where is the ambient temp sensor on 6800U, and what temps?

[black_b[ ]x]

Just curious where the sensor for this is located. I've seen an ambient as high as 42C in a steady state stress test (using the Far Cry Sandbox editor, runs nicely in a resizable window). Highest core temp has been 70C I think, this is with a modified maze4 block and the stock heatsink (with no fan) for the memory, but a decent airflow against it.

 

[pxc]

I didn't check when I installed the vga silencer 5, but from the way ambient rises (on the card, less on the motherboard) when the card is in use I'd guess it's near the GPU/fan or power supply section of the card.

If you're only seeing a maximum of 42C ambient temperature on your card, you must have a very cool case ambient temperature.

 

[black_b[ ]x]

I just recently added some cardboard ducting from a fan to push more air onto my northbridge, that Really helped. I'll have to take a pic, its quite ugly (cut up dr. pepper box, masking and duct tape ), but works great. After about 15 minutes of running the rthdribl demo (windowed to roughly 1000x875, 8x multi, getting 18-20fps), I'm at 28C case, 43 CPU, 43 GPU_ambient, 72 GPU_core. Its been steady there for a few minutes, so i think with adequate room ventilation (75F roughly) that should be my steady state at full load.

case is a coolermaster stacker, i have a thread in the WC forum with a few pics. Dual 120's on the heatercore are pointed up from the bottom of the case, conveniently hitting the vid. card. Stock ramsink (a few fins removed) and a modified maze4 for cooling.

On a side note, the rthdribl demo is simply amazing.