UPS just dropped off my S7 and it's hooked up to an EVGA 1600w Platinum ATX PSU hashing until my items from Finksy arrive and I hook it up to a Bladecenter 2880w PSU.
Only complaint so far is the machine is making a sort of high pitched whistling sound that comes and goes, sounds like a heart rate monitor when someone dies and it gives off that constant tone/flat line. Figured I'd let it run for a while to see if it dissipates on its own before trying to troubleshoot it. Anyone else have this issue?
Only complaint so far is the machine is making a sort of high pitched whistling sound that comes and goes, sounds like a heart rate monitor when someone dies and it gives off that constant tone/flat line. Figured I'd let it run for a while to see if it dissipates on its own before trying to troubleshoot it. Anyone else have this issue?
If I hold my hand up kinda close to the back fan the sounds stops. So some kind of rig for that?
Mine are in a datacenter so it can woo woo all day.
I used to put a gutted 120mm fan as a spacer between my s5 front fan and the chassis with 90mm screws.
Also put little spacers between the front grille and the fan giving about a quarter inch of space all around the edge of the grille.
Quieted down the s5 a bit. Fan is more efficient also.
The fan is really too close to the chassis on the s5 and s7.
So maybe a spacer between the back fan and the chassis?
Mine are in a datacenter so it can woo woo all day.
I used to put a gutted 120mm fan as a spacer between my s5 front fan and the chassis with 90mm screws.
Also put little spacers between the front grille and the fan giving about a quarter inch of space all around the edge of the grille.
Quieted down the s5 a bit. Fan is more efficient also.
The fan is really too close to the chassis on the s5 and s7.
So maybe a spacer between the back fan and the chassis?
I would agree with using your hand to investigate. What I did was use two fingers extended out over the edge over the back fan and the front fan. I would move my two fingers (index and middle finger) around the edge in a circular motion until my fingers were at a point where the noise was no longer audible. Once I found the location where the air being sucked in was no longer audible, I placed only one finger (my index finger) over the same spot and the sound was still no longer audible until I moved my index finger to another location. So, I was able to find the "sweet spot" to place the tape on the grille of the intake fan in front.
Every rig does not have the radiator type heat sinks in the exact same location on every chip. Some could be off or aligned in a certain way after manufacturing that allows for a whistling sound as wind is sucked in between the fins of the heat sinks when they are positioned just right. Since every rig does not have heat sinks in the exact same location and the exact same size [varying by thousandths of an inch]... this whistling noise is audible only on a small percentage of rigs that have these heat sinks aligned just right to allow for this audible noise.
This is why I feel a small piece of tape is sufficient to reduce the amount of air across particular heat sink(s) causing the noise. I noticed one miner had placed a piece of foam on the shelf in front of the fan to reduce the noise because that just happened to be the location on his particular S7 where heatsink fins were aligned just right to allow for the whistling noise. The location of where the wind rushes in across heatsinks will vary from one rig to another more than likely.
