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AMD Radeon R9 295X2 Owners Thread

Yeah the last one before it reboots is b6. Ffs... Don't understand. Was running two 7990's until yesterday... So it's deffo not a lack of power...
 
Are you running the latest motherboard bios?

What psu are you using?

Have you tried flicking the bios switch?
 
Antec high current pro. 1200w. Bios is in the last year. Can get into all bios screens... Then as soon as it'd normally post I.e. you see Windows lower you can. Here the system him changes, loses connection then reboots. Yep bios switch flicked and visa versa. Getting cheeses off now. Why does this have to be so compiicated. One card. Plug in. Switch on. Should be simple. There's nothing else to do. Do I need this water block above or below or does it not matter?
 
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Radiator above the GPUs, and the pipes on the bottom end of the radiator ... you don't want any air bubbles where the GPUs are, and that way any bubbles should end up in the least harmful place.

If it's this PSU http://www.bit-tech.net/hardware/psus/2011/07/28/antec-high-current-pro-1200w-review/1 then it should be sufficient (30A on each of the 8 rails - the card needs 28A per PCIe cable and 50A combined) as long as the PCIe cables are on different rails which they already should be?

Please be much more specific on things though, going back and forth just to hear what BIOS version you are running for example is kinda tedious.
 
Yep that's the power supply. Double checked, cleaned case rewired... Etc etc. Running the two separate power cables from the red 12v outputs on the back of the psu. Just double checking bios version. Will edit when done.
 
Computers are like women, it should be simple....never is...that's why you plug in and out and re seat all the bits and if it doesn't work update to newer model... ;)
 
Well, BIos verison is now 2.70 (2/26/2014). this is the latest version and updated finally.

So, currently situation is, I can get into BIOS fine. All settings are same as with the two 7990's. Also tried resetting to defaults, still does same thing.

Basically I'll reboot... gets past the BIOS and RAID screen, then cursor top left of screen like it's trying to find the HD's for booting, then the hum changes and it reboots. Just keeps going... weird.

The 295x2 is sat in the top PCIE slot (I've moved it to the other slot, no difference). No matter what I've done all night. not having it...

The PSU is fine, I'm running the same PCIE powers 12v rails as I was with the 7990's... which worked perfect. Everything powers up, fans etc... but nowt.

Ran out of ideas now... could the BIOS really stop a card from working?
 
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Going by your sig ... I see only an AsRock X79 Extreme 6, for which 3.10 is the latest? http://www.asrock.com/mb/Intel/X79 Extreme6/?cat=Download&os=BIOS

Yes, an older BIOS can really stop the combination from working. Have seen it for myself putting a 770 in a slightly older PC (was fine in my own AsRock Z87 Extreme 6), and have read of plenty people who've had to updated BIOSes before things would work.
 
pugheaven said:
Well, BIos verison is now 2.70 (2/26/2014). this is the latest version and updated finally.

So, currently situation is, I can get into BIOS fine. All settings are same as with the two 7990's. Also tried resetting to defaults, still does same thing.

Basically I'll reboot... gets past the BIOS and RAID screen, then cursor top left of screen like it's trying to find the HD's for booting, then the hum changes and it reboots. Just keeps going... weird.

The 295x2 is sat in the top PCIE slot (I've moved it to the other slot, no difference). No matter what I've done all night. not having it...

The PSU is fine, I'm running the same PCIE powers 12v rails as I was with the 7990's... which worked perfect. Everything powers up, fans etc... but nowt.

Ran out of ideas now... could the BIOS really stop a card from working?
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Do you have the old card still ? does it work with the old card ?
Also, you said it gets to the point to boot from a disc, now I had this problem before when I switch sata cables around and it couldn't find boot drive.... try just the drive with the windows installed only ?
 
Smrtka said:
Do you have the old card still ? does it work with the old card ?
Also, you said it gets to the point to boot from a disc, now I had this problem before when I switch sata cables around and it couldn't find boot drive.... try just the drive with the windows installed only ?
Click to expand...
I'm borrowing my friends old 6970 tonight on way home. I sold both my 7990's yesterday and sent off... so left with zero card hahaha... however, I expect it all to boot up straight away. Will see and post back later tonight. Just waiting on a call back from a certain computer company about the problem... see if they have any ideas... doubt it. EDIT: oing around mates later with this 295x2 and see if it works in his as well. If not, RMA here we come :-(
 
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What different fans have you guys used to replace the stock rad fan? Once I get the card I'll test with stock and if it's fine then there'll be no need but I'd like to be ready to buy a replacement if needed.
 
pugheaven said:
I'm borrowing my friends old 6970 tonight on way home. I sold both my 7990's yesterday and sent off... so left with zero card hahaha... however, I expect it all to boot up straight away. Will see and post back later tonight. Just waiting on a call back from a certain computer company about the problem... see if they have any ideas... doubt it. EDIT: oing around mates later with this 295x2 and see if it works in his as well. If not, RMA here we come :-(
Click to expand...

Mate I mean this can happen, I know its a hassle and its annoying but the card is worth it in the end...let us know your progress

Ayahuasca said:
What different fans have you guys used to replace the stock rad fan? Once I get the card I'll test with stock and if it's fine then there'll be no need but I'd like to be ready to buy a replacement if needed.
Click to expand...

Matt was using this Noctura fans, you however cannot use the header on the card and need to use fan controller.

Other used this SP 120 you can run them in push pull config and both can be runned from the header on the card so you don't have to operate the temperatures.

I would suggest testing the card playing around doing some heaven, if it never goes beyond 70 degrees no need to change the fan, if it goes over 75 you will see underclocking from the card and huge fps drops, then get some extra fans.
 
Well. Tested my mates 6970 and blow me it didn't work and reboots exactly the same... So literally took my whole pc apart which has took a couple of hours. Reset all, cleaned everything put it all back together. Didn't work so... Tried to use my mates Corsair 1000w but for some reason it was playing up. So anyway... Think the only thing I can think now is psu is on way out. Weird as its powering everything up ok... Anyone else had a problem with psu but it boots to bios etc but no further? I would've thought it'd have just failed 100%???

Anyone reccomend a top 1200w+ minimum psu? Want full modular powerful enough to run system below plus two 295x2's if I go that way.
 
Superflower Platinum, no contest.

I had an 850w gold which ran a 295x2 with no issues, and my newer 5930k system has a 1200w Platinum PSU powering 295x2 + 290x + Overclocked CPU and it's flawless.
 
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