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High Temps With 8800

N

NXLTrauma25

n00b
Joined
Jan 5, 2007
Messages
47
My thread was deleted in allof the site trouble so this is a repost
----------------------------------------------------------------------------------------------

My temp on the CPU has gona up dramaticly since adding the BFG 8800 GTS watercooled edition (the danger den waterblock one)

Water in res is cold as well as air coming from fans after passing through rad and the cpu block is cold to the touch as well

Tried remounting and reapplying as5 MULTIPLE times

Changed config multiple times to find no difference in temps

now at RES>PUMP>CPU>GPU>RAD>RES

Only thing I can think of is that the waterblock went bad or something


======WATER SPECS==========
Swifttech mcp655 pump
BLACK ICE GTX XTREME 240 Rad with 90CFM SILENX FANS in PULL
TDX CPU BLOCK
DANGER DEN NV-88 BFG FULL COVERAGE BLOCK
XSPC Res



Before card specs and after card specs are below.

=============IDLE============

Before 8800
----------------
CPU = 25c chip...27 and 28 on cores
GPU = 33c
System = 30c

==============================

After 8800 (AT STOCK CLOCKS ON CPU AND GPU)
---------------
CPU = 33c chip...34 and 39 on cores
GPU = 45c
System = 33c

==============================

After 8800 (OVERCLOCKED CPU AND GPU)
--------------
CPU = 36c chip...and 35 and 41 on cores
GPU = 45c
System 35c
==============================


============LOAD================

Before 8800
----------------
CPU = 36c chip...45 and 46 on cores
GPU = 40
System = 32

==============================

After 8800 (AT STOCK CLOCKS ON CPU AND GPU)
---------------
CPU = 47c chip...51 and 51 on cores
GPU = 50
System = 36

==============================

After 8800 (OVERCLOCKED CPU AND GPU)
--------------
CPU = 51c chip...and 53 and 53 on cores
 
LOCO LAPTOP said:
that not high. 8800GTX can go up to 80C when playing games. you have alot of room calm down.
Click to expand...

He's talking about his spike in temps for his CPU.

Anyhow, your BIX rad is clearly getting overtaxed as it can't dissipate the heat fast enough. You'll need to upgrade to a 3x120mm radiator, increase your flow (w/ a better pump), and/or increase your fan speed.

If space isn't a concern, I'd suggest either adding another radiator such as a MCR120 or 220 or just replacing the radiator with a MCR320.

If space is a concern and money isn't a problem, you might be able to get away with staying with a 220 radiator if you replace your BIX with a Thermochill PA120.2. You'll be riding the fine line of what it will be able to handle with your given setup.

The ideal setup is to separate both components into separate loops as the 8800's dump a ridiculously large amount of heat that will significantly affect your CPU temps and overclocking headroom as you've seen. Buy another pump and radiator and put the 8800 on the 220 and the CPU on the 120/220 radiator.
 
Ranker said:
He's talking about his spike in temps for his CPU.

Anyhow, your BIX rad is clearly getting overtaxed as it can't dissipate the heat fast enough. You'll need to upgrade to a 3x120mm radiator, increase your flow (w/ a better pump), and/or increase your fan speed.

If space isn't a concern, I'd suggest either adding another radiator such as a MCR120 or 220 or just replacing the radiator with a MCR320.

If space is a concern and money isn't a problem, you might be able to get away with staying with a 220 radiator if you replace your BIX with a Thermochill PA120.2. You'll be riding the fine line of what it will be able to handle with your given setup.

The ideal setup is to separate both components into separate loops as the 8800's dump a ridiculously large amount of heat that will significantly affect your CPU temps and overclocking headroom as you've seen. Buy another pump and radiator and put the 8800 on the 220 and the CPU on the 120/220 radiator.
Click to expand...

+1:D
 
I havent watercooled my new case yet (waiting on replacement parts for my current setup) but now that I read how hot the 8800's get, will I be alright?

I've got a BIP II cooling E6600 (not yet overclocked - waiting for water) and 8800GTS (same as CPU) on one loop.
 
oneil said:
I havent watercooled my new case yet (waiting on replacement parts for my current setup) but now that I read how hot the 8800's get, will I be alright?

I've got a BIP II cooling E6600 (not yet overclocked - waiting for water) and 8800GTS (same as CPU) on one loop.
Click to expand...

You'll basically be in the same boat as he is. If you're not worried about your OC'ing, then you should be fine. However, if you're watercooling for OC'ing, then a significant part of your headroom will be cut down due to the increase in CPU temps due to the 8800 being part of the same loop.
 
Ranker said:
You'll basically be in the same boat as he is. If you're not worried about your OC'ing, then you should be fine. However, if you're watercooling for OC'ing, then a significant part of your headroom will be cut down due to the increase in CPU temps due to the 8800 being part of the same loop.
Click to expand...

I plan on OCing the CPU as far as it'll go (hoping for max before voltage tweaks of 3.6ghz) and then pushing the GPU as hard as possible before straining the cooling..
 
oneil said:
I plan on OCing the CPU as far as it'll go (hoping for max before voltage tweaks of 3.6ghz) and then pushing the GPU as hard as possible before straining the cooling..
Click to expand...

You'll be better served with two loops. If you can't afford that, then you'll need a 320 radiator at the least.
 
Ranker said:
You'll be better served with two loops. If you can't afford that, then you'll need a 320 radiator at the least.
Click to expand...

Can/should I still safely run the one loop with 4 rad fans and live with the higher temps?
 
oneil said:
Can/should I still safely run the one loop with 4 rad fans and live with the higher temps?
Click to expand...

Oh of course. As long as your CPU temps don't exceed 80C, you can basically "live" with anything. However, the higher the temps, the more likely it shortens the lifespan of your components. I wouldn't run my CPU temps higher than 60C on load.
 
Ranker said:
Oh of course. As long as your CPU temps don't exceed 80C, you can basically "live" with anything. However, the higher the temps, the more likely it shortens the lifespan of your components. I wouldn't run my CPU temps higher than 60C on load.
Click to expand...

I def wouldnt allow the CPU to hit 80C under water, even with the 8800 in the loop... I wonder how easily it will be to hit 60C with both in there though :(
 
oneil said:
I def wouldnt allow the CPU to hit 80C under water, even with the 8800 in the loop... I wonder how easily it will be to hit 60C with both in there though :(
Click to expand...

Since each CPU is different, you won't know until you try. You might have a lucky chip that can post a 30% overclock on stock voltages, or you'll get a chip like mine that requires 1.55v to get a 40% overclock. It's all on luck of the draw.
 
Ranker said:
Since each CPU is different, you won't know until you try. You might have a lucky chip that can post a 30% overclock on stock voltages, or you'll get a chip like mine that requires 1.55v to get a 40% overclock. It's all on luck of the draw.
Click to expand...

I'll give it a whirl when I get home from work, see how hot it gets on stock air and how high it'll go... period.
 
Well if the rad isnt disipating the heat fast enough why is the rad cool tot he tough...why is the air coming out of the fans COLD...and why is the cpu block not warm at all

if it wasnt dissipating the heat fast engoh the block would be burning and mad heat would be flying through that rad and all

that pump is one of the best pumps for high flow high volume systems...check the specs

I have seen other people post temps with almost the same setup as mine and get really good temps...and i have seen one other guy get the same temps as me



PS this is on a 4800x2 (939)
 
i think the 8800's were putting out around 180watts of heat.

BTW what size tubing are you using?
 
1/2 tubing

I cant grip why the rad and block is cold...except if the block isnt getting contact but ive reseated over 10 times and im not a newbie at this haha
 
NXLTrauma25 said:
1/2 tubing

I cant grip why the rad and block is cold...except if the block isnt getting contact but ive reseated over 10 times and im not a newbie at this haha
Click to expand...

I don't think anyone is implying that you are. It's obvious that water is moving so we can rule out pump failure or else your temps would have shot through the roof. Now, if you've ruled out bad mounts by doing multiple remounts and still have the same temps, the only other possibility is that the blocks may be clogged affecting performance.

However, I still believe your high temps are simply the result of your radiator getting taxed and the GPU's much higher temps are affecting the CPU.

8800's put out around 175-200W of heat. A heavily OC'ed C2D can put out anywhere between 75-150W. If you're at the upper end of both ranges, you'll see that you've exceeded the 300W that most 2x120 radiators are capable of under normal circumstances (1GPM, 10C delta, medium fans, etc).
 
That makes sense and it might be true however why would the rad and air be cold?

wouldnt it be hot as an indicator that it is removing heat...just not enough?
 
Because dissipating heat from such a large surface is different then blowing straight hot air out of a port like regular exhaust fans do. Take the amount of head dissipated off the rad and blow it out of a regular case fan and you'll see feel the heat.
 
But in my old loop with the 7900 gs and those old temps I COULD FEEL the rad heat up and the immense amount of hot air coming out ...and still I got those great temps

if I felt the air then and the temps then...then why not now...and once again...why is teh actuall cpu block not even warm.

once again on the old system I could feel it heat up...though not HOT it would be warm somewhat...at elast warmer than ambient
 
and if it is what you say and the rad isnt cooling enough...you think adding another 120.1 will be enough?

...i just want to make sure its the rad before spending the money

I dont understand how before the rad expelled hot air and all but on this sytem its all cold...even the damn cpu block

why would the block be cold in this loop when in the old one it was warm
 
you could try a gpu-only block on the gtx. I'm not sure how much, but less heat will be dumped into your loop since you won't make contact with the voltage regulators and that crazy hot IO chip.
 
well i payed for the bfg card that came with the block so im not gonna jsut waste my money

plus the components are cooled for a reason...3 of my friends ran gpu only blocks on 8800s with zero overclock and the memory burned up with top quality heatsinks on them

the memory is friggin hot on these thigs and to simply be ignorant to the fact that their are other parts on this card that require active cooling is just not a good idea.

Now i did read a review where a guy tried a gpu only block and then this nv-88 block and his temps jumped to what mine are after using the full block


I have no problem ordering a 120.1 to put after the cpu but i want to make sure it isnt the block or chip that is the problem./..and no one has explained as to why both the block/rad/air is cold where as on my old loop with the 7900 i could feel the hot temps on all 3 of those things and was getting great temps
 
im not looking for a HUGE massive explanation of why the cpu block and rad is cold compared to how it was hot before with good temps

I just want to make sure that it isnt an issue elseware before I buy this rad so cmon people :)

ill buy the rad as soon as someone explains why what I said isnt abnormal
 
65-70 degrees depending on time of day

the air from rad fans/rad itself/cpu block are all feel around ambient temp...hell the fan in my kitchen blows jsut as cold air as my friggin rad fans and cpu block feel
 
Hows the thermal paste pattern look when you remove your block?

I know you said you've done it a few times, but I'm still curious.

I mean, if you used the SAME rad with a 7900 and you felt heat... supposing your ambient temp hasn't changed, I don't know what the problem is.

with my current setup, with a double BIP and 4 yate loons a 9v, the air didn't feel any warmer than ambient, that's for sure.
 
dont really know how to explain what it looks like butit looks like it should...the block smeared the as5 over the chip in a very nice thin layer its perfect

i dont udnerstnad it either...why in the hell would the cpu block and the rad be ambient temp and have such abd temps on the cpu and good temps on the gpu where in the last looop with the 7900 both temps were good but the air and block were warm
 
so just out of curiousty i ran prime 95 ...2 instances of it...heated the cpus up to around 50 on both....then i shut it down and opened the front of the case and felt the rad....the actual rad felt warm so thats a reliefe i guess...once again when i turned it on and ran the prim 95 the air was cool coming out of the rad and the block was cool to the touch...so im still stumped and curious as to if buying another rad is just a waste of money and im missing a bigger picture like a warped waterblock or IHS
 
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