Hey not it was not PSU. 750W was enough but upgraded to 1050W anyway.
Everything runs awesome right now. Let me tell you what were the issues:
1) Not reinstalled system from previous Nvidia cards - that gave me the issue of one card running at full clocks and another one on 50-100 usage (most...
Well on the box they say that overvolting is as easy as pushing +/- button on cards. I will have to test it tomorrow. It needs some kind of VGA connection to motherboard in order to work. Never had matrix before, I have no idea how it works.
MSI Afterburner shows empty space in mV for core. GPU...
I didn't undervolted them, actually I'm trying at the moment but no matter what I set in GPU Tweak it's still at 1,2560V for CORE.
As for CPU, yeah I think it might bottleneck it a little in BF3. Unreal benchmark don't use that much CPU and GPU usage for both stays at 90+ Levels.
CPU temps are...
One more test, Valley Benchmark. With everything on default settings, just power target of 120%. Looks much better 90+% usage.
CPU stays not overclocked, it might be bottlenecking cards a little as CPU usage was often 99%.
620W usage on full stress. Temp on top card was around 85 degrees but...
Just finished reinstalling and setting everything. Looks like the issue changed a little.
Right now usage on both cards is synchronized, but it's never staying at top level of 90-99%, very jumpy.
Right now will try undervolting the cards.
+12V rail is in average 12,314 with max 12,408. Power...
I'm doing tests on BF3/Valley Benchmark.
I'm currently waiting for other PSU to test.
BTW. Found a person with same issue on other board but the guy used MSI card and they offered new firmware to fix the issue. I will attach usage screenshots when I'm ready with PSU.
ULPS disabled, +20% power set, will check if VRAM temps are sensors are present. I forgot about that extra connector on motherboard, will check that too.
That is interesting, how do I turn off ultra low power state? Won't it get the cards hot in normal usage when the power isn't needed?
Right...
13.101 betta CF performance is average, cards utilization between 60-80%
Actually played ~20-30minutes and difference between cards is MAX. 10 degrees.
Summing up as for now
13.11 - the best performance, but one card GPU usage drop around 10-15minutes of playing
13.101 - average CF...
Beta 13.11 played a couple of minutes in BF and it started to happen around 76 degrees with Voltage of 1.2000 and Power Limit +20%.
Gonna install 13.10 betas right now. Already test single card setup and they are not defected it seems.
EDIT: 13.10 drivers (it seems these are same as on ASUS...
Framepacing enabled by default.
What is interesting that default voltage for card is 1,2510.
I think it's the 80 degrees spot where the card is starting to lower itself, however im monitoring vCORE and memory and there are no changes.
Will try power limit.
Running 13.11 Beta Driver. Didn't play with power/thermal limit yet.
Checked for these limits, seems there is power limit set to 100% but can't find anyting related to temperatures. I think you might be right about 80 degree being the spot for some cut.
Still investigating.
I think I don't...
Thanks for your input, I've got 14 days to return, still have time to upgrade PSU and check if this is the issue. Anyone else with CF can say something about the issue?
Temps are actually pretty good, it's 70-80 degrees in full stress and 30-40 in idle. So it's not TEMPs I'm worried about.
btw asrock z77 ws is pretty good for CF/SLI as there is a nice GAP between cards, they are not overheating.
Ops, sorry about that
i5-3570K
asrock z77 ws
2x matrix asus r9 280x
16GB of ram
2x Samsing 830SSD in RAID0
playing on 1440p 27'
not a nvidia employee :)
Hey to all, new to the forum and of course with issues.
I switched from Nvidia to ATI yesterday and I wasn't even able to play any game comfortable since then :-)
My cards are www.asus.com/Graphics_Cards/MATRIXR9280XP3GD5
My PSU is Seasonic GOLD 750W
and my issue is that after a couple of...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.