my Compaq Presario 4840 Page

[About this page] [About the PC] [Neat Stuff] [Warnings] [Captains Log] [Message Board]
[myTv -presario TV software] [4840 picture(s)]


About this page

On Monday Oct. 20th, 1997, I broke down and purchased a Compaq Presario 4840 from my local computer superstore. This page documents the 'life' of this computer, In hope that someone may benefit from my experiences. Also its a lot of fun.

I've kept it as one page for simplicity, that may change. Graphics are coming. I've tried to make it simply HTML compliant, if I've used any -isms that cause your browser trouble, let me know and I'll clean 'em up.

What's in About the PC?
This has specs on the 4840, the more I find out, the more I'll post.

What's in Neat Stuff?
This is notes on features that I've found and like.

What's in Warnings?
This is about things NOT to do if you have a 4840. (Things that I regret doing).

What's in Captain's Log?
This is my record of my experiences with the machine.

Where are the latest entries? (updated May 20, 1999)
This jumps somewhere down in captains log to the newest entries.

What's in the Message Board?
This is a place to leave messages, questions, comments, tid bits, stories, feedback, small gifts, etc.

What's the myTv program?
This is a little program I wrote that opens a window to display the video-in of the presario like a tv. Like ATI's ATIPlayer but simpler.

What's the picture page?
This is a page of pictures and a bit of documentation about the inside and outside workings of the 4840.

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About the PC

  • Make: Compaq
  • Model: Presario 4840
  • CPU: Intel Pentium II running at 266 Mhz
  • Memory: 32 MB RAM
  • Storage: 6.5 GB - Quantum Bigfoot
  • CD: 2X DVD
  • Video: On motherboard ATI Rage Pro AGP chipset w/4 MB
  • Audio: ESS 1887 - non-wavetable
  • Modem: 56k voice/data/fax
  • Features:
  • Video/Audio in ports on front of case (more info soon)
  • Black Stylin case and perhipherals
  • Compaq's 'button center' on the case
  • Phone/Fax/Answering machine software
  • Comes with: Works, Money, a paint program, 3D Accelerated Formula 1 racing, and a Sega game, MS Encarta, MS Bookshelf, MS Works, MS Money, also startups for CompuServe, AOL, AT&T (my isp), and SpryNet
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    Neat Stuff

    More Neat Stuff - 12-15-97

    Video In

    The Phone Thingy

    3D - The ATI Rage Pro AGP

    266 Million Times a Second

    A Second Look at Video In

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    -WARNING!-WARNING!-

    DVD and IDE

    CD Tray Cloese on Reboot QuickRestore Password

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    Captains Log

    10-19-97

    10-20-97

    10-21-97

      A long story shortened

      Here's the essence of it:

      1. called tech support - advised to defrag and scandisk.
      2. did that
      3. called tech support - advised to Quick Restore
      4. while doing that it still squealed
      5. opened case and listened (duh)
      6. keen auditory senses pointed me to the squealing hard drive
      7. added that to fact of HD light being on while squealing
      8. called tech support - told them it was the HD. They agree
      9. will have someone come out, expect 3 days BEFORE they call to make appointment
      10. return computer to store, exchange it for new one (30 day return policy)

      Reinstall

      Spend the rest of night reinstalling things I installed yesterday.

    10-22-97 - 10-23-97

      The Second Problem

      Like any good geek I want to make sure there are no bug fixes patches out there that I don't have. So I load up the Compaq page, go to Presario and bug fixes. They list about 4. None seem to apply, except for one - an MPEG update (had noticed that the MPEG video was a bit skitterish with the first machine).

      Downloaded file. Didn't install it yet. Went to show off the DVD to Cassie - didn't work. <Fumes>. Turns out my Zip drive installed it self as drive D: confusing the SoftDVD software who was expecting the CD to be D:, but in my personal confusion I figured maybe the bug fix from compaq would help. Fatal mistake. I installed the fix. (Should have known something was wrong when they suggested I remove some software before installing). After installing the fix, DVD still doesn't work. Error is different. Dang. Study the situation closely. Read some help. Doh. Figure out the Zip drive problem, use System control to set Zip to be drive E:, reboot. DVD is now D: , great, run DVD player. Error.

      Realize the fix has broken the DVD software. Try to reinstall DVD software

      The Password

      The basic facts: The DVD software IS on the Quick Restore CD. It is in a zipfile named \data\win95b.zip. It is locked. Password protected.

      Looked at usenet - seems the password for the older models is PREDATORnnn where nnn is the last 3 numbers of the name of the zip file. Didn't work. Used fast zip cracker, with PREDATORxxxxxx where x is any char. Let that run a few hours. Nothing.

      Read post suggesting its tied to BOM file number. Tried PREDATOR and all numbers, letters I could find on the CD, scoured the net for any info. Nothing more found.

      Called tech support. Tech support asked me why I downloaded the fix and told me that the fix wasn't for my computer. I argued with him a little, then gave in. Then I double checked. The docs for the fix said clearly 'for 4840'. He apologized and said it was a mistake.

      Then he admitted they did have someone with this same issue. As for a the fix, he suggested I reinstall DVDsound(?) which I had already done 3 times. I did again for him, and it didn't work. He said the only other option is the quick restore (ugh).

      I inquired about the password. He said those are things we don't want you to mess with. (!) I asked him why, He said he didn't know, thought it had to do with MS not wanting people to make copies of the SW, but I said the CAB's aren't protected, thats what I'd use if I want to make a copy. He said something about not having more than one copy (a backup copy) of windows, and that was about it. No password. Drat.

      Resignation

      I had already uncompressed the exe's from the install disk, searched them with a hex editor (for any sign of the password). And searched the CD for any clue. It was getting late, I resigned myself to reinstalling. I put in the red cd, and reset the machine. Wiped.

      This time around I will take precautions.

    10-24-97

    10-27-97

      How many can you chain?

      Here's a short inventory of my setup:

      Keen eye will note that there are 3 parallel port devices listed above and the 4840 has but one port. But the Zip and the Scanner have pass through ports. So, in theory I could hook the Zip to the PC, the Scanner to the Zip and the printer to the scanner. In theory.

      Hooked them all up. Turned it all on. Nothing worked.

      I did get them all to work by unhooking them all, then setting up each one plugged into the parallel port alone, so I plugged in the Zip, installed the software, tested it, shut down, unplugged Zip, plugged in Scanner - repeat, and repeat for Printer. Then I plugged my chain back up again.

      It works! For a while

      Not to be content with mere functionality (And having had supposedly working setups crash at ALL the wrong times), I decided to test the setup. So I scanned a picture, Saved it to the Zip, loaded the picture off the Zip, and Printed it. OK. No problems. Then I thought, "What if I wanted to do something else, like load or save a picture, while something was printing?" So I tried that. Bzzzzzt.

      The system froze solid. The Zip stopped zipping. The printer stopped printing. The mouse pointer stopped right over the file folder on the Zip I was trying to open. The printer beeped once. Its status light flashed green. I tried the 3 finger salute. Then the usual, system-hung-press-every-key technique. It was locked. The daisy-chain idea was busted - this was way too fragile. Total system hang is just unacceptable.

      Did you want ECP?

      Somewhere in this long string of reboots and installs I thought about checking to see if LPT1 was set in ECP mode (under Settings). Surprise! It wasn't.

      To set it to ECP I shut down, and rebooted - pressing F10 durring the first few seconds after reboot, got me into system setup (I'll look at this in much more detail later). I found the settings for the Parallel Port, and changed them to ECP, saved my settings and rebooted.

      On reboot, "Settings" showed that Win95 automagically detected that the port was ECP and what was listed as LPT1 was now ECP port.

      Of course I tried my daisy chain again, now that I had ECP. No change. No different. Still a hang. LPT2

      My ECP literature says that you can string somthing like 7 parallel devices off of an ECP port and all kinds of neat and nice things, but they should be ECP devices I'm sure. I know the Scanner and Cannon Printer are ECP, the Zip on the other hand...

      My dim understanding of the chain situation is that the Zip is NOT and ECP device and really prefers EPP or Bidirectional mode, and they suggest that you Do Not, plug an ECP device/printer into the Zip.

      So I needed to install a second parallel port.

      Opening the Case

      This was the first time I opened the case on this machine. I carefully removed the Compaq 'Tamper Evident Sticker' and stuck it on the rear of the machine. Got out my Torx - T15 bit for my driver, and unscrewed the 3 screws, that hold the side panel. I have to wonder about the tamper evident sticker, the use of Torx head over, say phillips like every other vendor in the world - makes me think they don't really want me in there, oh well.

      The panel thing is cool. I like that, no big wobbly case cover to have in my way while I'm working in there. Now to business. To add a card you must remove the 'card cage' from the machine. Its a riser board in a metal box/cage sort of thing that has 3 ISA slots (maybe 4) and 3 PCI slots on it, and what you see when you look at the slots on the back of the machine.

      Adding parallel card was easy. Card was set to EPP (not ECP), 278H, IRQ5. Rebooted Win95. Went into "Add New Hardware". One of these days I'll remember that you are supposed to go into "Add New Hardware" BEFORE you install the new hardware. I skip the auto detect new hardware, select PORTS--> Parallel Port. OK. It sets the IO Address wrong. No way to fix it here. I select ok, and finish the process. It wants to reboot. I let it. In settings the new LPT2's address is still wrong, (little yellow exlamation point) so I go in here and change it to 278H.It wants to reboot again. I let it again. This time it recognizes it.

      Breaking the Chain

      I now have my Zip alone hooked to my new LPT2, bidirectional port. The scanner and printer are daisy chained together off of the ECP LPT1. They seem to be working fine so far, although I must note that I have not tried to Scan while printing or vice-versa. I feel the likelyhood of that happening is a little less that accessing the Zip while doing either of them, but I will check to make sure.

      The First Look Inside

      Again, I'm going to add much more specification detail soon, but just to let you know about neat stuff I saw in there:

    10-28-97

      The LAN

      We now have his-n-hers computers. Cassie has inherited my 486. soon to be 586/133, which should be fine for wordprocessing and playing Sherlock. And I of course have my 4840. Now if only they could talk to one another...

      I got Cassie's permission and ordered 2 NIC's. They are BNC and TP compatable, Ethernet cards. For our little 2 machine show, we'll use BNC. I went with the AXEL brand. The seemingly cheapest in cards in the world. They were $16.00 each, plus wayy too much for next day shipping and handling, from PC Mall. In retrospect I should have gone with a more expensive better supported card, but I was curious to try the el cheapo cards to see for my self what they are like. Axel? The box the cards come in sys nothing about Axel. Its colorful with a picture and some pseudo-specifications on the back. Opening the box, into my hand dropped a floppy, and a clear plastic thingy holding the card and a BNC T-adapter. I waited for the flimsy sheet of paper that usually passes for a manual. Nada. I looked into the empty box. Oh well, they aren't much help anyway.

      The cards look pretty standard, a BNC connector and a RJ-48 jack on the end, an open socket where the boot prom goes, lots of chips, no jumpers - a good thing, all in all a pretty clean design, no wires or hacks on the board. Not that this makes it a good card, but I know if signs of wires and hacks usually mean its a bad one.

      Time to crack open the machines. I start with the Compaq, remove the panel, take out the card cage, remove the slot cover, put in the NIC, and put it all back together. Boot.

      Oddly enough, Windows reports that its found a new device, and asks for the driver disk, I put that in, it loads drivers, prompts for reboot. On reboot it gives a 'Can't do something with DHCP'error which is a good sign that the card is working. Looking at my System control - all is well. The card is installed.

      Pain and sufferin'

      The good news is that the card in the 486 is working. The bad news is that I'm not sure why it is - or why it wasn't for the first 2 hours I messed with it. On first boot, Win95 found the card, installed the drivers, and rebooted. On second boot, it didn't give the 'DHCP error' and a system look showed a exlamation point by the driver. Dang. For the next 2 hours, I went through the usual PC diagnostic circus: Inventory IRQs, inventory ports, check for any conflicts, check for the conflicts that your check for conflicts missed, reboot a zillion times, adjust the drivers of the thing you think is causing problems, remove the drivers of the thing you think is causing problems, remove the thing. Start over.

      Nothing seemed to make it work. The machine is a VLB machine, and I had the NIC in a shared slot. Ah-Ha! With no basis other than the fact that, that was about the only thing I hadn't changed I moved it to a plain ISA slot, and moved the SoundCard to the shared slot.

      Its Alive!

      It worked. Fancy that. It really worked. On reboot I got the 'DHCP error' message. Yay. OK, now to make sure nothing broke look at 'my computer' -hmm no CD-ROM. Soundcard has done that before, likes to loose the CD if you fool with stuff. I needed to reinstall the soundcard anyway, because I was getting 'Incorrect VXD' errors, so I pulled all the soundcarddrivers (deleted) from the System control, and let plug-n-play/pray/wish/guess/hope take its course. Another hour and a half later it works. Again, not really sure why it works in that I'm not sure why it wasn't working. My general theory is that 85% of all broken things just want a little attention, a wiggle here, a push there. Take it out of the case, let it get some air and most times, when you put it back in, it'll work. So now I had the NIC and the CD working. Time to network!

    11-11-97

    11-21-97

    11-25-97

    11-28-97

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