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7970 DC2T + EK VGA HF Supreme


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#1 Dasa

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Posted 08 March 2012 - 11:10 AM

It seems to have worked so im of to a good start
now lets see if it can oc any further
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Edited by Dasa, 08 March 2012 - 12:48 PM.

2600k@4.8GHz 1.38v - Z77-GENE - 2x4g 1600 8-9-8 - 7970 1150\7000MHz 1.15v - OCZ Synapse 120g Seagate 2tb - Seasonic XP1000 - Dell U2711 - Pioneer Todoroki 5.1 Storm G5 - MCW60 - EK-VGA HF - MCP355 XSPC Restop - PA120.4 - Scythe GT 4x120 1440/1850rpm http://i3.photobucke...sa09/z77rog.jpg

#2 p0is0n

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Posted 08 March 2012 - 11:37 AM

Nice, looks like the gypsy copper turned out really well. Temps look awesome too. The DC2T looks quite different from a reference card under the hood, much nicer haha. From the pics it seems you didn't have to drain your loop, just remounted the block, smooth.
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#3 Morgoth

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Posted 08 March 2012 - 11:57 AM

Very nice, such awesome temperatures =O
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#4 Dasa

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Posted 08 March 2012 - 12:08 PM

was tempted to remove the heat plate since it only makes half contact with the memory chips down the vrm side and no contact with the rest of the memory chips they would probably be cooler without it and give the ln2 vrm heatsink that came with the card a go ok early overclocking test with water ~25mhz more than air at same v tried 1250mhz it artifacted tried give it more v it artifacted and locked up so unless there is a vmod\bios to help this thing looks like its a dud as far as high overclocks go but it does do 1200mhz at a very low v so its good in that respect temps overclocked have topped out at 40c core 80c vrm but it was artifacting so quick at 1250mhz the vrm didnt even get a chance to warm up much past 60c i will flush the loop and redo it all a bit neater when i get a new mb probably z77
2600k@4.8GHz 1.38v - Z77-GENE - 2x4g 1600 8-9-8 - 7970 1150\7000MHz 1.15v - OCZ Synapse 120g Seagate 2tb - Seasonic XP1000 - Dell U2711 - Pioneer Todoroki 5.1 Storm G5 - MCW60 - EK-VGA HF - MCP355 XSPC Restop - PA120.4 - Scythe GT 4x120 1440/1850rpm http://i3.photobucke...sa09/z77rog.jpg

#5 p0is0n

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Posted 08 March 2012 - 12:22 PM

is that with 1300mv on the core dasa? if so. thats a bit of a shame. To be honest when I first got mine, I was happy that it could do 1200 stable like you said. Anything more is just epeen in a way.
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#6 Dasa

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Posted 08 March 2012 - 12:32 PM

yep does 1225mhz at ~1190mv and wont do 1250mhz even with 1300mv i really did want ~1300+ stable on water so that it would perform fairly close to my gtx480 sli at 2560 in games which is mostly why a forked out extra for this card hoping it would do better on water than most reference cards
2600k@4.8GHz 1.38v - Z77-GENE - 2x4g 1600 8-9-8 - 7970 1150\7000MHz 1.15v - OCZ Synapse 120g Seagate 2tb - Seasonic XP1000 - Dell U2711 - Pioneer Todoroki 5.1 Storm G5 - MCW60 - EK-VGA HF - MCP355 XSPC Restop - PA120.4 - Scythe GT 4x120 1440/1850rpm http://i3.photobucke...sa09/z77rog.jpg

#7 p0is0n

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Posted 08 March 2012 - 02:19 PM

Out of curiosity, have you tried to just skip 1250 core and go higher like to 1275 or 1280 as your chip may just have some bad spots. At least your memory clocks through the roof. I dont think I've seen any real world 7970 clocks at 1.3ghz or more, probably cherry picked review samples inflating expectations. Have you tried using the power setting in ccc? Thats something I'm yet to play with.
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#8 tunksy

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Posted 08 March 2012 - 04:33 PM

great temps on the core man, really suprising considering the copper shim inbetween. pity about the overclock though 1300 would have been sweet, must have been some cherry samples reviewers got (well played AMD, wellplayed..)
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#9 Dasa

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Posted 08 March 2012 - 04:58 PM

there is a number of people out there with reference cards that reach 1300+ on water just none of the asus custom pcb cards yet some that get 1300+ in 3dm11 find its not stable in all things though looks like this card crashes and resets at 1300mv ocp maybe? so i will play a bit more and try get a balance between crashing due to to much v and crashing due to not enough... 1275mv seemed ok at this gpu temp reached 45c and vrm reached 92c 1238mhz 1275mv to much? and the card crashes but recovers 1225mv perhaps to little it crashes and i have to reset the pc 1250mv locked up and needed to be reset tried using occt fur rather than heaven for stress testing but heaven only makes the system draw 320w occt had it drawing 440w and would detect errors right away even at 1200mhz giving up for now but id say its safe to say this card isnt going past 1200mhz 24\7 without mods

Edited by Dasa, 08 March 2012 - 05:57 PM.

2600k@4.8GHz 1.38v - Z77-GENE - 2x4g 1600 8-9-8 - 7970 1150\7000MHz 1.15v - OCZ Synapse 120g Seagate 2tb - Seasonic XP1000 - Dell U2711 - Pioneer Todoroki 5.1 Storm G5 - MCW60 - EK-VGA HF - MCP355 XSPC Restop - PA120.4 - Scythe GT 4x120 1440/1850rpm http://i3.photobucke...sa09/z77rog.jpg

#10 Dasa

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Posted 26 March 2012 - 04:39 PM

just soldered a 10k vr to ground on the pll and its gone from 887mv to 897mv now to see if it helps edit tried up to 950mv but it didnt make any difference still locking up when i try ~1225-1250mhz so i have removed the mod guess i will just have to make do with ~1200mhz max first gpu i have ever owned that hasnt responded at all to water\extra v is kinda disappointing looking back over what past cards managed 9700 55% 275-430mhz x800xtpe 15% 520-600mhz (didnt oc 5mhz till it was on water with pencil vmod) x1900xtx 20% 650-783mhz 8800gt 38-49% 895mhz depending if you go from 650mhz pre oc model or the 8800gt default of 600mhz gtx480 33% 700-930 7970 20-30% 1200mhz pre oc model 1000mhz stock 925

Edited by Dasa, 27 March 2012 - 09:12 AM.

2600k@4.8GHz 1.38v - Z77-GENE - 2x4g 1600 8-9-8 - 7970 1150\7000MHz 1.15v - OCZ Synapse 120g Seagate 2tb - Seasonic XP1000 - Dell U2711 - Pioneer Todoroki 5.1 Storm G5 - MCW60 - EK-VGA HF - MCP355 XSPC Restop - PA120.4 - Scythe GT 4x120 1440/1850rpm http://i3.photobucke...sa09/z77rog.jpg

#11 p0is0n

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Posted 29 March 2012 - 05:48 PM

very informative, thanks Dasa. I eventually got my memory going up to ~1880 but had trouble going much higher. I am actually thinking my PSU may not be producing good enough, clean enough power. It is a fairly old 600W. I got a 1050W enermax about a week ago but I haven't installed it yet. Will give the benches another go like that. I think I could easily do over 11k in 3D11, but my CPU doesn't like decent RAM speed above 4.6GHz :( 10750 is about my PB so far. 5.2 @ 1600mhz probably wouldn't be much faster than 4.6 @ 2133 from what I've noticed. In terms of GPU though, unless a new PSU helps, I don't think I will get much better than 1280-1290 out of the core, depending on test, and 1870-1890 on the memory. I couldn't get the catalyst control centre power control to actually work/stay enabled, without using overdrive, which clocks too low.. from what I can tell it doesn't change much anyway. I really should get something to measure my draw at the wall.
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#12 Dasa

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Posted 29 March 2012 - 08:01 PM

the highest draw at the wall i have seen since getting the 7970 was in metro 2033 which peaked at 370w most things are ~270-320w
2600k@4.8GHz 1.38v - Z77-GENE - 2x4g 1600 8-9-8 - 7970 1150\7000MHz 1.15v - OCZ Synapse 120g Seagate 2tb - Seasonic XP1000 - Dell U2711 - Pioneer Todoroki 5.1 Storm G5 - MCW60 - EK-VGA HF - MCP355 XSPC Restop - PA120.4 - Scythe GT 4x120 1440/1850rpm http://i3.photobucke...sa09/z77rog.jpg

#13 p0is0n

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Posted 29 March 2012 - 08:46 PM

the highest draw at the wall i have seen since getting the 7970 was in metro 2033 which peaked at 370w most things are ~270-320w


is that including your 2600k @ its OC speed?
if so, thanks for sharing, means I was worried about nothing. given we have very similar rigs right now, i think its safe to assume I am probably not drawing more than 400w either.
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#14 Dasa

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Posted 29 March 2012 - 09:01 PM

that was with 2600k@ either 4.3ghz all auto v which is ~1.33v vdrop to ~1.26v or 4.4ghz ht enabled and llc enabled to prevent vdrop i just cant be bothered reflashing to that dam beta bios to push higher anymore gpu would would have been ~1200mhz v could have been anywhere from 1160mv to 1300mv i purchased a 1kw psu for the option to run three cards since it was only $10 more than the 860w model but probably wasnt worth it :)

Edited by Dasa, 29 March 2012 - 09:02 PM.

2600k@4.8GHz 1.38v - Z77-GENE - 2x4g 1600 8-9-8 - 7970 1150\7000MHz 1.15v - OCZ Synapse 120g Seagate 2tb - Seasonic XP1000 - Dell U2711 - Pioneer Todoroki 5.1 Storm G5 - MCW60 - EK-VGA HF - MCP355 XSPC Restop - PA120.4 - Scythe GT 4x120 1440/1850rpm http://i3.photobucke...sa09/z77rog.jpg

#15 p0is0n

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Posted 30 March 2012 - 02:45 AM

Cool, cheers, I remembered you had the 1kW Seasonic. I was not quite sure which PSU I wanted, but saw the opportunity to grab the Enermax 1050W for $160 which seemed too good. I haven't installed it as I am waiting to decide if I can be arsed sleeving it first. I mostly wanted to upgrade so that (a.) I have a 'decent' spare PSU and (b.) so that I can grab a second 7970 or even a 7990, eventually.
i7 2600k | Z68A-GD80 | 8GB RAM | CF 7970 | 120GB SSD | 1kW PSU | Butchered Case | Water Cooling | U2713H HP N40L | 16GB RAM | 7x WD 2TB | Ubuntu | ZFS




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