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Sapphire R9 290 4GB TRI-X OC Review Comment Thread

xentr_thread_starter
Also of note Sky, the beaver listed in the review is the Movember beaver. Not sure if its the same on all articles.
Click to expand...

It's on all the articles. Lazy programmer....
 
Actually I just realized something. If VRM maxes out at 73C, that means it probably maxes out at 85C during mining? When I ran Folding@Home, core temperatures were within acceptable levels at around 80C I think. With mining, I was hitting the temperature limit, causing the card to throttle.
 
geokilla said:
Actually I just realized something. If VRM maxes out at 73C, that means it probably maxes out at 85C during mining? When I ran Folding@Home, core temperatures were within acceptable levels at around 80C I think. With mining, I was hitting the temperature limit, causing the card to throttle.
Click to expand...

VRM's can probably hit 120C+ before issues start to happen, they're usually hotter than the core (due to bad cooling).
 
xentr_thread_starter
True. VRM temperatures will only cause throttling on R9 290-series cards when they hit 105°C.

You were likely running into the power limiter.
 
SKYMTL said:
True. VRM temperatures will only cause throttling on R9 290-series cards when they hit 105°C.

You were likely running into the power limiter.
Click to expand...
Nope. I was running into thermal limits. Though this is on my XFX 7950, with the crappy DD coolers that you guys reviewed, not the new R9 290 GPUs.

Lower is better though because the components last longer and run cooler and more efficient no? That's what all the miners are saying, and I agree with that.
 
xentr_thread_starter
Sure, cooler is always better but on components that are rated to their MTBF at 120°, running at 100° doesn't make all that much difference when we're talking about an MTBF of 60K to 100K hours.
 
Hi all,

Im a little confused by the stated dimensions on this card. Many places have its length down as 305mm or 12 inches, but I note in the review they mention it is 11 n 3/4 inches long. The difference is a bit critical to me.

My currrent case is the CoolerMaster 690 II Advanced (purchased after seeing the video review by Canucks !) and the space for a card is pretty tight to 12 inches. Is the difference in the quoted lengths to do with the metal bracket ? If the card is 12inches from the tip of the bracket to the end of the card Ill probably be ok. If its 12 inches from the inner edge of the bracket (essentially from the start of the PCB) to the end then I might not be able to jam this baby in :(

I know there are shorter R 290s out there but at the moment all decent R9s are hard to get hold of (I live in Spain) and I have an opportunity to get a Tri-X which in all fairness seems to offer one of the best cooling solutions anyway.

Any thoughts ?

Paul
 
xentr_thread_starter
I have the card right in front of me. It is exactly 11 13/16" long which is 302mm.
 
SKYMTL

Thanks dude - I guess Ill just be about safe ... but I think you missed my point just a tiny bit ... when people quote lengths - is that from like the extreme end of the bracket to the end , or do they just measure the "card" portion ? Sorry to be a pain !

Paul
 
xentr_thread_starter
I measure from the outside bracket to the end. HOWEVER, there is no way to accurately determine lengths down to one millimeter. The reason for this is simple: many brackets I've seen can be slightly bowed. This has the effect of pushing the PCB "backwards" so it actually takes up a few more millimeters.

If I were you, I would budget +/- 3mm of possible variance. Anything more than that, go with a shorter version like XFX's DD.
 
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