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[Official] AMD R9 390/390X Owners Club - Page 658

post #6571 of 11900
I finally have GPUz working properly and displaying vrm temps as I was told they are the overclock ceiling for these cards ( msi 390 on stock air cooler), My overclock is
Quote:
Originally Posted by Stige View Post

I call hax vrm temps, too good to be true! :l

BIOS mod for more voltage on core, aux voltage is mostly useless and memory overclocking gives no real benefit.

well ill run a benchamark or at least kombuster and show you but it is what it shows , a full benchmark of 3d mark 11 only vrms at 51-54 running 1200 1700 .. im not going to bios mod for sure and if aux volt and memory overclocking further isnt worth it than im happy with the results I have I just wanted to see if I could inch it a bit more. Its perfectly stable in games and 3d mark , artifacts a bit in heaven which is surprising and the temps are more than reasonable. I think ill work on overclocking the CPU and ram a bit more and leave the gpu alone, its a great card.
    
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post #6572 of 11900
Can someone tell me how to fix the table not showing all the way up? It cuts off horizontally on chrome, and I can't see the rest.
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post #6573 of 11900
Hey guys, does anyone here have a recommendation of what BIOS I should flash on my XFX DD R9 390?

Also, could I flash an overclocked BIOS to my card, then trick MSI to allow me to add another +100mv on the card? Could I do that or is it a bad idea?

I'm spending all of tonight trying to break the 10,000 mark in firestrike.
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post #6574 of 11900
Quote:
Originally Posted by m70b1jr View Post

Hey guys, does anyone here have a recommendation of what BIOS I should flash on my XFX DD R9 390?

Also, could I flash an overclocked BIOS to my card, then trick MSI to allow me to add another +100mv on the card? Could I do that or is it a bad idea?

I'm spending all of tonight trying to break the 10,000 mark in firestrike.

I can give you my modded bios in about 5 hours.
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post #6575 of 11900
Quote:
Originally Posted by jdorje View Post

I can give you my modded bios in about 5 hours.
Inb4 my pc explodes
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post #6576 of 11900
Well, I use stock 1225 mV core voltage. Raising voltage at all isn't that helpful and past the +100 limit of afterburner even less so. I do think my stock voltage is lower than the norm though.

The real benefit comes from changing the memory straps.
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post #6577 of 11900
Quote:
Originally Posted by jdorje View Post

Well, I use stock 1225 mV core voltage. Raising voltage at all isn't that helpful and past the +100 limit of afterburner even less so. I do think my stock voltage is lower than the norm though.

The real benefit comes from changing the memory straps.
Can I get a brief explanation of memory straps?
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post #6578 of 11900
Memory timings (like cas for dram) are controlled in the bios and can't be changed in afterburner. If you bump ram speed at certain cutoffs the timings will be raised. If you benchmark you can see ram at 1624 is faster than 1626.

So you just use a hex editor to copy paste the timings from 1101-1225 up to all your higher speed ranges. You can find videos on this easily but there's not much customization since everyone ends up using that same strap.

It's a 2-3% performance boost basically for free.
Edited by jdorje - 2/27/16 at 5:32pm
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post #6579 of 11900
Quote:
Originally Posted by jdorje View Post

Memory timings (like cas for dram) are controlled in the bios and can't be changed in afterburner. If you bump ram speed at certain cutoffs the timings will be raised. If you benchmark you can see ram at 1624 is faster than 1626.

So you just use a hex editor to copy paste the timings from 1101-1225 up to all your higher speed ranges. You can find videos on this easily but there's not much customization since everyone ends up using that same strap.

It's a 2-3% performance boost basically for free.

I'm trying to do some heavy overclocking on my R9 390 to break the 10,000 mark in Firestike, My FX-8350 is at 4.5ghz. Also, i've checked to see if some of my CU cores could be unlocked, but they can't sadly. Also, my aftermarket AIO liquid cooler doesn't let me do as high clock speeds as my stock cooler. not because of temps, but artifacting.
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post #6580 of 11900
You can't really compare 3dmark scores across different cpus. Better to just look at the graphics score. Even that might be cpu bound for all I know.

http://www.3dmark.com/fs/7199111

And one last thing: if you need more voltage with the aio cooler it's probably vrm temps. Try to get a decent heat sink on them.
Edited by jdorje - 2/27/16 at 6:01pm
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