HP9000 C8000 noise

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HP9000 C8000 noise

Unread postby Shiunbird » Mon Nov 13, 2017 6:46 am

Hi everyone,

I wonder how loud these are, I'm thinking of getting one.
Anyone has an idea?

Thanks!
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Re: HP9000 C8000 noise

Unread postby jpstewart » Mon Nov 13, 2017 8:41 am

The C8000 is one of the quietest machines in my collection. It's certainly quieter than any of the SGI machines I own. I think it's roughly on par with my Sun Blade 2500, if you're familiar with the sound of those. It makes sort of a low whooshing sound rather the high-pitched whine that some machines make.

I work in a rather noisy environment to begin with, but the C8000 certainly doesn't seem to add anything to the background noise. (All of my SGIs make enough noise to be clearly heard even in here.) On the other hand, if you're the sort of person who wants total silence then my opinion might not be very helpful.

It certainly seems to me like HP put some thought and engineering effort into making it quiet enough to use all day in an office environment. That's one of the things I appreciate most about the machine.
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Re: HP9000 C8000 noise

Unread postby jirka » Mon Nov 13, 2017 3:48 pm

I have the same experience. These things are unusually quiet.
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Re: HP9000 C8000 noise

Unread postby ClassicHasClass » Mon Nov 13, 2017 5:51 pm

A quiet low whoosh as jpstewart reported, even my dual 1.1GHz PA-8900 setup. Makes my Quad G5 even more obnoxious by comparison. They're very well-behaved machines in that respect.

The real problem with it is it draws even more juice than the Quad. I clocked it pulling almost 450W once; even OpenPA says 410W is "typical." My hardworking Quad G5 may be louder when it's cranked up, but it usually doesn't go over 300W, even with the Quadro 4500.
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Re: HP9000 C8000 noise

Unread postby Raion-Fox » Mon Nov 13, 2017 7:57 pm

I had one. Relatively quiet. Power consumption was high enough that I couldn't run it on the same circuit as my origins though.
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Re: HP9000 C8000 noise

Unread postby Shiunbird » Tue Nov 14, 2017 1:09 am

Thanks!

I own a Quad G5 and an IBM 285, and if they are quieter than these, then it's ok.
I find the 285 louder, but less annoying, than the G5. It's a more constant sound, without annoying interference and overlaps.

My 285 idles at around 250W-300W, depending on its mood. I've not yet measured my G5. Everything I own that stays up 24/7 are now clocking 135W.

The goal here is to own as many of the Unix flavors I can, in all different platforms. I keep looking around.
The supply of C8000s on ebay seem good now, so I might score something. And I look for machines that are powerful enough to still do useful work, thus I ask.
I just don't want any super loud machines at the moment, since I lost my noise cancelling headphones.
I got last month a dual G4 MDD for some Mac OS 9 needs and IT IS SO FREAKING LOUD. Idles at 100W (65W with CPU Nap enabled), but I just can't use it without getting a headache.
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Re: HP9000 C8000 noise

Unread postby johnnym » Tue Nov 14, 2017 2:09 am

Shiunbird wrote:My 285 idles at around 250W-300W, depending on its mood. I've not yet measured my G5. Everything I own that stays up 24/7 are now clocking 135W.

I once measured the power usage on startup and idle for my c8000 with 2 x PA-8800 @ 1GHz (2 CPUs, 4 cores), 4 GiB of memory (8 x 512 MiB modules) 1 DVD-ROM drive, 1 ATA HDD (still active at that time) and installed Radeon 9800 Pro with a wattmeter. And the c8000 is one of the few machines I own that draws less power on startup (about 273 W) than when idling (about 334 W) after the OS (Debian Sid) has loaded. Maybe it starts up with one of the CPUs or the secondary cores completely deactivated, I don't know.

I can also confirm that the c8000 is quiet compared to the amount of hardware and power it uses. This is quite impressive as everything is air-cooled. But it also puts out an enormous amount of heat, so there should be enough clearance at the back of the machine.

My machine recently got rather flaky and often crashed late during boot (with systemd already running). I suspect the PSU (maybe increased ageing of capacitors due to excess heat?) and removed the graphics card and hdd to limit the power that is drawn, as I anyhow only use it via serial console and ssh and most of the time diskless and this seems to have solved the issues for now.
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Re: HP9000 C8000 noise

Unread postby ClassicHasClass » Tue Nov 14, 2017 6:17 am

Shiunbird wrote:Thanks!

I own a Quad G5 and an IBM 285, and if they are quieter than these, then it's ok.
I find the 285 louder, but less annoying, than the G5. It's a more constant sound, without annoying interference and overlaps.

My 285 idles at around 250W-300W, depending on its mood. I've not yet measured my G5. Everything I own that stays up 24/7 are now clocking 135W.

The goal here is to own as many of the Unix flavors I can, in all different platforms. I keep looking around.
The supply of C8000s on ebay seem good now, so I might score something. And I look for machines that are powerful enough to still do useful work, thus I ask.
I just don't want any super loud machines at the moment, since I lost my noise cancelling headphones.
I got last month a dual G4 MDD for some Mac OS 9 needs and IT IS SO FREAKING LOUD. Idles at 100W (65W with CPU Nap enabled), but I just can't use it without getting a headache.


My goal personally is to own a representative of all of the major RISC families, which I've mostly achieved, I think (MIPS and PowerPC, of course, but also ARM, SPARC, Alpha, SuperH and PA-RISC so far -- still looking for a 88000). But the PA-RISC machines for me have particular nostalgia because my first job out of college was working on a K250.

I've heard the 285 is a little more smoothed out than the G5, though right now my Quad is quietly humming away as I type this with its fans at minimum. The UPS is reading about 250W with the cores at around 10% load.

I used an MDD for awhile and I still have one for Classilla and OS 9 work. The later ones are a little more well-behaved for noise but it's still a loud machine, overall louder than the Quad even though the Quad can be louder than the MDD when it's running flat out. This improved a bit with the replacement power supply and the Sonnet card, which probably runs a little cooler. However, there's a reason they were called the "wind tunnel G4."

The C8000 is a fine machine; if you're used to other high-power RISC workstations of the time, by comparison it's one of the more liveable ones.
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Re: HP9000 C8000 noise

Unread postby quinn » Tue Nov 14, 2017 6:54 am

ClassicHasClass wrote:My goal personally is to own a representative of all of the major RISC families


Why?

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Re: HP9000 C8000 noise

Unread postby johnnym » Tue Nov 14, 2017 7:56 am

quinn wrote:
ClassicHasClass wrote:My goal personally is to own a representative of all of the major RISC families


Why?

Maybe because these architectures are far more interesting than the hundredth infusion of x86. We should keep these things around for our children and their children to play with, don't you think? :)
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Re: HP9000 C8000 noise

Unread postby necron2600 » Tue Nov 14, 2017 8:15 am

Wrong forum to ask 'why' on collecting RISC platforms ;)

I personally collect (and use) all sorts of UNIX platforms and their relevant hardware. Its what I like to do and nekochan provides a community around that.

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Re: HP9000 C8000 noise

Unread postby quinn » Tue Nov 14, 2017 8:48 am

johnnym wrote:Maybe because these architectures are far more interesting


Can you prove me it?

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Re: HP9000 C8000 noise

Unread postby Irinikus » Tue Nov 14, 2017 9:02 am

Simply due to economy, modern computers have become far more generic than the computes of old were.

Modern machines function beautifully, don't get me wrong, but due to their generic nature, they don't seem as interesting to computer hardware enthusiasts as older machines do.

Nowadays, the two main players are simply Intel and AMD, whereas in the past, there were far more options.

Intel effectively hijacked the RISC CPU market with the itanium, which was simply a strategic move in my opinion, which lead to the failure of MIPS and ALPHA, thus effectively eliminating the competition from RISC architectures and allowing them to take the entire market.
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Re: HP9000 C8000 noise

Unread postby johnnym » Tue Nov 14, 2017 9:31 am

quinn wrote:
johnnym wrote:Maybe because these architectures are far more interesting


Can you prove me it?

No and I think there's also no need for prove. Finding things - whatever they are - interesting is simply a very personal subjective thing. :)
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[ ( hp ) ] 712/80 c3000 (dead) :hpserv: (J5600) c3700 c3750 c8000 rp2470 :rx2600: (rx2620) rx4640
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Re: HP9000 C8000 noise

Unread postby quinn » Tue Nov 14, 2017 10:29 am

johnnym wrote:
quinn wrote:
johnnym wrote:Maybe because these architectures are far more interesting


Can you prove me it?

No and I think there's also no need for prove.


If you affirm something, there must be argumentation to prove it.


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