4890 Voltage Increase Methods

[Razrback16]

Ok guys, I bit the bullet and ordered a bunch of equipment yesterday to upgrade my current 4870/512MB Crossfire setup to 4890/1GB Crossfire and also ordered a whole new watercooling loop just for the vid cards as my current loop will not be able to sustain 2 4890s with tweaked voltage...which leads me to the topic of the thread...

Since I will be running 2x4890's in Crossfire -- (one is MSI brand, and one is HIS brand if it matters, both appear to be reference design) both will have full coverage waterblocks -- what application(s) is/are out there that will allow me to increase voltage to both cards permanently? (like a BIOS update or something in Rivatuner, etc.?)

Thanks very much -- this is the last piece to my puzzle. :)

[EniGmA1987]

supposedly you can use Rivatuner, with a config file tweak to work for the 4890, to increase voltage and then a scheduler in Riva to apply the higher voltage at each bootup. While I got the voltage increase to work, I could not figure out the scheduler to apply voltage at bootup :/

[SNiiPE_DoGG]

Rivatuner works wonderfully per this guide: http://www.xtremesystems.org/forums/showthread.php?t=217002&highlight=vt1165

you just need an extra config file to make riva recognize the 4890 - the zip is attached

http://rapidshare.com/files/240776922/RivaTuner.zip.html

[Razrback16]

Thanks very much for the help fellas!

[purecain]

new bios will be available soon so we can all just flash higher clocks with a bumped voltage... we will all sit at 1ghz.....

[OC Nub]

Looking forward to trying that bios.

[Razrback16]

Rivatuner works wonderfully per this guide: http://www.xtremesystems.org/forums/showthread.php?t=217002&highlight=vt1165

you just need an extra config file to make riva recognize the 4890 - the zip is attached

http://rapidshare.com/files/240776922/RivaTuner.zip.html

Sniipe I went to download this today now that I've got my 4890's installed but I get an error --

Error

This file is neither allocated to a Premium Account, or a Collector's Account, and can therefore only be downloaded 10 times.

This limit is reached.

To download this file, the uploader either needs to transfer this file into his/her Collector's Account, or upload the file again. The file can later be moved to a Collector's Account. The uploader just needs to click the delete link of the file to get further information.

Help. :) I really want that plugin to make Riva recognize my 4890s.

[SNiiPE_DoGG]

Sniipe I went to download this today now that I've got my 4890's installed but I get an error --

Error

This file is neither allocated to a Premium Account, or a Collector's Account, and can therefore only be downloaded 10 times.

This limit is reached.

To download this file, the uploader either needs to transfer this file into his/her Collector's Account, or upload the file again. The file can later be moved to a Collector's Account. The uploader just needs to click the delete link of the file to get further information.

Help. :) I really want that plugin to make Riva recognize my 4890s.

http://rapidshare.com/files/243148752/RivaTuner.zip.html :toast:

[Darth_Penguin]

this thread is being bookmarked!

[Razrback16]

http://rapidshare.com/files/243148752/RivaTuner.zip.html :toast:

You sir, are the man. Thanks!

[Razrback16]

Alright tweaking is under way via AwardFabrik's Voltage Factory. Stock volts allow me to go to 925MHz/1080MHz on both cards stable in Crysis for 1+ hours of gaming. Above this (tested up to 975MHz at stock volts) doesn't cause crashes, but it does cause artifacting. Load voltage on both cards @ stock is 1.31 volts. I'm now bumping to 1.35 volts to see what we can get.... :)

** What is the max safe recommended gpu core voltage on a 4890 that's on straight water?

[Darth_Penguin]

** What is the max safe recommended gpu core voltage on a 4890 that's on straight water?

I asked a similar question and didnt get an answer but I have seen people recommending 1.4 volts as being safe on water

[Razrback16]

Thanks for the reply DP.

Latest findings are 1.38 volts allows 975MHz core clock stable on both cards in Crossfire. No artifacts. Before I push to 1GHz, I am curious if RBE is flashing the 4890 successfully currently? I will likely need to flash both cards to open up higher clock availability in CCC.

[SNiiPE_DoGG]

as long as you temps comply <1.5vGPU on water

[Darth_Penguin]

as long as you temps comply <1.5vGPU on water

Good to know. I cant wait to get my card in. Stink that ups takes 5+ days to go cross country :(

[Razrback16]

1.40 volts allows 1GHz core clocks on both cards, stable. VRM temps are getting outta control though ~100*C even with the full cover WBs. I may just hold there. Mem is stable @ 1080MHz.

[SNiiPE_DoGG]

Volterra PWM's are specified for 125C operation

[OC Nub]

Was able to get 1000mhz core to pass furmark 400 seconds. Upped the voltage to 1.35. The numbers look low to me, before I was getting better fps. Do I need to take the second card out and retest? I disabled cf in CCC.

[OC Nub]

Ok, took the card out of the bottom slot and reran fur. FPS look better, think it was running at 8x.

[mattkosem]

1.40 volts allows 1GHz core clocks on both cards, stable. VRM temps are getting outta control though ~100*C even with the full cover WBs. I may just hold there. Mem is stable @ 1080MHz.

My VRMS touch 80C max with EK 4890 LT blocks at 1000/1000 with 1.42v. Is your block mounted securely?

--Matt

[Razrback16]

My VRMS touch 80C max with EK 4890 LT blocks at 1000/1000 with 1.42v. Is your block mounted securely?

--Matt

Too many tubes to get down in there and really look (running two loops, not very organized :)), but during inspection of the blocks after installation, everything LOOKED good. Maybe your loop is just more efficient, or better contact for your VRMs? Going by what Sniipe said, if 125*C is operating temp, I'm still under that so I'm ok with that for now. This is as hot as my house gets during the summer as well (~75*F) so hopefully I can survive the summer and enjoy the ~63*F once it starts cooling down. :D

Can anybody chime in with their experiences pushing the core with up to 1.5 volts on water? What did your temps look like for the v-regs?

[SNIPoR]

i got Asus EAH4890 VT , using RT v2.24, i set the Vcore to 1.5 and ran furmark, and i got temps of 43~45c TOPS,


room temp = 26c
Defaults clocks with wc

http://img195.imageshack.us/img195/188/10513765.jpg



1.5v and 1010MHz on core

http://img111.imageshack.us/img111/5963/55786078.jpg

[LiveLongerDays]

http://rapidshare.com/files/243148752/RivaTuner.zip.html :toast:

Tried this link and it's dead. Is there another?

[ownage]

GPUtool rulez!
http://forums.techpowerup.com/forumdisplay.php?f=69

http://www.techpowerup.com/downloads/1383/GPUTool_Community_Technology_Preview_1.html

[SNIPoR]

Tried this link and it's dead. Is there another?

http://downloads.guru3d.com/RivaTuner-v2.24-download-163.html

[OC Nub]

Any tips on fixing a bricked asus eah4890? Was in the middle of a flash and atiwinflash stopped responding.

[Rattle]

stick it in the second slot, use atiflash, set it up on a USB stick. flash the second card, never use winflash its junk.

[OC Nub]

The brick is running again, kept getting an error. Had to force flash it. Only thing I can think is I edited the HIS bios by mistake and flashed to the wrong bios. This card may have been better off dead, it runs hot despite the dual fans and copper pipes, is buggy as hell. OC the mem and the screen flickers, use smart doctor and open up GPUZ at the same time the screen flickers. Has not been a pleasant experience.

[Rattle]

yeah gpuz can make things weird, sound stutter and stuff.. so the card was always kinda crappy? Cuz you may not have a ref card there and the HIS is a ref bios, maybe some diff things going on. try to locate the exact bios version and reflash see if it helps..

[OC Nub]

The card was crappy from day 1 right out of the box. I flashed using the original bios. Its not a reference card, it has the black pcb and a different cooler than the reference cards, and some "special" cap. Basically its a pos but it does look nice and is very quiet lol. I had modded the bios using RBE and had no isues flashing it before but this time atiwinflash hung up and stopped responding. Next time I will use dos.

[OC Nub]

If this Asus EAH4890 was the only card available from ATI I would be back on the green team in a second. A real POS!!

[Rattle]

rma that :banana::banana::banana::banana::banana:

[largon]

^Eh?
RMA? There's nothing wrong with the card. Only the user.

The card was crappy from day 1 right out of the box.Do elaborate.
None of what you've posted here points to any hardware fault.

This card may have been better off dead ... Basically its a pos ... A real POS!!:rolleyes:

[trakslacker]

Just a heads up: W1zzard over at TechPowerUp is building a successor to AtiTool that has built-in voltage scaling for 4890s. Its in Tech Preview form now (pre-aplha), but already works very well for voltage increase purposes. I'd stick with Rivatuner for now to adjust clocks.

http://www.techpowerup.com/downloads/1383/.html

[Razrback16]

Just a heads up: W1zzard over at TechPowerUp is building a successor to AtiTool that has built-in voltage scaling for 4890s. Its in Tech Preview form now (pre-aplha), but already works very well for voltage increase purposes. I'd stick with Rivatuner for now to adjust clocks.

http://www.techpowerup.com/downloads/1383/.html

Absolutely great news. I always liked ATI Tool and W1zzard's work.

[justin.kerr]

I have been using GPUtool since I first received my 4890's. For voltages, seems to work great, works on core/mem overclocks to, it is a bit buggy, but I think it is a great tool, and wonder why more people don't use it?

[Gaul]

Just a heads up: W1zzard over at TechPowerUp is building a successor to AtiTool that has built-in voltage scaling for 4890s. Its in Tech Preview form now (pre-aplha), but already works very well for voltage increase purposes. I'd stick with Rivatuner for now to adjust clocks.

http://www.techpowerup.com/downloads/1383/.html

that's right, i used that ! very nice combined :)

[Johnmark]

Can someone please show me where the VRM's are on the Sapphire 4890 vapor-x Card.
I can I.D. the CPU,RAM,Mosfets but not sure about the VRM's

TIA

John

[Johnmark]

How are you guys measuring the VRM's temps? A software tool or thermocouple or??
GPUz does not show the VRM(mosfet) temps , nor does everest?

Just mouted my old Maze 4 on my non-standard Sapphire Vapor-X which ran very hot and unequal on air. Now all temps are under 50c (running Fur) and within a couple of degree's of each other!! :)
Using the stock cooler for the VRM's and the heatsink does not get hot. Pasted some Swiftech memory sinks on mem. modules and they run nice and cool as well. I'm a happy camper now! Just wish I had bought a standard board because I can't RMA the EK full coverage block I bought because I cut the thermal tape before realizing the WB wasn't going to fit.
Running 930 mhz of the core and 1160 on RAM with no artifacts and no voltage increase.

[largon]

Johnmark,
Your non-reference card has no ability to measure VRM temps.

[Martin.v.r]

bios flash Guide here whit more voltset
http://www.octeamdenmark.com/forums/showthread.php?t=3958