I was not sure what the AUX was for, that sums it up.
My VRM's are below max's about 45-50c so they are fine. I find the EK block cools nicely.
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Why is AMD quiet about black screens on 290x?
- Thread starter Rangerjr1
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I was not sure what the AUX was for, that sums it up.
My VRM's are below max's about 45-50c so they are fine. I find the EK block cools nicely.
Soldato
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Ah right you 290 is under water, so it wouldn't be an issue then.
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Without reading through 25 pages, are the VRM's the issue here?
No i don't think so. I think it comes down to a lack of voltage or memory being overclocked too far. Or it could be memory being overclocked but not being fed enough voltage. These are just my opinions having done testing myself looking for the black screen. It may not be this case for everyone but my testing on two cards different cards has brought the same answer from each.
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Matt can you run Bf4 @1625 on the memory without getting a blackscreen? seems i can get through benchmarks easy enough, but gaming, (BF4 especially) get's a blackscreen if the memory is pushed too far.
1150/1400 seems the sweet spot so far on the stock cooler for me, averages are always over 100 on bf4 at those speeds.
1150/1400 seems the sweet spot so far on the stock cooler for me, averages are always over 100 on bf4 at those speeds.
Some cards suffer from memory voltage / clock related issues on stock clocks as well, my first 290 had to under-clock memory by 100mhz to get it stable on BF4 .... thats with the non Hyinx memory. 2nd 290 (with hyinx memory) works fine at stock
BF4 seems to stress the VRAM a lot more than some benchmarks, i guess that in itself makes BF4 the benchmark for memory OC on these
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Not so much of an issue...just saying people should keep an eye on the vrm1 temp when using fairly high voltage (i.e. over +100mV).
The 3rd party coolers/custom coolers no doubt cool the GPU far better than the reference cooler, but the trade off is it doesn't cool the vrm1 as good. When I use +150mv, the vrm1 temp can hit as high as around 100C. I'm using the Gelid IcY Version 2 cooler with the big Alpenföhn vrm-sink.
Not tried buddy. As memory seems to be tied closely to core voltage i might need to bump the core voltage to be stable. I can run 1100/1400 no problem at stock clocks. I will play a round now and see if i can run 1100/1500 at stock clocks. 1625 will probably require more voltage. You gain so little from memory overclocking its really not worth it imo outside of benchmarks. 1400 is more than enough. (infact i believe 1300 is plenty for every game) However ill try 1500 and see how i get on. BRB with results/fps figures.
Some cards suffer from memory voltage / clock related issues on stock clocks as well, my first 290 had to under-clock memory by 100mhz to get it stable on BF4 .... thats with the non Hyinx memory. 2nd 290 (with hyinx memory) works fine at stock
Not disputing that, but thats a faulty card.
Yes i got a black screen shortly after applying 1500mhz. However i was using stock volts. I tried adding +25mv of Aux voltage but it made no difference. For 1500mhz memory i will need to bump core voltage to avoid the black screen, as i predicted.
Ok i was playing BF4 at 1150/1500 crossfire at +0.050mv perfectly fine but my psu crapped out. Guess after 15 minutes of gaming it just can provide enough wattage. I was getting some silly high fps and things were stable. I'll back off the volts a bit and the core clock and im now running my cpu at 4ghz so will test again.
Holy FPS!
Ok so according to my brief testing i need +0.038mv for 1150/1500 game stable!
That = this much bandwidth and pixel rate.
That = this much fps
Frames, Time (ms), Min, Max, Avg
60614, 463547, 90, 200, 135.735
Settings used
2700k@4ghz
290 Pro Crossfire@1150/1500
13.12 WHQL
1440P Ultra Preset + 4xAA (highest settings)
Lockers TDM 32 Man TDM
My two cents. Suffering from black screen when overclocking? You need more core voltage.
Source
http://battlelog.battlefield.com/bf4/battlereport/show/1/420624317955984192/179097367/
Last edited:
Soldato
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Matt you got Metro2033? Try using its benchmark and set it on loops for around 5 times and see if you don't get any blackscreen. For me if the memory clock isn't stable, it would blackscreen within around 3 loops.Holy FPS!
Ok so according to my brief testing i need +0.038mv for 1150/1500 game stable!
That = this much bandwidth and pixel rate.
That = this much fps
Frames, Time (ms), Min, Max, Avg
60614, 463547, 90, 200, 135.735
Settings used
1440P Ultra Preset + 4xAA (highest settings)
Lockers TDM 32 Man TDM
My two cents. Suffering from black screen when overclocking? You need more core voltage.
To be honest, I'm still not convinced that the core and aux voltage does jacks for helping with stablising the memory clock.
I do indeed mate. Let me download it and see what happens. Will report back. Tell me the exact settings to use, print screen please.
im not saying you are wrong and in my case my blackscreen could be caused by old hardware or bad overclocks,faulty psu etc but I could play bf4 for almost an hour before getting a blackscreen crash.
an 8minute round in lockers i don't think is conclusive.
out of interest when your psu crapped out what happened?
an 8minute round in lockers i don't think is conclusive.
out of interest when your psu crapped out what happened?
Fair point mate. Its not a very long test. I will repeat it for a bit longer shortly. The thing for me is, id never run gaming 24.7 at these clocks. Its just producing endless fps that i simply don't need nor my monitor can benefit from. Even stock is overkill. So much so that as a crossfire user ive started under clocking to normal 290 reference speed of 947/1250 from 975/1250.
When the PSU Crapped out the pc turns off and restarts itself. I've become familiar with that. If i run 1100/1400 at stock voltage i have no problems. But i think my heavily clocked cpu and heavily clocked dual gpu's was a bit much for my 750W psu once the gpus got warm.
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Here you go:I do indeed mate. Let me download it and see what happens. Will report back. Tell me the exact settings to use, print screen please.
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Cheers for that Matt,
Only issue is for me, the blackscreens can occur and ramdom times, sometimes 2 minutes in or 30mins.
Give me a sec and i'll try putting the memory to 1500 instead of 1400.
Only issue is for me, the blackscreens can occur and ramdom times, sometimes 2 minutes in or 30mins.
Give me a sec and i'll try putting the memory to 1500 instead of 1400.
Here you go:
On it. Give me a few. I don't anticipate a problem, but we'll see.
Just played three rounds. Must have been half an hour or so, possibly longer. No problems.
FPS @same clocks+settings
ROUND1
Frames, Time (ms), Min, Max, Avg
45142, 350079, 88, 197, 130.937
ROUND2
Frames, Time (ms), Min, Max, Avg
48023, 403967, 87, 186, 126.853
ROUND3
Frames, Time (ms), Min, Max, Avg
58384, 456609, 95, 199, 131.847
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Soldato
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Well had that round with you Matt on locker, then jumped on a Silk road server and got a blackscreen after about 6 mins.
clocks were 1150/1500 vcore +100mv.
Looking at my temps everything seems fine, core max was 82c, vrm1 72c vrm2 64c.
it's confusing but to me honest, at the moment it doesn't bother me to much, i only ever get that when pushing the memory to hard and as you say, outside of benchmarking, memory makes little difference to fps.
The card will happily bench at 1250/1625 and 24/7 oc is 1150/1400 which gives fps over 100 on all maps on BF4, so i'm happy for now.
Watercooling the lot on Friday
clocks were 1150/1500 vcore +100mv.
Looking at my temps everything seems fine, core max was 82c, vrm1 72c vrm2 64c.
it's confusing but to me honest, at the moment it doesn't bother me to much, i only ever get that when pushing the memory to hard and as you say, outside of benchmarking, memory makes little difference to fps.
The card will happily bench at 1250/1625 and 24/7 oc is 1150/1400 which gives fps over 100 on all maps on BF4, so i'm happy for now.
Watercooling the lot on Friday