I think 2.3v is fine for 24/7 as long as you have decent cooling, I know that the memory might actually get hoter from the NVS5
I did some research on the memory IC's a while back, they are designed to run something insane like 2.5 or 2.6v
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I think 2.3v is fine for 24/7 as long as you have decent cooling, I know that the memory might actually get hoter from the NVS5
I did some research on the memory IC's a while back, they are designed to run something insane like 2.5 or 2.6v
So the memory get hoter from the NVS5 than stock...that no good!!
Are you sure??
I purshase a NV5 just for my memorys!! They clock 1080MHz with stockcooling! ;)
I've heard in many cases stock cooling actually does worse then running them bare. As for the NVS5, I don't have any proof of this, but if you take the concept that the same peice of copper which is being heated to 50-70C from the core, while the memory is running at a much lower temp, there is bound to be some unwanted heat transfer :P
As for my video card being flakey, I just tested it again, it must be the motherboard. I'll go on further in my other thread to not jack this one
Maby, but i think it will be a little too heavy for the poor card to handle :DQuote:
Originally Posted by MikalCarbine
My 7800 is sold now, so i cannot try it :(
What if I used a card keeper to hold the bagger up?
http://www.sidewindercomputers.com/cackfornvand.html
I have this one from using my NV Silencer, keeps the card nice and sturdy.
Wow... never heard of those, but that's pretty hot. My mobo to expansion slot is not 90 degrees, so it requires bending to fit my pci-e cards in nicely.
My 7800GT must be the worst card ever...I cant even do 1100MHz on my memorys!?
I dont get any artifact but it freezing and get a pattern over the windows.
My core handle 490MHz. I havent done any mod yet but I will never reach 500@1200 ...thats my goal!
I hope more voltage will help but I dont now.....
I share your same problem, with stock volts I can't even break ~490/1170. but with 2.3v my memory flies (or used to, I think it is artifacting at 1260 instead of 1370 like it used to)
The 7900 series is going to be very promising for high clocks, but why bother when G80 is SO close
Edit: At 1360 I get such SLIGHT artifacting, sometimes a couple red/white or discolored pixels appear on the screen. I am wondering if I should up from 2.31v or get better memory cooling
I tryed this pencilmod but it did not work so well. I decreased the resistance to ~575ohm (~2.25V) but after 20 sec in windows my screen freeze with a pattern over the sreen!? No Iám running with org. voltage again.
Can the freq to PCIex slot have effect? My setting is 100 (org).
What more can I do/test??
i can run 525/1220 and that's only with the bios 1.5v trick. i'll be doing a hard mod next month when i go back to work and my soldering desk:D i'm gonna have to get rid of my stock copper hsf though for some nice reliable voltages and temps. it's not the card but rather the luck of the draw when it comes to overclocking.
1.5v is the most volt u can give with only softmod, right?
just picked up a used evga 7800gt (445/1070 version -518?) and did did the vcore hardmod and penciled for 2.26v vmem. w/ 1.66v on the core it is stable at 570/1380 - watercooled - core under load hits 38c. seems like pretty typical clocks.
Hmmm....why cant I oc my memory "at all".....not even with more voltage!?
Can I do the biosmod (nibitor) with a cd?...I dont have a floppy.
I never use a floppy when flashing a bios... I have a very small FAT32 partition on my harddisk, because FAT32 is accessible in DOS, and I boot up from my old Win98 cd and then select boot from cdrom.Quote:
Originally Posted by Vega
Then I go to the small FAT32 partition, where my flash utils and files are, and flash whatever needs to be flashed :)
Holy crap Garret that's one hell of an idea! Why didn't I ever think of that? Haha. Hi everyone, I'm new to XS as you can tell, I have yet to set my avatar and such. I was just wondering what everyone was getting for max core clocks. I ask only core clocks because it seems everyone is limited on they're memory at around 1380~1400MHz. I for one have been running 621MHz at 1.83v 24/7 without a hitch. I think we all know that there's no point in trying to squeeze a few more MHz out when you won't see a performance jump until you get 27MHz. I seem to have hit a voltage wall and I don't think running at 648MHz is attainable. Has anyone found what the max voltage is on these cores before they simply won't boot? Am I going to fry my beautiful performing card if I try to find out? Haha, if there's some form of over voltage protection I'll shoot for 650MHz even though I don't think it's happening. Currently I can't seem to break 61°C during RTHDR (that insanely awesome HD real time rendering 3D app.) or whatever It's called. That seems to push my card the hardest, during BF2 I tend to see temperatures in the fiftys. I plan on going H2O when I go SLi, but first I need those G71's to cause some price drops. Also has anyone else seen memory stability degradation over time? I'm not sure if I ran them a little high to start, but Infineon says these are good for 2.5v and I was running 2.4v 1400MHz hella stable, but recently I've had recently I've had issues running 1400MHz and only do it for benching purposes, heck I can't even run 2.4v at 1390 anymore without that weird screen grid lock up deal, I now run 1390MHz at 2.3v 24/7. So I guess the purpose of this post was to find out two things, what has everyone been maxing out on the core (don't bother telling if you haven't hard volt modded yet), and has anyone else seen this memory degradation. If you have please tell what voltages you were running at to start and such. Thanks!
Mikal, I'm sorry to see that you lost that much on your memory, have you tried starting from ground zero and seeing what you can get at lower volts? Like in the 2.1~2's? That's what I did and found that I was artifact free at around 2.18, but after a few minutes to hours, almost randomly, It'd just lock up and I kept getting that until 2.3v. This Infineon seems to be some really weird stuff. Sorry for the lengthy post, good luck all!
:welcome:Quote:
Originally Posted by TehVince
648MHz on a 7800GT? :eek: nice clocks m8
My memory maxes out before 1200MHz on stock volts, I haven't tried lower yet. I am getting my water cooling setup this week/early next week and I plan to have this baby MAXED out or kill it trying, gota squeeze all the performance I can get until I upgrade :P As for what you were saying about the 27MHz increases, I though the new BIOS locked all 3 clocks to the same frequency?
I wish I could do the volt mods. *cries*
But, after installing my Arctic Silencer originally I got quite high temperatures, higher then what I got on the stock cooler. But when I re-installed the stock cooler I got even higher temperatures. So somehow I have managed to increase the heat output of my 7800GT without actually doing a voltmod. :mad:
I get 45C on idle and 65C on load.
Damnit!
Hmm, maybe I did do a volt mod unknowningly. :p:
*checks highest coolbits clocks*
EDIT: WTF!!!
Highest clocks are 466/1030 WTF
Were 480/1150 before installing the silencer WTF!!
God damnit, the arctic silver that made its way to some of the resistors around the core needs a good clean out....
Was that the only reason for 27MHz being the magic number? I noticed that they always were the same, but they wouldn't always run at the specified speed. I can't exactly remember an example, but like I'd set the core to 555MHz and the true clocks showed in Riva Tuner wouldn't budge until I hit a certain speed. Sometimes they'd even round up. I've just heard everywhere that 27MHz was the magic number. My understanding is that 27MHz is the reference clock kind of like a divider. I guess if they're all locked though I could try for a few more MHz. Good luck with your water cooling and I hope your memory clocks improve. I feel sorry for Bob and his Arctic Silencer... What kind of thermal paste are you using?
Bob's dead, no need to feel sorry for him. :stick:Quote:
Originally Posted by TehVince
I'm using Arctic Silver 5.
The newer BIOS files change this, mine are all 1:1, which may be why I can't seem to get by 500MHz, I'd like to bet that one of the cores or whatever they are called haha cannot get past 500 :S I have to try one of those delta BIOS once I get my water cooling :cool:Quote:
Originally Posted by TehVince
Are you sure you applied it correctly? I mean, personally I think they suck, but that's just me. I feel that if your temps are that bad you're most likely screwing something up. People say that their clocks increase with no delta bios. I'll do some testing when I get home to see if this 27MHz deal is still true. I suspect that it might.
Yes I am, I even reinstalled the stock cooler and the stock cooler showed higher temperatures too. I've also got a VF700-CuLED sitting around because it's worse then the silencer.Quote:
Originally Posted by TehVince
But yeah, I've remounted it numerous times and it is as tight as it will go, the paste was spreaded across the die with the right amount.
I'm sorry to hear that, I don't think there's any real solution to fix your problem. I know the silencer uses a totally different mounting system than mine, but I'd think the Zalman was similar, when I first installed this one it took me alot of time to figure out the right tension on the diagonal mounting bracket. If I didn't get it perfect it resulted in temperatures hitting 90 degrees, obviously I quickly closed ATi tool everytime I failed to get it seated correctly, but still. Have you checked to make sure that the goo is getting sufficient contact to the core? Try putting the TIM just on the core and then press the heatsink on, pull it off, and check to see how much it spread out. If you're doing it right I don't know what to say.
I had a silencer with my 6800GT and it was horrible, after 15 resttings and a whole lot of AS5 wasted I bought the VF700, couldn't be happier with it, now my MCW60 is in ;)
Hey Guys,
Long story short guys I accidently broke my 7800GT when removing the GPU voltage mod because I was selling it. Since it broke the buyer did not want the card anymore (who could blame him). So I still have the card and now I want to fix it.
I did the same GPU voltage mod that everyone has done using the 5k or 10k variable resistor (VR). The one where one leg of the VR gets soldered to a ground and the other leg gets soldered to one side of the corrent capacitor.
Well when I was removing the votage mod to sell the card I accidently broke off the correct capacitor and lost it. The cap broke off very cleanly and I think there is a good chance I will be able to replace it without much problem. The only thing I need to know is what value that capacitor is so I can get a new one.
With that said does anyone know what the value is of the capacitor used in the 7800GT GPU voltage mod? If not, would someone measure it for me with their multi-meter? I have looked through many threads here and over at XS Forums looking for high-resolution pictures of that area of the 7800GT but have found none that wouuld clear enough to see what the value was on that capacitor.
I just got a new 7900GT that unfortunetly needs to be RMAed so I want to fix my old 7800GT so I will have a card/computer to use while my 7900GT is away at eVGA! Thank you guys very much, I apprecaite your help!!!