what i have got here is a complicated story which involves two radeon all in wonders, couple of pcs, one zalman nb32j, hours of troubleshooting and one rain dance.
warning this is a long post. i tried to put in much detail and background info which i though relevant. please read carefully and torough. i put a short summary at the bottom for the lazy readers. but you really should read the details to get a real idea of the problem.
first let me give you an introduction to get to my main question, which is more spcr related.
1. i have an ati radeon 9700 all in wonder. everything working fine (tv tuner and all), but very loud.
2. the user doesn't play games so doesn't need all that 9700 power. idea: get a 9000 aiw and mod passive.
3. got a radeon 9000 aiw. quick test to see wether it's working, put in pc, monitor shows image -> card is working
4. ripped of heatsink fan. slap on zalman nb32j. put in pc, monitor shows image -> card is still working
5. did happy camper rain dance
now to the (spcr related) problem:
the radeon 9000 aiw is in the pc. the tv cable is plugged in the card. when i turn the pc on, the tv image (the real tv) will get noise and other artifacts (not audible noise but noise on the image like little white dots and warping lines scrolling up and down). turn the pc off and the noise on the tv is gone. this wasn't so with the 9700 aiw.
a little background information on my tv cable setup
i have one tv cable jack in the wall. from there the cable is split to the tv (the real tv), the tv tuner (ati radeon aiw), and to some radios in other rooms. the tv and the radeon 9700 aiw got crystal clear images and the radios got crisp sound. no noise, no buzz.
and the question:
is it possible that the zalman nb32j is disturbing the tv tuner on the 9000 aiw and causes the tv tuner to give noise feedback to the cable?
i have read once in spcr that someone put an zalman zm80a on a radeon 9700 aiw and it allegedly worked fine. i thought when a zm80a doesn't disturb the tv tuner noise how can a tiny nb32j?
this concludes my spcr related question thank you for reading so far
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now follows another problem which is a bit more puzzling and abysmal (you have been warned). it is (i hope) unrelated to the noise problem.
guess i'll start with another intro which is now a little broader in scope
in chronological order (the time elapsed between each step is irregular)
1. radeon 9700 aiw working fine, but loud
2. bought radeon 9000 aiw (just bought, not installed, it was sitting idle in a corner in my room)
3. the ati mmc suddenly refused to show tv image or record from tv tuner. it only offered s-video and composite as input. it was acting as if the card got no tv tuner (this is still with the 9700)
> assumption: drivers are fubar
4. lots of driver reinstalls, different driver versions from the cd and from ati homepage, all to no avail. the ati mmc (multimedia center) software in all versions refuses to recognize the tv tuner.
> assumption: windows is fubar (with different drivers and stuff)
5. format harddisk, install windows 2000 with service pack 4 and directx 9. then install newest drivers downloaded from ati homepage. nothing, mmc still refuses to recognize the tv tuner.
> note: the card is properly recognized as an all in wonder, tv tuner and lots of other stuffs are properly recognized and drivered. the hardware manager showed no exclamation marks.
> assumption: the tv tuner is somehow damaged although the card is still working fine?
6. frustated
7. put in radeon 9000 aiw (already with passive mod). fresh windows install, install ati drivers, aaannd ... nothing!!! still no tv tuner!
> assumption: the tv tuner is somehow damaged although the card is still working fine? on both cards?? at the same time????
> note: it _IS_ possible that _I_ damaged the 9000 aiw while doing the passive mod. but it would have too much a coincidence that the 9700 got the exact same symptoms at the same time.
> note: it is also possible that the tv tuner on the 9000 was DOA already since i never tested the tv tuner before i did the mod, i thought when the pc boots up and monitor shows image the card is working fine.
8. confused. prayers and oblation to some random spirits.
> assumption: the pc suddenly doesn't like the radeon aiws somehow.
9. put the radeon 9000 aiw in another pc, fresh windows install, fresh driver install, and... still no tv tuner. i tried several different combinations and order of install of the drivers. nothing. i couldn't test the 9700 aiw on this pc because the mainboard refused to boot with the 9700.
i am now completely stumped. i have two ati radeon all in wonders on two different pcs with several drivers but all refuse to recognize the tv tuner. err... help?
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short summary, here are my two questions again
is it possible that the zalman nb32j is disturbing the tv tuner on the 9000 aiw and causes the tv tuner to give noise feedback to the cable?
is it possible that on two different radeon aiws (one 9000 and one 9700) the tv tuner component goes defect, with the rest of the card still working fine, with the exact same symptoms on both cards, at the same time?
well okay the second question wasn't actually asked before but it is still a valid question
the real second question would rather be: are my two aiws cursed? ^_^;