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OC'ing an EVGA GTX 580 FTW HC2

post #1 of 4
Thread Starter 
Hi there,

I just got my (cheap) fingers on a EVGA GTX 580 FTW Hydro Copper 2 and included it in my WC loop.
(order is Res > Pump > GPU > CPU > TFC 360 (big, pull) > Res)

Now I want to start with OC'ing the card to see how far I can push it - but I have no experience with OC'ing graphics cards yet.

So I downloaded EVGA's tools Precision, E-LEET and OC Scanner.
Without touching the voltages I raised the Core-Clock to 983MHz (linked with the Shader-Clock).
I ran OC Scanner for about 5 mins, temps raised to a maximum of 41°C, OC scanner reported a total of 13 artifacts.

So what does it mean now?
How can I really test for stability?
Will I experience driver resets or the like if I go too high with the clock?
When do I need to raise the voltage?
Why is E-LEET limiting the maximum voltage to 1.15 Volts?

Can someone enlighten me and give me a few tips?

Thx & Regards

Michael
Beckser
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i7 980x @ 4.16 GHz 1.28V Gigabyte X58 UD5 EVGA GTX 580 FTW Hydro Copper 2 24Gb Corsair 2000 Dominator 
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samsung 840 pro LG Blueray writer.. Watercool Heatkiller 3 Fedora 20 x64 
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NEC Multisync PA271W Corsair K70 Corsair HX850 Cosmos S 
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Beckser
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CPUMotherboardGraphicsRAM
i7 980x @ 4.16 GHz 1.28V Gigabyte X58 UD5 EVGA GTX 580 FTW Hydro Copper 2 24Gb Corsair 2000 Dominator 
Hard DriveOptical DriveCoolingOS
samsung 840 pro LG Blueray writer.. Watercool Heatkiller 3 Fedora 20 x64 
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NEC Multisync PA271W Corsair K70 Corsair HX850 Cosmos S 
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post #2 of 4
Thread Starter 
Wow.. not a single response.. must have been really silly questions.. sorry for that.

To answer my own questions:

1) So what does it mean?

Nothing. E.g. Furmark runs fine while 3dMark11 (the driver) was crashing during benchmark.

2) How can I really test for stability.

3Dmark11 benchmark + BF3 1/2 hour.

3) Will I experience driver resets or the like if I go too high with the clock?

yes.

4) When do I need to raise the voltage?

Whenever the driver crashes.

5) Why is E-LEET limiting the maximum voltage to 1.15 Volts?

The bios locks to 1.15 Volts max. Needs modified Bios to unlock higher voltage settings. Will use NiBiTor for that.


So far I was able to push the card to 980 MHZ Core-clock (synced with Shader-clock) and 2220 MHz using 1.15 Volts.
It seems that I can go higher with the mem, but it has only little effect on the 3Dmark11 results.
Temp for the GPU maxed out at 42°C after 1/2 hour BF3 with my current WC setup.
Edited by Becks21 - 12/30/11 at 4:23pm
Beckser
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CPUMotherboardGraphicsRAM
i7 980x @ 4.16 GHz 1.28V Gigabyte X58 UD5 EVGA GTX 580 FTW Hydro Copper 2 24Gb Corsair 2000 Dominator 
Hard DriveOptical DriveCoolingOS
samsung 840 pro LG Blueray writer.. Watercool Heatkiller 3 Fedora 20 x64 
MonitorKeyboardPowerCase
NEC Multisync PA271W Corsair K70 Corsair HX850 Cosmos S 
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Beckser
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CPUMotherboardGraphicsRAM
i7 980x @ 4.16 GHz 1.28V Gigabyte X58 UD5 EVGA GTX 580 FTW Hydro Copper 2 24Gb Corsair 2000 Dominator 
Hard DriveOptical DriveCoolingOS
samsung 840 pro LG Blueray writer.. Watercool Heatkiller 3 Fedora 20 x64 
MonitorKeyboardPowerCase
NEC Multisync PA271W Corsair K70 Corsair HX850 Cosmos S 
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post #3 of 4
+1 for figuring it out on your own.

Would have helped you out if I saw this earlier, but oh well.
However, I think 42C for a WC setup isn't bad at all.

But when you're watercooling, you shouldn't be watching the Coretemp as much.
If possible check your VRM temps as they're the ones most likely to limit any of your overclocks.
post #4 of 4
Thread Starter 
thx for your reply.. smile.gif

unfortunately the block covers the VRMs so I cant measure the temp.. and I wasnt in the mood yet of ripping off the block to see what kind of VRMs are used..
Beckser
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 980x @ 4.16 GHz 1.28V Gigabyte X58 UD5 EVGA GTX 580 FTW Hydro Copper 2 24Gb Corsair 2000 Dominator 
Hard DriveOptical DriveCoolingOS
samsung 840 pro LG Blueray writer.. Watercool Heatkiller 3 Fedora 20 x64 
MonitorKeyboardPowerCase
NEC Multisync PA271W Corsair K70 Corsair HX850 Cosmos S 
  hide details  
Reply
Beckser
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 980x @ 4.16 GHz 1.28V Gigabyte X58 UD5 EVGA GTX 580 FTW Hydro Copper 2 24Gb Corsair 2000 Dominator 
Hard DriveOptical DriveCoolingOS
samsung 840 pro LG Blueray writer.. Watercool Heatkiller 3 Fedora 20 x64 
MonitorKeyboardPowerCase
NEC Multisync PA271W Corsair K70 Corsair HX850 Cosmos S 
  hide details  
Reply
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