gpu chiller

Nickolp1974

Nickolp1974

Nickolp1974

Soldato
Joined
15 May 2012
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Louth, lincs
Thinking about a chiller for my gpu, just for benching purposes.
If i use the quick disconnects in my loop and on the chiller, so i can swap between the 2, will this work???
and will a 400w model be enough to take temps right down??? and any idea to what sort of temps i could achieve?
 
Nickolp1974 said:
Thinking about a chiller for my gpu, just for benching purposes.
If i use the quick disconnects in my loop and on the chiller, so i can swap between the 2, will this work???
and will a 400w model be enough to take temps right down??? and any idea to what sort of temps i could achieve?
Click to expand...

I am thinking the same Nick and the QD's will work a treat. If someone finds a way to overvolt without hard modding the Titans, I will get them for sure.

Not sure on the wattage needed, so hopefully someone can advise for me also (sorry to hijack).

Mine will be a 3930K and 2 Titans.
 
no by all means, carry on, you just reminded me about voltage!!! not seen a hard mod for the lightning, will keep looking, otherwise maybe a waste of time.
 
You probably won't find a hard mod guide for a Lightning unfortunately, due to the ABX factor Gregster mentioned, anyone over-volting them will have ABX and a different vBIOS :(

The 'Cheap' chiller way would be to use a mutli-loop setup, a pelt and a heat-exchanger for dual loops (koolance make one iirc). You could just kill the pelt/second loop (for cooling pelt) when its not required. Though I don't trust pelts at all and this setup would require 3 loops :o

You could try asking at XS or similar for some volt-modding advise though, a shame no-one has figured out artmoney for the 7970's yet :(
 
pgi947 said:
You probably won't find a hard mod guide for a Lightning unfortunately, due to the ABX factor Gregster mentioned, anyone over-volting them will have ABX and a different vBIOS :(

The 'Cheap' chiller way would be to use a mutli-loop setup, a pelt and a heat-exchanger for dual loops (koolance make one iirc). You could just kill the pelt/second loop (for cooling pelt) when its not required. Though I don't trust pelts at all and this setup would require 3 loops :o

You could try asking at XS or similar for some volt-modding advise though, a shame no-one has figured out artmoney for the 7970's yet :(
Click to expand...


So realistically unless i can get more volts into it, extra cooling will be pointless?
 
Pretty much :(

As it is everyone is playing ball with MSI and the NDA for ABX so its not likely we'll even see a leaked release any time soon. Not unless our MSI rep has gone soft anyway (I'm not sure who our rep is now scottieB has moved back to OcUK).
 
yeah, trust me I spent hours on end trying to find an alternate method to get +1.35v on a Lightning, every time a dead end :(

Edit: Not sure if i'm looking at the right thing but I think if we can determine the I2C bus location it may be possible to change voltages by prompt?

I've just tried using RivaTuner.exe (not recognised) and MSIAfterburner.exe prefixes with the /riX,70,1A command, it does spout something about I2C but it doesn't give me a hex location :(

Somewhere in this code may give us the key to higher volts, as iirc these are the values Artmoney changes on the fly, and probably the values that are modified in ABX:

[I2C_BUS_06_DEV_30]
Offset00=27 89 47 A5 DB 5E F7 30 A0 08 8A 00 87 7F CF 9A
Offset10=A0 03 FF 06 E0 00 00 00 00 B3 60 9A 28 00 2A A0
Offset20=33 C5 DB DD 30 55 00 00 F9 15 8A 05 05 11 00 FF
Offset30=F4 33 8F 00 80 38 39 80 53 2D 00 00 00 A1 42 54
Offset40=50 CF 00 00 3B 39 39 39 39 39 39 3B A1 F0 F1 85
Offset50=D9 81 D9 7F D9 98 02 06 D8 1A D0 9C B9 34 BB 0C
Offset60=F0 15 F0 20 20 00 00 00 00 00 00 1A 8D 00 00 00
Offset70=00 03 00 03 55 00 80 FF 00 00 A0 4E 8E 00 00 30
Offset80=D8 0B D1 4D D8 E6 D2 1E BA 1B BA 3C 0E 00 03 02
Offset90=FE 07 00 00 C0 00 00 64 00 00 1C 1F 1F AD 50 00
OffsetA0=00 00 00 00 00 00 00 00 00 03 00 00 03 FF 9F 00
OffsetB0=00 00 0F 00 00 00 00 FF FF 88 88 01 0A 0A FF 88
OffsetC0=01 01 01 00 00 C0 8B 50 57 67 8B CF CF CF 01 80
OffsetD0=00 00 00 00 80 33 00 00 08 00 01 00 00 00 00 00
OffsetE0=00 00 00 15 15 00 00 00 01 00 00 00 00 01 00 00
OffsetF0=00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Click to expand...

Edit: meh maybe not, bit beyond me but I can't see any changes in the hex when changing VDDC values...must be something a little deeper in the program.
 
Last edited:
Cheers Nick and I am on Titans now, so not sure that would work (and I am a little too scared to try on air).

Art money was a godsend for Lightnings and I am sure there must be away to get it done for 7970's.
 
Let me know what you decide on a chiller Nick. I don't want to get one if the gains are very minimal but will if I can adjust voltages without hard modding.

I am pretty sure you will have some fun on that 280 and hope you get it modded ok :)
 
Dont know if i'm brave enough to mod my lightning yet!! with my current loop temps, i could still do with another 0.1-0.15v, with a scythe GT5400 blowing on top of card max temp i get is 32c on the vrm's and about 42c on the core with 1.362v pumping through it. Might give cammy a shout and see what his thoughts on on the subject, he has a chiller and did have lightnings.
Over on kingpin cooling forums some one is in the process of hard modding a Titan ;)
 
Kingpin already hard modded a titan ;)

Though I suspect he will have had a helping hand from EVGA :p

Greg, whats the hard volt limit on the Titans then? Or is it entirely TDP locked? Haven't been following them much.

Before diving in with a soldering iron Nick, you could try asking Unwinder if loop holes exist to give a raised voltage in Afterburner, they should do a 'water' edition with 1.4v available. The stock limits are too low IMO.

Either that or try blag an MSI rep, you should be able to find out who to ask via the MSI forum. Remember getting it legitimately means your warranty is void though
 
They are 1.212V with no chance of going higher without hard modding. FTW420 has hard modded his but is having problems with the TDP max of 300W.

I am sure EVGA added more power, as no way was that score Kingpin got with just 300W and 1.212V :D
 
I'm sure EVGA gave him all the help he could ever want in the vBios dept and working around the TDP.

Wish Nvidia would stop being such girls about voltages :p
 
Vince took off the component that sets the limits. Although I doubt it was him specifically who did it. He also changed all the power phases / VRM with E power boards as the current phases are so feeble over 1.4 -1.45 kills em.

Shammy did all this for Andre and I suspect he help Vince too. Shammy changed Andres card to DC2 and Matrix style phases.

I have mods in the pipe line but incomplete as yet. I wish Nvidia would have just allowed a product like the Lightning much easier for the clockers among us. They don't warranty any overclocked card anyway so I don't get where the issue is as they don't loose revenue through constant RMA its only the vendors who carry the can, doing this at there own risk but charging end users a premium for overclocked GPU.
 
Wasn't Nvidias fear that every novice under the sun would overclock/overvolt to the point of a dead card and land them with a heap of RMA replacements? Or something along those lines.

Lightnings all the way, but MSI really need to offer those on water a little more in terms of voltage headroom, the fact I can get a higher VDDC on my reference MSI cards then I can my Lightnings say quite a lot.
 
Thats not the reason mate as Nvidia offer no warranty to vendors who offer overclocked GPU for returning the chip back to Nvidia. As soon as a manufacturer offers a clocked version or one with uprated parts that particular versions warranty is from the manu only and they can claim nothing back from Nvidia at all.

Hence why I dont really know why Nvida care about none reference designs.

As far as the Lightnings go I get what your saying but MSI do have to honor warranty so can offer high voltages to the masses. I don't see why 1.4v is not out of the question though.
 
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