What is this PCI dohicky?

[crashwg]

This thing came in an old hp pentium that used to belong to some sort of office building.

I'm not quite sure what it is but on the sticker it reads:

Don't remove this module unless a PCI card is installed

In four different languages I might add...

I removed it anyways and everything seem to be working fine in dos.

Any ideas as to what it might be?

[Matt, GoC]

Ooh, ooh!  I know!  Perhaps the secret to making the world's most perfect loaf of bread is contained in those very chips...  You, sir, are about to be a very rich man!

[crashwg]

Ooh, ooh!  I know!  Perhaps the secret to making the world's most perfect loaf of bread is contained in those very chips...  You, sir, are about to be a very rich man!

  Ummmm, OK...

[crashwg]

I had a revelation "why not look up the part #, duh!"

So I typed "HP 5064-0289" into my search engine of choice and came up with the term "PCI TERMINATOR"

Now I no friggin' clue what the heck a "PCI TERMINATOR" is, but it's one step closer to figguring out why this thing should not be removed and yet the computer is still working just fine without it...

[Matt, GoC]

I wouldn't loose too much sleep over it then if I were you.

[TheTick]

I had a revelation "why not look up the part #, duh!"

So I typed "HP 5064-0289" into my search engine of choice and came up with the term "PCI TERMINATOR"

Now I no friggin' clue what the heck a "PCI TERMINATOR" is, but it's one step closer to figguring out why this thing should not be removed and yet the computer is still working just fine without it...

We used to have these on server racks my last company built. Its like a SCSI terminator... the other peripherals may still function with it removed, but you take a performance hit (as well as possible signal loss). They usually only came with motherboards/cases that employed some type of riser card to rotate the peripheral cards.

My guess is your motherboard has a riser card (with more than one PCI slot) plugged into a single PCI slot. I'd leave the terminator in (should be in the last slot of the riser card).