Custom RAM Timings for GPU's with GDDR5 - DOWNLOAD LINKS - UPDATED

[ManyMan]

1320/2025 (470 not 480)

https://s15.postimg.org/7l0q11r2z/1320_2025.jpg


default on 1260/2000

https://s15.postimg.org/dkoh4pbvf/1260_2000.jpg


hardcore

https://s15.postimg.org/5uhozk9jv/hardcore.jpg

Great results, mind sharing?

[laik2]

806 H/s using mix 1375 straps.

Yeah, it can likely get better.

Actually there is no "better" memory vendor here.
The only "better" thing about Elpida is that you can literaly put random hex symbols as timings and it can handle it

[nesic1]

xfx hynix 470 4gb, 845h xmr (1266/2050), eth 28.8Mh (1125/2000),

on stock memory was stable below 1970, 1125/1950  -  27.5Mh on eth, now 1125/2000 on eth 28.8Mh;
xmr below 700h now 845h (have to test stability)

some other cuts
1101/1950 - 773h xmr,
1101/2000 - 773h xmr,
1125/1950 - 28.1Mh eth

[Bakhtra]

xfx hynix 470 4gb, 845h xmr (1266/2050), eth 28.8Mh (1125/2000),

on stock memory was stable below 1970, 1125/1950  -  27.5Mh on eth, now 1125/2000 on eth 28.8Mh;
xmr below 700h now 845h (have to test stability)

some other cuts
1101/1950 - 773h xmr,
1101/2000 - 773h xmr,
1125/1950 - 28.1Mh eth

Only 1 of my gpu that can use 2050 memory clock, but still much below yours.
Still need to find better  straps.

[kemo6600]

Is there any way to find out what memory chips the card has without removing the cooler? I've got one Nitro RX 480 4GB, GPU-Z just says "Elpida", but could there be different Elpida chips out there used for RX 4*0 cards? Having a hard time with this one, 725 H/s is the highest hashrate I've got so far. It's at 1200/1690 @ 0.9V with copied timings from 1375 strap. I don't have nearly enough knowledge to do what you guys do with custom timings, and it's just one card so buying a custom BIOS for it is not feasible as well - thus I'm just tinkering with it any way I can. Weird thing about it is that even with stock BIOS the memory won't overclock to more than 1800 without HWiNFO errors and visual artifacts on the screen (stock clock is 1750). I keep finding threads where people overclock their Elpida RX 480 cards to 2000+ memclock somehow, and that's even with tighter timings copied from 1500-1625 straps, but mine can only OC to ~1800, and after testing all the straps from the original BIOS, the fastest combination is 1375 strap with 1690 memclock (1700 is already showing errors in HWiNFO). What do you guys think - is this a timings issue (stock timings are too tight in the original BIOS to allow any reasonable memclock increase), or is it particular Elpida memory chips in my card that suck more than anything that has even sucked before? Many applications out there show what chips used in system memory sticks, are there any apps that show the same for GPU memory?

Your cards must  be RX480 Nitro(Without +) , those cards come without Dual Bios  switch  , without Sapphire LED . Those cards are dont clock nice on the memory despite having good Elpida chips   , avoid at all costs .

[Eliovp]

What clocks? Got 930H/s on 1140@1625 on 1125 strap.

Wonder what kind of speeds wolf0 could get out of these.

1240/1625 1125 strap hynix:

Damn, that's impressive. I'm guessing hawaii BIOS needs to be edited in HEX to change the straps?

I was told by Eliovp that changing straps on hawaii doesn't help. Clearly he's wrong!

I just read this :p

I went back to check on our pm's, i never said anything about XMR...

Just for the fun of it, i'll get my 390's out of the dust and have some fun with them this week.

greetings!

[nesic1]

xfx hynix 470 4gb, 845h xmr (1266/2050), eth 28.8Mh (1125/2000),

on stock memory was stable below 1970, 1125/1950  -  27.5Mh on eth, now 1125/2000 on eth 28.8Mh;
xmr below 700h now 845h (have to test stability)

some other cuts
1101/1950 - 773h xmr,
1101/2000 - 773h xmr,
1125/1950 - 28.1Mh eth

Only 1 of my gpu that can use 2050 memory clock, but still much below yours.
Still need to find better  straps.

(this test gpu from simple strap copy can do only 1970 max memory clock, now with this strap it can go more)

put it a while to work, wile i go to sleep and
1125/1960 clocks
470 4gb
sapphire reference samsung 27.6 (GPU0)
sapphire reference hynix 27.4 (GPU2)
my costum xfx timing 28.2 (GPU1)

[eretron]

I got my 2 Sapphire 470 Nitro+ 4GB with Samsung rock solid @ 29.5MH/s on eth.

This is on Linux box... Maybe win would be a bit faster.

I got 30+ but it's not that stable...

[nesic1]

some new moments, will do some stability check and modifications

[doktor83]

great, if its stable 

[deadsix]

Replying just to watch this thread.

[wacko]

Is there any way to find out what memory chips the card has without removing the cooler? I've got one Nitro RX 480 4GB, GPU-Z just says "Elpida", but could there be different Elpida chips out there used for RX 4*0 cards? Having a hard time with this one, 725 H/s is the highest hashrate I've got so far. It's at 1200/1690 @ 0.9V with copied timings from 1375 strap. I don't have nearly enough knowledge to do what you guys do with custom timings, and it's just one card so buying a custom BIOS for it is not feasible as well - thus I'm just tinkering with it any way I can. Weird thing about it is that even with stock BIOS the memory won't overclock to more than 1800 without HWiNFO errors and visual artifacts on the screen (stock clock is 1750). I keep finding threads where people overclock their Elpida RX 480 cards to 2000+ memclock somehow, and that's even with tighter timings copied from 1500-1625 straps, but mine can only OC to ~1800, and after testing all the straps from the original BIOS, the fastest combination is 1375 strap with 1690 memclock (1700 is already showing errors in HWiNFO). What do you guys think - is this a timings issue (stock timings are too tight in the original BIOS to allow any reasonable memclock increase), or is it particular Elpida memory chips in my card that suck more than anything that has even sucked before? Many applications out there show what chips used in system memory sticks, are there any apps that show the same for GPU memory?

Your cards must  be RX480 Nitro(Without +) , those cards come without Dual Bios  switch  , without Sapphire LED . Those cards are dont clock nice on the memory despite having good Elpida chips   , avoid at all costs .

Yep, spent a lot of time playing with that one, seems like really bad memory on these, even with the most loose timings I could found it can't even overclock past ~1850 MHz. I'm actually running it now with 1375 strap timings from Hynix. These are a bit faster than 1375 Elpida strap.

Replying just to watch this thread.

There's "watch" and "notify" buttons in pretty much every forum including this one, why post meaningless messages instead of pressing one of those?

[nesic1]

great, if its stable 

cut is not stable at all, in fact that was probably miner error since i cant get that hash again

[Foss]

Hi timings guru  
I have dying r9 290 (hynix memory), wich works only on 1125 memory clock, strap for 900 mhz - BSOD!
Here 1125 mhz strap:

Code:

55513320000000006BBD572D60550D0E229096040028C30022BB1C08530A1420BA8800A000000120100C1E22491D2312

Please help me improve hash rate  

[nesic1]

using hdmi vga adapter, primary card giving picture on monitor, probably V can go down but to see how it run first

stock bios copying strap 1500 on higher memory was stable on 1970 max now it can go more 

[laik2]

using hdmi vga adapter, primary card giving picture on monitor, probably V can go down but to see how it run first

stock bios copying strap 1500 on higher memory was stable on 1970 max now it can go more 

And what is your powerdraw ?
I've got my 480s 8GB samsung to hash with almost 31MH(30.2MH stable) for 72h consuming 690W(5 GPUs) without an issue

[Eliovp]

using hdmi vga adapter, primary card giving picture on monitor, probably V can go down but to see how it run first

stock bios copying strap 1500 on higher memory was stable on 1970 max now it can go more  

https://s9.postimg.org/t7gc6l4tb/555777_Copy_Copy.jpg

And what is your powerdraw ?
I've got my 480s 8GB samsung to hash with almost 31MH(30.2MH stable) for 72h consuming 690W(5 GPUs) without an issue

Yeah, ditto here, claymore on linux though..



core 1220 mem 2100

does around 850 on xmr as well

Greetings!

[nesic1]

30Mh nice :thumb_up:

laik, will measure it later,

i also get 770-845h xmr depending on clocks

[nesic1]

some new cuts
hynix 470 4gb @ xmr

[Eliovp]

some new cuts
hynix 470 4gb @ xmr

https://s3.postimg.org/t4r2vgsv7/tractor1.gif

https://s8.postimg.org/kv51ys9w5/tractor.jpg

I would love to see those 2 screens in one screenshot and with your sensors open.

Rawintensity 512 


Otherwise, you've got one of the "good" hynixes out there , good job.