Dell Optiplex 620

[t-blan]

I just got an Dell Optiplex 620 , and since i got it all it brought me was trouble , 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 . I ask any off you have experience something like that to please help me . thank you.

 

[leopinto]

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.

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.

Thats what happened to me, only with me it was worse:
Since there is no working usb, bios doesn't detects keyboard and because of that, the boot hangs in the keyboard error. Can't go to Bios to remove the keyboard error halt.

So, I dont even get to disk/windows... just get stuck in post where it says to push F2 (or is it F12, can't remenber right...) to go into BIOS, but... I can't, there is no keyboard detected...

It's simply a dead end. I think I'm going to ditch the dell and just put toghether a cheap system. Only regret I can't even reuse the dell desktop case, I kind off like it, but it's for BTX boards and more pain than it's worth it to make compatible with mATX.

Thank you all.

 

[t-blan]

Thats what happened to me, only with me it was worse:
Since there is no working usb, bios doesn't detects keyboard and because of that, the boot hangs in the keyboard error. Can't go to Bios to remove the keyboard error halt.

So, I dont even get to disk/windows... just get stuck in post where it says to push F2 (or is it F12, can't remenber right...) to go into BIOS, but... I can't, there is no keyboard detected...

It's simply a dead end. I think I'm going to ditch the dell and just put toghether a cheap system. Only regret I can't even reuse the dell desktop case, I kind off like it, but it's for BTX boards and more pain than it's worth it to make compatible with mATX.

Thank you all.

I wish i could be of help men. My did the same thing said something about " booting from floppy disk drive failure " and i didn't have a floppy installed so i plug one in and it started normally because the drive "C:" was the second booting device after the floppy, your bios setting might be difrent so i don't know if it will work for you. ( by the way , I just use mine as a home sever i back up all my data and file on it )

 

[leopinto]

OK so let me get this straight.
windows works but you have no USB ports so your mouse and keyboard will not work and you can't even get into the BIOS, correct.?
please fill me in if I am missing something..

All correct, except for the windows part. My pc doesn't even get to hard drive/windows, just stops in the boot part where I should/but can't go into bios. Just sits there waiting for keyboard input, which is impossible (no usb's) and doesn't moves forward because it seems that the settings in bios are for the boot to stop when it finds some kind of error (no keyboard detected is one of them...).

So, no windows, no bios, no keyboard, no nothing, just boot screen... it's a vivious circle... well, kind of... actualy seems more like a dead end!

 

[leopinto]

I wish i could be of help men. My did the same thing said something about " booting from floppy disk drive failure " and i didn't have a floppy installed so i plug one in and it started normally because the drive "C:" was the second booting device after the floppy, your bios setting might be difrent so i don't know if it will work for you. ( by the way , I just use mine as a home sever i back up all my data and file on it )

Mine said the same thing, gave a floppy error. I then attached a floppy and the error was gone. Then it gave me a hdd error. I connected a ide hdd and solve that one too. Only the cursed keyboard error can't be removed, since the board can't detect the usb keyboard and there are no ps/2.

Who was the genious that thought that it was time and a good idea to remove ps/2 connectors from motherboards?

 

[aford10]

Hey guys. I think something like this would be your only option.
http://www.computercablestore.com/PC_Insert_PS2_Port_2x4_pi_PID1018.aspx

 

[leopinto]

I do not remember the GX620 motherboard from memory that well.
isn't there a motherboard / BIOS reset jumper.?
it seems that removing the CMOS battery didn't work.

The manual states a clock reset jumper, not bios reset jumper...

 

[leopinto]

Hey guys. I think something like this would be your only option.
http://www.computercablestore.com/PC_Insert_PS2_Port_2x4_pi_PID1018.aspx

Unfortunately, that won't work, because the dell gx620 doesn't posesses standard connectors, they have smaller and closer pins than standard connectors (those are like hdd ide or floppy pins ).

Theres a ser2 connector which as a serial port and a ps/2 port on those pins but I can't find the pinout diagram anywhere. If I could, I would try to connect to a cable similar to that one you refered that I have somewhere and would give it a shot...

I know there's a dell cable that connects to this ser2 and add's a ps/2 plug in the back of the box, but even in ebay those are a little expensive, not to mention it may not solve the problem or even create a new one.

I think the best is to get a new cheap mobo and reuse all the other stuff and a old atx case I have around...

 

[t-blan]

LEOPINTO , I think i figured out what was causing the problem , it seems that on of the chipset on my Mother board is friend rendering the USB port un-operational , you should check yours to see if there isn’t anything burnt on your mother board. If it's the case for you as well , just get an other Mobo

 

[leopinto]

Are you talking about the main chipset or some smaller one?

I see one chipset labeled nh82801gb and another one wich is unindentified but as a heatsink on top. Then there are other smaller chips, one is broadcom, other smsc...

However, I just gave the board a look and can't see anything burnt, everything seems to be ok.Do you have some more info?

Thanks anyway.

 

[t-blan]

Are you talking about the main chipset or some smaller one?

I see one chipset labeled nh82801gb and another one wich is unindentified but as a heatsink on top. Then there are other smaller chips, one is broadcom, other smsc...

However, I just gave the board a look and can't see anything burnt, everything seems to be ok.Do you have some more info?

Thanks anyway.

I'm not sure but it has , it's the one that right on top of the battery , It has Intel written on it ,something to do with the USB ports. It does doesn't look burn but i had to look very closely to find that out .

 

[powerpie5000]

I would also check all capacitors on the motherboard... Dell amongst other companies had major problems with leaking caps a few years ago (The Optiplex GX620 was one of the affected machines).

Signs of bad caps include bulging, fluid or corrosion around the base of the cap (on the motherboard itself), Brown or yellow "goo" on top of the cap... Leaking capacitors also have a distinct smell (similar to cat's p*ss in my opinion).

 

[leopinto]

It was one of the first things I searched for, but everthing seems ok.

The board is very cleen and the capacitors look like to be perfectly well, which, of course, doesn't mean they are...

 

[Guest]

Try another keyboard, and another, and another...

I have 2 620's and they are picky about keyboards at the BIOS level that work fine once XP is booted.

 

[Dark Lord of Tech]

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