funky problems with my HIS as well
I got my card around the end of january and i noticed two things:
1) the fan ALWAYS rotated at 40% no matter what the load was so as soon as i started playing a #D game, temperatures started climbing like crazy and a few minutes later the screen "blinked" then froze for 3 seconds and then went black. Only way out of it was to do acold reset.
2) i had a funny squaeking- sputtering noise coming out of my headspeakers-megaphones ( no matter which i used..) but only on my "main system", as i tested this card on 4 diferent AGP systems ( yes i have 6 PCs in my house and no i dont live in an internet cafe
)
i fixed the first probem by runing ATT or AT or Riva, and setting by hand the fan to go faster and faster as temperatures rose... this seemed to fix the crashing problem but not the sound problem. Add to that that i didnt really use a "heavy weight " game to stress the system, i mostly run Eve-online ( best MMORG out there for the hardcore gamer..), also ATT artifact tester for like 15 minutes or so.. and a few cycles of the PCmark 2005. i got a couple of crashes in like 100 tests so i didnt bother too much.
theni had to leave for work aborad for 25 or so, .....the CPc didnt work at all during this time )
so i came back , installed oblivion...and problems started....
the squeaking noise was back, changing in pitch as the ssytem load changed or following a similar rhythm to the spiingn o fa hard disk or the reviing of the CPU fan. WEIRD OR WHAT???
add to that. ....3 days ago i started having crashes playing oblivion... say after.. playing for 15-20 minutes or so.
checked with ATT renderer.. the same thing, as soon as the temperature went to around 50-51c BINGO,,,, the screen "blinked" then froze then i had a black monitor to look at.
i put the card back in my secondary system..it crashed there as well, but after 25-30 minutes... ANd there was no squeaking noise.. or to be exact it was but just audible i had to raise the volume to 100% to take notice of it.
this is strange as my main PC has a better PSU and better airflow and temperatures in the main PC were a bit lower as well. ( by 1-2C.)
so i grabbed a friends 7800GS AGP card ( most powerfull AGP card i could find..) , put it in my main PC and it worked like a charm. bah...
my main PC has an ASUS P4C-800E-Deluxe mobo, with a 3 GHz P4, 1.5 Gb ram, 4 disks and an enermax 465W PSU, that has a 36A 12V rail that should be more than enough to feed this card. The 12V line is stable at 11.96 at idle and get down to 11.88 at full load ( i think that is acceptable??? )
my secondary PC has a crappy mobo , a 3200+ Athlon XP, 768MB of memmory, 2 disks, and a mediocre 400 W chieftec PSU....and the card seesm to run better in that one... FUNKY or what?
so what are my findings:
the HIs card is borked and wont work at stock speeds.
The manufacturing seems ok, i can see no gaps between memmory chips and thermal pads connecting them to the heat sinks.
The fan get a bit loud for my taste unlike the various testing sites that praised the card for a "silent factory overclock".
The card crashes under heavy load, more now than when i bought it... anytime it goes over 51C it hardlocks, usuallyy the moment it locks conicdes with a change in the fan speed ( dont ask my why, but it alwasy locks as the fan revs up from 73 to 82 or from 82 to 91%)
if i put the fan at 100% all the time ( VEEEERY LOUD) it takes a bit longer to crash but eventually it does so.
aftermath.
After reading a post above ...i lowered the GPU clock to 600 and the card has been runiing the ATT renderer for 2 hours now, temperature is at 59c and the card seems to be rock steady.. i'll post this and try to run oblivion to see what happens
EDIT
ok, after 4 hours with my card slightly underclocked oblivion didnt crash not even once....
I'll see how this goes.. the only problem is the squeaky noise is sort of back!! if i can fix that I'll keep the card as the stories about RMA i'm reading here are horendous .....