Search found 11 matches

by D235hadow
Sun Apr 16, 2006 10:04 pm
Forum: SPCR Article Discussion
Topic: Seagate Momentus 5400.2 120G SATA notebook drive
Replies: 24
Views: 27374

I picked up the retail 60G PATA momentus 5400.(?) on sale a few days ago. This replaced a very, very loud 12G travelstar in a thinkpad T20, which is being used to make this post. Noise - My initial impression was pretty good, but not great. However, my opinion changed when I realized the low, interm...
by D235hadow
Wed Jun 29, 2005 5:25 pm
Forum: System Advice / Troubleshooting
Topic: slk 900-fan blowing up or down?-can i mount a 120mm on it?
Replies: 10
Views: 4035

It's been a while since I read anything about the slk's but everything I saw indicated better performance with the fan blowing down. This would also add airflow over your nb and mosfets. My fan blows down. I tried it briefly sucking air off the heatsink and found that there was a slight increase in ...
by D235hadow
Wed Jun 29, 2005 4:41 pm
Forum: Power Supplies
Topic: should seasonic offer 14cm fan psu?
Replies: 4
Views: 2323

I have one of the super flower 140mm fanned psu's in my spare parts bin. I wouldn't use it (I got it cheap, just to try it out). The airflow is audible and the fan, a 140mm blue led globe, growls. Lowering the rpms might cut the airflow noise but I imagine it would still growl. Also, it's about an i...
by D235hadow
Wed Jun 29, 2005 4:20 pm
Forum: Power Supplies
Topic: Antec SmartPower 2.0 - Finally some info
Replies: 58
Views: 32386

Regarding the blue/black monitoring wires, I found this out for myself the other week. Connecting it to the fan header on the motherboard appears to cause the fan to run at full speed all the time. Odd I thought, so I pulled out the black ground wire and just used the blue wire, fan stayed at quiet...
by D235hadow
Thu Jun 02, 2005 8:20 pm
Forum: Silent Storage
Topic: Mounting Harddrives at odd angles
Replies: 133
Views: 351470

Since my other thread was locked.. :roll: I've read through this thread before, but there seems to be no general consensus?? As for the poster asking about the temps, those are fine. Mine run at 45-50 degrees idle:D There may never be a general consensus. Some of us have attempted to show that the ...
by D235hadow
Thu May 12, 2005 6:43 pm
Forum: Silent Storage
Topic: Mounting Harddrives at odd angles
Replies: 133
Views: 351470

By spindle I mean the static axle which goes through bearings and discs. Designed supported at both ends or not it has no problem holding the weight at any angle. It's not important in the question. I am confused by what you wrote here. What do you mean by static axle? Are you referring to when it ...
by D235hadow
Sun May 08, 2005 7:53 pm
Forum: Silent Storage
Topic: Mounting Harddrives at odd angles
Replies: 133
Views: 351470

My conclusion: Since only horizontal and vertical disc axis mountings are free from gyroscopic precession, I still believe this is why HDD manufacturers recommend mounting perpendicular to gravity. The first part of this is an incorrect statement. Allow myself to quote... :? myself: Any drive orien...
by D235hadow
Wed May 04, 2005 5:35 pm
Forum: Silent Storage
Topic: Mounting Harddrives at odd angles
Replies: 133
Views: 351470

Its average y-velocity is zero, obviously, otherwise you will not find your drive where you last left it. This makes your calculation relative only if the head flies by itself above the disc rotating freely in space. As everything is fastened the only disc y-axis acceleration to speak of will be wh...
by D235hadow
Sun May 01, 2005 2:17 pm
Forum: Silent Storage
Topic: Mounting Harddrives at odd angles
Replies: 133
Views: 351470

Well, the head has a fly height of less than half a microinch (a human hair has a thickness of over 2000 microinches). I wouldn't say that "Displacement of the disc axis would require that the bearings have a significant amount of play." :? Drives can take "shocks in the tens of g's" because the di...
by D235hadow
Sat Apr 30, 2005 11:14 pm
Forum: Silent Storage
Topic: Mounting Harddrives at odd angles
Replies: 133
Views: 351470

Any drive orientation with a horizontal axis of rotation (aka vertical drive orientation) will experience the greatest tendency for gyroscopic precession compared to any other orientation (assuming gravity is the cause, not some other force). Bearing load is uneven when the drive orientation is any ...
by D235hadow
Fri Apr 22, 2005 7:48 pm
Forum: The Silent Front
Topic: Hissing Router, yeah, its louder than youd think.
Replies: 13
Views: 8709

Hi, Your problem is probably the router's voltage regulator. I have the same issue with an old router (a newer one makes no such noise). It's the switching noise (pwm). If you have a fairly good understanding of the router's internals, it's possible it could be modified to run off a well regulated p...