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r9 290 + Accelero hybrid help

superfrankee

superfrankee

superfrankee

Associate
Joined
21 Nov 2013
Posts
6
So yesterday i jumped the gun and bought a Sapphire r9 290 and an Accelero Hybrid.
I then spend the most of the day fitting the Hybrid onto my r9 290 with high hopes of better temps and low noise.
However this is not the case only for the latter

First of all my case is a bitfenix prodigy with a 140mm intake fan in the back, in the top a h100 radiator with 2x120mm as exhaust and then the hybrid radiator in the front as intake with 2x120mm in push/pull.
Im running an OC of 1100mhz core and 1400mhz on memory.
The gpu core is hitting 90-94 after a 15-20min of unigine heaven/valley and after 30mins of Black Ops 2 gaming it hits 80+
One of my vram temps is also around 85-90 when running 15mins of unigine heaven/valley.
These temps seems no better than the stock cooler and from what i've seen ppl with the accelero xtreme 3 cooler and the r9 290 have gotten a lot better temps.

Now i know that its a small case and the airflow is far from good but is it really that bad?
Or can i have made a mistake when i applied the thermal paste to the gpu core? or might the pump have been fitted too tight or too lose?
Also does the fact that the tubes, running from the pump to the rad, are really cramped due to lack of space from the end of the gpu to where the rad is placed in the front of my case, have anything to say about temps?
And could i have done something wrong in applying the vram heatsinks since im seeing such a high vram temp?
It also doesnt seem that changing the fan speed of the two 120mm fans on the rad does much about the temps, which i cannot understand..

I hope some of you might be able to help me out
 
That's not right at all...

I would take the cooler back off, clean off the thermal paste and try again with a smaller amount.

Then I would allow the radiator to sit out side the case in the cool ambient air to see what happens.

You got any picture of it?
 
Is the cool air being pushed in by the 140mm rear intake fan getting near the fan on the GPU?

Cool air in lower front and hot air out upper rear is usually the rule of thumb for airflow.
 
almighty15 said:
That's not right at all...

I would take the cooler back off, clean off the thermal paste and try again with a smaller amount.

Then I would allow the radiator to sit out side the case in the cool ambient air to see what happens.

You got any picture of it?
Click to expand...

If its not too late what you need to check is when you take the cooler off check the spread pattern of the thermal paste. You should be able to tell by the spread whether you had good contact or not.
 
So i've done some rearrangement of the fans/rads.
It really took some time as i also had to rearrange a lot of cables and a ssd. And the small case didnt help at all.
I've moved the h100 to the front of the case as intake, the 140mm is still in the back as intake and then the hybrid rad with 2x120 in push pull as exhaust at the top side near the 140mm fan.
After 15mins of Unigine valley the temp sits just around 60° for the core and the vrm temps sits at 64° and 60°..
And the two 120mm fans on the hybrid rad is only at about half speed.
So i dont know if it is worth the time reapplying the TIM? Or should i just leave it be. As it seems to me that the problem was the cramped tubes, maybe also the airflow.

If anyone is interested in pics, benchmarks or anything feel free to ask.
 
I'd leave the card alone for the moment as it sounds like the plumbing and airflow was the problem.

Keep an eye on the temps during a couple of hours of gaming to be sure.
 
I didnt take any pics while fitting it to the r9 290, however my pcb ended up looking exactly like on tomshardware: http://media.bestofmicro.com/O/O/407832/original/AXIII-05.jpg
Just remember there isnt enough vrm heatsinks included in the package so you will have to mod some of the other types of heatsinks or get some extra.
Also there is one of the vrm's that is located below the pump and therefore you have to either do a 50/50 with thermalpads and a smaller heatsink or mod one of the bigger heatsinks by cutting off the fins.
Beside this small mod it is really an easy fit and i had no problems even though its my first time applying an aftermarket cooler to a gpu.
I can take some pics of the hybrid as it is on my gpu in my case tomorrow if anyone is interested.
 
Oh and yea remember that the tubes running from the gpu to the rad has to be fairly straight to get the best cooling results.. That was why i initially had some problems with my temps
 
Im really happy with the cooler. So i can definitely recommend it if you have the time it takes to fit it on the r9 290. Its silent if you just dial down the fan speed of the 80mm fan a bit and then run the included 120mm fan on half speed or something and you can still get really good temps.
I run with 80% fan speed on the 80mm and about half fan speed on the 2x120mm i have in push pull on the rad and i get 60-64 max temp on core after 30mins of unigine valley and thats with an oc of 1100 on core and 1400 on mem.
 
superfrankee said:
Im really happy with the cooler. So i can definitely recommend it if you have the time it takes to fit it on the r9 290. Its silent if you just dial down the fan speed of the 80mm fan a bit and then run the included 120mm fan on half speed or something and you can still get really good temps.
I run with 80% fan speed on the 80mm and about half fan speed on the 2x120mm i have in push pull on the rad and i get 60-64 max temp on core after 30mins of unigine valley and thats with an oc of 1100 on core and 1400 on mem.
Click to expand...

Perfect! Great info thanks. Everything I needed to know:D
 
I cant seem to push mine past 1100 core and 1400 mem. I start getting artifacts at just 1105 core and 1400 mem :(
Does anyone know if there is a bios with unlocked voltage floating around for the r9 290?
 
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