If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#11
|
|||
|
|||
Typical mains power for mid-range PC?
kony wrote
Rod Speed wrote kony wrote Rod Speed wrote kony wrote Rod Speed wrote Jon D wrote If I have a hard drive which has a protective sheet of metal on one side and the circuit board on the other side then which of these two side should get the most cooling? Varys with the drive design. The only real way to answer that question is to try it both ways and monitor the drive SMART temp. NO, it does not vary per drive design, Fraid it does. Most obviously with the older Barras which have a metal plate and rubber mat over the logic card etc. plate and rubber don't suddenly make a cover plate more conductive than it is, It does however mean that the LOGIC CARD gets significantly less cooling from the airflow than with drives with exposed logic cards, child. Yes clueless one, that makes the airflow over that area all the more important. No it doesnt, those drives clearly dont get rid of the heat from the logic that way. And have fun explaining why Seagate doesnt say that its crucial to have a high airflow rate over that side of those drives either. Keep desperately digging, you'll be out in china all over again any day now. if you cool the area with longest conduction path and least tRise, you've let the rest get hotter than it otherwise would. Irrelevant waffle to that stupid pig ignorant claim that all drives are the same on that cooling question, child. Rod, what's with this "child" notion? I may easily be older than you. Bet you aint, child. And more important, I don't have the need to BS my way out of a paper bag, You clearly do. or rather, all drive designs are putting the board on the bottom, and a thin cover on the top, Plenty of top covers arent thin. On modern drives? Yep. Which ones? Depends on how you define modern, child. Ah, so you have nothing, just a black hole of knowledge. Never ever could bull**** its way out of a wet paper bag. thus need more cooling on the bottom circuit board than (if any on) the top cover. Not a ****ing clue, as always. Plenty of drives still get rid of quite a bit of heat thru the metal body of the drive. Bottom, yes. The top only gets hot as a function of how hot the interior was, because the bottom wasn't cooled enough, Not a ****ing clue, as always. Didn't need a clue. Corse you do. Drives run cool here, unlike those you keep mentioning as warm or hot, every 3rd thread about HDDs. Never even mentioned hot, you silly little pathological liar. Did it ever occur to you that you might have no concept whatsoever about the most basic fundamentals of HDD cooling? Never ever could bull**** its way out of a wet paper bag. ALL it takes is to MEASURE the drive temp with the SMART temp, child. Really Rod, it's not a hard thing... you argue that you know something and yet drives are warm, contrasted with the opposing strategy that results in cool drives. Only a fool furiously drives air over drives when their temp is below 40C child. Seems almost ironic. Never ever could bull**** its way out of a wet paper bag. and of course a minor friction of platter/air inside the chamber but again, it is not only as well but better cooled by the bottom because the top is still secured by a gasket material which impedes heat transfer from other portions of the drive which likewise heat up. Not a ****ing clue, as always. And have fun explaining how come some drive manufacturers explicitly state that the drive temp limits apply to a specific location on the top cover, child. Show us this spec Rod. How many of you are there between those ears, child ? http://www.hitachigst.com/tech/techlib.nsf/techdocs/CE3F5756C827F35A86256F4F006B8AD4/$file/7K500_spv1.3.pdf http://www.hitachigst.com/tech/techlib.nsf/techdocs/67E6793B17F602DF86256E460065F563/$file/7K400_spv1.6.pdf Sec 7.2.1, first note, child. You'll find that with the bulk of their drives too. You've made up so much BS recently I can't take anything you write at face value anymore. Got a VERY large towel handy for your face, have you child ? Oops, I deleted the rest of the post. Was it a loss or did you just write something about BS and paper bags a few dozen times? Never ever could bull**** its way out of a wet paper bag. |
#12
|
|||
|
|||
Typical mains power for mid-range PC?
On Sat, 29 Jul 2006 02:49:06 -0400, kony Gave us:
On Sat, 29 Jul 2006 07:56:58 +1000, "Rod Speed" wrote: Jon D wrote If I have a hard drive which has a protective sheet of metal on one side and the circuit board on the other side then which of these two side should get the most cooling? Varys with the drive design. The only real way to answer that question is to try it both ways and monitor the drive SMART temp. NO, it does not vary per drive design, or rather, all drive designs are putting the board on the bottom, and a thin cover on the top, thus need more cooling on the bottom circuit board than (if any on) the top cover. In the majority of drives, the top cover is barely (if at all) even joined to the rest with a reasonably conductive junction, instead they typically have a silicone or some other type of flexible gasket. They may feel warm but this is more a function of heat rising because it wasn't removed more immediately from the hot areas instead of left to heat up surrounding areas. I'm sure you'll argue Rod, but you're quite wrong in general and offhand I don't recall any hard drive EVER MADE that needed as much, let alone more cooling on the top metal. In other words, a drive can be completely cooled with airflow over the bottom only. It cannot with airflow only over the top. This is correct. ALL drives are made such that the platters and the "clean room" box they are in operate at a soaked temperature that is fairly warm to human touch. Most also keep their lid disconnected from the main body of the "platter box", thermally speaking. The heat that lid exhibits is 100% due to the air temp in the platter box. The exposed spindle driver/controller board on the bottom of the drive is what is supposed to be cooled, and that is why it is not "inside" the drive case. It is highly emissive due to the way chip maker package their chips in a matte finish package. It is so they can radiate their heat in a manner other than mere conduction through the lead frame. |
#13
|
|||
|
|||
Typical mains power for mid-range PC?
On Sat, 29 Jul 2006 17:52:52 +1000, "Rod Speed"
Gave us: NO, it does not vary per drive design, Fraid it does. Most obviously with the older Barras which have a metal plate and rubber mat over the logic card etc. You are full of ****. Some drive makers place such things on their SPINDLE driver sections of their PCBs. Very few drives have multiple PCBs in them now (not including within the plater/head box), and both the spindle drivers as well as the CONTROLLER electronics are integrated together on that one board. There are plenty of drives, even the 10k RPM versions that have no sinking metals on this board at all. There are some that do. So it doesn't vary by design so much as by manufacturer. It is not required, and the bottom of the drive is STILL the place where cooling air currents should be directed. |
#14
|
|||
|
|||
Typical mains power for mid-range PC?
On Sat, 29 Jul 2006 17:52:52 +1000, "Rod Speed"
Gave us: or rather, all drive designs are putting the board on the bottom, and a thin cover on the top, Plenty of top covers arent thin. Now, you are a semantical twit. A 20 Ga stainless lid is quite stiff. but to someone used to heavier sheet steel calling it thin is NOT incorrect. For you to assume he meant foil thin is just more proof of how pedantic (and ignorantly so) you are. |
#15
|
|||
|
|||
Typical mains power for mid-range PC?
On Sat, 29 Jul 2006 17:52:52 +1000, "Rod Speed"
Gave us: Not a ****ing clue, as always. Plenty of drives still get rid of quite a bit of heat thru the metal body of the drive. Drives exhibit heat on all their surfaces. The emissivity of the surface determines the degree to which they radiate. A shiny polished lid has a relatively low emissivity, and yes, surface finish does matter. That is why chips have matte finishes. I have drive mounts that do not have conduction paths for heat through them. The drives are cooled completely by air currents. |
#16
|
|||
|
|||
Typical mains power for mid-range PC?
On Sat, 29 Jul 2006 17:52:52 +1000, "Rod Speed"
Gave us: In the majority of drives, the top cover is barely (if at all) even joined to the rest with a reasonably conductive junction, Not a ****ing clue, as always. You are full of ****. How many drives have you ever seen open? That won't matter because you are too ****ing clueless to know what the engineers were doing when they designed the drive. |
#17
|
|||
|
|||
Typical mains power for mid-range PC?
"kony" wrote Rod, what's with this "child" notion? I may easily be older than you. Kony, Just filter him out! It's heaven. -- Ed Light Smiley :-/ MS Smiley :-\ Send spam to the FTC at Thanks, robots. Bring the Troops Home: http://bringthemhomenow.org |
#18
|
|||
|
|||
Typical mains power for mid-range PC?
On Sat, 29 Jul 2006 17:52:52 +1000, "Rod Speed"
Gave us: instead they typically have a silicone or some other type of flexible gasket. Separate matter entirely. Not when the subject is thermals, you ****ing utter retard. |
#19
|
|||
|
|||
Typical mains power for mid-range PC?
On Sat, 29 Jul 2006 17:52:52 +1000, "Rod Speed"
Gave us: Have fun explaining how come that cover STILL gets warm even when the drive is mounted upside down. You're an idiot. The air inside the platter box is virtually motion free, yet air has a pretty good conduction rate to surfaces it is against when it is hot air. The lid temp will not change much, if at all, regardless of the physical mounting configuration for the drive. That does not include using the lid as a conduction cooling element against a metal surface. We are talking about bare lids here. Squirm, you retarded twit. |
#20
|
|||
|
|||
Typical mains power for mid-range PC?
On Sat, 29 Jul 2006 17:52:52 +1000, "Rod Speed"
Gave us: Never ever could bull**** its way out of a wet paper bag. Do you always spew the same old tired CRAP to everyone that disagrees with you, boy? |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Typical mains power for mid-range PC? | Jon D | General | 52 | August 1st 06 02:18 PM |
My monitor went black in Linux/Debian (X) and text mode earlier today... | [email protected] | Nvidia Videocards | 9 | June 15th 06 12:00 AM |
24 pin power supplies, stability issues? | Don Burnette | General | 28 | March 13th 06 10:25 PM |
Newbie: OC Advice: AMDXP2200 CPU | Donald Bock | Overclocking AMD Processors | 2 | March 12th 05 12:14 AM |
Processor heat dissipation, Leakage current, voltages & clockspeed | The little lost angel | General | 21 | November 1st 04 02:43 AM |