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View Full Version : Wattage output of a e6750 and 8800gt??



disruptfam
01-05-2008, 05:44 AM
Can anyone tell me what kind of heat these components put out? (stock and overclocked)

Also would a mcr220 be enough to cool them both..??

:up:

Eddie3dfx
01-05-2008, 06:03 AM
The real question is..
How overclocked is your gt card & how overclocked is your e6750 (what voltage as well)

Fush
01-05-2008, 06:04 AM
For the CPU
http://www.extreme.outervision.com/tools.jsp#cpuoc


Not sure on the GT.

disruptfam
01-05-2008, 06:32 AM
cpu 4ghz.. volts 1.5v (maybe more)

Gt (don't know)

disruptfam
01-05-2008, 06:38 AM
ok according to the estimator 4ghz @ 1.55v = 150w

Plus gt =

mcr220= ?????????

Eddie3dfx
01-05-2008, 06:40 AM
add in another 220w+
370+
Thats a lot of heat

disruptfam
01-05-2008, 06:47 AM
mcr220 cant handle that???

Eddie3dfx
01-05-2008, 06:53 AM
http://www.swiftnets.com/assets/images/products/MCRad-220/MCR220QP_HD_VS_FR.PNG

no ;(

Talonman
01-05-2008, 06:57 AM
ok according to the estimator 4ghz @ 1.55v = 150w

Plus gt =

mcr220= ?????????

Best guess:
Suppose we used a D5 pump, and Yate Loons rated at 70.5cfm, could we figure the Thermal Dissipation for all the rads listed? If so it might be handy for a quick reference chart, to help aid in buying decissions.

RAD USED________________________________ Approximated Thermal Dissipation.
ThermoChill PA120.1 Single 120mm fan ------------------------- 175w
ThermoChill PA160 Single 120mm fan --------------------------- 220w
ThermoChill PA120.2 Dual 120mm fans -------------------------- 345w
ThermoChill PA120.3 Triple 120mm fans ------------------------ 490w to 510w

Swiftech MCR120-QP Single 120mm fan ----------------------- 170w
Swiftech MCR120-QP-K Single 120mm fan --------------------- 170w
Swiftech MCR220-QP Dual 120mm fans ------------------------ 320w
Swiftech MCR220-QP-K Dual 120mm fans ---------------------- 320w
Swiftech MCR320-QP Triple 120mm fans ----------------------- 430w
Swiftech MCR320-QP-K Triple 120mm fans --------------------- 430w

Note, These numbers are just a Ball Park figure and not to be taken as hard cold fact.

Eddie3dfx
01-05-2008, 07:00 AM
disrupt, can you add in another 120 radiator?

disruptfam
01-05-2008, 07:09 AM
yes if needed...

so a mcr220 and a mcr120 would do the job???

would a mcr320 outperform those rads in series?

disruptfam
01-05-2008, 08:17 AM
??????????????

Jedda
01-05-2008, 08:27 AM
Think they'd be fairly similar in performance.

disruptfam
01-05-2008, 08:33 AM
so a mcr320 or 220 + 120 should be more than enough???

Jedda
01-05-2008, 08:39 AM
Not for any crazy o'clock but a web browsing relative should be OK. Only thing will vary is how fast the fans need to run.

Eddie3dfx
01-05-2008, 08:57 AM
2 radiators = more restriction
mcr320 should be fine

disruptfam
01-05-2008, 09:09 AM
mcr320 with 120mm Scythe SY1225SL12H "Slip Stream" Case Fan (88.11 CFM, 33 dBA) should be right for some overclocking fun...?

Polizei
01-05-2008, 09:09 AM
220w for an 8800GT? I think not.

:bs:

disruptfam
01-05-2008, 09:13 AM
more or less?

smee
01-05-2008, 09:27 AM
Probably means less.

Eddie3dfx
01-05-2008, 09:29 AM
polizei, there is a big difference between
idle/non overclocked
load/overclocked

I have a wattage meter right here and I can tell you under 06-3dmark with 2 8800gts cards, I hit over 607watts.
I'll measure the 8800gt if you would like

system idle 278watts
fur rendering benchmark load 425watts

Polizei
01-05-2008, 09:44 AM
Of course there is a big difference between idle/stock and load/overclocked.

What Im getting at though is an 8800GT cant possibly be putting out 220w of heat.

The wattage meter you have... if that measuring the power draw of your system from the wall?

Eddie3dfx
01-05-2008, 09:49 AM
Running dual orthos gives me 375watts.
Running ati tools scan tools in addition to orthos is now pushing 475watts.
Thats 100 watts right there under load, maxed overclock.
From the wall (killawatt meter)

Polizei
01-05-2008, 09:57 AM
You cant relate that to heat output.

AC-DC conversion is not 100% efficient (see PSU efficiency) and even then, 100% of the power output to your system isnt absorbed by your watercooling.

Eddie3dfx
01-05-2008, 10:12 AM
So why don't you answer his question to how much heat/wattage an 8800gt produces and why don't you answer his question in the first place.

how can I put it lightly..
If you are going to call bs, you might as well put up some credible information to the actual numbers.
OR

http://ecx.images-amazon.com/images/I/41DLuzKFi6L._AA280_.jpg

rge
01-05-2008, 10:22 AM
I have a E6850 at 1.5V 4ghz and OC ultra, so I have a little more heat to dissipate with my ultra, and my ambients are a little high at 26C.

I have a PA120.3 and was ok providing I used ~1600 rpm fans for benching, and 1200 rpms for everthing else. You will be fine with mcr320 and medium speed fans (on high for benching), but dont get the 220.

I just installed 2 loops (added a 220) so I could bench quietly as well, (well also so I can go quad in future).

Polizei
01-05-2008, 10:37 AM
So why don't you answer his question to how much heat/wattage an 8800gt produces and why don't you answer his question in the first place.

how can I put it lightly..
If you are going to call bs, you might as well put up some credible information to the actual numbers.
OR



I dont have an 8800GT (yet) nor watercooling, but I can tell you they dont ouput 220w. I can also tell you for a fact that power drawn from the wall is not the same as heat output.

Eddie3dfx
01-05-2008, 10:52 AM
I understand that there is a difference between the wall and the psu, but a gpu and a cpu will stress an mcr220.
A 320 would get better temps.
I have a d5 and mcr220 on an 8800gt and when overclocked and under load, the temps heat up.
Add in a cpu under load that loop and your temps will go up even more.

Xilikon
01-05-2008, 10:57 AM
A 8800GT cannot generate over 220w for sure. This figure might be for a SLI 8800GT and a single GT might be about 120-140w top. A GTX is 175w at stock.

A 8800GT and E6750 can be handled by a MCR220 (borderline) or MCR320 (ample room). The only thing which can get over those radiators is a Q6600 overclocked and old GTS or GTX.

Eddie3dfx
01-05-2008, 11:50 AM
http://media.arstechnica.com/journals/hardware.media/nvidia1.jpg

disruptfam
01-05-2008, 03:16 PM
according to the graph your correct eddie..... (can you link me to it)

is that a stock or overclocked gt???

i thought gtx's put out like 275 or more... is that 175w figure @ stock/idle

I'm getting mixed answers............

Eddie3dfx
01-05-2008, 03:50 PM
Apparently some people on this board believe you can run 4 8800gt cards with a 500watt power supply LOL
:rofl:

disruptfam
01-05-2008, 03:53 PM
so in short...

a mcr320 with scythe slip streams 88cfm could handle a e6750 4ghz and 8800gt overclocked?

Eddie3dfx
01-05-2008, 04:12 PM
yes, mc320 can handle around 420watts or so

disruptfam
01-05-2008, 04:29 PM
Thank You

NickS
01-05-2008, 04:35 PM
Can anyone tell me what kind of heat these components put out? (stock and overclocked)

Also would a mcr220 be enough to cool them both..??

:up:

Easily. My Dad was running this same setup till he got a quad (and it was still enough).

He ran the 6750 @ 3.4GHz 1.43v and the 8800GT SSC @ Stock (it's stock overclocked though). Temps were great (40's load for both).

With the Quad the CPU would get into the 50's but the GPU stayed in the mid 40's.

He added a MCR-120 to the loop and all is normal again.

disruptfam
01-05-2008, 04:46 PM
cheers mate

mcr320 for some overclocking headroom then :)

Isriam
01-05-2008, 05:35 PM
i'll never use a 2x rad again, i'll only use 3x. my 2x wouldn't even handle my quad core very well.

Polizei
01-05-2008, 06:37 PM
http://media.arstechnica.com/journals/hardware.media/nvidia1.jpg

Power consumption... not the same as heat output.

Eddie3dfx
01-05-2008, 06:42 PM
:horse:

iandh
01-05-2008, 07:08 PM
From what I've seen the heat dissipation of a stock 8800GT is just over 100w.

I know this must be true to some point because before I switched to my q6600 I had my 8800GT @ 700 core and 4800+ @ 3ghz 1.4v running on a single PA160 with a single 60cfm fan. I still had a bit of headroom left on the PA160 so I would say that the pair was dissipating no more than 200w at full load.

disruptfam
01-05-2008, 07:11 PM
ahhhhhk then...

Kbofwy
01-05-2008, 07:16 PM
http://media.arstechnica.com/journals/hardware.media/nvidia1.jpg

Here's the article the graph is from:

http://arstechnica.com/journals/hardware.ars/2007/11/28/revisiting-the-power-consumption-of-the-ati-radeon-hd-3800-series

Looks to me the charted power draw is the full system, not the video card only.

Gpureview mentions 105watt for a stock 8800gt:
http://www.gpureview.com/show_cards.php?card1=544&card2=

iandh
01-05-2008, 07:18 PM
Was that 1 gt iandh?

Yep, one GT and one 4800+ Brisbane in a single loop using a rad that is shown to max out just over 200w. The stock dissipation of the Brisbane is 65w and according to the calculator my cpu should have been dissipating around 90w at that speed/vcore, so considering the capabilities of the PA160 and the airflow I was providing I really don't see any way that my GT could have been dissipating much more than 100w. I reached a stable load temp very quickly so I know that I wasn't beginning to saturate my coolant due to lack of dissipation from my rad.

disruptfam
01-05-2008, 07:37 PM
Awesome!! thanks all..

a mcr320 should be more than enough then :)

cheers

nomad3700
01-05-2008, 07:39 PM
I have the exact same setup E6750 and 8800GT not overclocked at the moment. But I was also gonna add another mcr220 or 320.

iandh
01-05-2008, 07:40 PM
Awesome!! thanks all..

a mcr320 should be more than enough then :)

cheers

From what I've seen the mcr320 should actually be able to handle an OC'ed quad along with an 8800gt using medium speed fans. I'd say you are golden...

disruptfam
01-05-2008, 07:50 PM
a w e s o m e

Ordered it :)

perfectdarth
01-06-2008, 12:56 AM
yes, mc320 can handle around 420watts or so

an sli rig wouldnt use that much power for the whole computer

Eddie3dfx
01-06-2008, 06:20 AM
alright, for those that say an mcr220 can handle an overclocked quad and a gt, it can't, i know, because I've tried this.
My temps shot through the roof when I put in the gpu. I purchased an additional mcr320, which brought temps down to normal.
Eventually after this I split it into two loops, which improved temps even more.
This is for the 220, the QP maybe different.
Here is the graph for the QP, which is more refined, and has a tank in the rear.

http://lib.store.yahoo.net/lib/sidewindercomputers/qp2202.gif

Eddie3dfx
01-06-2008, 06:29 AM
an sli rig wouldn't use 420 watts?
My 8800gts sli rig with a quad was chugging on my corsair 520 (peaked around 600+ watts)
I threw in a ocz 700w and all my scores went up.
I don't know what people are going to do for watercooling when we have quad sli ;)

Waterlogged
01-06-2008, 02:27 PM
http://www.swiftnets.com/assets/images/products/MCRad-220/MCR220QP_HD_VS_FR.PNG

no ;(

I should point out that this chart is only valid if you want/believe you can achieve a 10ºC delta.

It should also be noted that all MCR rads use the QP designation, the only thing that determines whether or not it has a res on the one end is it will say QP Res.

http://www.swiftnets.com/products/MCR220-qp.asp