Overclock.net › Forums › Volt Mods › General Volt Mods › Graphics Cards Volt Mods › HD5870 Voltmod Issues...
New Posts  All Forums:Forum Nav:

HD5870 Voltmod Issues...

post #1 of 19
Thread Starter 
Hi there,
first i want you to excuse my poor english skills but i got some questions that only here in this Forum may be answered.

I'm running a Sapphire HD5870 Custom Card (Blue PCB) and a XFX 5870 XXX ZNDA in Crossfire and are kind of stuck in my overclocking efforts.
Just because i've been out of luck another time, both cards are very unclockable running stock voltages, so finaly i got both of them voltmoded:
-The XFX Card is flashed with the latest MSI R5870 Lightning BIOS so i am able to adjust voltage in MSI Afterburner
-for the Sapphire Card i'm using a Pencil-Mod, wich pushed voltage up to 1.275-1.35V, depending on load

All measuring is done with a digital 4.5 digit multimeter direct connected to the card(s)

Yesterday all stuff was fine, i was able to clock up to 950MHz on both cards, using 1.190V on the XFX and playing BF3 for hours. Only the temperatures on the XFX raised up to nearly 90° Celsius so i bought a Arctic Accelero Xtreme and mounted it today. Now temperatures are all fine(63°C/69°C) on both cards, but i ran into new problems today:

When i raise the voltage for the XFX in AB, i always have to measure if its apllied, just because very often the new voltages aren't applied and i have to change in AB from User-mode to Kernel-mode and back or change from 1.125 to 1.165Vcore Type to get it work. That's very annoing because this needs everytime a AB-Restart and sometimes even a system reboot. Also it occours that the voltage is being resetet while on load so my graphics driver chrashes and is beeing reseted by windows.
Additional AB is not very reliable about the applied voltages, sometimes it applies 1.3V or more even when only 1.2V is considered....mad.gif

So first question is:
Is it possible to get a lasting software voltmod for the XFX? I allready tried a modified BIOS using RBE and setting voltage to 1.25V, but this does'nt apply.
Would it be possible to flash a ASUS-BIOS to use another (more relieable) tool than Afterburner?
Or do i have to hardmod to the XFX-Board too? I'm not that fan of soldering on tiny graphiccard contacts, so a pencilmod or different tools would be welcome biggrin.gif

Second question i got:
I figured out, that my bf3-perfomance increases drastically when i oc the memory from 1200MHz to 1250MHz or more when GPUs are clocked to 950MHz. This results in smooth 50FPS+ and stable 99% GPU-usage without any stuttering on both GPUs. but it won't last very long and i get a BSOD depending on atikmpag.sys, think that points to an unstable videomemory? Am i right about that?

Hopefully i could determine my problems :-)

System configuration:
  • Asus M4A79 Deluxe
  • AMD Phenom II X6 1090T @ 4.0GHz @ 1.5V(BIOS) ~45°C max after 10 Hours Prime95 FFTs + 3DMark 06 Loop; Air-cooled by Noctua ND-D14 using 2xScythe Fans @ 190m²/h
  • 2x2GB/2x1GB; Totally 6GB DDR2-800 @ 833MHz
  • XFX 5870 XXX ZNDA 1024MB @PCI-X 16x; Air-cooled by Arctic Accelero Xtreme 5870-->Primary CF-Card
  • Sapphire 5870 Custom Blue PCB @PCI-X 16x; Air-cooled by Sapphire Vapor-X --> Second CF-Card
  • 3x Samsung Syncmaster 22" Eyefinity @ 5176x1050px
  • Chieftec CFT-750-14C 750W PSU
  • Antec Three Hundred Case
  • OCZ Vertex 2E 60GB System-HD
  • Samsung Spinpoint S-ATAII 500GB 7200rpm Data-HD
  • X-Fi Xtreme Gamer Fatal1ty PCI Sound-Card
bpcsl4lo.jpgziqzbtk5.jpg

Software:
  • Windows 7 Home Premium x64 SP1; all Updates
  • AMD Catalyst 12.1 WHQL clean installation
  • AMD CAP 2 12.1
  • MS Security Essentials
  • Logitech Gaming Software
  • MSI Afterburner 2.2 Beta 12 (had even more problems using 2.1 final)

Would be very happy if there is anybody with some useful suggestions.

best regards
post #2 of 19

have you looked into OCP mod for your GPU/PCB type? ... pushing voltage and speed can bring OCP much sooner than expected sometimes.. Inductor temps can affect it also.

 

*FYI- pencil mods are not that precise.. are you measuring your mods with Digital Multi Meter?  Or you relying on software for voltage readings?

post #3 of 19
Thread Starter 
Erm, it's kind of triggy to find matching tutorials, as my Sapphire card uses the same? PCB as the 5830 i think:
Just borrowed a few pictures from the radeon3D forum as my own camera isn't that good in taking close-up pictures:
http://s7.directupload.net/images/110627/g7vbhtj2.jpg
http://s7.directupload.net/file/d/2569/u3etl5tt_jpg.htm
http://s1.directupload.net/file/d/2569/pipmfruw_jpg.htm

Actually my Sapphire card looks that way, soldered some measuring lines for multimeter, just because i can't reach this pins when the card is build into my pc:
uvmyuv95.jpg

The Pencil mod i've done is based upon this tutorial:
http://www.youtube.com/watch?v=YtUoLUe_h3Q

Mesured resistance before adding graphite:
~5.95kOhm
After "painting"
~4.75kOhm
Voltage increased from 1.2V to about 1.275-1.35V depending on load. As i allready sad, all measuring on both! cards is done by my digital multimeter, just because i allready haven't found a tool that shows the correct voltages:
n6kw9pup.jpg

About OCP...Please forgive the dumb question but it's built in Over Current Protection, isn't it? How can i figure out if it's limiting? Tryed to google it but got no useable results O.o
Would be nice if you could give some advise about that :-)

For my XFX: I'll try to take some close-up pictures from the PCB-Backside, maybe then someone could help me out about a OCP Mod...

Inductor Temps? I suppose it's about the temperatures of the voltage regulators? Is there a way to read those temps via software?

thx in advance
Edited by uk3k - 2/19/12 at 7:16am
post #4 of 19
Thread Starter 
Here we go...As i said my camera sucks when taking close-up shots xD
XFX 5870 XXX ZNDA Backside of PCB:
bkw5dbnp.jpgpyzb939q.jpgqgrzug97.jpgxe3cmatv.jpg

Measuring Heavy Load (MSI Kombustor); voltage in AB set to 1.225V!!!
bnli6y57.jpg

Measuring Idle/Desktop:
ng8zym82.jpg

Left multimeter connected to Sapphire card, right multimeter connected to XFX card.

So anyone some ideas about OCP on both cards?

greets
Edited by uk3k - 2/19/12 at 6:52am
post #5 of 19

Well since you are using DMM's.. you should be able to see OCP if its happening... GPUv would go to .003v with solid screen and would take reset to correct. 

 

 **As for the XFX:

 

up6213.JPG

 

 the OCP pin is labeled IMAX .. you can pencil the resistor its connected to lower OCP.

 

 Im not sure about the IC on the Sapphire GPU.. couldnt make it out from the pic :o Not sure about the crashes... though if its not OCP, you may think of trying a different driver rev. Have you grabbed the latest copy of AB to use as well?

post #6 of 19
Thread Starter 
thx for the info, i'll check that. May the reset cause a driver depending BSOD?

"lower OPC" means to raise the threshold of maximum current?

I'm running MSI Afterburner 2.2 Beta 12, this is the latest version i've found.

Got another Question
q3eumjxm.jpg

The marked resistor is the penciled one on the Sapphire PCB. To do an alternative "real" hardmod could it be simply replaced by a 10kOhm potentiometer?

btw, the IC on the Sapphire board should be this one: http://html.alldatasheet.com/html-pdf/315811/ONSEMI/NCP5395T/217/1/NCP5395T.html
But theres no IMAX-Pin?

well, let's try to get a crash, will post results :-)

Update 1: Tried to force a crash using 980MHz in Crysis Timedemo Benchmark, game simply "disapears" after about the half of the timedemo, had to kill the process in taskmanager. Figured out that one gpu keeps on 100% load, about 1 minute later BSOD -->atimpag.sys occours but theres no voltage drop below load-voltages. Think OCP isn't responsible...

I'm gona try some different drivers....I s there a Catalyst Version someone could advise?

Update 2: Tried several drivers, results:
CCC 11.3c --> crashes when clocks are set higher than 925MHz in Crysis TD, Desktop freezes after reboot
CCC 11.12 --> crashes when clocks are set higher than 925Mhz in Crysis TD, Desktop freezes after reboot
CCC 12.2(8.94) --> crashes when clocks are set higher than 850MHz when Crysis TD starts, Desktop freezes after reboot
CCC 12.3(8.95) --> instant freeze after adjusting clocks of gpu or memory in AB

So i'm back on using CCC12.1, getting 950MHz GPU + 1270MHz Memory clocks stable in Crysis TD but running into Gamecrash (DX Device Removed error) after some time running BF3. Error occours sometimes after 1 minute, sometimes game runs fine for over 2 hours.

Can't believe 950MHz is all i can get...Also memory clocks suck, the XFX was clocked by manufacturer to 875/1300MHz but those settings never were stable, not even in single gpu mode.

But back to my problem:
Is there a way to softmod the voltages on my XFX so im not forced to use tools?
May i flash an EAH5870 BIOS to try iTracker? Got the strange feeling all the time somethings strange with AB....
Should i give the OCP-Mod a try?
Edited by uk3k - 2/19/12 at 10:59am
post #7 of 19

Lots to respond to.. I will do my best not to confuse you.

 

*For Sapphire - You would be attaching the 10k potentiometer to the marked resistor... not replacing. To do OCP mod on NCP5395 - lower resistance on 'ROSC'. Somewhere between 20-40% of stock value at 'ROSC' will offset ILIM and move IMON for OCP wink.gif.

 

 As for the 'flashing' - I would say definite NO: as both of the cards have different IC's for power control. Your best bet is to hardmod and set voltage manually.

post #8 of 19
I wanna pencil mod my 5870! ..but I have a different pcb frown.gif
my chip says vcf986 and p6213AJ
 
Thuban Powah!
(14 items)
 
 
CPUMotherboardGraphicsRAM
Xeon X5650 Asus P6X58D-E Sapphire HD 7950 G.Skill Trident-X 2600 CL10 
Hard DriveCoolingPowerCase
Samsung 840 pro Bong cooler / RASA waterblock Rosewill Capstone Gold 750 None 
MouseMouse PadAudio
cheap! Newegg box panel ibeats with onboard. 
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1075T w/2 cores locked @ 4.2+ M4a89GTD-Pro XFX Radeon HD 5870 8gb Samsung ddr3 1600 11-11-11-28@ 8-8-8-24 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility2 40gb WD Blue 500GB Lite-On RASA waterblock 
OSMonitorKeyboardPower
Windows & Linux Samsung 1080p 2 ms Dell Thermaltake TR2-800 
CaseMouse
Cooler Master Elite 330 (was) cheap 
  hide details  
Reply
 
Thuban Powah!
(14 items)
 
 
CPUMotherboardGraphicsRAM
Xeon X5650 Asus P6X58D-E Sapphire HD 7950 G.Skill Trident-X 2600 CL10 
Hard DriveCoolingPowerCase
Samsung 840 pro Bong cooler / RASA waterblock Rosewill Capstone Gold 750 None 
MouseMouse PadAudio
cheap! Newegg box panel ibeats with onboard. 
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1075T w/2 cores locked @ 4.2+ M4a89GTD-Pro XFX Radeon HD 5870 8gb Samsung ddr3 1600 11-11-11-28@ 8-8-8-24 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility2 40gb WD Blue 500GB Lite-On RASA waterblock 
OSMonitorKeyboardPower
Windows & Linux Samsung 1080p 2 ms Dell Thermaltake TR2-800 
CaseMouse
Cooler Master Elite 330 (was) cheap 
  hide details  
Reply
post #9 of 19
I'm able to adjust vGPU up to 1.3v on my stock non-reference XFX HD 5850 ZAFC v1.3 using Sapphire Trixx v0.4.21. Btw, that's the only version of Trixx that allows vGPU adjustment on my card. Special thanks to K31TH3R over at EOCF for providing the link. http://forums.extremeoverclocking.com/showthread.php?t=349730&highlight=trixx
GRX
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X4 965 @ 5.7Ghz Gigabyte 890FXA-UD5 XFX HD 5850 1160/1200 vmods -15c 4GB G-Skill Flares PC3 16000 
Hard DriveOptical DriveOSMonitor
WD Caviar Black 1TB Lite-On DVDR Vista/XP Acer 23.6" 
KeyboardPowerCaseMouse
MS Ultra 750W Benchtop FTW! Logitech 
Mouse Pad
Walmart Special 
  hide details  
Reply
GRX
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X4 965 @ 5.7Ghz Gigabyte 890FXA-UD5 XFX HD 5850 1160/1200 vmods -15c 4GB G-Skill Flares PC3 16000 
Hard DriveOptical DriveOSMonitor
WD Caviar Black 1TB Lite-On DVDR Vista/XP Acer 23.6" 
KeyboardPowerCaseMouse
MS Ultra 750W Benchtop FTW! Logitech 
Mouse Pad
Walmart Special 
  hide details  
Reply
post #10 of 19
Quote:
Originally Posted by Schmuckley View Post

I wanna pencil mod my 5870! ..but I have a different pcb frown.gif
my chip says vcf986 and p6213AJ


your IC is this one... trace out the 'FB' pin to its nearest resistor ;)

 

 

 

 

up6213.pdf 510k .pdf file

 

 

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Graphics Cards Volt Mods
Overclock.net › Forums › Volt Mods › General Volt Mods › Graphics Cards Volt Mods › HD5870 Voltmod Issues...