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How to tell if youre 8800 GTX has a faulty resistor...

ACESHIGH

ACESHIGH

ACESHIGH

Soldato
Joined
17 Aug 2005
Posts
4,297
didnt see any posts mentioning this (at least in title) ...


http://www.legitreviews.com/article/417/1/

The resistor with the bad value is located on the back of the 8800 GTX graphics card and the resistor is located in the boxed off area shown in the image above in dark blue.

Above is a shot of the original 8800 GTX graphics card that was sent out in the weeks coming up to the public announcement of the GeForce 8800 GTX. The resistor in question is believed to be R520, which just happens to the the code name for ATI's Radeon X1800 core, and we were able to easily locate in the 8800GTX. The original resistor was labeled 68C meaning that it is a 49900 Ohm (49k9) resistor.

On the re-worked graphics cards that LR was sent the day before the launch of the 8800 GTX the board was reworked and the resistor was changed from a 68C to a 40C, which is a 25500 Ohm (25k5) resistor. It seems that by reducing the electrical resistance on this on resistor by half that the 8800 GTX has been found to run stable and the problems that many were seeing on the pre-production cards were solved thanks to changing this one small resistor out with a new one.
Click to expand...
 
Well looking at my card it seems to have a faulty resistor?

doesnt look anything like 40C anyway.

I thought overclockers got all there cards fixed anyway? :mad:
 
I'll go download it again :P

But i only get 70-100fps with this card?

with my x1950xtx i got 100-150fps no problem
 
LMAO
Now watch people complain because they're worried... Problems will appear in peoples heads that arent actually there.
With the bad resistor there was an odd problem, with the odd card. The likely hood of anyone with a old resistor having a problem is very slim. Nvidia fixed it to save the whole 7900 issue happening all over again. You wont get less performance if it is an old one, you wont even notice.
 
well my screen tends to flicker a lot when playing css + it just randomly quits to desktop :/ didn't get this with my x1950xtx
 
i got a E22 instead of 40C resistor

no beeps here, and runs 3dmark 06 fine

will give it a proper workout tomorrow with some games and benchies
 
yep they did. But the resistor on this card doesnt look anything like 40C

the first no. doesnt even look like a four.. more like a backwards C
 
CarlD said:
yep they did. But the resistor on this card doesnt look anything like 40C

the first no. doesnt even look like a four.. more like a backwards C
Click to expand...

probably is a C then, your just reading it upside down.

very easy to read them wrong on SMD since they are so small.

Could be a 39C ?

If the letter is before the number, the value can still be the same, just the tollerance value will be different.

i.e

30A = 200ohm 1%
A08 = 200ohm 2%
A32 = 200ohm 5%

Where A= 1x multiplier
the numbers are given from a table, not a value.

value SMD resistors use 3 (or sometimes 4) numbers.

the first 2 are the significant values, and the 3rd is the multiplier (10 to the power of)
so
022 = 200ohm



So you might have the right value resistor, just have a different code to 40C or even 68C. I guess it all depends what supplier/manufacturer (or repair?).
 
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