vivithemage
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July 12, 2011, 04:49:17 PM |
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how does one downclock the memory, to save on power consumption but keeping output high?
I do not want to flash em, I have 4 running in a rig.
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airdata
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July 12, 2011, 08:00:54 PM |
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how does one downclock the memory, to save on power consumption but keeping output high?
I do not want to flash em, I have 4 running in a rig.
Vivi : you can use msi afterburner. Follow this guide : http://bitclockers.com/forums/index.php?topic=5.0It requires you to install msi afterburner and then edit a couple of lines of the cfg file. To get the memory clock below 500 you may have to move it to 500 and then close the program and open it back up to get it to lets say 300 or below. |
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vivithemage
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July 12, 2011, 08:12:37 PM |
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Yup, but what should I clock down to save power, but keep up mhash?
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ihokamik
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July 12, 2011, 09:03:33 PM |
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Yup, but what should I clock down to save power, but keep up mhash?
I run my Sapphire 5830 core at 966 MHz and the Memory art 325 MHz. I actually get faster hashing speed when the memory runs between 300 and 350 MHz than the default but it crashes if I launch a game. I think that the sweet spot is tightly related to your core speed. Some people are obtaining better performance at other mem speed but 325 works best for me. I haven't changed the voltage, MSI afterburner won't let me do it on this card. |
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vivithemage
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July 12, 2011, 09:04:53 PM |
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Thanks, i'll play with it when I get home ... i'll have 4 cards in one rig, so we'll see what happens  . |
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ssateneth
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Activity: 1344
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July 31, 2011, 10:24:18 AM |
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325.2 MHash/sec
Sapphire 5830 Extreme
1010/370/1.175v
70c
GUIMiner v2011-07-01 / phoenix / diapolo modded phatk 7-17
VECTORS BFI_INT WORKSIZE=256 FASTLOOP=false AGGRESSION=14
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mike678
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July 31, 2011, 04:25:02 PM |
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325.2 MHash/sec
Sapphire 5830 Extreme
1010/370/1.175v
70c
GUIMiner v2011-07-01 / phoenix / diapolo modded phatk 7-17
VECTORS BFI_INT WORKSIZE=256 FASTLOOP=false AGGRESSION=14
You shouldn't have to change voltages in order to get that speed. I have 1030/350 for the same card as yours with no overvolt and I'm getting 333.88. If I go with your speed no overvolt I get 327.36. Try these settings: phoenix 1.5 phatk from Phateus(7-29) |
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ssateneth
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Activity: 1344
Merit: 1004
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August 01, 2011, 12:00:46 AM |
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325.2 MHash/sec
Sapphire 5830 Extreme
1010/370/1.175v
70c
GUIMiner v2011-07-01 / phoenix / diapolo modded phatk 7-17
VECTORS BFI_INT WORKSIZE=256 FASTLOOP=false AGGRESSION=14
You shouldn't have to change voltages in order to get that speed. I have 1030/350 for the same card as yours with no overvolt and I'm getting 333.88. If I go with your speed no overvolt I get 327.36. Try these settings: phoenix 1.5 phatk from Phateus(7-29) Stock voltage 1.163v, maximum stable core is 985 at same temperature. I needed the bump to get it stable. |
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mike678
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August 01, 2011, 01:15:09 AM |
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325.2 MHash/sec
Sapphire 5830 Extreme
1010/370/1.175v
70c
GUIMiner v2011-07-01 / phoenix / diapolo modded phatk 7-17
VECTORS BFI_INT WORKSIZE=256 FASTLOOP=false AGGRESSION=14
You shouldn't have to change voltages in order to get that speed. I have 1030/350 for the same card as yours with no overvolt and I'm getting 333.88. If I go with your speed no overvolt I get 327.36. Try these settings: phoenix 1.5 phatk from Phateus(7-29) Stock voltage 1.163v, maximum stable core is 985 at same temperature. I needed the bump to get it stable. That's weird maybe I just got a good batch? |
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lowlevel
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August 01, 2011, 02:13:44 AM |
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Hey I was just curious if anyone has pushed their 5830's over the 311MHash/s Mark.
Getting 311.4->311.89 using Pheonix Miner in Win7 without Aero
I'm getting about 311.6 to 312.2 or so sustained on one of my 5830's. 975mhz gpu, 320mhz ram, stock voltage. My other two are in the same box and I have trouble with them past 960mhz.. so those I get 305ish on. I'm sure if I was willing to up the voltage and push the clock harder, I could get 320mhashes... but I'm not really into frying video cards. |
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ssateneth
Legendary
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Activity: 1344
Merit: 1004
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August 01, 2011, 03:53:06 AM |
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325.2 MHash/sec
Sapphire 5830 Extreme
1010/370/1.175v
70c
GUIMiner v2011-07-01 / phoenix / diapolo modded phatk 7-17
VECTORS BFI_INT WORKSIZE=256 FASTLOOP=false AGGRESSION=14
You shouldn't have to change voltages in order to get that speed. I have 1030/350 for the same card as yours with no overvolt and I'm getting 333.88. If I go with your speed no overvolt I get 327.36. Try these settings: phoenix 1.5 phatk from Phateus(7-29) Stock voltage 1.163v, maximum stable core is 985 at same temperature. I needed the bump to get it stable. That's weird maybe I just got a good batch? It's very likely. I bought 5 cards. One is good to 1025MHz stock volts, other is only good to 955MHz, regardless of voltage. |
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SolidBitShop
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Activity: 69
Merit: 10
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August 01, 2011, 09:25:45 AM |
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The stable core clock is i think by luck. I have 6 of them and not everyone runs at the same speed. For example
1015/325 - 323M#/s 74C Fan 60% - unstable for 1020+ (freezes the PC)
975/325 - 311M#/s 76C Fan 66% - unstable for longer period of time from 985+ (The drivers turn off and the card is not mining. stays on 0% GPU load)
965/325 - 308M#/s 78C Fan 69% - above 965 it gets unstable
These above are in one case. From top - the cards have better air flow. Space between is one pci/pcie slot. Two 120mm fans blowing out the hot air from the back end of the cards. If there is one 120mm fan blowing in the air on a side of a card to the fans on the cards it gets - 2/4 C depends on card (the first cards temp stays the same)
The other rig is
930@275 - 298M#/s 77 - 80 C (depends on the outside temperature) Fan 76% - Can't really tell whats the stable core clock (its running at low core clock because the heat is killing the card, its in close position to another cards so the temps are very high)
1006@315 - 319-321 M#/s 76 - 78C Fan at 66% (Its stable above these settings but the efficiency is poor (it gets less accepted and many rejected)
1015@315 - 321 - 324 M#/s 72 - 74 C Fan 54% ( unstable for 1020 +)
For this configuration there is only one 120mm fan blowing out the heat from the first and second card. ( i found that blowing out air is better than blowing in - of course best combination is blowing out and blowing in - but I dont have a fan for that jet.
Anyway if someone would be interested in software settings they are the same for all rigs:
Win7 64x
Phoenix 1.5 with phatk kernel 2011-07-17
-a 5 -k phatk VECTORS BFI_INT AGGRESSION=13 FASTLOOP=false (for phoenix worksize is default for the cards witch is 256)
catalyst 11.6 SDK 2,4 (tryed 11,7 sdk2,5 but one of my card didnt worked and the speed was poor for my settings)
PS. ohh and the voltage is stock
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