OCing your HD 3870 X2 talk

Kirby123 · May 25, 2008

i have a HIS HD 3870 X2 and my best i have run on stock cooling is 918/1053 each core.... it shuts off some times... i know its my cooling and my voltage is to low... well that was when i was using my GA-P35-DS3L mobo. now im using my P5K, havnt tried it on my P5K yet but i am about to

HydroIT · May 25, 2008

Did you change the voltage?

Kirby123 · May 26, 2008

no i have it on auto so i not sure if it changed or not... and since i dunno how to work the p5k green im not sure ....

AphexDreamer · May 26, 2008

Well I guess you can use me as a refrence. I have mine at 943/1053 with 1.400 Volts stock cooler and it runs just fine.

HydroIT · May 26, 2008

AphexDreamer said:
Well I guess you can use me as a refrence. I have mine at 943/1053 with 1.400 Volts stock cooler and it runs just fine.

How did you change the voltage then?

AphexDreamer · May 26, 2008

HydroIT said:
How did you change the voltage then?

Using Computer Bases BIOS Editor. I specified my Clocks and Voltage (Max 1.4000) and then Flashed each of the cards BIOS's.

HydroIT · May 26, 2008

AphexDreamer said:
Using Computer Bases BIOS Editor. I specified my Clocks and Voltage (Max 1.4000) and then Flashed each of the cards BIOS's.

I'm sorry, I thought this was about a single 3870x2, not a crossfire of two 3870?

AphexDreamer · May 27, 2008

HydroIT said:
I'm sorry, I thought this was about a single 3870x2, not a crossfire of two 3870?

Yes it is as Single 3870X2 not a crossfire, so for the confusion. A single 3870X2 ike the one I own has two sperate diffirient size BIOS's and so does yours.

Kirby123 · May 27, 2008

who else has the p5k asus mobo? i have a HIS HD 3870 X2 and i wanna know a good stable oc for it

HydroIT · May 27, 2008

AphexDreamer said:
Yes it is as Single 3870X2 not a crossfire, so for the confusion. A single 3870X2 ike the one I own has two sperate diffirient size BIOS's and so does yours.

Ok, so could you link me to a tutorial about flashing the bios or something?

AphexDreamer · May 27, 2008

Sure I have one of my own.

http://forums.techpowerup.com/showthread.php?t=57907&highlight=HD3870X2

Just look at post number 22.

Good Luck.

:toast:

philbrown23 · May 27, 2008

I got my sapphire up to 985/1450

mrw1986 · May 27, 2008

My 3870X2 isn't even stable at 900/1000...it always crashed in 3DMark06 in FireFly Forest...my temps on the card are WAY below average so I wonder what the deal is.

AphexDreamer · May 27, 2008

philbrown23 said:
I got my sapphire up to 985/1450

Wow Can I see a GPUz verfication? Were you able to bench at that speed? I'd LIke to try and hit that.

Kirby123 · May 28, 2008

mrw1986 said:
My 3870X2 isn't even stable at 900/1000...it always crashed in 3DMark06 in FireFly Forest...my temps on the card are WAY below average so I wonder what the deal is.

you have to bump up your voltage if you want your card to be stable... i know once the 4 series comes out mostlikly im going to go corssfireX with my card...

i bumped up my volces to 1.4 and i am stable at 918/1053

Wile E · May 28, 2008

mrw1986 said:
My 3870X2 isn't even stable at 900/1000...it always crashed in 3DMark06 in FireFly Forest...my temps on the card are WAY below average so I wonder what the deal is.

Perhaps it's actually slightly undervolted. Would explain both the temps, and the crappy clocking.

HydroIT · May 28, 2008

AphexDreamer said:
Sure I have one of my own.

http://forums.techpowerup.com/showthread.php?t=57907&highlight=HD3870X2

Just look at post number 22.

Good Luck.

Thank you!

Looking into that right now

I'm assuming that by "NOTE: BACK UP ANY DATA ON THE FLASH DRIVE. IT WILL BE LOST." you meant, DO NOT back up any data on the flash drive?

Also, do you use the same switches for the flashing process on both cores? (-pa)?

mrw1986 · May 28, 2008

Wile E said:
Perhaps it's actually slightly undervolted. Would explain both the temps, and the crappy clocking.

How do I up the voltage? Also, my temps were bad until I brought my fan up to 45%.

trt740 · May 28, 2008

what fan setting do you guy use my card is stable at 878/1900 fan set to 35 percent and it stays under 65c. I realize normal temps for these cards underload are high 70cs. Also is there a good aftermarket cooler.

AphexDreamer · May 28, 2008

HydroIT said:
Thank you!

Looking into that right now

I'm assuming that by "NOTE: BACK UP ANY DATA ON THE FLASH DRIVE. IT WILL BE LOST." you meant, DO NOT back up any data on the flash drive?
Also, do you use the same switches for the flashing process on both cores? (-pa)?

Well I ment back up any data on the FLash Drive to your computer since any data on the Flash Drive will be lost with the format.

and yes you do use -pa for flashing both BIOS

ex.

atiflash.exe -pa R680A.bin
atiflash.exe -pa R680B.bin

AphexDreamer · May 28, 2008

trt740 said:
what fan setting do you guy use my card is stable at 878/1900 fan set to 35 percent and it stays under 65c. I realize normal temps for these cards underload are high 70cs. Also is there a good aftermarket cooler.

Mine is at 100 Percent and is 32C at Ideal and never above 50C on load. 945/153.

HydroIT · May 28, 2008

AphexDreamer said:
Mine is at 100 Percent and is 32C at Ideal and never above 50C on load. 945/153.

100%?
That should be quite loud.

WinFlash doesn't open on my Vista x64. I would really prefer to flash the card through windows.

trt740 · May 28, 2008

AphexDreamer said:
Mine is at 100 Percent and is 32C at Ideal and never above 50C on load. 945/153.

my god must sound like a leaf blower

AphexDreamer · May 29, 2008

trt740 said:
my god must sound like a leaf blower

IONO, I guess I"M Just used to it. Its never bothered me or anyone else in my family so I just keep it.

Wile E · May 29, 2008

mrw1986 said:
How do I up the voltage? Also, my temps were bad until I brought my fan up to 45%.

Voltmod?

System Name	My computer
Processor	E8400 Intel Core 2 Duo @3.8ghz
Motherboard	p5e
Cooling	XIGMATEK
Memory	g.skillz 2000mhz 4 gb
Video Card(s)	HIS HD 4870 (crossfired)
Storage	160GB 10k raptor
Display(s)	19" none widescreen LCD
Case	none?
Audio Device(s)	On Motherboard
Power Supply	750W rosewell

System Name	My computer
Processor	E8400 Intel Core 2 Duo @3.8ghz
Motherboard	p5e
Cooling	XIGMATEK
Memory	g.skillz 2000mhz 4 gb
Video Card(s)	HIS HD 4870 (crossfired)
Storage	160GB 10k raptor
Display(s)	19" none widescreen LCD
Case	none?
Audio Device(s)	On Motherboard
Power Supply	750W rosewell

System Name	Unknown
Processor	AMD Bulldozer FX8320 @ 4.4Ghz
Motherboard	Asus Crosshair V
Cooling	XSPC Raystorm 750 EX240 for CPU
Memory	8 GB CORSAIR Vengeance Red DDR3 RAM 1922mhz (10-11-9-27)
Video Card(s)	XFX R9 290
Storage	Samsung SSD 254GB and Western Digital Caviar Black 1TB 64MB Cache SATA 6.0Gb/s
Display(s)	AOC 23" @ 1920x1080 + Asus 27" 1440p
Case	HAF X
Audio Device(s)	X Fi Titanium 5.1 Surround Sound
Power Supply	750 Watt PP&C Silencer Black
Software	Windows 8.1 Pro 64-bit

System Name	Unknown
Processor	AMD Bulldozer FX8320 @ 4.4Ghz
Motherboard	Asus Crosshair V
Cooling	XSPC Raystorm 750 EX240 for CPU
Memory	8 GB CORSAIR Vengeance Red DDR3 RAM 1922mhz (10-11-9-27)
Video Card(s)	XFX R9 290
Storage	Samsung SSD 254GB and Western Digital Caviar Black 1TB 64MB Cache SATA 6.0Gb/s
Display(s)	AOC 23" @ 1920x1080 + Asus 27" 1440p
Case	HAF X
Audio Device(s)	X Fi Titanium 5.1 Surround Sound
Power Supply	750 Watt PP&C Silencer Black
Software	Windows 8.1 Pro 64-bit

System Name	Unknown
Processor	AMD Bulldozer FX8320 @ 4.4Ghz
Motherboard	Asus Crosshair V
Cooling	XSPC Raystorm 750 EX240 for CPU
Memory	8 GB CORSAIR Vengeance Red DDR3 RAM 1922mhz (10-11-9-27)
Video Card(s)	XFX R9 290
Storage	Samsung SSD 254GB and Western Digital Caviar Black 1TB 64MB Cache SATA 6.0Gb/s
Display(s)	AOC 23" @ 1920x1080 + Asus 27" 1440p
Case	HAF X
Audio Device(s)	X Fi Titanium 5.1 Surround Sound
Power Supply	750 Watt PP&C Silencer Black
Software	Windows 8.1 Pro 64-bit

OCing your HD 3870 X2 talk

Kirby123

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HydroIT

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Kirby123

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AphexDreamer

HydroIT

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AphexDreamer

HydroIT

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AphexDreamer

Kirby123

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HydroIT

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philbrown23

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mrw1986

AphexDreamer

Kirby123

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Wile E

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HydroIT

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mrw1986

trt740

AphexDreamer

AphexDreamer

HydroIT

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trt740

AphexDreamer

Wile E

Power User

System Name	Dominator
Processor	INTEL C2Q Q6600 FTW!!
Motherboard	ASUS P5Q-E!!!
Cooling	TEC cooled cpu, everything else is under water :D
Memory	4GB CELL SHOCK D9GMH 1066MHZ/4GB CRUCIAL REDS
Video Card(s)	4850 (VT)/ 4850 IN CROSSFIRE!
Storage	western digital= 1X 250GB, 1X 500GB, IDE 160GB (BOOT DRIVE ONLY). SEAGATE FREE AGENT 500GB EHDD
Display(s)	viewsonic 19" hd widescreen
Case	ROCKETFISH FOR NOW :(
Audio Device(s)	ONBOARD WORKS JUST FINE FOR ME :p
Power Supply	ULTRA X3 1KW MODULAR
Software	win vista ultimate 64 TWEAKED!!!
Benchmark Scores	http://valid.x86-secret.com/show_oc.php?id=434759 3dm06: http://service.futuremark.com/compare?3dm0

Processor	Intel i7-5930k
Motherboard	ASRock Taichi X99
Cooling	Phanteks PH-TC14PE
Memory	4x8GB HyperX FURY DDR4-2666 15-17-17-15
Video Card(s)	MSI GTX 1070 Gaming X 8G
Storage	1x Plextor PX-512M6S SSD, 1x WD 750gb HDD, 2x Hitachi 2TB HDD, 1x Seagate 4TB HDD
Display(s)	2x Dell P2314H
Case	Fractal Define R4
Audio Device(s)	Onboard
Power Supply	Corsair AX860i
Mouse	ROCCAT Kone Pure Color White
Keyboard	Corsair K95 RGB - Cherry MX Brown
Software	Windows 10 Professional x64

System Name	The ClusterF**k
Processor	980X @ 4Ghz
Motherboard	Gigabyte GA-EX58-UD5 BIOS F12
Cooling	MCR-320, DDC-1 pump w/Bitspower res top (1/2" fittings), Koolance CPU-360
Memory	3x2GB Mushkin Redlines 1600Mhz 6-8-6-24 1T
Video Card(s)	Evga GTX 580
Storage	Corsair Neutron GTX 240GB, 2xSeagate 320GB RAID0; 2xSeagate 3TB; 2xSamsung 2TB; Samsung 1.5TB
Display(s)	HP LP2475w 24" 1920x1200 IPS
Case	Technofront Bench Station
Audio Device(s)	Auzentech X-Fi Forte into Onkyo SR606 and Polk TSi200's + RM6750
Power Supply	ENERMAX Galaxy EVO EGX1250EWT 1250W
Software	Win7 Ultimate N x64, OSX 10.8.4

System Name	Apple Bite
Processor	Intel I5
Motherboard	Apple
Memory	40gb of DDR 4 2700
Video Card(s)	ATI Radeon 500
Storage	Fusion Drive 1 TB
Display(s)	27 Inch IMac late 2017