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temps seem odd with new loop

F

frank6150

n00b
Joined
Oct 19, 2005
Messages
26
I recently stripped my system down and upgraded the cpu, video and added 2 new rads and it seems like I should be seeing a little more of a drop in temps than I am right now. I know the video card is gonna pump more heat into the loop than my previous one but it seems warmer than it should be.

I'm starting to think the pump doesn't have what it takes to push through all this tubing and 2 rads but I don't know for sure.

The loop only has the cpu and video in it:
-A64 6000
-EVGA 8800GTX (overclocked about 10% right now)

Rads and pump:
-BI XFlow 120x3
-BI 120x1
-MCP655 pump

Loop:
res > pump > 120x1 > cpu > 120x3 > gpu > res

I have PC Wizard 08, NTune, and PC Probe running to get my temps. These are idle temps, I haven't load tested yet since I wasn't comfortable with the gpu temps.

CPU: 38c <-- same as I got with my previous setup, not concerned there

GPU: 55c <-- about 10c higher than my 7900gtx not that it is a good comparison

In NTune I don't know what the first temp is, nForc, reading 76c.

Should I be concerned at all with the temps? I was kinda hoping for a bit lower seeing as I added a second rad and replaced my double with a triple.
 
Your pump is fine. Flow-rates don't make much of a difference.

What's your Room temperature?

What's your GPU block? Judging by your GPU temps, I'd say you room temp's a bit warm.
 
iirc 55c for a GTX is actually about what you should be seeing. You could probably reduce temps by getting two seperate loops but it's probably not worth the hassle.
 
55C idle for a water cooled 8800GTX seems high. Are you using a full coverage block? With an MCW60 on my 8800GTX, load temps never go over 45C according to AtiTool.
 
Arcygenical said:
Your pump is fine. Flow-rates don't make much of a difference.

What's your Room temperature?

What's your GPU block? Judging by your GPU temps, I'd say you room temp's a bit warm.
Click to expand...

Room temp is 75 during the day, around 71 - 72 at night. GPU block is the full coverage DD.

I ran ATITool and Prime95 for a little over 2 hours since I posted and got some maxium temps. With my fans all turned down, cpu hit 59c and gpu hit 80c. With the fans up the cpu was 51c and gpu was 74c.

Dunno if room temp is what's doing it to me but those seem a little higher than I'm used to. I was expecting the gpu to top out around 60 or so with this setup.
 
Those temps are extremely high under load - I recall a review showing that the MCW60 only has a 8-9C advantage over full cover, so 60C should be your worst case scenario. I heartily suggest remounting the block.
 
Nicepants42 said:
Those temps are extremely high under load - I recall a review showing that the MCW60 only has a 8-9C advantage over full cover, so 60C should be your worst case scenario. I heartily suggest remounting the block.
Click to expand...

I was afraid you would say that :D

That was gonna be my next step, I thought I took enough care when mounting it that it wouldn't be a problem but that's really all that is left to try short of breaking the loop up.

Thanks for the help everyone!
 
frank6150 said:
Room temp is 75 during the day, around 71 - 72 at night. GPU block is the full coverage DD.

I ran ATITool and Prime95 for a little over 2 hours since I posted and got some maxium temps. With my fans all turned down, cpu hit 59c and gpu hit 80c. With the fans up the cpu was 51c and gpu was 74c.

Dunno if room temp is what's doing it to me but those seem a little higher than I'm used to. I was expecting the gpu to top out around 60 or so with this setup.
Click to expand...

We are running almost the exact same setup. I am running a a6000 w/8800gtx. I am using a D5 1/2" ID Tygon with the DD Full cover block 8800GTX and with a TDX cpu block and a MCP320 with yate loons.

Running my CPU at 3.2 under full load my CPU is at 41c, at idle it is running around 37-38c. Under full load for my GPU I'm running about 51c with about a 48c idle.

I would definitely remount your GPU because even OC'd it shouldn't be that high.
 
roary said:
We are running almost the exact same setup. I am running a a6000 w/8800gtx. I am using a D5 1/2" ID Tygon with the DD Full cover block 8800GTX and with a TDX cpu block and a MCP320 with yate loons.

Running my CPU at 3.2 under full load my CPU is at 41c, at idle it is running around 37-38c. Under full load for my GPU I'm running about 51c with about a 48c idle.

I would definitely remount your GPU because even OC'd it shouldn't be that high.
Click to expand...

I'm thinking I need to check the cpu block out as well since it's hitting high 50's under load with no oc. You would think I would be better by now, this is my 5th water build. First 3 went flawlessly, these last 2 have been nothing but a headache with temps and leaks.

This is the only thing I hate about watercooling, you can't fix much of anything without draining the loop. Gonna try my best to reseat the gpu and cpu without draining but it sure isn't gonna be easy.
 
Well I reseated the cpu block and the gpu block and temps have fallen a decent bit but the gpu is still running hotter than I would like.

cpu is 32 - 34 idle, 43 - 47 load

gpu is still 54 idle, 65 - 67 load

I'm fresh out of ideas, all that is really left are the fans. They are all the medium speed yate loons.

I guess I'll just be living with the high gpu temps for now and hope it doesn't start crappin out on me during long gaming sessions. If it stays around 65 I can deal with that but if it starts spiking back up to 80 again I won't be happy.
 
CPU: core temps all idle in high 30's. Under several hours load they stablize in the mid 60's.
GPU: core/diode temp idles in high 30's. Under load it's in the mid 40's. (that's with a full cover block)

That's with ambient between 19 to 20c, my fans at max (i.e. around 1000-1100 rpm), and the case open. Got the same D5 as you so it's not the pump, and am using 5 low speed yates, so it's not the fans.

If you've properly reseated it a few times (at least twice) and used minimal TIM, you might not like this answer but it could be your GPU block. Might have clogged up over time; or some blocks are simply not machined properly and flow inside the block is impeded. See if you can get it replaced. Try it with a different GPU block and see what happens.
 
frank6150 said:
Well I reseated the cpu block and the gpu block and temps have fallen a decent bit but the gpu is still running hotter than I would like.

cpu is 32 - 34 idle, 43 - 47 load

gpu is still 54 idle, 65 - 67 load

I'm fresh out of ideas, all that is really left are the fans. They are all the medium speed yate loons.

I guess I'll just be living with the high gpu temps for now and hope it doesn't start crappin out on me during long gaming sessions. If it stays around 65 I can deal with that but if it starts spiking back up to 80 again I won't be happy.
Click to expand...

How much TIM are you applying? The 8800s need a LOT of TIM between the IHS and the block. Like, a little too much ;)
 
Arcygenical said:
How much TIM are you applying? The 8800s need a LOT of TIM between the IHS and the block. Like, a little too much ;)
Click to expand...

That is true! When I put my system together, I actually just put the AS5 on the chip and then spread it with a straight edge. At first I was worried that I was putting too much, but then I got the temps and everything was good, so I left it alone.
 
Arcygenical said:
How much TIM are you applying? The 8800s need a LOT of TIM between the IHS and the block. Like, a little too much ;)
Click to expand...

The first and second time I reseated it I put it on very thin. Temps are still out of whack. I threw my 7900gtx in to see what it would do and it was idling around 29 - 32, loading 38 - 41.

Both times when I pulled the block off I've been noticing that it isn't completely touching as it should be. Thought maybe I had it this time but it appears not. Startin to run out of AS5 from redoin this damn thing soo many times.

Gonna yank it off one more time and put it on quite a bit thicker, surely can't hurt at this point. I'm not the least bit thrilled with this DD block, starting to wish I would've chose a different one.
 
echn111 said:
CPU: core temps all idle in high 30's. Under several hours load they stablize in the mid 60's.
GPU: core/diode temp idles in high 30's. Under load it's in the mid 40's. (that's with a full cover block)

That's with ambient between 19 to 20c, my fans at max (i.e. around 1000-1100 rpm), and the case open. Got the same D5 as you so it's not the pump, and am using 5 low speed yates, so it's not the fans.

If you've properly reseated it a few times (at least twice) and used minimal TIM, you might not like this answer but it could be your GPU block. Might have clogged up over time; or some blocks are simply not machined properly and flow inside the block is impeded. See if you can get it replaced. Try it with a different GPU block and see what happens.
Click to expand...

Thanks for the info. The block isn't clogged, I've already checked for that. Aside from the machining, I wouldn't know what is right and what's not. Giving it one last try reseating it then I'm gonna see about getting it replaced.
 
New update on my troubles...

It appears the vid card decided to go ahead and go insane on me this morning. Screen filled with artifacts and the system locked up. Upon rebooting the screen was clear for about 10 seconds then they started to appear again. I've had it with this particular card.

Before it went crazy I managed to get my idle temp to around 49 - 50, too bad this happened. RMA'ing it tomorrow and hopefully I'll have better luck with the next card.

Anyone think I should get a different gpu block to replace the DD one? Or anything I could possibly do different to lower my temps a few more degrees?
 
frank6150 said:
New update on my troubles...

It appears the vid card decided to go ahead and go insane on me this morning. Screen filled with artifacts and the system locked up. Upon rebooting the screen was clear for about 10 seconds then they started to appear again. I've had it with this particular card.

Before it went crazy I managed to get my idle temp to around 49 - 50, too bad this happened. RMA'ing it tomorrow and hopefully I'll have better luck with the next card.

Anyone think I should get a different gpu block to replace the DD one? Or anything I could possibly do different to lower my temps a few more degrees?
Click to expand...

I'm sure you haven't overlooked this, but make sure that when you mount the block, make sure you aren't tightening the screws too much, as this will cause the board to warp and not make good contact with your heat sink.

Most people recommend the EK full cover block, but my DD does just fine. ;)
 
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