Quote from: DeathAndTaxes on April 03, 2012, 07:01:43 PM

Likely means excessive overclock or a card about to fail.

...or (memory) underclock.
Not only am I talking about going below the physical capabilities of the ram chips but some particularly bad core-to-memory clock ratios can erally destabilize the GPUs with symptoms ranging from performance holes, through HW errors, to hard crashes.
I personally believe this rare but repeatable stability loss might be the core reason for AMD imposing the memdiff since the 6xxx generation cards.

I like some of your posts here, Death, especially your touching on the extremely subjective notion of card stability.
How about we formalize (in an informal way Tongue

) and shorten some of your stability thresholds:
#define CIS "crash in seconds" #define CIH "crash in hours" #define CIW "crash in weeks" #define CIM "crash in months" #define CIY "crash in years" //the holy grail of overclocked mining

I've seen the CIS to CIM delta to range from an astounding 8 MHz (that's a great overclock) to the unimpressive 35 MHz (an XFX 6970 that really pissed me off until I understood its finickyness).