Great video, MarshallR - I like it! 😄
I'm a fan of this DirectCu system, however I do have questions regarding it... hope this is a right place to ask about it...
Why the heatsink fins are oriented transversally on the card? Did Asus try to rotate them to be parallel with the longitudinal axis of the card?
The reason why I'm asking is that with the present setup, the hot air leaving the fins basically is exhausted mostly on the side of the graphic card - thus remaining inside the case... So, the great thermal solution will be really effective only on the test benches (where the hot air can leave freely) or in some cases with good airflow and possibility of lateral exhaust. Otherwise, the hot air produced by the graphic cards is raising in the case reducing the efficiency of other coolings (NB, CPU, VRM and/or radiators above).
Would a longitudinal arrangement of the fins decrease the cooling efficiency? I'm thinking here that the air from the memory/VRM part of the card would go across the GPU part... Since the real beasts of the Asus graphic cards are 3 slot designs anyway, would there be enough space to place the fins longitudinally and have more air exhausted on the back of the card/case?
I'm a fan of this DirectCu system, however I do have questions regarding it... hope this is a right place to ask about it...
Why the heatsink fins are oriented transversally on the card? Did Asus try to rotate them to be parallel with the longitudinal axis of the card?
The reason why I'm asking is that with the present setup, the hot air leaving the fins basically is exhausted mostly on the side of the graphic card - thus remaining inside the case... So, the great thermal solution will be really effective only on the test benches (where the hot air can leave freely) or in some cases with good airflow and possibility of lateral exhaust. Otherwise, the hot air produced by the graphic cards is raising in the case reducing the efficiency of other coolings (NB, CPU, VRM and/or radiators above).
Would a longitudinal arrangement of the fins decrease the cooling efficiency? I'm thinking here that the air from the memory/VRM part of the card would go across the GPU part... Since the real beasts of the Asus graphic cards are 3 slot designs anyway, would there be enough space to place the fins longitudinally and have more air exhausted on the back of the card/case?
MarshallR@ASUS wrote:
I know what you mean but the hot air is spewed out everywhere with some force. And with most gamer cases having exhausts in the roof/behind the CPU it all gets sucked out pretty quickly. We've never had reports from media - who do test in cases - about significantly increased temperatures versus stock cards that exhaust from the case.The fact is most of these cards have FULL rear panels of 6 connectors now, leaving little to no space for exhaust ports anyway. Also, longitudinal wouldn't be feasible as the heatpipes have to interact at 90 degrees, so you'd have longer heatpipes reducing their efficiency. Because of the spacial limitations, it's always a tradeoff somewhere.
Thanks, MarshallR!
I know, there're engineering things to be kept in mind... However, it's strange that "We've never had reports from media - who do test in cases - about significantly increased temperatures versus stock cards that exhaust from the case."... - maybe they were focusing on the individual graphic card temps... i didn't see comparison of whole system's temps with different cards...
xeromist: I think too, it's time! 🙂 Depending on your case (possibility to mount single or multiple side panel fans and the overall airflow) it would worth to experiment different setups - intake(s) vs exhaust(s). I found that in the with those cards which exhausts mostly inside the case, sometimes is better to set up the side fans as exhausts - if there is enough intake from bottom and front...
