try moving the hard drive from slot 1 to the back of the machine (4).
Tricky...I've got four hard drives...!
try moving the hard drive from slot 1 to the back of the machine (4).
I'm getting an odd resonance-related problem with my Mac Pro.
It starts quiet, but after a while a very-audible 'hum' starts that builds in intensity. If I grab the top handle and lift the case a few cm, the hum disappears. Then it's a matter of time before it comes back. From reading the posts, I don't see anyone else who has this problem...
Also, it started after I fitted some 3rd-party RAM with heat spreaders...I've taken the boards out and re-seated them and I've fitted additional heat sinks to the RAM -- the problem is still there.
Also, to anyone else who's using the AcceleroX2 cooler with an X1900 -- how's the fit inside the Mac Pro case? Anyone got any pics of this in situ?
Did you try taking the RAM out and replicating the problem? That way you would isolate it to that.
My Mac Pro with X1900 is barely audible. When I play WoW, the graphics card whirs slightly more, but it is still much quieter than ANY PC I've had in the last five years.
Just got my Mac Pro. I updated from an iBook G3 that was absolutey silent. Like 0 decibels. This new Mac Pro, it's silent, but not THAT silent. I can hear it all the time, it's like a mmmmmmm sound, a constant humming. I think that it are the fans? Is that normal?
I did the EFI update, heard the fans take off like a jet, to return the way they are now, the constant humming. It sounds like my brothers dell.
What graphics card have you got in the Pro?Basically, I have found that my Mac Pro is just barely above the sound of my iBook G4 ...
What graphics card have you got in the Pro?
Sean
Most of the noise issues are either the X1900 XT or the hard drives. What drives are you using (if you don't mind my continued nosiness )?Just the base NVIDIA GeForce 7300 GT.
Most of the noise issues are either the X1900 XT or the hard drives. What drives are you using (if you don't mind my continued nosiness )?
Sean
I may experiment with a WD Raptor at a later date, realizing that it's an audible screamer.
I've noticed that many of the posters here have made reference to "humming" sounds with regard to the operation of their HDDs within the confines of the Mac Pro case:
IMHO, I've noticed that while the construction, fit, finish, and quality of materials is very good with regard to the new Mac Pro case, no doubt any metal-to-metal contact between any of the HDD caddies and the frame of the computer could certainly cause a mechanically-amplified hum; perhaps reseating one or more of these HDD caddies (or removing the unused ones) would help to alleviate this audible anomaly...
THX --
You have just described my problem exactly. It seems to be the drives sleds, then. I have all four full.
Hmmm... I wonder if greasing them would make any difference?
Pass the butter.
THX et al
Using the Hitachi feature tool (or indeed WinAAM will suffice) you can set AAM on the Raptor to its quietest setting. This makes it quiet and quick!
Does it help if you tap on the sled a little to nudge them into a spot where it stops humming?
THX et al
Using the Hitachi feature tool (or indeed WinAAM will suffice) you can set AAM on the Raptor to its quietest setting. This makes it quiet and quick!
THX --
You have just described my problem exactly. It seems to be the drives sleds, then. I have all four full.
Hmmm... I wonder if greasing them would make any difference?
Pass the butter.
WinAAM adjusts firmware settings on the drive itself, it does not need to know about anything that's actually on the drive. With regards to whether you could loose data, it is extremely unlikely but you should backup first.How do you get the WinAAM to work on drives that are formatted for OSX? I can't see any of my Mac formatted drives when I'm booted into windows so I don't understand how you can manage the accoustics. Maybe I'll go try anyway... I wonder if it will screw up my data?
Part of the problem it seems is that I mixed drives. I was talking to an Apple guy at MacWorld and he told me his computer drives are virtually silent (no vibration or humming). The difference is that he used 4 identical drives from the same manufacturer. Currently, I have the stock Seagate 160 for OS and applications, Two WD RE 320's setup as RAID0 and One WD SE 500 for storage. I guess my Mac doesn't like diversity.