because you're using a USB keyboard, not PS2. Try using a PS2 keyboard, and tap the delete key on startup to access the BIOS. Once there, look for the USB mouse/keyboard settings, and enable them. That will solve the non-responsive keyboard in the POST sequence.

Now, to your original issue. While still in the BIOS, look for the 'halt on errors' settings. Change that setting from keyboard to no errors. That way, if it's not detecting your keyboard in the POST sequence, it'll continue on to windows.
 
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Thanks for the replying.

The dell gx620 has no ps/2 connctors, otherwise I would have already tried them...

There are only USB's.

And because of that I can't go into bios and do what you said - thats why I would like some input from the original treader, to know how/if he solved yhe problem...

And from what I understood from this model manual, the default settings for usb keyboard and mouse is on... so thats probably not the problem. I guess it's realy something to hardware level, like burnt logic or whatever...

USB is great, until it stops working or giving headaches like bad connections, drives and inputs going randomly down, etc...

This sucks
 
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I did removed the battery and cleared cmos (actualy its labeled as som rtc_clr or something), altought not for five minutes.

Anyway, only after new year I will be able to test it, I'm out for the holidays and wont take the hardware with me.

Then I will try that, thanks.

Have a Happy Holidays!
 
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Yes, it should, but as the author of this one had the same symptoms I did, and the thread is nearly one year old, I would like to know how It did turnout to him...

And since the last post was about 7 or 8 months old, I hardly can be acused of hijack someones else thread, after all, it was abandoned.
Click to expand...
I haven't reply to this treat because i haven't receive any relevant suggestions , i did buy a USB pci card it works after windows starts and not before so i cant make any changes to the bios if i wanted to.
 
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