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AMD Radeon R9 295X2 Owners Thread

Well with my case being a 750d hopefully the intakes at the front tame it :) Hardocp seemed impressed enough with it, according to them it was virtually silent. Though I do remember the same song and dance from reviews about the 7990.

http://www.hardocp.com/article/2014/04/08/amd_radeon_r9_295x2_video_card_review/12#.VBnBhOktDiI

Yeah several reviews called the 7990 silent lol. It wasn't as loud as my 290 crossfire but it was pretty loud.
I never had the temperature problems some people have though.
 
YOUR BASKET
1 x Corsair SP120 Quiet Series High Pressure Low Noise - Single Pack (CO-9050005-WW) £11.99
Total : £15.90 (includes shipping : £3.26).



Bought this to go with my builds scheme and I like a quiet running system (i.e quiet series), but I have had to make another purchase for a high performance fan. Honestly I am scared because the stock fan was loud already.

YOUR BASKET
1 x Corsair SP120 Performance Series High Pressure - Single Pack (CO-9050007-WW) £11.99
Total : £15.90 (includes shipping : £3.26).

 
The SP120 fans are not quiet, is 35db fan.
Piranhas are at 27.2db and to get them to the same noise level as the stock fan needs to be at 75%-80% speed.

Anyhow.

My advice is do what ever it takes to make the card run cool. The cooler the card works the better the performance, before overclocks etc.

Here is my result for running the card with -75mV 50% PL at 1018/1625 (stock core). Still stock fan blowing cold air on the rad. (just took the bench).

Max temps while benching above 59/54. Normal idle tempts 33/29.
00014_zpsd500eada.png

Here is the card while at 0mV 50% PL at 1030/1625 with the fan case air on the rad.
00004_zps1b793449.png

That is 700 points hit.


Again here is the card with +10mV 50% PL at 1135/1625 with the fan blowing warm air (one of the first runs I had with the card) and at the wrong position the radiator.
00003_zps7df1f9df.png

Here is similar overclock with 0mV 50% at 1135/1625 with the fan blowing cold air on the rad, and at the correct position.

00013_zps019797e3.png
 
Bought this to go with my builds scheme and I like a quiet running system (i.e quiet series), but I have had to make another purchase for a high performance fan. Honestly I am scared because the stock fan was loud already.

Maybe you could try to put a Piranha to blow cold air on the rad? It will be hidden and behind the rad at all time. Is shame their price is back again.

Like here
http://forums.overclockers.co.uk/showpost.php?p=26910221&postcount=401
 
The quiet series are "Sound Level: 23 dBA" but there just not good enough so I purchased the performance edition which will be as loud as the stock.
 
Something for anyone running benches on their cards that a lot of the guys on these forums do.

For Unigine benches (Heaven 4 and Valley) Win7 works best.

For Futuremark benches Win8.1 often comes out on top.

The reason I have posted the above is for anyone who is comparing scores, this could be the reason for a difference.:)
 
Can you use a Fan Splitter in the fan connector on the R9 295x2? So you can have push/pull controlled by the GPU.
 
Just fitted my replacement GPU, and got exactly the same problem, namely zero video output regardless of power cable configuration. While I'm quite willing to accept that the PSU could be at fault, it does make me wonder what OCUKs testing process was, or did they just ship a replacement without testing? Not sure what to think now :/

PSU is a Corsair HX1000W, btw.
 
The HX1000 has combined 80A (2 x 40A 12V rails) according to the specs, by comparison the HX1050 has 1x87.5A 12V rail.

According to AMD specs for the 295X2:

28 A of current to each of the 8-pin auxiliary
power connectors on your graphics card
50 A of combined current to the pair of 8-pin
auxiliary power connectors

Is there a way to ensure each 8pin is on a separate rail and not both on the same?


Surely it should still boot though regardless?
 
According the specs for the PSU, it has enough amp and volts on each rail to work. On paper it looks right, but from reading elsewhere in addition to this thread this card has issues with some psus that appear to meet the spec.
 
The HX1000 has combined 80A (2 x 40A 12V rails) according to the specs, by comparison the HX1050 has 1x87.5A 12V rail.

According to AMD specs for the 295X2:

28 A of current to each of the 8-pin auxiliary
power connectors on your graphics card
50 A of combined current to the pair of 8-pin
auxiliary power connectors

Is there a way to ensure each 8pin is on a separate rail and not both on the same?


Surely it should still boot though regardless?


It boots, and I can use the on board video to get to windows with the Radeon powered up, lights and fans ok etc. Just can't get any video whatsoever out of that card.

Just to reiterate, I've tried every possible combination of cabling from the psu.
 
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