View Full Version : Ya think Jackal's crazy for punchin' a hole in his wall? Check this out!
False Christian
05-05-03, 07:12 AM
How 'bout this?!? I'm using a small room air conditioner to cool my ATHLON XP 2400+. It's blowing cold air directly into the case and my temps go as low as -8 Celsius for the mobo and 17 Celsius for the CPU and upto 18 Celsius and 44 Celsius when the air conditioner turns the cold off and just shoots in air. I am freezing right now, know what I'm sayin'?:drool:
RadRacer
05-05-03, 07:37 AM
Where in the world did you get a room air conditioner that blows -8 degC? It sounds to me like your temperature monitor program is waaaaaay off. There's no way a room air conditioner could do that unless you're actually pumping the freon into the case. In which case, that unit will last another 10 minutes.
slater3333uk
05-05-03, 08:03 AM
yeh im doubtful of -8c
16c sounds possible if you are ducting sub zero air into your hsinkl
have you got a pic and/or details of the a/c you are using?
RadRacer
05-05-03, 09:48 AM
I don't even think 17 is possible. Maybe the A/C would blow that cold, but there's no way the chip would get that cold.
I was under the impression that air conditioners blew relatively humid air . . . watch out for condensation, especially on hot days. With that kind of air flow throughout your entire case, it might not be an issue, since the air is moving fast enough to keep moisture from settling on anything and the whole case is relatively the same temperature with only one hot-spot. Be careful, though . . .
Z
Originally posted by zachj
I was under the impression that air conditioners blew relatively humid air . . . watch out for condensation, especially on hot days. With that kind of air flow throughout your entire case, it might not be an issue, since the air is moving fast enough to keep moisture from settling on anything and the whole case is relatively the same temperature with only one hot-spot. Be careful, though . . .
Z
Air conditioners, in general, dehumidify the air. So condensation is not a problem, I have thought about setting up a closet to cool my pc with, but what happens in winter and you turn the heater on and hot air starts blowing on the CPU?
Something to thing about...
-TheComputerGuy23
RadRacer
05-05-03, 03:27 PM
It's not the process going through the air conditioner that creates the problem. It's the object that the cold air is blowing on where you have a problem with condensation. Yes, you are right, as air passes through an AC unit it does become dryer, but as soon as the temperatures of the surrounding materials drop below ambient, water will condense on them. In this situation, his computer case.
Well . . . I wasn't really sure how condensation formed from A/C, I just knew that it does happen somehow. It's the same as climbing out of an air conditioned car into a steamy afternoon. The humidity from the surrounding air condenses on you and you feel instantly clammy.
Z
yea I can see how condensation could form.
-8 degrees? why dont i believe you :D
False Christian
05-06-03, 07:29 AM
Well, I'm using Motherboard Monitor 5 and it does report down to -8 Celsius for the mobo so I ain't lying. I have the small 5200 BTU air conditioner on the floor sitting right next to the computer blowing the cold air directly into the open side, know what I'm sayin'? Now I can hit 2.8GHz (14x200) on my ATHLON XP 2400+ whereas before I could only get to 2.3GHz (11.5x200). These CPUs run hot as hell and a good watercooling system costs more than $400 Canadian up here so I had to do something. So, I bought this small $179 Canadian air-conditioner and it works better than any water cooler can.:argue:
At what cost? Electricity and noise are no less than twice the concern they are with water cooling. Congrats on the 'clock, though. Gives me ideas. I don't, however, believe those temps. Check them in BIOS and see what the BIOS says. Also, in MBM5, make sure that MBM5 isn't set to compensate by a few degrees. That is an option there if you know for a fact that the BIOS reports temperatures too high and you know exactly how far the sensor is off . . . Make sure that's at zero.
Z
tread70
05-06-03, 01:26 PM
A friend told me he was going to build an AMD system. Of course I told him he might as well strap a 5000 btu a/c to the side of it. I never thought anyone would actually do it , LOL :)
RadRacer
05-06-03, 02:14 PM
It's not a question of what motherboard monitor can do. All it's doing is reading a Thermal diode, or perhaps a thermal conductivity detector. Either way, there is no arguing that MBM5 is accurate. However your TCDs or TDs may be defective. You should try it with another motherboard if you have one. Perhaps you're misreading that '-' sign and it's really a 1. Window mount A/C Units DO NOT, CAN NOT, and WILL NOT blow at -8 degrees C. The lab I work in has a cold room and I can assure you the compressor alone for that thing is as large as a window unit, and it only keeps a room the size of a walk in closet at -4 degrees C. Unless you're pumping the freon straight on to the die, there is no way you'll see those temperatures. And even if you were when you recorded them, a day later you would have no freon left, so you wouldn't be cooling like that anymore.
"Know what I'm sayin'?"
Lazlo Panaflex
05-06-03, 02:22 PM
"Know what I'm sayin'?"
lol :clap:
Punisher69
05-06-03, 03:10 PM
Originally posted by RadRacer
It's not a question of what motherboard monitor can do. All it's doing is reading a Thermal diode, or perhaps a thermal conductivity detector. Either way, there is no arguing that MBM5 is accurate. However your TCDs or TDs may be defective. You should try it with another motherboard if you have one. Perhaps you're misreading that '-' sign and it's really a 1. Window mount A/C Units DO NOT, CAN NOT, and WILL NOT blow at -8 degrees C. The lab I work in has a cold room and I can assure you the compressor alone for that thing is as large as a window unit, and it only keeps a room the size of a walk in closet at -4 degrees C. Unless you're pumping the freon straight on to the die, there is no way you'll see those temperatures. And even if you were when you recorded them, a day later you would have no freon left, so you wouldn't be cooling like that anymore.
"Know what I'm sayin'?"
onto the die?????????? he's referring to the mobo temp sensor or case temp sensor is giving him a -8 degree's not the cpu he claimed his cpu was at 17 degrees
Regardless of what the temperature is, it's got to be pretty low. Keep in mind that this guy gained an extra 500 MHz from doing this, so it's quite possible that his cpu temp is close to 17°C. Gaining another 500 MHz by simply lowering your processor's temperature would require that temperature to drop a LOT.
RadRacer, you mentioned that The lab I work in has a cold room and I can assure you the compressor alone for that thing is as large as a window unit, and it only keeps a room the size of a walk in closet at -4 degrees C.
Compared to the volumetric size of a computer case, a walk in closet is massive, so it's definately possible that a 5200 BTU air conditioner could keep the air in a computer case at a temperature low enough for a motherboard to run @ -8°c.
Lazlo Panaflex
05-06-03, 04:31 PM
Falso Christian, Can you post some pics of the cpu at 2.8 gigs, along with a prime95 shot too?
Ugmore Baggage
05-06-03, 06:08 PM
Canadian air conditioner? Is this "air conditioner" big and flat and you can see through it? In other words, did you just open a window?
a c i d.f l y
05-06-03, 06:32 PM
Originally posted by Ugmore Baggage
Canadian air conditioner? Is this "air conditioner" big and flat and you can see through it? In other words, did you just open a window?
...mwahahahah :p
-Frank
RadRacer
05-06-03, 06:49 PM
Punisher96, in order for anything in that case to be at -8, the air blowing out of the A/C unit has to be at least -8 if not colder. Therefore even if his claim of 17 on die is accurate (which I doubt it is) the claim of -8 on the Northbridge is simply not possible. I was not saying that he was cooling using freon, but that the only way to get temperatures that low with a window mount A/C unit was if it had spruing a freon leak and was blowing straight freon onto the die.
Tio, the refrigeration units that cool our cold rooms are about the size of a full size refrigerator. These rooms are insulated beyond belief and thus maintain their temperatures leagues better than a computer case would. In fact, the heat soak into the computer case from the surrounding air is probably greater than the heat soak into the cold room. Thus, the window mount A/C unit would have to work harder than the cold room compressor would, and it simply won't happen.
Yes, 500 Mhz is a large gain. However I place as much faith in those processor speeds as I do his temperature readings.
Originally posted by RadRacer
Tio, the refrigeration units that cool our cold rooms are about the size of a full size refrigerator. These rooms are insulated beyond belief and thus maintain their temperatures leagues better than a computer case would.
OK, thanks for clarifying that for me. :)
Erm . . . Just to clarify, I'm not saying MBM5 is wrong. It can't be wrong. All it is is an interface to read the temperatures off of sensors, which can be wrong. Knowing that, the authors of MBM5 included the capability to "correct" the error in sensors by commpensating for it. If you know your temp sensor is 6C off, you simply tell MBM5 to report the temperature associated with that sensor 6C lower than it would. This is a feature, not a flaw. I don't accept the temperatures either, which is why I was telling him to make sure that the temperature isn't being reported lower because the sensor is off.
Z
emericanchaos
05-06-03, 09:18 PM
reguardless of any of the temp sensor arguing, you need to worry about condensation. i'd stop this reall fast. try to duct the air into a fan or something. you don't want air that cold hitting hot surfaces
you can get some special grease and not worry about condensation... i forgot where i saw it, you'll prolly find it on any oc review sites
i never had condensation probs. benn ducting the ac into my comp for about 6 years now. in the winter i duct the outside air to it. works great.
Lazlo Panaflex
05-07-03, 12:16 AM
Are air conditioners loud? I was thinking of getting cheap one for my the room with my two computers in it, because its always hot in here.
i never had condensation probs. benn ducting the ac into my comp for about 6 years now. in the winter i duct the outside air to it. works great.
Ziah, What are ur temps like?
a c i d.f l y
05-07-03, 12:39 AM
Originally posted by Lazlo Panaflex
Are air conditioners loud? I was thinking of getting cheap one for my the room with my two computers in it, because its always hot in here.
Ziah, What are ur temps like?
...the older and cheaper they are, the louder and less efficient they are. Newer ones tend to have cheaper materials to maintain cheap production costs, but they perform better than anything before their time.. albiet they don't last as long... and freon always runs out eventually.
-Frank
A/C units were originally invented to dehumidify air and cooling was just a nice side effect. When warm moist air moves across the condenser coil, it becomes denser as a result of becoming colder. This causes the moisture in the air to condense on the coils leaving the air very dry. For this reason condensation INSIDE his case should not be an issue. On the outside..... And as far as his temps, The -8C may not be accurate but the 17C cpu could be. I have done this mod (http://forum.oc-forums.com/vb/showthread.php?s=&threadid=190615) myself and you can see the results in the thread. My idle temps as of now are around 9C in windows and 5C in bios. And I believe that Ican get them even lower with a few more mods. Keep up the good work false christian and post some screen shots of some temps and speeds.:)
Cereal Killa
05-07-03, 06:25 AM
Originally posted by Ugmore Baggage
Canadian air conditioner? Is this "air conditioner" big and flat and you can see through it? In other words, did you just open a window?
OMG, LOL LMAO ROFL.
HahHAHahHAHAhahHahAHahHAHAhahhahahHAHAAHaHAhahHAh
:D :D :D
blackhabit
05-07-03, 06:30 AM
i will be there first to say nice OC
Supertrucker
05-07-03, 06:31 PM
he doesnt have to be lying. if you put a window unit ac in a room with an ambient temp of 0c the air will probably get colder. same unit in a room at 60c will not be able to the ambient air to anywhere near 0c.
Exactly, regardless of what the actual temperatures are, this guy gained 500 MHz from doing this. That's what matters. What would he have to gain by lying? Nothing; it's not going to allow him to overclock higher or anything like that. I believe the guy.
Excelsior
05-07-03, 08:58 PM
I must thank you actually.. you have inspired me....
god willing this is my plan partly insipred by you:
I am going to first tear open a freezer and use teh cold coils dunked ni water to get a chiller with my bong cooler... then i will get rid of bong put in addative to get less than 0 temps without ice foming, get a large radiator affix it to front of a small air conditioner.
I SHOULD be able to get pelt or better temps hopefullly without another power supply... :)
Too bad im goign toh ave to insulate :( oh well
Good luck! When I make the switch to water, I'm planning on doing something along those lines.
nakman8
05-08-03, 09:20 PM
Originally posted by tcg23
Air conditioners, in general, dehumidify the air. So condensation is not a problem, I have thought about setting up a closet to cool my pc with, but what happens in winter and you turn the heater on and hot air starts blowing on the CPU?
Something to thing about...
-TheComputerGuy23
Yes,I agree they dehumidify the air,that's why there are drain holes on the coils.
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