I got this graphics card in my PC and the picture on the monitor displays red dots and lines and sometimes goes away but returns again. I had to disable the driver for this card as Windows XP wont boot in normal mode ie shows a black screen but in safe mode XP boots but with red spots and lines and the picture goes purple if you try to browse on the internet. Is there any tests I can do with a multimeter? Or maybe get hold of a circuit diagram?
Jack00 wrote in news:abc1b9d1-0cd1-4a6c-9727- snipped-for-privacy@a7g2000yqd.googlegroups.com:
BUY A NEW ONE ?
On Wed, 26 Oct 2011 13:45:08 -0700 (PDT), Jack00 put finger to keyboard and composed:
Those symptoms are consistent with a fault in the card's RAM. By switching to a different driver, you are accessing difference areas of memory. Also, if you select a lower refresh rate, this may mitigate any timing issue.
Did you check the fan and capacitors on the card?
- Franc Zabkar
-- Please remove one 'i' from my address when replying by email.
I did check the capacitors and some were high with a capacitor meter so I replaced them and the card worked for a few days but the symptoms returned again. The power supply voltages going to the card seem normal. Are there any tests I can do on the card?
On Fri, 28 Oct 2011 07:45:52 -0700 (PDT), Jack00 put finger to keyboard and composed:
I suspect that the card manufacturers would have their own diagnostics, but I haven't seen anything like this on the Internet. I don't know what you could do except to narrow down the fault with a hair dryer and spray freezer. I would also choose the lowest possible refresh rate in the properties for your card.
The only other thing I can think of, if you really are desperate to save this card, would be to reduce its capacity from 256MB to 128MB, assuming of course that yours is the former.
- Franc Zabkar
-- Please remove one 'i' from my address when replying by email.
A last resort might be trying insulated jaw soft clamp over , in sequence, some of the chippery in case of poor SMD/BGA solder somewhere. If that improves things then maybe some sort of dedicated clamp , assuming resoldering is out of the question
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.