J
JERONI.PAUL
Hello
I own an old ATI Radeon 7000 card (labeled RV100 on the board), 64 Mb
of RAM, two monitor outputs and one SVideo that has three significant
problems:
* using recent drivers (catalyst 5.11 for example) the picture freezes
after about a second playing video using overlays, audio continues and
if its window is moved or resized it might update the picture or play a
few frames and freeze again. The player hangs when it is closed and if
overlays are disabled it plays OK. The same happens using a digital TV
capture card (MPEG2).
* using old driver releases like catalyst 3.x or pre-catalyst versions
(the ones that came in its CD) it plays fine with overlays, but
occasionaly freezes the picture for a few seconds and does that
persistently if menus or animations are played at the same time (for
example minimizing or maximizing another Window, the window animation
is frozen at half way together with the video, or WinXP pop-up menu
fade-in sometimes shows a half-brighting menu for these seconds).
* After some random time it'll suddently turn the picture into a mess
of flashing coloured vertical bars. Suspending or restarting the
computer fixes the problem for a while. Its heat sink is not even warm
to the touch.
The fan is running fine. I've tested this card on another computer with
the same sympthoms, it is definitely a problem with this card. I've
identified and measured its 3 power rails, 1,8V, 2,5V and 3,3V, they
seem to stay solid on their values.
I found that the vertical bars problem apparently is some memory chip
leaving the data bus hi-impedance because poking around the databus
lines makes the bars flash or change colour. It is not always the same
chip, which makes me think of some corruption of the memory chip
programmable registers instead of a failing RAM module.
I guess it must be a power supply problem (I mean the onboard
regulators on the ATI card) or filter capacitors. ¿Anyone has seen
that before? I might try paralleling a 100uF capacitor to every supply
rail.
I know it is an old card not worth the effort (before you mention that)
but it is more than I need for my HTPC. It is a nice card because its
two monitor outputs and built-in MPEG-2 acceleration.
Thank you
I own an old ATI Radeon 7000 card (labeled RV100 on the board), 64 Mb
of RAM, two monitor outputs and one SVideo that has three significant
problems:
* using recent drivers (catalyst 5.11 for example) the picture freezes
after about a second playing video using overlays, audio continues and
if its window is moved or resized it might update the picture or play a
few frames and freeze again. The player hangs when it is closed and if
overlays are disabled it plays OK. The same happens using a digital TV
capture card (MPEG2).
* using old driver releases like catalyst 3.x or pre-catalyst versions
(the ones that came in its CD) it plays fine with overlays, but
occasionaly freezes the picture for a few seconds and does that
persistently if menus or animations are played at the same time (for
example minimizing or maximizing another Window, the window animation
is frozen at half way together with the video, or WinXP pop-up menu
fade-in sometimes shows a half-brighting menu for these seconds).
* After some random time it'll suddently turn the picture into a mess
of flashing coloured vertical bars. Suspending or restarting the
computer fixes the problem for a while. Its heat sink is not even warm
to the touch.
The fan is running fine. I've tested this card on another computer with
the same sympthoms, it is definitely a problem with this card. I've
identified and measured its 3 power rails, 1,8V, 2,5V and 3,3V, they
seem to stay solid on their values.
I found that the vertical bars problem apparently is some memory chip
leaving the data bus hi-impedance because poking around the databus
lines makes the bars flash or change colour. It is not always the same
chip, which makes me think of some corruption of the memory chip
programmable registers instead of a failing RAM module.
I guess it must be a power supply problem (I mean the onboard
regulators on the ATI card) or filter capacitors. ¿Anyone has seen
that before? I might try paralleling a 100uF capacitor to every supply
rail.
I know it is an old card not worth the effort (before you mention that)
but it is more than I need for my HTPC. It is a nice card because its
two monitor outputs and built-in MPEG-2 acceleration.
Thank you