GTX 260's @ 4890 Clocks

phanbuey · 11-06-2009, 04:46 AM

So i was just dorking around with NiBiTor today and found how to flash voltages to the 65nm (192SP) gtx 260's permanently using the register modification feature they added, gave it a little bump to 1.215 and voila... stable 850 mhz core and 1700 mhz shaders (yeah technically not 4890 clocks, but 850Mhz core and i had to make a catchy title

).

gonna try for 900-1000 at 1.3ish tomorrow... gpu's haven't broken 40C yet. Memory and drivers are massively bottlenecking the vantage score.

couldn't believe my eyes though.

gotta get some ZZz's for tonight.

lelouchvi · 11-07-2009, 03:00 PM

very nice =] going up to 850 Mhz water cool GPU can be push much harder ^^ want to see 900 Mhz!!

BraveSoul · 11-07-2009, 03:07 PM

impressive. i wonder how many ppd's u can get with these 2 in folding oc vs stock

phanbuey · 11-07-2009, 03:18 PM

Quote:

Originally Posted by BraveSoul

impressive. i wonder how many ppd's u can get with these 2 in folding oc vs stock

probably around 8.2K per card for the smaller WU's and around 6 for the 511's - while the GPU's are watercooled, the VRM's are just under an aluminum heatsink...

That kind of sucks (and something I didnt anticipate) since even at 1.215 volts the VRM's will break 110C after 24h of folding

During hours of gaming they don't really break 70C so i can try to push the cards.

UPDATE:

Well it seems like voltage are really not as important as temps for these cards.... I cant seem to stabilize the 864Mhz core and 1728 shaders even with 1.3v

They just render noise and the computer hard locks... ill try a bit more later...

BraveSoul · 11-07-2009, 03:27 PM

sounds like something is being pushed really hard over here,,, 110c thats very hot,, cant even breath it in will burn the lungs let alone touch it

Binge · 11-07-2009, 03:31 PM

full cover is NEEDED on an OC that good, but damn that's a good OC.

wolf · 11-07-2009, 03:40 PM

damn man............daaaaaaaaaaammmmmnnn that is a killer overclock, even for w/c that is just awesome to see.

makes me wish my 260's had voltage adjustment....

11-06-2009, 04:46 AM	#1
phanbuey Join Date: Nov 2007 Location: Miami Posts: 2,798 (3.79/day) Thanks: 921 Thanked 492 Times in 435 Posts System Specs	GTX 260's @ 4890 Clocks So i was just dorking around with NiBiTor today and found how to flash voltages to the 65nm (192SP) gtx 260's permanently using the register modification feature they added, gave it a little bump to 1.215 and voila... stable 850 mhz core and 1700 mhz shaders (yeah technically not 4890 clocks, but 850Mhz core and i had to make a catchy title ). gonna try for 900-1000 at 1.3ish tomorrow... gpu's haven't broken 40C yet. Memory and drivers are massively bottlenecking the vantage score. couldn't believe my eyes though. gotta get some ZZz's for tonight. __________________ “In this economy. Scott. It's almost feels like you are lapping your ass when using it.” -erocker PC modding >>>http://www.mypimpedpc.co.uk/

System Name:	CSS build
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Motherboard:	MSI P7N 750i SLI Platinum
Cooling:	360MM rad, 240MM RAD, CPU and 2xGPU WB's, MCP355
Memory:	4GB DDR2 833Mhz 5-5-5-15
Video Card:	2X GTX 260 756 core// 1566 sh // 1242 mem
Harddisk:	2x 160GB WD 16MB Raid 0 // 500GB 7200.11
CD/DVD Drive:	SATA +/- DVD-RW
CRT/LCD Model:	22" HP 1680x1050
Case:	Modded Lian-Li V1000B Plus
Sound Card:	Yes
PSU:	750W Corsair // 62amp Single Rail
Software:	Windows 7 64 Bit - Build 7100
Benchmarks:	Superpi 1m in 11.7 sec, P22554 3dMark Vantage - 20K GPU score.

System Name:	REII
Processor:	i7 920 @ 4.0 (1.25v)
Motherboard:	Rampage II Extreme
Cooling:	GTZ water block
Memory:	Patriot 1600Mhz 3x2Gb
Video Card:	IGame Colorful 275 GTX
Harddisk:	Seagate Barracuda 7200.12 (3 in Raid)
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Sound Card:	Supreme X X-Fi
PSU:	Cossair
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System Name:	Air Filtration Tower \|\|Folder
Processor:	PhenomII 940@3.0 \|\|athlon64 3500@2.5
Motherboard:	Gigabyte MA790GP \|\|micro somthing
Memory:	ocz 1066DDR2 8gb \|\|1gb
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System Name:	CSS build
Processor:	Q9650 @ 3.997 444x9 - 1777FSB
Motherboard:	MSI P7N 750i SLI Platinum
Cooling:	360MM rad, 240MM RAD, CPU and 2xGPU WB's, MCP355
Memory:	4GB DDR2 833Mhz 5-5-5-15
Video Card:	2X GTX 260 756 core// 1566 sh // 1242 mem
Harddisk:	2x 160GB WD 16MB Raid 0 // 500GB 7200.11
CD/DVD Drive:	SATA +/- DVD-RW
CRT/LCD Model:	22" HP 1680x1050
Case:	Modded Lian-Li V1000B Plus
Sound Card:	Yes
PSU:	750W Corsair // 62amp Single Rail
Software:	Windows 7 64 Bit - Build 7100
Benchmarks:	Superpi 1m in 11.7 sec, P22554 3dMark Vantage - 20K GPU score.

11-07-2009, 03:00 PM	#2
lelouchvi Join Date: Nov 2009 Location: UK Posts: 7 (0.52/day) Thanks: 0 Thanked 1 Time in 1 Post System Specs	very nice =] going up to 850 Mhz water cool GPU can be push much harder ^^ want to see 900 Mhz!!

11-07-2009, 03:07 PM	#3
BraveSoul Join Date: Jul 2008 Location: New York Posts: 217 (0.45/day) Thanks: 14 Thanked 21 Times in 19 Posts System Specs	impressive. i wonder how many ppd's u can get with these 2 in folding oc vs stock

11-07-2009, 03:27 PM	#5
BraveSoul Join Date: Jul 2008 Location: New York Posts: 217 (0.45/day) Thanks: 14 Thanked 21 Times in 19 Posts System Specs	sounds like something is being pushed really hard over here,,, 110c thats very hot,, cant even breath it in will burn the lungs let alone touch it

11-07-2009, 03:31 PM	#6
Binge Join Date: Sep 2008 Location: PA, USA Posts: 4,203 (9.73/day) Thanks: 521 Thanked 999 Times in 846 Posts System Specs	full cover is NEEDED on an OC that good, but damn that's a good OC. __________________ *Peripheral- noun - computer peripheral, peripheral device ((computer science) electronic equipment connected by cable to the CPU of a computer) "disk drives and printers are important peripherals" Read my latest peripheral review and please join/support the TPU Peripherals Club.

11-07-2009, 03:40 PM	#7
wolf Join Date: May 2007 Location: Perth, Australia Posts: 2,987 (3.22/day) Thanks: 564 Thanked 367 Times in 320 Posts System Specs	damn man............daaaaaaaaaaammmmmnnn that is a killer overclock, even for w/c that is just awesome to see. makes me wish my 260's had voltage adjustment.... __________________ *Wolf. Nothing is unmoddable, nothing remains stock.* “my goal is speed, full utra, and extreme gaming ” -Ephraim

System Name:	Sly
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Motherboard:	Asus P6T Deluxe V2
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Video Card:	HD5870 @ 970/1275 stock vcore + 9800GT Physx
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CD/DVD Drive:	Liteon Jobbie
CRT/LCD Model:	Viewsonic VX2835wm 28" 1920x1200 3ms
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Software:	Windows 7 X64
Benchmarks:	lots of blam

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