Topic: HD7770 & HD7750 mining thread - page 2. (Read 49986 times)
FWIW, I started playing with OCing today. I'm getting 144 off of my 7750 at 975/800, -v -f1 -w128
(edit: 146-147 @ 995/750. I think I'll let that run tonight, because I don't want to get crazy with this when I am not awake to monitor. I DO use this PC for other things most of the time, so I need to not blow up the card.)
hmm:
Sapphire Radeon HD 7750 Ultimate (fanless) 55W TDP
GuiMiner 2012-12-03 -v -w128 on Win7x64
No OC (800mhz / 1250 mem)
...
117mhash
DiabloMiner:
DiabloMiner-Windows.exe -v 1 -w 256
...
119mhash
DiabloMiner-Windows.exe -v 1 -w 128
...
121mhash
increase clock to 880mhz (+10%)
...
131mhash
Sapphire Radeon HD 7750 Ultimate (fanless) 55W TDP
GuiMiner 2012-12-03 -v -w128 on Win7x64
No OC (800mhz / 1250 mem)
...
117mhash
DiabloMiner:
DiabloMiner-Windows.exe -v 1 -w 256
...
119mhash
DiabloMiner-Windows.exe -v 1 -w 128
...
121mhash
increase clock to 880mhz (+10%)
...
131mhash
Thanks for the replies... still can only average 121Mhash on this card... tried the setting you suggested, and played with worksize and intensity a little from the suggestions here https://en.bitcoin.it/wiki/Mining_hardware_comparison but looks like this is possibly the most i can squeeze out of this card for now it seems... set core clock to 800MHz and Memory Clock to 900MHz and power limit + 20% so everything up high... can go higher on core clock and memory clock but tends to crash the card
If you're setting your core to 800, you want your memory at 650. High memory does not translate into higher hasrate, it just means higher temps and higher power consumption. 
Thus, when you were running your core at 800, you want your memory at 650. If you're core is set to 650, your memory should be 500. See the pattern?
Sorry was a typo getting them round the wrong way.. I have set my 7750 at core clock 900... memory clock 400 I can get down to on MSI Afterburner
Still only runs at 121Mhash average.. but I suppose that all I gonna get out of the card, ty for all your help crazyates least now i using less power with a lower memory clock
Ah ok, glad you got it working. The lower memory will help with lower power and temps, but it's not exactly a powerhouse for mining. Glad I could help! Still only runs at 121Mhash average.. but I suppose that all I gonna get out of the card, ty for all your help crazyates least now i using less power with a lower memory clock
Sorry was a typo getting them round the wrong way.. I have set my 7750 at core clock 900... memory clock 400 I can get down to on MSI Afterburner
Still only runs at 121Mhash average.. but I suppose that all I gonna get out of the card, ty for all your help crazyates least now i using less power with a lower memory clock
Still only runs at 121Mhash average.. but I suppose that all I gonna get out of the card, ty for all your help crazyates least now i using less power with a lower memory clock
Thanks for the replies... still can only average 121Mhash on this card... tried the setting you suggested, and played with worksize and intensity a little from the suggestions here https://en.bitcoin.it/wiki/Mining_hardware_comparison but looks like this is possibly the most i can squeeze out of this card for now it seems... set core clock to 800MHz and Memory Clock to 900MHz and power limit + 20% so everything up high... can go higher on core clock and memory clock but tends to crash the card
If you're setting your core to 800, you want your memory at 650. High memory does not translate into higher hasrate, it just means higher temps and higher power consumption. Thus, when you were running your core at 800, you want your memory at 650. If you're core is set to 650, your memory should be 500. See the pattern?
not true...if you do the msi afterburner OC thing it'll let you set your mem down to 300...so they say but i'm running my 7970 at 1100core and 685mem...can't get it to get lower then that...the slider bar won't go back to the middle but oh well i'm happy with it
Thanks for the replies... still can only average 121Mhash on this card... tried the setting you suggested, and played with worksize and intensity a little from the suggestions here https://en.bitcoin.it/wiki/Mining_hardware_comparison but looks like this is possibly the most i can squeeze out of this card for now it seems... set core clock to 800MHz and Memory Clock to 900MHz and power limit + 20% so everything up high... can go higher on core clock and memory clock but tends to crash the card
If you're setting your core to 800, you want your memory at 650. High memory does not translate into higher hasrate, it just means higher temps and higher power consumption. Thus, when you were running your core at 800, you want your memory at 650. If you're core is set to 650, your memory should be 500. See the pattern?
Thanks for the replies... still can only average 121Mhash on this card... tried the setting you suggested, and played with worksize and intensity a little from the suggestions here https://en.bitcoin.it/wiki/Mining_hardware_comparison but looks like this is possibly the most i can squeeze out of this card for now it seems... set core clock to 800MHz and Memory Clock to 900MHz and power limit + 20% so everything up high... can go higher on core clock and memory clock but tends to crash the card
If you're setting your core to 800, you want your memory at 650. High memory does not translate into higher hasrate, it just means higher temps and higher power consumption. Ok ty I did not know this... i just assumed u needed to max out the clocks as much as possible... i have set mem clock to 900 and core to 650 and seem to be squeezing out a little extra on the hasrate... will see how it runs for a few hours and if there is any difference... but thank you again for the info and educating me
Thanks for the replies... still can only average 121Mhash on this card... tried the setting you suggested, and played with worksize and intensity a little from the suggestions here https://en.bitcoin.it/wiki/Mining_hardware_comparison but looks like this is possibly the most i can squeeze out of this card for now it seems... set core clock to 800MHz and Memory Clock to 900MHz and power limit + 20% so everything up high... can go higher on core clock and memory clock but tends to crash the card
If you're setting your core to 800, you want your memory at 650. High memory does not translate into higher hasrate, it just means higher temps and higher power consumption.
Thanks for the replies... still can only average 121Mhash on this card... tried the setting you suggested, and played with worksize and intensity a little from the suggestions here https://en.bitcoin.it/wiki/Mining_hardware_comparison but looks like this is possibly the most i can squeeze out of this card for now it seems... set core clock to 800MHz and Memory Clock to 900MHz and power limit + 20% so everything up high... can go higher on core clock and memory clock but tends to crash the card
@FuzzyBear, try changing intensity to 7 and the kernel to diablo. My 7750 @ 830/300 gets about 128 MH/s. Overclocked to 950 MHz, it does 150 MH/s.
Hmmm any advice would be appreciated...
Friend gave me a HD7750 the other day...
Plugged it in motherboard on seperate computer away from my main 7970 rig...
I have installed all necessary drivers and opencl support drivers...
Fired up comp, detects GFX card (running the monitor from it)
open both GUIMiner and cgminer.. but both do not detect my GPU
any further points to try?? OS is XP as opposed to win 7.... could that be an issue as i just copied the mining software across from there?
Many thanks... and GTZ on Avlon releasing first ASICs!!
EDIT:
OK i got it working.... just upgraded to windows 7... much easier
only getting 110-120MHash/s on a 7750 using cgminer... config file looks like:
any advice on tweaks would be appreciated
as its 2am and i need to sleep... i'll try different settings over the weekend and post if i get better and no-one replied
Friend gave me a HD7750 the other day...
Plugged it in motherboard on seperate computer away from my main 7970 rig...
I have installed all necessary drivers and opencl support drivers...
Fired up comp, detects GFX card (running the monitor from it)
open both GUIMiner and cgminer.. but both do not detect my GPU
any further points to try?? OS is XP as opposed to win 7.... could that be an issue as i just copied the mining software across from there?
Many thanks... and GTZ on Avlon releasing first ASICs!!
EDIT:
OK i got it working.... just upgraded to windows 7... much easier
only getting 110-120MHash/s on a 7750 using cgminer... config file looks like:
Code:
{
"pools" : [
{
"url" : "http://coinotron.com:3333",
"user" : "xxxxxxxx",
"pass" : "xxxxx"
},
{
"url" : "http://mmpool.bitparking.com:15098",
"user" : "xxxxxxx",
"pass" : "xxxx"
}
],
"intensity" : "8",
"vectors" : "1",
"worksize" : "256",
"kernel" : "poclbm",
"lookup-gap" : "0",
"thread-concurrency" : "0",
"shaders" : "0",
"gpu-engine" : "0-0",
"gpu-fan" : "0-100",
"gpu-memclock" : "0",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0.000",
"temp-cutoff" : "95",
"temp-overheat" : "85",
"temp-target" : "75",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "1",
"log" : "5",
"queue" : "1",
"scan-time" : "50",
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}
any advice on tweaks would be appreciated
as its 2am and i need to sleep... i'll try different settings over the weekend and post if i get better and no-one replied
my HD7750 runs fine at 150 MHash/s
You still have to change the value in the config file irregardless, unless I'm been goofing up for the past 2 years. 
Very nice purelithium.
As for lowering the memory, go into MSIAfterburner.cfg and change "UnofficialOverclockingMode = 0" to "UnofficialOverclockingMode = 2". You should be able to lower it further.
As for lowering the memory, go into MSIAfterburner.cfg and change "UnofficialOverclockingMode = 0" to "UnofficialOverclockingMode = 2". You should be able to lower it further.
If you do that, and still can't underclock memory, download and place "atipdlxx.dll" into the MSI AB program folder.
That's assuming you're using 2.2.2 or later. 2.2.1 or older include those files.
That's why I said IF. If you don't need the file, then you shouldn't get the no-sliders issue.
Very nice purelithium.
As for lowering the memory, go into MSIAfterburner.cfg and change "UnofficialOverclockingMode = 0" to "UnofficialOverclockingMode = 2". You should be able to lower it further.
As for lowering the memory, go into MSIAfterburner.cfg and change "UnofficialOverclockingMode = 0" to "UnofficialOverclockingMode = 2". You should be able to lower it further.
If you do that, and still can't underclock memory, download and place "atipdlxx.dll" into the MSI AB program folder.
That's assuming you're using 2.2.2 or later. 2.2.1 or older include those files.
Very nice purelithium.
As for lowering the memory, go into MSIAfterburner.cfg and change "UnofficialOverclockingMode = 0" to "UnofficialOverclockingMode = 2". You should be able to lower it further.
As for lowering the memory, go into MSIAfterburner.cfg and change "UnofficialOverclockingMode = 0" to "UnofficialOverclockingMode = 2". You should be able to lower it further.
If you do that, and still can't underclock memory, download and place "atipdlxx.dll" into the MSI AB program folder.
Very nice purelithium.
As for lowering the memory, go into MSIAfterburner.cfg and change "UnofficialOverclockingMode = 0" to "UnofficialOverclockingMode = 2". You should be able to lower it further.
As for lowering the memory, go into MSIAfterburner.cfg and change "UnofficialOverclockingMode = 0" to "UnofficialOverclockingMode = 2". You should be able to lower it further.
My Sapphire ghz edition 7770(stock 1150) is running stable at 1300 core and 650mem(AB won't let me go lower for some reason) on stock voltage at 241 mhash/s on BFGMiner on win 7 64bit, using Diakgcn kernel. very impressed.
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