Would an old Dell Pentium IV and an old IBM Pentium IV have an
"internal" USB port on their motherboards?
I've been looking for a way to add PS/2 ports to a computer that doesn't
have them so that I can continue using my PS/2 KVM switch. Most of the
computers I'm seeing nowadays don't have PS/2 ports for keyboard and
mouse. So, if I buy a computer that doesn't have PS/2 ports, I can't
use it with my KVM switch.
I did find several companies that made PS/2 port cards. The problem was
that all of these cards were PCI cards, and nowadays PCI slots on
motherboards are becoming rare as well. All new computers have PCIe
slots on their motherboards, and you can't use a PCI card in a PCIe
However, this product:
'SYBAUSA - SD-PCI-UPS2 >> USB to PS/2 Adapter (Bracket version)'
is neither PCI nor PCIe and will fit in any available motherboard slot.
It, presumably, just needs to be plugged in with a USB cable to an
"internal" USB port on the motherboard, or so it appears.
If I don't have an "internal" USB port on my motherboards, can I take
out another slot cover and run the USB cable through the opening out of
the case to one of the external USB ports?
If you have model numbers, you should be able to look it up.
I've seen it both ways.
A usb port is a usb port. Just need the right cables.
I've used one like the self-contained external one shown at the bottom
of the page
of your link.
It works mostly, often, usually.
Directly connected PS/2 keyboards with built-in touchpads work flawlessly,
but have random failure to connect at boot or random disconnects
when used with the adapter to USB.
I'm not sure I can blame the adapter dongle, because native USB
keyboards with built-in touchpads seem to have the same problem.
I've got multiple keyboards and they all behave similarly in this
regard. Independent keyboard/mouse work fine with the adapter.
I've not used a USB KVM switch, but have had issues with PS/2 switches.
Problem is that the switch has to emulate the disconnected devices.
So, if you boot a computer with the keyboard switched to the other one,
you get whatever the KVM emulates.
If your mouse or pointing device has more features, they may not
be enabled or cause problems because of the wrong driver.
No idea what happens when you try to connect a KVM switch on the other end
of a ps/2-USB adapter.
Long ago, I dumped all my KVM switches and went to a software
solution called synergy. You just move the mouse past the end of the
screen and it shows up on the other computer's display and the keyboard
goes with it.
This can be a great advantage if you have enhanced pointing device
functions that aren't supported under linux. The windows driver
manages the mouse interface and sends linux on the other machine what
it needs to to the function over the network.
Just be sure you're using the same version of synergy on both machines.
I don't know how many machines you can have, I've never done more than
three at a time.
Another good use for it is wirelessly networked media computer
across the room can be controlled from your local keyboard/mouse.
The disadvantage is that
I'm curious why you keep asking here instead a computer group. There
are one or two computer hardware groups which are still running.
I think you mean it doesn't use a slot.
If it can work plugged into an internal USB port, it will also work with
an external USB port. Just cut a little hole somewhere and wrap the
sharp edge with tape or something and there you go.
They also sell USB cards. I have one, with USB2, on a computer that
came originally only with USB1, and it had 4, or maybe 2, USB ports
coming out of the bracket, and one more USB port on the card, iow
internal. I don't remember what kind of slot it fit in, but I guess it
wasn't the very newest kind, since this was designed a) for people who
needed more USB ports (but didn't want to use a powered whatchamacallit)
or b) for people like me who only had USB 1.1.
And you're right. You can omit the cover entirely. Heck I've been
running for years with no case cover on, and except for maybe air flow
and cooling there's been no problem. No outside radiation causing a
BTW. how much does it cost? If it's cheap enough, I would want one.
Even though it doesn't list Win7 or 8, it still might work for them.
That's true in general but here the only interface is the USB port,
which I assume is pretty similar in win7 and 8. (not that I have any
plans to use either.) But someone on the hardware group is likely to
know more about this.
I still use old P4 desktops with linux. Since I also have no USB
kybrd or mouse, I bought this to hook up my PS/2 input devices to my
new rasberry pi's USB port. Works flawlessly.
Thanks for trying to help guys, but I contacted the manufacturer of my
KVM switch (IOGear) and they said that simply using a USB to PS/2
adapter wouldn't work. They said I'd have to provide PS/2 ports for
keyboard and mouse on the new computer somehow.
I think the Synergy software solution might be fine for some, but I have
two computers; a business computer and an internet surfing computer.
I'm concerned that without the two computers being physically separated,
any virus or malicious software I get onto the surfing computer could
infect my business computer as well. This is an important issue with me
that I'm not willing to compromise on.
What groups are there on usenet that are dedicated to computer hardware
Then just have two separate computer. Pentium IV pretty well belongs to
recycle bin. Motherboard running P4 cpu is pretty well obsolete.(for an
example look at max. memory size it can support) Many
new things(hardware/software) won't run on it. I always keep up-to-date
my book keeping box, the cost is claimed as business expense on year end
tax return.(you mentioned business) Rest of desk tops, lap tops in the
house, all have Linux(Mint or Ubuntu), W7 Ultimate or W8 Pro dual boot.
Sooner or later, time will come you get stuck with what you are running.
Impossible to upgrade, can't run apps. with new stuffs,etc. At least one
computer should be kept up-to-date with good back up. In the long run,
when you look back you will have wasted more money and time trying to
hang on to what you have now.
We run small retail business since we retired as a source of
supplemental income(our pocket money). We think you spend money to make
money in business. Again sounds like you are in some sort of business too.
I agree. I think the $3 gamble is worth it.
I have very rarely found anyone at "tech support" to know what they are
I guess because I was bored I contact a mfg's tech support and asked
them the same question about six or eight times.
I got (at random it seemed) one of a total of three different answers.
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