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Ipac slow button response?

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pressthebutton:

Hi guys

I'm having a slow button response with Ipac2 from Ultimarc.
I've tried the Passmark keyboard tester software and there is a small response delay when I press slowly each button.

When I press the buttons rapidly and continuously (either joysticks and buttons) the time to complete all commands is very long.
I can see the buttons being pressed long after I actually gave the command.
Say, in a rapid 15 button pushing sequence I can get as much as a 3 seconds delay.
Just like an audio latency problem, when you record audio via a music keyboard into the pc.

I tried everything I could remember, hdrive formatting, new windows installation, new cables, etc.
Also I did a general wiring test, a notepad test for shorted/stuck buttons and no luck.
Everything seems to be ok from the technical point of view.

I'm starting to run out of ideas.
A fresh point of view would be appreciated.


PB
 

Turnarcades:

Try these:

1) Check the PS/2 or USB cable. Swap if necessary. If using a USB connection, check your USB drivers for conflicts.

2) Check your earths. Any loose or crossed connections will cause problems.

3) Make sure to test it in the Ultimarc layout utility for response times.

4) If it is only highighting the delay in things like MAME (not in notepad etc., try turning triple buffering off. I found this strange effect before I altered my settings, and it went away instantly when I turned TB off.

5) If possible, try another i-pac. If yours is older or second-hand, it may be faulty. No i-pac I've had has been faulty yet, but Andy is cool so will probably swap it if necessary. If the problem persists, it's gotta be a software issue, or your mainboard sockets could be damaged.



protokatie:

What Samshaw said, plus:

(6) Plug in another keyboard into the port you have your Ipac plugged into, and see if the keyboard is also as slow.

EDIT:
Also, you are only using one software product to test this? Try DLing Ghostkey (link is on the ultimarc site). It runs in a DOS box, and you may see that the delays are due to your software... (Just an idea)

TOK:

I'm not familiar with the test software you're using and it would probably show this, but I had the same symptoms as you are describing caused by a stuck button.

It was real bad in my case... Not only did it cause lag in other key presses, I'm running an old P3/933mhz in my bartop cab and it would bog the whole machine down. Initially I thought I had a PC problem.


pressthebutton:

Hi guys thanks for the input!

The Ipac is a brand new ps2.

The passmark keyboard tester was adviced by Andy as the best way to perform the test.

All connections/wiring were tested cautiously with a multimeter. No stuck keys were found by ultimarc notepad Ipac tester.

Here are the new steps I've taken, without any change to the problem:

- new keyboard connected to Ipac.
- unplug Ipac and operate directly with a keyboard.
- tried a different keyboard either in Ipac pass through and direct connection to the mobo, but no changes.
- tried to install win xp pro oem instead of tiny xp, but no luck.
- tried a different mobo with the exact same hardware, but the problem persists. (hardware= PIII 800 mhz socket 370 - via chipset / 512 ram / soundblaster / arcade vga).

When I tested the Ipac on a dual core pc I could not notice the same delay problem found on the PIII mobos. What could be the reason? I'm puzzled!

samshaw,

when you advice to check the earths do you refer to the switch (joystick/button) or the mobo? I'm asking you this because the mobo is not assembled to the chassis/case right now. I was hoping not to use a case inside the cabinet just the mobo, etc.

Where can I access the triple buffer option?


Thanks,

PB





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