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Discussion in 'GPU-Z' started by falcon26, Aug 16, 2008.

  1. falcon26

    falcon26 New Member

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    Ok here goes first post :) I've got a 4870 Ati card running passive with no fan using the artic cooling S1 as a heatsink. I've got ramsinks on the memory and the vrm's. I have 1 rear 120mm 800 rpms fan and 1 front intake fan same speed. I also have 1 120mm fan on my cpu cooler same speed. I was wondering if these temps are ok for my gpu running passively?

    http://gpuz.techpowerup.com/08/08/16/9f.png

    Thanks, falcon26
     
  2. dark2099

    dark2099

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    The temp although within safely ranges seems high for a card with that cooler at idle. You may have a problem with how the cooler is mounted.
     
  3. DrPepper

    DrPepper The Doctor is in the house

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    I have a S1 and my 8800GT runs at 40 degrees C idle 43 load. There's some comparison
     
  4. falcon26

    falcon26 New Member

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    Yeah when I had my 8800GT it ran at those temps too. But doesn't the 4870 produce alot more heat?
     
  5. DrPepper

    DrPepper The Doctor is in the house

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    Well its 55nm so shouldn't be much more :eek: maybe you should reapply thermal grease and remount ?
     
  6. falcon26

    falcon26 New Member

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    Ok, after taking your advise, I reseated the S1 and put ramsinks on the vrm's and a 120mm fan on the s1 here's what I got

    http://gpuz.techpowerup.com/08/08/17/8rx.png

    The gpu temp is pretty good but the vrm's are still like 75 is that ok?
     
  7. DrPepper

    DrPepper The Doctor is in the house

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    Thats an excellent drop in temps from just reseating it :p Now try allowing more airflow to get into the fan cooling it.
     
  8. kyle2020 Guest

    you could even ghetto - mount a 12CM fan onto the accelero ;)
     
  9. falcon26

    falcon26 New Member

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    That's exactly what I did :) Their is a 120mm 800 rpm fan mounted on the s1 with zip ties...
     
  10. DrPepper

    DrPepper The Doctor is in the house

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    /win for ghetto mods :D.
     
  11. kyle2020 Guest

    you know ;)
     
  12. kg_wolf New Member

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    I did the zip ties with an 8800GT on my other rig and it worked fine with the Accelero S1v2. My question is, what did the fan do for your 4870 temps? I saw the graph after you reseated the cooler and added the RAM sinks but was wondering how the fan further affected temps.

    Did you sink the VRM? In my opinion that is the source of a lot of heat with a 4870. I am getting ready to install a Thermalright HR-03-GT vga cooler and wanted to see the effects the fan had on your cooler. The size difference in the HR and the S1 will force me to use a 92mm fan as the HR is much smaller than the S1.

    Thanks! :cool:

    kg wolf
     
  13. WarEagleAU

    WarEagleAU Bird of Prey

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    with one intake and one outtake fan, those temps arent bad at all. I have the same sort of problem with airflow in my case, but Im running a HD3870.
     
  14. nafets New Member

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    A 120mm fan works just fine on the TR HR-03 GT. I have a Scythe S-Flex SFF21E on my HR-03 GT and it works great. Don't settle for a smaller 92mm fan...
     
    kg_wolf says thanks.
  15. Mussels

    Mussels Moderprator Staff Member

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    i get around 35C load with a fan (nearby case fan) blowing on my 8800GT w/ an S1.

    you get a fan on it, and it cools the ram/VRM's as well as the core
     
    kg_wolf says thanks.
  16. kg_wolf New Member

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    Thanks! I have a basket full of nice 120mm fans that I could use. I just figured it was too big from the looks of it. They did include a wire thing to install the fan but I guess my zip ties will have to override that. ;)

    I'm anxious to get it installed as this fan noise from the 4870 is driving me crazy, even at 40%. 70% is like a 2 cycle lawnmower engine, 80% is a leaf blower and anything higher is your mother-in-law trying to talk to you while your gaming. :twitch:

    kgw
     
  17. kg_wolf New Member

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    Thanks Mussels, that's a great load temp you have there. I have plenty of air flow in this case including 2-140mm fans in the bottom blowing up directly at the vga card then on to the CPU. I've got 2-140mm fans blowing in from the lower front of the case that also cools the HDD. One 120mm exhaust fan in the back of the case and one in the top of the case. The side door has a 250mm fan blowing on most everything. I figure I'll need every bit of it to keep this beast cool. I had no issues with the 8800GT but the 4870 is a whole different animal.

    I'm not worried about the core staying cool, it's the voltage regulator I worry about. I'll sink it, that's for sure.
     
  18. Mussels

    Mussels Moderprator Staff Member

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    well the point is a 120mm fan blowing onto that Vreg is going to be cooler than even the stock cooler was - direct airflow (sinked or not) will make a huge difference.

    and yes i love my 8800GT - its Vmodded and OC'd and rarely breaks 40C in the weather atm (its winter here)
     
  19. kg_wolf New Member

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    G'Day Mate! I failed to notice where you were! :) When you said "it's winter here", me being in Florida, I had to do a double take.

    Yes, I agree on the fan. The one on the 8800GT is a 120mm that I have set for 1200 RPM's. That close airflow keeps the entire card cool. It's virtually silent and keeps it very cool.

    Well, I'll throw an extra "mussel" on the barby in your honor. :toast:
     
  20. falcon26

    falcon26 New Member

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    Ok I just put a 120mm scythe slipstream 1200 rpm fan on the S1 here's what I got :) And its just as quiet as the sflex was at 800 rpm's. The difference being the 1200 rpm one is rated at 66 cfm and the 800 rpm one is rated at 33 cfm...

    http://gpuz.techpowerup.com/08/08/18/6ty.png
     
  21. kg_wolf New Member

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    Falcon, are those load temps? Also, did you hook up the Scythe fan to your video card?
     
  22. acrowley23 New Member

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    I never would use as S1 passiv on a 4870!! its not recommend because the 4870 produces a lot more heat compared to a 3870 where passive cooling was possible!

    Use a 120mm Fan ,otherwise you can kill you Card ! Stop using a passiv S1 on 4870!

    Most guys i know with 4870 @ S1 are using the Red Cooling Plate from Stock Cooler to cool the Ram and VRMs. And a mounted 120mm Fan
     
  23. kg_wolf New Member

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    If this turns out to be a really dumb question, just pretend I didn't ask it ... ;)

    But after reviewing some very nice photos of a 4870 video card that had been taken apart, the question that has dogged me was "why can't you simply take the cover off, remove the fan, add the VRM heatsinks, strap on a 120mm fan use the existing cooler? It doesn't look half bad just to be honest, and the size of the heat pipes is impressive. (Actually you could even use the ATI heat VRM heatsink complete and possibly not even need to add anything.)

    I have tried to evaluate the photos to see if I could answer my own question but so far I am not sure. It certainly looks possible. Perhaps one fly in the ointment might be that the cooler is designed for airflow to move parallel through the fins instead of perpendicular. Might not be an issue.

    Of course the entire exercise would be in an attempt to eliminate the overly noisy fan, replacing it with a much more quiet fan that would at least move as much air as the stock fan. There is no doubt that this cooler will keep the beast cool, if you're willing to put up with the sounds of leaf blowers in your ears.

    If this topic has already been discussed I humbly apologize.

    Any ideas or thoughts?

    KGW
     
  24. kg_wolf New Member

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    I installed the HR-03-GT VGA cooler by Thermaltake today on my ASUS 4870. I learned a couple of things that I wanted to pass along.

    First, I had ordered the Enzotech low-profile copper heatsinks for the ram. (8 of them). I had used those same sinks on an Accelero S1 V2 used on an 8800GT, so I knew the drill. (Or I thought I did). Once I got the ram chips cleaned and the Enzos attached, I proceeded to install the cooler. Something wasn't right so I took a quick look and noticed that the front ram sinks were hitting the heatpipes. :eek: So, reluctantly after checking every type of quick fix I could think of, I removed the 4 ram sinks that run parallel to the vid card. :mad:

    I then realized why Thermaltake had put the small, wafer sized square sinks in the kit. The problem was there were only 3. Luckily the outside sink clears the pipes so a regular sink will work.

    OK, with that problem solved I finished the install and thought I would try the little wire thingies that T-Take included to hold a 92mm fan. Well, I preferred a 120mm fan so I thought I would try it. It worked! So, with the fan cleanly attached, (and no plastic ties in sight), I re-installed the card. The next few minutes were pretty painful. Waiting for the system to boot, Vista to load, yada yada, and finally to load a program to read my vid card temp. The factory cooler/leaf blower could keep it at 52.5 degrees C at 40% fan at idle. Not overly loud but annoying. I looked at Smart Doctor and saw that my idle temps now were at 42C (at idle). A pretty neat trick to drop it a bit over 10 C.

    Now I am off to run some load tests to see how it performs. I'll post some temps as soon as I can. But for now, I am a happy camper since I no longer have the wind tunnel effect going on inside my case. Ahhh... nice and quiet. :cool:

    Good cooler! Very nice quality. Just watch out for the ram sink height.

    KGW

    PS - I swear the ambient temperature feels much more comfortable in my office/playroom since I no longer have a blast furnace coming out the back of my case. Of course its probably cooling down outside a bit as I have a hurricane heading my way. :twitch:
     
  25. J-Man

    J-Man New Member

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    TPU GPU. I never knew there was a program like that :laugh:
     

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