Sapphire graphics useless user manuals

I have a PC with Sapphire HD4980 therein.
When you switch it on, you hear one beep (meaning normal).
However, several seconds later, another beep. It seems to be in a
reboot loop.
Nothing appears on monitor. I open case, and see a red LED flashing
on the Sapphire card. There are 3 LEDS just numbered 601, 602, 602.
So off to their website to download manual.
It is just a generic AMD 4800 series document. Are Sapphire too
bloody lazy to create their own?
Anyway, after about 15 minutes searching forums, I learn that one
LED means overheating, and others mean the extra 6-pin power supplies
are not plugged in. They are, so probably power supply is knackered.
It tests OK no load, but probably falters feeding the monster.

On 5/31/2015 5:01 AM, wrote:
I have a PC with Sapphire HD4980 therein.
When you switch it on, you hear one beep (meaning normal).
However, several seconds later, another beep. It seems to be in a
reboot loop.
Nothing appears on monitor. I open case, and see a red LED flashing
on the Sapphire card. There are 3 LEDS just numbered 601, 602, 602.
So off to their website to download manual.
It is just a generic AMD 4800 series document. Are Sapphire too
bloody lazy to create their own?
Anyway, after about 15 minutes searching forums, I learn that one
LED means overheating, and others mean the extra 6-pin power supplies
are not plugged in. They are, so probably power supply is knackered.
It tests OK no load, but probably falters feeding the monster.

Have you tried Google? I just noticed a multitude of threads to read
about that card. I would think who needs a manual?

HTH.

Al

wrote:
I have a PC with Sapphire HD4980 therein.
When you switch it on, you hear one beep (meaning normal).
However, several seconds later, another beep. It seems to be in a
reboot loop.
Nothing appears on monitor. I open case, and see a red LED flashing
on the Sapphire card. There are 3 LEDS just numbered 601, 602, 602.
So off to their website to download manual.
It is just a generic AMD 4800 series document. Are Sapphire too
bloody lazy to create their own?
Anyway, after about 15 minutes searching forums, I learn that one
LED means overheating, and others mean the extra 6-pin power supplies
are not plugged in. They are, so probably power supply is knackered.
It tests OK no load, but probably falters feeding the monster.


VAPOR-X HD 4890

http://www.sapphiretech.com/presenta...n=&lid=1&leg=0

Yes, there are no documents with any technical information.

The device is cooled by a vapor chamber, rather than just a heatpipe
solution. An article I was reading, suggests a relatively inconvenient
vacuum inside the chamber. And that means, if the vacuum ever fails,
it would drive up the boiling point of the fluid, and make the
chamber much less efficient at distributing heat.

Both heatpipes and vapor chambers have to remained sealed
for their entire service life. And the vapor chamber has
much larger seams and so on.

You would also want to keep the fin stack on such a card
clean, if it happens to collect a lot of dust.

*******

There are two possibilities for the 2x3 cable sensing LEDs.
They could be a simple "ground sense" setup, in which case
they don't actually detect whether the 12V level is proper or not.
You can set up the LEDs, so they just detect the cable
is plugged in, and that ground is present on a particular
pin.

You can also set up the connector, so that the 12V level is
sensed, and if out of spec, light up the LED. Which would
take a window comparator and a few resistors for a
voltage reference for thresholding. But that would costs a few
more pennies to include as a feature, and simple "ground sense
coming from cable" is the more likely thing driving
the LEDs.

I guess time will tell, whether it's the PSU at fault or not.
If changing the PSU doesn't fix it, then it could be some
problem with the video card itself.

For failures of this type, you need to switch off power at
the back of the computer for at least 30 seconds, then switch on,
then push the button on the front again. That's in case any
circuits are using foldback limiting. Turning off all power,
helps them "forget" the failure for another test run. Waiting
30 seconds is to make sure the +5VSB drains fully.

Paul