Overclock.net › Forums › Cooling › Water Cooling › How long does it take for you to heat up?
New Posts  All Forums:Forum Nav:

How long does it take for you to heat up?

post #1 of 14
Thread Starter 
I have been struggling w/ my temps latley as I try to mantain stability @ 3.8ghz on my e6700. I recently added some 24v ebmpapst 'blowers' to my radiator, which dropped my temps 5-7c and enabled me to push past 3.4ghz for daily use. My rig runs for most of the day, so stability and consistant temps are my main concerns. *My Q is about radiators and water quantity.

->If I turn off my fans on the Rad...my temps quickly rise from 41c to 53c, within about 2 minutes. This was interesting to me, as I figured it would take hours to heat the water temp that quickly, even w/ no airflow on the Rad. Does this mean that I could need a larger radiator? Is my BIX II maxxed out w/TWD? Would having more water help stabilize the temps over longer periods of time?...Help!

Thermal spec on the BIX II is 6250btu's/hr, which calc's out to -> .2930711 * 6250 = 1831.69~ W/hr....
I only have my 7900 and my 6700 in the loop! Now granted the 7900 is @ 1.4v right now and CPU's vcore is 1.46...but thats only 400-500W max isn't it?

If you turn off your fans to your Rad...how long does it take to heat your H20, ten degrees?
post #2 of 14
bump for a fellow

can't tell you yet sir, I'm still getting my sig rig set up :\\
mini ITX
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5-2500K @ 3.8GHz ASRock Z77E-ITX XFX Radeon HD 6950 2GB Kingston Hyper X 1600 RAM (2X4GB) 
Hard DriveHard DriveCoolingCooling
Samsung 830 128GB Western Digital WD2000KS 2TB Antec Kuhler 620 3X Xigmatek 120mm (UV), 1X Xigmatek 140mm (UV) 
OSMonitorMonitorKeyboard
Windows 7 Ultimate x64 Apple 23" Cinema Display HD (1) Apple 23" Cinema Display HD (2) Dell Black Kid 
PowerCaseMouseAudio
Seasonic SS-660XP2 660W Cubitek Mini Tank Razer Imperator 2012 Klipsch Promedia 5.1 w/ Pioneer VSX-520 receive... 
  hide details  
Reply
mini ITX
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5-2500K @ 3.8GHz ASRock Z77E-ITX XFX Radeon HD 6950 2GB Kingston Hyper X 1600 RAM (2X4GB) 
Hard DriveHard DriveCoolingCooling
Samsung 830 128GB Western Digital WD2000KS 2TB Antec Kuhler 620 3X Xigmatek 120mm (UV), 1X Xigmatek 140mm (UV) 
OSMonitorMonitorKeyboard
Windows 7 Ultimate x64 Apple 23" Cinema Display HD (1) Apple 23" Cinema Display HD (2) Dell Black Kid 
PowerCaseMouseAudio
Seasonic SS-660XP2 660W Cubitek Mini Tank Razer Imperator 2012 Klipsch Promedia 5.1 w/ Pioneer VSX-520 receive... 
  hide details  
Reply
post #3 of 14
Well it's a calculation that's open to correction, but...

E6700 + 7900GT = 200 watts per hour, tops.

200 / 30 = 6.67 watts (two minutes worth of energy)

6.67 watthour = 5,732.3 calorie [I.T.] (courtesy www.OnlineConversion.com)

Assuming 1/2 liter of fluid in your system...

(1/2) * 1000 = 500 milliliters

5,732.3 / 500 = 11.46 calories per milliliter, which equals 11.46 C increase two minutes.

Now, remember that we don’t know exactly how much water you have in your system, and we don’t know the exact power consumption during the time the temperature increased. Obviously, both these factors play a large role in the calculated increase.
post #4 of 14
Thread Starter 
Quote:
Well it's a calculation that's open to correction, but... E6700 + 7900GT = 200 watts per hour, tops.
->{good math though}

I personally feel that this statement is wrong....a little. Guru3d reports that a mildly OC'd e6700 @ 3.2ghz puts out around 189w, I know the 7900 isnt putting out that much....

I guess my main Q is ...would a larger Rad, help increase the amount of time it takes to heat up the H20?

*And if the BIX II can remove up to 1831w of power from a loop, then why do I feel like I should be getting lower temps w/ only a 300-400w load?
post #5 of 14
hmm my reply may not look like the one above me but I can tell you I can shut all my fans off and go to bed and I go from 29c to 31c and stay there. I am not overclocking anything but that is only a 2 degree rise at idle with no fans . I have now got 4 bottles of PC Ice Extreme in it with 2 rads and a double 5 1/4 bay res..

Hope this helps

Option
BLACK
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 G0 @ 3.4 EVGA 780i FTW 2X XFX 9800 GTX 8 Gigs of Tracers 
Hard DriveOptical DriveOSMonitor
2 Raptor 74 Gig in Raid0 & 1 WDC 1Tb Asus DVD R/W Vista Ultimate x64 DELL UltraSharp 2405 
KeyboardPowerCaseMouse
Logitech G15 Gaming Keyboard PC Power & Cooling Slencer 750 Antec 1200 Razer Lachesis 
Mouse Pad
X-TRACK RIPPER 
  hide details  
Reply
BLACK
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 G0 @ 3.4 EVGA 780i FTW 2X XFX 9800 GTX 8 Gigs of Tracers 
Hard DriveOptical DriveOSMonitor
2 Raptor 74 Gig in Raid0 & 1 WDC 1Tb Asus DVD R/W Vista Ultimate x64 DELL UltraSharp 2405 
KeyboardPowerCaseMouse
Logitech G15 Gaming Keyboard PC Power & Cooling Slencer 750 Antec 1200 Razer Lachesis 
Mouse Pad
X-TRACK RIPPER 
  hide details  
Reply
post #6 of 14
Thread Starter 
LOL...sooo your Rad's arent workin...?

I at least have temp difference when the fans are on.....so back to my Q-> Does this indicate that I am close the the 'thermal Q' of the Rad, w/ the current load I am running? Or does it simply take longer to heat up your h20 because of the amount of water in your loop?

* I see tons of people getting lower temps than me on similar setups. Currently I am idling at 39c and loading at 53c @ 3.5ghz, 1.45v BIOS. I know I need to lap my cpu, its horribly concave....but this doesnt account for my temps. My GPU is on a seperate loop and it stays at 39c.
post #7 of 14
I can't really help out to much.

but my sig rig heats up in about 10 min using prime95 and will stick there till the computer starts the heat the ambient temp of the room. I dono if it makes a diffrence but I have little restriction in the loop with a d5 pump on high with a dual black ice gt rad and a passive reservoir.

I have a few render node pc's with amd 2x4400+ that use zalman air coolers and it takes them a good 20-30 min to hit peak temp. I dono why but it sucks because while rendering they hit 51C and the room is on fire because of the heat coming off them.
post #8 of 14
no that did make me sound stupid what i ment to say is i turn my fans down not off i have 3 panaflows and when they are cranked way up it sounds like a jet taking off in my living room so when i want to watch a movie or i go to bed i turn them to half and my temps only rise a little bit i have never turned them 100% off .. Sorry working to many hrs latley ..

Option
BLACK
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 G0 @ 3.4 EVGA 780i FTW 2X XFX 9800 GTX 8 Gigs of Tracers 
Hard DriveOptical DriveOSMonitor
2 Raptor 74 Gig in Raid0 & 1 WDC 1Tb Asus DVD R/W Vista Ultimate x64 DELL UltraSharp 2405 
KeyboardPowerCaseMouse
Logitech G15 Gaming Keyboard PC Power & Cooling Slencer 750 Antec 1200 Razer Lachesis 
Mouse Pad
X-TRACK RIPPER 
  hide details  
Reply
BLACK
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 G0 @ 3.4 EVGA 780i FTW 2X XFX 9800 GTX 8 Gigs of Tracers 
Hard DriveOptical DriveOSMonitor
2 Raptor 74 Gig in Raid0 & 1 WDC 1Tb Asus DVD R/W Vista Ultimate x64 DELL UltraSharp 2405 
KeyboardPowerCaseMouse
Logitech G15 Gaming Keyboard PC Power & Cooling Slencer 750 Antec 1200 Razer Lachesis 
Mouse Pad
X-TRACK RIPPER 
  hide details  
Reply
post #9 of 14
Thread Starter 
lol...sorry, the cooling sections arent listed any more in the sigs...

Heres what I got-> BIX II, D5, TDX, Zalman GPU block, single 5 1/2" res, 2 x 120mm 100+cfm ebmpapst 24v fans. This is setup w/ independant cooling loops for the CPU and GPU.

So our setups are similar, just wondering if I need to look into a 2nd radiator...or a larger one.

*I got 3 x 120 mm Nidec betaV's {24v}...they look like they would go nicely w/ a PA120.3, just not sure if I need to go that route yet, er' not.
post #10 of 14
As long as your rad is giving you decent temp's with the fans on it's fine..It doesn't take long for the little bit of water in a loop to heat up....A Bix Needs over 100cfm fans to operate correctly....I don't feel having a large res to hold more water helps any...Some people do...I feel that it will help it run cooler for a short time and then the water just gets hot and it does the same...
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Water Cooling
Overclock.net › Forums › Cooling › Water Cooling › How long does it take for you to heat up?