Message boards : Graphics cards (GPUs) : Accelero Hybrid
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What do you think of this Accelero Hybrid? I'm thinking in giving it a try. Not a cheap toy (~120€)! | |
ID: 34533 | Rating: 0 | rate: / Reply Quote | |
Looks good. Anything that takes the heat out of the box should help. As it's expensive (~£100) I would only use it on a really big card though (780 or higher); you are more likely to see cooling improvements on the more power hungry cards anyway. | |
ID: 34534 | Rating: 0 | rate: / Reply Quote | |
The screw heads on the bottom of the waterblock suggest to me that there is a gasket between the bottom of the waterblock and the top. That gasket (if there actually is one) is guaranteed to leak at some point in the future. Guaranteed! It might even need to be replaced. Will there be replacement parts available when you need one? Are you willing to make a new gasket if you cannot buy one? | |
ID: 34538 | Rating: 0 | rate: / Reply Quote | |
That gasket (if there actually is one) is guaranteed to leak at some point in the future. Guaranteed! I don't understand you. You have a closer look at 8:55. But the pump is inside there! http://www.youtube.com/watch?v=5SGTg9YIGvo With water cooling you always have the option of extending the hoses and putting the radiator plus the fan outdoors. I don't think you can with this cooler, seeing the way the hoses are hooked and that the pump is included in the cooler. This is the main feature of this desing is all one packet. Compared with Accelero Xtreme III 35.3 dBA vs 36 dBA 46 °C vs 47.6 °C. 2 vs 3 slots True about 24ºC ambient, but this is Spain!! Here gets REALLY hot in summer, little can be done there. but as skgiven said, the advantage is that it blows hot air outside, and seems a little smaller. Difference in price is 50 €. @skgiven Yes, I'm thinking on an upgrade, that's why I'm seeking a few possibilities, and maybe go for a second rig. Max. Cooling Capacity of this design is 320 Watts | |
ID: 34542 | Rating: 0 | rate: / Reply Quote | |
That gasket (if there actually is one) is guaranteed to leak at some point in the future. Guaranteed! Waterblocks have cooling fins inside. The only way they can make those fins is to make the block in 2 pieces then join the 2 pieces during assembly. There are only 2 practical ways to seal the joint between the 2 pieces: weld them together or screw them together. If they use screws then there must be a gasket. I see screws in the bottom of the waterblock so I suspect the 2 pieces are held together by screws, not welded. Now that you remind me the pump is inside there I can almost guarantee the waterblock is 2 pieces. The vibration of the pump will cause the gasket to shrink even faster. Sooner or later that gasket will leak and you'll have to fix it. I guarantee that will happen. If you cannot understand that then please let me know which words or phrases you don't understand and I will try to clarify. With water cooling you always have the option of extending the hoses and putting the radiator plus the fan outdoors. You can cut the hoses and add more hose to make them longer. True about 24ºC ambient, but this is Spain!! Here gets REALLY hot in summer, little can be done there. True but then the heat is in the room which raises the ambient even higher. Higher ambient means louder fan and pump. If it's too loud for you then how do you plan to deal with that? Do you have AC (air conditioning) in the computer room? Will you stop crunching with the GPU in the summer? If you have to put a portable AC unit in the window, will you be able to stand the noise it makes and the electricity it requires? I ask these questions because as you said it's not a cheap toy. It is a good idea to ask questions now and decide if it's going to work for you and decide how you will deal with it if it does not work the way you expect it to. ____________ BOINC <<--- credit whores, pedants, alien hunters | |
ID: 34543 | Rating: 0 | rate: / Reply Quote | |
Thanks very much for your explanation, really interesting thoughts!! You can cut the hoses and add more hose to make them longer. I wouldn't do this, as the design is so compact I don't think it is designed to extend the resistance of a longuer hose. Higher ambient means louder fan and pump. dB specs are at Full Load. Anyway I found somebody that is lending me a sound meter. I find quite difficult to know how unpleasant/noisy are 35 dB vs 36 dB or 40 dB. The scale is logaritmic, but I don't know how much logaritmic are my ears :P | |
ID: 34545 | Rating: 0 | rate: / Reply Quote | |
I find quite difficult to know how unpleasant/noisy are 35 dB vs 36 dB or 40 dB. The scale is logaritmic, but I don't know how much logaritmic are my ears :P Your ears (as everybody else's) are logarithmic. The main drawback of water cooling is that the water pump is hidden, so you won't see its status. You'll know that it stopped only when it's too late - it fried your GPU. In this design the water also hidden (the hoses are black), the tank (reservoir) is probably small and integrated into the radiator - so you won't see the level of the coolant. This is a very dangerous design for 24/7 crunching. | |
ID: 34546 | Rating: 0 | rate: / Reply Quote | |
Another thing I don't like about their system is that the radiator is aluminum and the cold plate is copper. That will create a Galvanic reaction which will corrode either the cold plate or the radiator and create a leak. Thanks very much for your explanation, really interesting thoughts!! Good point but if you can put the computer in a place where you have to add only 1 metre of hose it will still work. Another option... There are a number of waterblocks on the market rated for 320 watts. You can buy one and make your own backing plate and mount system very easily. Then buy a radiator, fan, pump, reservoir, coolant, hose, connectors and clamps and build your own. Get a big, powerful, noisy pump for cheap and put it, the radiator and the fan outside. That would be a very quiet system. If the pump and radiator are big enough you could also cool the CPU and eliminate the CPU fan. Then all you have left is the PSU fan. Higher ambient means louder fan and pump. By "full load" they mean the GPU is running at 100%. They ran the GPU at 100% load in 23C ambient. Does your computer room stay at 23C all year, even in the hot summer? If your computer room goes above 23C then the pump and/or fan will have to run faster (to maintain the target temperature) and will make more noise. Anyway I found somebody that is lending me a sound meter. I find quite difficult to know how unpleasant/noisy are 35 dB vs 36 dB or 40 dB. The scale is logaritmic, but I don't know how much logaritmic are my ears :P What is the point of that when you haven't even estimated how loud the system will be in the conditions you will subject it to? If you don't have AC to keep the ambient at 23C then I don't think it will run at the sound level they give in the test results during a Spanish summer. ____________ BOINC <<--- credit whores, pedants, alien hunters | |
ID: 34547 | Rating: 0 | rate: / Reply Quote | |
The main drawback of water cooling is that the water pump is hidden, so you won't see its status. You'll know that it stopped only when it's too late - it fried your GPU. In this design the water also hidden (the hoses are black), the tank (reservoir) is probably small and integrated into the radiator - so you won't see the level of the coolant. This is a very dangerous design for 24/7 crunching. Very good point. Air cooling is far simpler than any water cooling system and less prone to failure. Still I don't trust it and I don't trust the GPU's thermal protection either which is why my gpu_d script monitors the GPU temp and if it rises 5C degrees above the target temp and stays there for more than a few secs it tells BOINC client to suspend crunching. If the temp doesn't drop down to target temp with crunching suspended it shutsdown the computer and logs the event. ____________ BOINC <<--- credit whores, pedants, alien hunters | |
ID: 34548 | Rating: 0 | rate: / Reply Quote | |
Hello: What you say is true but not valid for this case, the tubes that connect the head-pump with the radiator are plastic and the liquid used is non-conductive type, is so general in this type of cooling system, whereby there can be no galvanic corrosion. Personally I am using for my CPU from over two years ago with no problems and great performance. | |
ID: 34549 | Rating: 0 | rate: / Reply Quote | |
Personally I am using for my CPU from over two years ago with no problems and great performance. The short story of my water cooling adventure: I've bought my i7-980X with a Corsair H80 (similar design compact water cooling). Both were used parts from the same system, I saw them working fine together, the CPU temp was around 55°C under full load at 4GHz. I took it out from the working system, a day later I've installed it to my system, and it almost fried my CPU. The pump was stuck, and there was some air in the (in theory) closed water circuit. I've RMAd it, and sold the replacement one - which is working fine since then. | |
ID: 34550 | Rating: 0 | rate: / Reply Quote | |
I have an Alienware with a liquid cooler on the CPU and that ran fine. The noise is normal to a fan cooler as the radiator has a fan and that one is mounted at the back of the case. Other computers have a 120 or 140 mm fan there to blow out air from the entire case. The Alienware is missing that. | |
ID: 34561 | Rating: 0 | rate: / Reply Quote | |
Instead of bending the hoses you should use elbows which are metal fittings that have 90 degree or 45 degree angle. When you bend a hose it pinches shut and restricts the flow. | |
ID: 34563 | Rating: 0 | rate: / Reply Quote | |
Assembling that Accelero cooler doesn't look particularly handy. | |
ID: 34572 | Rating: 0 | rate: / Reply Quote | |
However at full load (i7 960) temperature goes to 68-70°. Anyhow after three year the temperatures went to 75-80°C. Seems like I really made a good choice with my CPU cooler: bought a "Thermal Ultra Extreme 120" for ~50€, if I remember correctly, around mid 2000 together with a Q6600 when they first became available (it was probably 2006). I have used this cooler on my Sandy and now Ivy Bridge. Wouldn't mind if it's going to fit a Broadwell K sometime in Q3 :) MrS ____________ Scanning for our furry friends since Jan 2002 | |
ID: 34816 | Rating: 0 | rate: / Reply Quote | |
Message boards : Graphics cards (GPUs) : Accelero Hybrid