frequency will not kill memory....temps/voltage will.
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frequency will not kill memory....temps/voltage will.
Qimonda dies, its been proven many times, with the 8800GT and now the 4800 cards, my memory is ok, at 1075 its fine, im going t leave it here and see if it gets any worse or not, well see in 2 weeks lolQuote:
Originally Posted by Blkout
pretty nice overclock :)Quote:
Originally Posted by 0ut0fstep
I read about modding the backside somewhere else as well. Basically you add an aftermarket cooler for the GPU only (such as HR-03GT or Accelero S1) but cut/modify the stock heatsink to still cover the VRMs? Any pictures of this?
Also, right now NCIX has a good deal on the Accelero S1 R2... $19.99
I'd like to save on shipping and buy it with the card. Is it possible to mod the stock heatsink as per above to cover the VRMs while leaving the Acclero to do its job? I know the Accelero S1 is a little weaker than the HR-03GT, but with the turbo module (or without) is it still worth it? I think I also read its necessary to do something to the VRMs as otherwise they are not covered by Accelero S1. So whats a better idea 4870 stock mod, or aftermarket sinks? Also FINAL question - does the Accelero S1 cover the memory modules? Or do they need aftermarket sinks for SURE? I know I'm such a damn noob with all these questions... sorry. I love overclocking and have only just started to get into it last year. Hopefully someday I'll be the one answering all the questions. :yepp:
what is "GPU Temp (MEMIO)" in GPU-Z? Mine is reading 107C at idle? I just tried some Company of Heroes while GPUZ was running on my 2nd monitor and it crashed twice in a row within seconds but when i dont have GPUZ open its solid. Sounds like GPUZ has a few bugs to work out. I have a fan pointed directly at the VRM and memory along with ramsinks on everything so I dont really believe that 107C. This is with the latest GPUZ version 0.2.7. Would someone else give this a try for them and see if they get 100C + for that reading too?
Quote:
Originally Posted by GAR
I have 3 friends with 8800GT's all overclocked for over one year now and none of them have had issues. I really think your opinion about Qimonda is FUD. The fact that the memory is only required to run at 900MHz and is able to run FAR above that proves that there's no quality issue.
Do you even have a 4870? What bases are you speaking on that the memory can run "far" above the stock specs? As for memory frequency not having an effect, well it does because just like any chip more speed + more volts = more heat, which means that there is more risk to kill your ram. 10% OC is a big OC, and quite likely stable OC on the ram combined with a core OC will not be achieved using stock voltages on either. Just under 1100, possibly, over that no way.Quote:
Originally Posted by Blkout
Oh as an FYI, so far I have worked with about 4-5 4870s.
Umm overclocking doesn't volt mod your card....it uses a slight bit more power as someone in other 4870 overclocking thread her proved. Like .003 volts change both idle and load from 750/3600-790/4400.
Proper cooling/ fan speed fix to keep things cool as you overclock is needed to avoid overheating causeing degredation however. Granted thats just my take on it.
Ah forget it...Quote:
Originally Posted by Caveman787
4870 OCs with no voltmods that go past 825/1075 are not going to be 100% stable in almost any case. That has been my experience so far with 5 cards, various brands. I think this qualifies as a pretty good sample of cards so I'm fairly confident in what I am saying. Hence the reason why I said more speed + more volts = more heat. I know that for every single OC I did on the 4870 past those figures I stated above some sort of volt mod was required to achieve rock solid stability in every tool.
The memory dying from "OC" conversation has died lets move on to something a bit more interesting.
okay. GAR also claims ATI cards suffer from bad build quality and their AA sucks. let's discuss that now! :rofl:Quote:
Originally Posted by 0ut0fstep
Let's get back to OC discussion...
Anybody got their hands on a PowerColor 4870 PCS+ yet? They seem to have modified the power supply system on the card by using 4+2 VRMs as opposed to stock 3+2. Do these play nice? I heard that the initial tested version was blowing up in FurMark just like it siblings do...apparently the VRMs were getting too toasty.
Currently running mine at 800/1000, nice even numbers. I haven't bothered finding the max stable oc that works for every game
No, I sold my 4870 about two weeks ago to buy a 4870x2 which I have now. I had my 4870 for just over 2 weeks with no issues running 790/1100MHz. That was looping some benchmarks overnight as well.Quote:
Originally Posted by dejanh
FYI, stock specs are 900MHz for the 4870, if it can run anything above that, it's just a bonus, not a requirement.
Also FYI, when memory can't handle a certain speed, you get artifacts or lock-ups, either way, you'll bump the speed down to retain stability so no damage can be done regardless. It's VERY dfficult to kill memory unless you're increasing voltage considerably.
Why are you speaking of volt mods? This most recent discussion was in regards to memory degradation at stock voltage, which there is none.Quote:
Originally Posted by dejanh
how does your X2 clock? can you clock the cores independently with Overdrive? is the second core a bad overclocker because of the extra heat?Quote:
Originally Posted by Blkout
Haven't tried to be honest. From a few reviews I've seen on the 4870x2 overclocked, it doesn't overclock all that far, usually around 780 core and about 1000 memory. The framerate gain is so minimal that's it doesn't seem worth it for the increased the heat output. Since one core obviously runs hotter than the other, I'm going to hold off overclocking until I get my EK FC water block in the next week or so.Quote:
Originally Posted by xMrBunglex
Some morons have said in numerous threads including this one that 1100 give or take a little on the ram is degrading it, First of all there is absolutely no data to support those claims and anyone singing that song should be taken outside and shot "Dejanh!". Secondly experience shows that overclocking ram's frequency would become grossly unstable and probably fail before you can physically damage it, I wouldn't know tho since I've never done that. anyway personally I would only worry if you had dangerous temperature levels or had the voltage too high... But that's just my opinion, GDDR5 is so new and until long term overclocking effects are known, No one can truly be 100% besides the engineers that designed it so far. "In my opinion of course" I must stress the opinion part, I hate it when these "experts" make statements like Dejanh did as if it is a tested, confirmed and known fact. When my card bricks from running at 1100 I will be sure to personally apologize. Until then just emphasis that it's merely your "OPINION" and stop saying it like its a fact. just to those who are reading this thread and wouldn't know any better.
^ lol, look at this guy. I thought XS filtered kids out of their forums. Reported. Moderator, can you please remove that post?
Thanks.
You want to get the most out of the GDDR5 first, IMO.
That's flamebaiting, my friend. He didn't say the 4870 build quality sucks, just that the 280 was better. And in his opinion the AA was better on the 280, but in no way did he imply that the ATI AA sucks. You're taking things out of context and spreading lies. For the record, I actually think that ATI has better AA, but I do agree with his comment on the build quality....at the end of the day though, those things don't really matter. Everyone is entitled to their own opinion....let it go.Quote:
Originally Posted by xMrBunglex
Quote:
Originally Posted by L-MoS
While I do agree with you, you can't call the guy a moron even if you want to. Got to be nice on the forums. At least it's obvious you know what you're talking about though when it comes to memory.
Since GAR is MIA, maybe you would like to take his place and back up your claim as Nvidia having better build quality considering it's a well known fact that there are numerous GTX 200 series cards overheating and/or dying. While everyone has an opinion, it's pretty obvious when someone is posting non-factual data because they have an agenda.Quote:
Originally Posted by mega_slayer82
Blkout, let me make something clear because I want to put this memory discussion to rest...Quote:
Originally Posted by Blkout
Running the memory higher than its maximum specifications will NOT pose a risk to the memory unless you happen to be feeding the memory more voltage as well. However, with increased frequencies you need to up the voltages too to achieve 100% stability in most cases which means that you are now both pushing the memory over specifications in terms of speed AND you are feeding it more volts as a result. Now, it is the "more volts" part that will kill your memory, and depending on how much voltage you are feeding this can happen sooner than later. What I was getting to before is that for 100% stability in every tool you will not be able to simply OC the memory to 1100. You will have to up the voltages as well, which then brings us back to what I was saying about voltages killing the ram.
Here are the Qimonda specs...
http://www.qimonda.com/download.jsp?...rev100_www.pdf
Critical voltage is 2.00V, maximum frequency 4GHz, but you cannot run the ram even close to this without it failing very fast (speaking of volts specifically, read the specs). Probably the maximum safe voltage is 1.75V - 1.8V, but I would not be comfortable running it at even this voltage if I am hoping to have the use of my card for more than 1-2 years.
Is this clear now or am I going to have to repeat myself again? I think people misunderstood what I was saying before but I am pretty sure that even my original post stated speed + more voltage = more heat...implicitly this was supposed to state that such a combination may and likely will result in broken ram. This is XS after all, and most people that post here in overclock and voltmod threads will be posting results and clocks of volt modded cards. This is not a "mellow-systems" forum with a "let's see what our stock card can do" motto. The first thing I did after I got my cards was solder VRs on them so I can adjust voltages :p:
In relation to this, I do not think that NVIDIA has better build quality per-say. However, they do have better partners like EVGA and XFX. This has probably been beaten to death before in so many discussions. I think what makes the NVIDIA guys better is the CS, warranty backing their cards, and looser restrictions on what voids your warranty. They are just more enthusiast friendly basically. That's all. I've had my share of faulty NV cards as well.Quote:
Originally Posted by Blkout
Yeah buddy, I have an agenda. That's why I had the 4870 in my hands at Fry's ready to buy before finally deciding on the 260. The 4870 is a great card....I may go for a crossfire setup some day. Like I said in the other thread, an overheating card would be defective, which is a QC issue. That's different than comparing two cards that are known to be manufactured properly. Nvidia, like ATI are always quick to fix their QC issues. Get your logic straight.Quote:
Originally Posted by Blkout
My 4870 ran at 1100MHz on stock voltage and stock cooling, looping various benchmarks overnight. Never once had an issue with it the 2 weeks that I owned it. As I stated before, the only way to kill memory is to either cause it to overheat or by increasing the voltage, thus causing it to overheat. Either way, it's not happening without modding the video card which is my point all along. It was GAR and a few other that clearly know nothing about memory that claimed the memory degraded simply by overclocking it. It was BS and I was simply pointing it out.Quote:
Originally Posted by dejanh
And for what it's worth, EVGA and XFX are rumored to be leaving Nvidia.
As much as this hurts being that I own a 4870 he's sort of right about this. I do wonder why 4870 VRMs are so hard to cool and why a better solution was not devised. 120C+ temps on VRM are not exactly nice.Quote:
Originally Posted by mega_slayer82
On a different note, I asked a Diamond rep what do their engineers use to stress test their cards and his answer was "a couple of loops of 3DMark06". Ouch :shakes:
Whenever I hear "overclocking" for me that really implies not just upping the frequencies, but also upping voltages. But that's just because of my typical process in overclocking :p: I do stand by the fact that if you up your core to about 800 and your memory to 1100 you will artifact in ATITool in 45min+ runs and FurMark will likely cause your card to crash. I was able to run looped benchmarks THAT WERE NOT ATITool, FurMark, or 3DMark06 TBTs for hours on end without issues, but as soon as you push the card to the max with one of those three the story changes. Anyway, I told people before to try it out if they do not believe it :)Quote:
Originally Posted by Blkout
One further thing worth noting is that different people have different standards on what they consider stable. For me I want 100% stability, all the time, in anything. Any less is not good enough especially if the product being tested is running at stock specifications (e.g., faulty 4870 XOC BEs).
In terms of the XFX/EVGA, those are just rumors IIRC. I remember reading that AMD will not partner with them for the fear of alienating all of their current manufacturers and making their products essentially obsolete. You can see this happening too because current ATI manufacturers do not come even close to the level that XFX and EVGA are at today.
Quote:
Originally Posted by dejanh
ATI guarantees their cards not to fail with the stock cooling solution. I fail to see how you can hold that agains them. They engineered and designed it. Are you saying that you know more than the ATI engineers?
No sir, an overheating card because of a poor design is most certainly not a QC issue. Nvidia has trouble getting good yields. It's rumored to be less than 40% from each wafer. My understanding is that the "fix" right now is that each Nvidia partner is to test each card before it leaves their facility. This is an effort to weed out the poor design flaws from Nvidia.Quote:
Originally Posted by mega_slayer82
Ok, well that's great. Can you tell that to Diamond then for me please? Because I tried and tried to tell them this, and tried, over and over again. And at the end after going through 5 of their cards with same results myself I decided to give up. Something about keeping the fan at 100%, my room sounding like an airport runway, and still not being able to stabilize their stock XOC BEs did not appeal to me after all those tries...Quote:
Originally Posted by Blkout
I think your first sentence should sayAlso, I am not sure what I am "holding against [ATI engineers]". I do not even remember mentioning them. In terms of knowing more than they do, maybe, you never know. I am an engineer too actually and I can guarantee you without a shadow of a doubt that if you think all engineers know their jobs you are sadly mistaken, and on top of that yes we too make mistakes :) Anyway, who even mentioned engineers...Quote:
Originally Posted by Blkout
Oh and I had to add this...
ATI only really engineered and designed the RV770. The card is made up of a crapload of components that ATI had nothing to do with from conceptualization right up to the finished product. They just chose off the shelf components to use to build and run the circuits on their cards. They came up with the reference specification, but that does nothing for the quality of particular components especially in large batches where issues are more prone.
Wrong. If it was poor design, then ALL the cards would be overheating which simply isn't true. You're filled with all sorts of faulty logic and FUD, aren't you?Quote:
Originally Posted by Blkout
Dejanh, I apologize for that buddy... I wasnt directly calling you a moron. It was more of a generalization directed toward the masses that have been making statements like such on topics that are unproven and based more on opinion and saying it like they are fact... You have to realize that people who are more or less new at this are goggling 4870 overclocking and coming here then seeing those commits and scares the :banana::banana::banana::banana: out of them... But I'm a stranger here and that just irked me :) So I'm sorry if you felt disrespected. Hope that's settled then.Quote:
Originally Posted by dejanh
Now as you mentioned, In some cases you do need to increase voltage at a point to maintain stability and if you do push it too far, Yes while stable even the memory *can* degrade and fail prematurely, But this is a touchy subject because its difficult to determine for sure if your RAM failing 2 years down the road was because you had it 500 mV out of spec :) and in the case of the 1100 on GDDR5, *MOST* ppl are not volt modding that do not plan on going beyond 800 while running at 1100, So that statement you made seemed more toward folks using CCC at 790/1100 and were time bombing their card. So I think it's safe to drop this now. You know where I'm coming from and I know where your coming from. Again no hard feelings earlier? I'll admit... that was a bit out of line back there.
I noticed your an Engineer too, Maybe that's why I bumped heads with you earlier! Well I'm an Engineering Technician, low on the totem pole in the engineering dept. But still in the family! And yea your right about engineers not knowing they're job... Our director of engineering is clueless to say the least!
what happened to this thread? why is Nvidia being mentioned at all in this thread? we shouldn't let arguments from other threads slip into this one and ruin it.
Poor design was choosing to use a 1.4 billion transistor chip with low yield rate. This is what causes so many failures.Quote:
Originally Posted by mega_slayer82
Give it up man, you have no leg to stand on.
Quote:
Originally Posted by dejanh
You went through 5 4800 series cards in just over a month? The RMA process at Diamond must be exceptional. That's sarcasm, I'm just not buying your story.
The difference between you, if you're even an engineer, and the ATI engineers is that they have a team of people that designed the video cards and I'm quite certain they get paid more than you do because they are better at what they do. Don't get upset, you know it's true also. I don't think they made a mistake. The 4800 series is an overwhelming success that seems to be a real thorn in your side. Either way, you'll have to get over it and accept the fact that ATI created a brilliant product this generation and Nvidia didn't. Even Nvidia's CEO admitted they underestimated ATI this round. If he can admit it, maybe you should too considering that he probably know a little more about this business that you do. :yepp:
Reported. This is the HD4870 overclocking thread only. No other hardware except the HD4870, and maybe the HD4850 should be mentioned here.
I went through 5 4870s in 15 days by returning them to NCIX and not Diamond. Diamond simply said "send it to us for testing and we will get it back to you". Not good enough. I only have 15 days to get a full refund so that's not going to fly.Quote:
Originally Posted by Blkout
In terms of them getting paid more than I do and on whether I am an engineer, and/or whatever else you said...
(1) It's foolish of you to assume that you know how much I get paid...
(2) I'm sure they are better at designing video cards. I don't design video cards, but I am both a software engineer and a hardware engineer (major/minor) :)
(3) 4870 is not a thorn in my side. Only the Diamond XOC BE is a thorn in my side and maybe the overheating VRMs. That's it. Otherwise, 4870 is an exceptional card. In fact, the whole 4800 series is exceptional.
I think you lost track of your opinions somewhere. I feel like you are having an argument with me but I am not sure over what exactly... :shrug:
Which is why there are more 260s than 280s. 280s are low yeild, yes, and many of them have to be dumbed down to 260s. But that doesn't mean the card is going to fail after you get it. If it works, it works....but if it's defective, RMA it. I see your point though...Quote:
Originally Posted by Blkout
All: Sorry for yet ANOTHER off topic post. Report me if you wish...
All of the 4870 threads have somehow been derailed and turned into non-informational pages of ati vs nvidia crap.
I'll try this again...let see if we can steer things on course this time...
Anybody got their hands on a PowerColor 4870 PCS+ yet? They seem to have modified the power supply system on the card by using 4+2 VRMs as opposed to stock 3+2. Do these play nice? I heard that the initial tested version was blowing up in FurMark just like it siblings do...apparently the VRMs were getting too toasty.
If anybody has the card, what were your results so far in trying to OC it?
Let's please stay on topic now...
http://shrani.si/t/1d/Av/2uoPG8Iz/img4879.jpg
http://shrani.si/t/1c/No/1HYJ7XFR/img4880.jpg
http://shrani.si/t/x/Dw/KACPZtp/img4881.jpg
27-28C IDLE, 31-32C Load
My card is flying under water:up:. I had problems with 820 mhz with stock cooler, now I dont have any problems with 860 mhz on core in 3DMark06. Problably time modding soon:up:
Now that's some home-brew cooling Balkan style :p:
Vrlo fino (nice) :up:
I not worry about looking, if it works its fine for me:D (you should see my bench table:up:)
BTW we are not on Balkan, we are south east Europe:p:
EDIT: What isaverage gain of voltmod?
Thank you, Captain Obvious...Quote:
Originally Posted by 0ut0fstep
:up:Quote:
Originally Posted by M-XXXX
In terms of what the voltmod will give you, it won't be much. The core will likely not go any higher than 890, and that is if you are very lucky. If you keep the memory lower then the core can be stabilized around 880-890 with a voltmod. Anything over 1.35V - 1.37V on the core will cause the card to become unstable however.
hi guys
how are these hd4870 watercooled temps? ok?
full load furmark
http://i34.tinypic.com/k2of7l.jpg
those vddc temps are pretty high.
I'm using the EK full cover block. The voltage regulator cooler provided kind of sucks.
it depends on which driver you're using. i think ATI gimped Furmark for the 8.8 beta driver so it wouldn't run as fast because people keep overheating with it. if you're running Furmark at full speed and your VRM's are at 80°, i'd say the VRM cooler is doing a great job.Quote:
Originally Posted by |Oc|REvO_HsArC
the easiest way to find out if you're running Furmark at full speed is to rename the .exe and check the framerate. if your framerate is the same with a different .exe name, all is well.
I'm on 8.7
so, I'm good? great :D
If you ask me your temparatures suck:(Quote:
Originally Posted by |Oc|REvO_HsArC
http://shrani.si/t/1c/yW/12CySbgG/temaprature.jpg
first of all, there's a difference between Furmark and ATiTool. a big one. second of all, you're using GPU-Z 0.2.6, which doesn't show VRM temps. download 0.2.7 and use that from now on.Quote:
Originally Posted by M-XXXX
OCed mine some more and seems furmark sable at 825/1025 but only time will tell if it really is stable.
These temps are very good. No problem there. Are you volt modding your card?Quote:
Originally Posted by |Oc|REvO_HsArC
when I oc my card (x2) I get no performance gain in 3dm06, my score actually went down 20 points.
I overclocked gpu from 750 to 800 and mem from 900 to 945.
do you think that is just because 3dmark uses such a low resolution that it is cpu restricted?
Did you make sure that the OC stuck by looking at GPU-Z?
Oh wow, gpuz is reporting it to be at stock speeds, even after overclocking it
Posted this in the voltmod thread but thought it would be good to post it here too...
...and the saga of failed non-reference 4870s continues (definitely worth a read as what they are seeing is an ongoing issue with all 4870, especially with after market cooling)...
http://en.expreview.com/2008/08/23/p...-issues-check/
no... all stock. Here, the card idles 7º above my water temp! and 20º full load. I'm using the EK full coverwaterblock.Quote:
Originally Posted by dejanh
I see people with lot less temperature on air.
Thats some constructive criticism right there. And to dish some back since we are being nice and all. You provided no time stamp that could be running for 5 seconds. No ambient room temperatures listed. not using a real benchmark for temps. Atitool is great for checking for artifacts but beyond that its kinda useless. and since I cant be a complete ass those temps are pretty nice if your actually running a real benchmark for a period of time. Also get the latest version of gpu-z so you can see your vrm temps. Hard to beleive those aluminum blocks you are using are cooling the VRM's well enough would like to see some temps.Quote:
Originally Posted by M-XXXX
Sorry if I did offend anyone, yes I could write your temparatures are noot so good, you could have better, I think your core temp and PWR temps are high, or I could just wrote what I did.Quote:
Originally Posted by 0ut0fstep
Ive didi, but you havent noticed- hint GPU-z has graph of GPU LOAD, and you can see it from the picture that is at 100% for full lenght of graph, and on the graph with "bat temparatures" isn't like my, so I my card was under bigger load for longer time.:DQuote:
You provided no time stamp that could be running for 5 seconds.
I dont know them (still waiting for K-type sonda) but is quite hot here- about 25C+Quote:
No ambient room temperatures listed.
I know that, because of that Ive tryed that and temparatures were just few C higher:DQuote:
Atitool is great for checking for artifacts but beyond that its kinda useless.
Probably here is the problem- afcourse I have fan thats blowing and mixing hot air over the card:DQuote:
Hard to beleive those aluminum blocks you are using are cooling the VRM's well enough would like to see some temps.
Btw my card died few hours ago- my advice is: Dont even test MSI P45 DDR3 MB, not that has just killed my card, I had more then 100x restarts in few hours, better I don't start talking about the problems, while it was working (I even didn't know you can have so many problems) I like the most when floopy controler isn't working- have I mentioned i dont have floppy:mad:
Here we go gents (and maybe some ladies)...time to stir up some s*** :)
I've been posting for weeks now how it looks like there are major issues with 4870 VRM cooling and/or the overall power design...some listened, some did not...
Finally, here is some official confirmation of VRM issues...sadly ATI just "glazes" over this by hacking the driver and not fixing a problem...
http://en.expreview.com/2008/08/26/a...it-run-slower/
Now again, I will care to reiterate over all of the threads that I have been posting in related to this...
This thread is a pretty good collection of all the places I have posted about this already (see first post)... http://forums.tweaktown.com/f31/diam...edition-27348/
Let's hear some opinions!
i understand what you're saying. while this is far from ideal, at least the only problem is with Furmark. nobody buys a video card to play Furmark. i have a G15 keyboard and Everest and i can monitor my VRM temps while i'm playing games and i've never seen them go over 90°C. if a new game comes out that stresses my VRM's like Furmark does, then i'll get mad. until then, i see it as nothing more than a minor disappointment.Quote:
Originally Posted by dejanh
Yeah I think some cards are just dodgy. The temps some people got were well over 100C even with a couple of fans pointing directly at it.
will you do some tests with the blue PCB model and share your temps with us? i'm particularly interested in VRM temps while running Furmark with the 8.7 driver. i wonder if ATI changed the reference design to improve something.
Probably. Sapphire don't even sell the reference 4850 now so it could be that they have phased out the reference 4870 too. Pull off the heatsink Unrealer :p:
Sorry but im using 8.8 :)Quote:
Originally Posted by xMrBunglex
Tell me exactly what test do u want... for example , which fan speed...
We want u to strip it and make it naked... so we can see the vrm used on it.Quote:
Originally Posted by Unrealer
Sorry but im not going to pull off the cooler :D not at the moment.Quote:
Originally Posted by Barr3l Rid3r
if you don't want to switch your driver, would you rename the furmark .exe file to another name and run it? then monitor your VRM temps with the latest GPU-Z. that will tell us if the new blue PCB cards have better voltage regulators.
Yes please do what they asked above :)
I dont know why but furmark doesnt start :p: i can try ati tool or RthdriblQuote:
Originally Posted by xMrBunglex
Doesn't start as in "crashes" or does not start at all? If it does not start at all try reinstalling your drivers...
If it crashes...well, that's probably our answer...
probably u are trying to run it in an unsupported resolution mode...
I tried 1280x1024 & 1680x1050.Quote:
Originally Posted by Barr3l Rid3r
No, it doesnt start when i run it the screen gets black :ROTF:Quote:
Originally Posted by dejanh
latest version of furmark? what about the renamed test?Quote:
Originally Posted by Unrealer
Thanks, i downloaded the latests version and it runs, is strange cause the version i had run withe the previous 4870... :rolleyes:Quote:
Originally Posted by Barr3l Rid3r
Well, later ill post the tests :) but, what fan speed do you want? normally i use 35%.
Well, whatever you think is a bearable fan speed in terms of noise. 100% is not bearable as it sounds like a jet. However, it would be useful to see it at 100% as well just to get a better idea.Quote:
Originally Posted by Unrealer
Ok, ill try 40% and 100%...Quote:
Originally Posted by dejanh
I tried 830/4200 with 40% but furmark crashes after 20seconds or less :clap: i show 150º on VRM :ROTF: and a red led appeared on the card, i rebooted but it didnt turn off :confused:
http://i20.photobucket.com/albums/b2...D/Dsc09443.jpg
Ill try again with stock speed & 40%... :yepp:
idle temps @ 250/1000 @ 20%:
http://i20.photobucket.com/albums/b2.../Dibujo-70.jpg
EDIT: with stock speeds @ 40% i show 140º easily :p: furmark crashes after 1 minute and the red led appeared again (it only turn off when i power off the PC )
I dont take a screenshot but i recorded a video:
http://files.filefront.com/MOV09449M.../fileinfo.html
thanks for the help. no need to test further if you don't want. your VRM's get as hot as ours do.
http://i71.photobucket.com/albums/i1...an85/temps.jpg
GPU was idle here, and clocks were 795/1100. I will do a run with furmark 100% load and upload my screenshot here. I was monitoring remotely via RDP from work, so I couldn't run any 3D tests at the time, as a limitation to RDP.
GPU is under an EK 4870 full cover block.
830/4200, 35% playing Crysis:
http://i38.photobucket.com/albums/e1...bum2/th_cr.jpg
wow. i think your VRM's actually get hotter than mine.Quote:
Originally Posted by Unrealer
What fan speed do u use?Quote:
Originally Posted by xMrBunglex
i use a custom profile similar to the one on the Asus Top BIOS. it's usually at 30% on desktop and around 40% in games.Quote:
Originally Posted by Unrealer
What, that seems ridiculous, 20s?Quote:
Originally Posted by Unrealer
I've ran Furmark at 820/1020 for 30m and temps don't go above 92c core, 131c vrm at stock fan settings.
@42%-50% (it keeps switching all the time) it's 81c core and 105c VRMs. (custom fan profile in ATT)
This is with cats 8.7
Um you might want to not run FurMark for so long if your VRMs get that hot. Max safe operating temp is 125C ;) Around 50% fan on stock cooling the temps get much better. I had the same thing happen. Granted IMHO 105C is still too hot.Quote:
Originally Posted by Xcel
Damn VRM's wish I had some milling equipment i would just design a cooler for the back half of the card. It wouldnt be that hard. suprised some manufacturer hasnt jumped on the band wagon yet lots of people( I know I would) would buy a cooler for the back side of the card if it worked and was available.
So, 4870 is having problems with overheating?
only with Furmark and the 8.7 driver. right now it's only a theoretical problem. we don't know if it will ever be a real issue in any real 3D app or not.Quote:
Originally Posted by anzial
Well IMO something is definetly wrong with a card that can only run furmark for 20s or less.
I've only just installed 4870, installed windows and noticed how loud the fan is... annoying, really, esp. when compared to my venerable 8800gts, and also considering that I have an overall quiet case... Hmm, well, I'll give it a whirl and if I don't like it, Fry's will take it back :D
This problem is pretty random. Its not "every card" that is having a VRM overheating issue. my visionteks can run furmark all day long sure they break 100c but they are not crashing, and all other 3d stress test programs that use 100% GPU usage arent causing the vrm's to cap out either. so we dont have a valid reason why furmark is causing this.Quote:
Originally Posted by Xcel
what model did you get? the reference 4870 is whisper quiet unless you mess with the stock fan settings.Quote:
Originally Posted by anzial
So I gather the backside of the card gets hot but what can you whack a heatsink on? I guess we could just run a fan over it.
I did not find an app yet that causes near or at 100% utilization on the GPU other than FurMark. Everything else from what I have observed seems to be < 90%, peak maybe closer to 100% but only for a split second.Quote:
Originally Posted by 0ut0fstep
My point was maybe his card is faulty, bad contact perhapsQuote:
Originally Posted by 0ut0fstep
I didnt know an OC thread existed. Here is mine, game stable, Furmark stable..
Here is 900 core, no vmods, just flashed with Asus TOP bios.
http://3dxtreme.net/other/ASUS%20HD4870/900core.jpg
wow, very nice :Dc dnottis
the best ive seen so far. which card vendor was that :slobber:
furmark stable too......
Asus.