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Topic: Lowering mem clock to idle speeds SPEEDS UP Mh/s - page 4. (Read 39034 times)

full member
Activity: 126
Merit: 100
yes, but if it was not damaged by OCing, but I did OC it, I wouldn't feel bad by committing "fraud" to get a replacement... I never had to though, all the cards I've owned are Reference design XFX cards
full member
Activity: 154
Merit: 100
doesn't matter, they can't find out you were overclocking unless you do something obviously stupid to show them you were.

Of course if you try to return a card that you damaged by overclocking, and this is not covered by the warranty, you would be committing fraud.
full member
Activity: 126
Merit: 100
doesn't matter, they can't find out you were overclocking unless you do something obviously stupid to show them you were.
legendary
Activity: 3080
Merit: 1080
if you're overclocking ... you're already losing your warranty

Not always. Some companies (like XFX & EVGA) will let you overclock and still honor your warranty.

newbie
Activity: 22
Merit: 0
if you're overclocking ... you're already losing your warranty
legendary
Activity: 1855
Merit: 1016
Is there anyway to run MSI Afterburner to automatically Over clock of memory also?
I did my best & it loads core clk as 1038 on startup, but memory 1050 only, then i move the slider to minimum, for me 525, apply & restart MSI AF.
Restarting shows core as 900 & mem as 1050, but clicking saved profile, brings it to 1038/360.
I want MSI AF or if any other software there to automatically apply OC, so no human interaction needed to mining.
Tried with MSI AF 2.0 & 2.1


Flash the BIOS with whatever settings you wish.

I can't loose my warranty or guarantee.
full member
Activity: 154
Merit: 100
Is there anyway to run MSI Afterburner to automatically Over clock of memory also?
I did my best & it loads core clk as 1038 on startup, but memory 1050 only, then i move the slider to minimum, for me 525, apply & restart MSI AF.
Restarting shows core as 900 & mem as 1050, but clicking saved profile, brings it to 1038/360.
I want MSI AF or if any other software there to automatically apply OC, so no human interaction needed to mining.
Tried with MSI AF 2.0 & 2.1


Flash the BIOS with whatever settings you wish.
legendary
Activity: 1855
Merit: 1016
Is there anyway to run MSI Afterburner to automatically Over clock of memory also?
I did my best & it loads core clk as 1038 on startup, but memory 1050 only, then i move the slider to minimum, for me 525, apply & restart MSI AF.
Restarting shows core as 900 & mem as 1050, but clicking saved profile, brings it to 1038/360.
I want MSI AF or if any other software there to automatically apply OC, so no human interaction needed to mining.
Tried with MSI AF 2.0 & 2.1

EDIT: With out loosing warranty or guarantee & also no flashing & only software based.
legendary
Activity: 3080
Merit: 1080
Bump b/c it seems to work =)
Using afterburner I lowered the memclock on my 6850 to 300 and raised my core clock to 900..seems to be the sweet spot for my card.
Im up to 191-193 Mhash/s from 169-172

So essentially you were able to maintain the same thermal profile yet increase your performance Tongue ? If so then congrats!
member
Activity: 110
Merit: 10
Bump b/c it seems to work =)
Using afterburner I lowered the memclock on my 6850 to 300 and raised my core clock to 900..seems to be the sweet spot for my card.
Im up to 191-193 Mhash/s from 169-172
legendary
Activity: 1855
Merit: 1016
as i said in some posts before, which i forgot, due to get mine more, 1042 crashed.

so now back to 1038 core & 360 mem, 100% fan with temp 70C
268- 273 Mhash/s , -v -w128 -f1
full member
Activity: 126
Merit: 100
-v -w128 -f 120 here
legendary
Activity: 1855
Merit: 1016
i am running in windows 7  32bit aero enabled , 6870

at present 1042 core & 361 mem with 100% fan & 73C temp
getting 271-275 Mhash/s
with flags, -v -w128 -f1
full member
Activity: 126
Merit: 100
Please try this & give confirmed confirmations.

The MAXIMUM STABLE CONSTANT hash/s is obtained by a formula which i tried & found out for my HD6870. Instead of varying hash/s, it gives some what constant hash/s
Memory clock = (core clock /3) + 14
Please try, test & confirm with your results & please put your data here with your Graphics card & hash/s you get (you can add OS, 32 or 64, catalyst version & stream or APP version also).

Donations & loans are always welcome.
Thanks.


thanks!!!! However my numbers are different...

OS: Windows 7 Pro 64-bit
Cat 11.4 stream 2.4
Card: 6870

Hashrate @ 300 1020 core= 263500 kh/s
310 = 264400 kh/s
320 = 265500 kh/s
330 = 266300 kh/s
340 = 266800 kh/s
350 = 266750 kh/s (varies a bit more)
354 (1020/3 +14) = 266500 kh/s
360 = 265500 kh/s

After further testing:
341 = 268100 kh/s
342 = 267100 kh/s
343 = 267350 kh/s
344 = 267150 kh/s
345 = 267000 kh/s
346-349 = gradually down until 266750 kh/s

So best mem clocks are 341... 341 = coreclock/3 + 1

Trying with 999 core now

300 = 259000 kh/s
330 = 261550 kh/s
334 (999/3 + 1) = 261500 kh/s
340 = 261600 kh/s
347 (999/3 + 14) = 260800 kh/s

at this point I can see the /3 is the wrong correlation with the core clock.

337 = 261000 kh/s
338 = 261500 kh/s
339 = 261600 kh/s
340 = 261600 kh/s
341 = 261650 kh/s
342 = 261500 kh/s
343 = 261500 kh/s


So far, it seems 341 is a very good mem clock to start at
legendary
Activity: 800
Merit: 1001
Please try this & give confirmed confirmations.

The MAXIMUM STABLE CONSTANT hash/s is obtained by a formula which i tried & found out. Instead of varying hash/s, it gives some what constant hash/s
Memory clock = (core clock /3) + 14
Please try, test & confirm with your results & please put your data here with your Graphics card & hash/s you get (you can add OS, 32 or 64, catalyst version & stream or APP version also).

Donations & loans are always welcome.
Thanks.


2x5870 950core, 330mem: 316MH/s each
2x5870 950core, 1000mem: 358 MH/s each

-EP
legendary
Activity: 1855
Merit: 1016
Please try this & give confirmed confirmations.

The MAXIMUM STABLE CONSTANT hash/s is obtained by a formula which i tried & found out for my HD6870. Instead of varying hash/s, it gives some what constant hash/s
Memory clock = (core clock /3) + 14
Please try, test & confirm with your results & please put your data here with your Graphics card & hash/s you get (you can add OS, 32 or 64, catalyst version & stream or APP version also).

Donations & loans are always welcome.
Thanks.
newbie
Activity: 35
Merit: 0
OS   Win7 x64
Cat   11.3
SDK   v2.4
full member
Activity: 126
Merit: 100
Glad it is working for so many of you
legendary
Activity: 3080
Merit: 1080
What miners/OS/Catalyst/opencl are you guys running?

Newest poclbm / Win7 64 / 11.3 / whatever is included with 11.3

11.3 uses SDK 2.3 (ie opencl) as far as I know..

I've go the same setup btw.
full member
Activity: 154
Merit: 100
What miners/OS/Catalyst/opencl are you guys running?

Newest poclbm / Win7 64 / 11.3 / whatever is included with 11.3
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