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Old 20th April, 2006, 07:06 PM
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wats the maximum limit of PC uptime?

i have been downloading some huge ISOs lately, so was wondering how long can i keep my PC on w/out any break?? I think its obviously huge load for my PSU.... but there's nothing like this written anywhere...
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Old 20th April, 2006, 07:10 PM
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I restart mine about once a week.. Normally because I have too pending some sort of update or new software.
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Old 20th April, 2006, 07:21 PM
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I have 4 offices(clients) that haven't been rebooted since october...sheesh. time to give them a call i think!
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Old 20th April, 2006, 07:32 PM
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There is nothing written because there is no limit, if your computer components are of good quality, kept cool and dust free then they can run indefinutly (usually running linux as windows needs to restart for an update every few weeks) i once had a win 2k3 box up for 7months odd before power failure in the house. and prior to that i had a linux box up for some 320 days again power failure knocked it out. Both boxes were a glorified NAT / router and didnt actually do all that much.
The 2k3 box has since been moved into someone's loft where its still running today, the kit is 5 1/2years old and caps are on there way out (from the dodgy era)
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Old 20th April, 2006, 07:35 PM
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my computer is in my room so i have to turn it off at night. Is it ok to do this repeatedly?
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Old 20th April, 2006, 08:10 PM
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Quote:
Originally Posted by saquib
i have been downloading some huge ISOs lately, so was wondering how long can i keep my PC on w/out any break?? I think its obviously huge load for my PSU.... but there's nothing like this written anywhere...
Prior to MS instituting their 'reboot every time you download a patch, and patch every month whether you need to or not' policy, I had NT4 servers that would run upwards of a year without a reboot, and got worked pretty darned hard as well. However, all of my 2K and 2K3 servers will run non-stop until the next patch comes along. So long as you use quality PC components, 24/7 operation shouldn't be a problem.

You may be thinking about the infamous 'timeout' bug in Win95 and 98, where if the machine ran for 43 days without a reboot, it would just lock up because of some internal counter problem.

@Got Epox, yes, you can power cycle your computer repeatedly without harm. In the old days, this was considered a bad thing to do because the surge current from initial power-on was quite large and severely stressed components. Now days, PSUs all have 'soft-start' circuitry built into them to prevent such problems.
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Old 20th April, 2006, 10:01 PM
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Thanks for enlightening me Gizmo
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Old 21st April, 2006, 02:37 AM
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I leave all my boxes running 24/7. like Gizmo says, the only thing keeping
them from true 24/7 is the auto update/restart feature of 2K/XP. all are
folding and need to be looked at every day just in case something is amiss.

Ron
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Old 21st April, 2006, 03:22 AM
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In terms of security and reliability, you often find FreeBSD/OpenBSD right at the very top of the lists. Generally speaking, *BSD machines are only ever taken offline when its time to update them.

If you leave it alone, then years can come easily. In fact, with a well sorted FreeBSD/OpenBSD server, its more likely that the batteries in the UPS will expire before the unit fails.

My Windows XP machine is up to almost 2 months. Thats more because i'm too lazy to turn it off.
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Old 21st April, 2006, 07:41 AM
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woh................ thanks so damn much everyone. i thought more than 3 days could create stress on the system. so if there's no power outage or restart required by system, it should work pretty much as always 'eh? i use a Enermax PSU by the way - from teh point i see it, its a pretty good one compared to generic brands, just that it becomes hot so i was worried. although, i noted that heat level doesnt keep on increasing, it reaches a state amd stays at that temp. here, my room temp is around 28-32 degrees. thats pretty warm compared to many of you guys out there. im happy to keep my system on for 5-7 days continuous, thats just more than good enough for me. ill try lkeeping my other linux powered pc to stay on as long as possible. thanks again for clearing my concept.
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Old 21st April, 2006, 08:07 AM
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btw does anyone know how to get past ms Genuine Windows Validation? because i dont think i can get any more updates
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Old 21st April, 2006, 09:04 AM
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Yes - buy a legit copy of Windows. That fixes most problems that people have with Genuine Windows Validation.

As for uptimes - here's one from a server I administer

Quote:
Originally Posted by A server somewhere
$ uptime
7:49am up 314 days, 20:29
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Old 21st April, 2006, 10:14 AM
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Quote:
Originally Posted by Áedán
As for uptimes - here's one from a server I administer
*nix servers don't count Áedán

I usually reboot my computer purely out of boredom, not because of a restart being required or loss in performance.

IIRC the longest time I've had a win2k workstation up and running was 2 months..It was a first generation athlon 1ghz and ran CPU intensive tasks all day (including Seti@Home :P) ..it was brought down by a brown-out with the power
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Old 21st April, 2006, 10:18 AM
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Not sure what the uptime on the Windows box is at the moment, but it's certainly a number of months. As the question was originally "What's the maximum limit of PC uptime", I feel that UNIX systems are as good an indication as any other system. It is just a PC after all.
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Old 21st April, 2006, 10:27 AM
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Quote:
Originally Posted by Áedán
Not sure what the uptime on the Windows box is at the moment, but it's certainly a number of months. As the question was originally "What's the maximum limit of PC uptime", I feel that UNIX systems are as good an indication as any other system. It is just a PC after all.
Notice the after my *nix comment it was a tongue in cheek comment and I apologise if it stepped on any toes. I know that *nix will always out-do Windows. I would love to see Windows re-compile it's kernel without having downtime :P

As for maximum lifespan.. I remember in the early 90's a TV show called Beyond 2000 ran a piece on harddrives..in the early 90's a harddrive could take being turned on & off again continuously for 10 years (IIRC)...I believe that's an indication

Also the fact that people still have commodore 64's, VIC20's, Amiga's etc..et al
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Old 21st April, 2006, 11:06 AM
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Recompiling the kernel without downtime is no big deal. Swapping over to the new kernel does generally require downtime though.

As far as Windows vs Unix systems go, I'm not so sure that unix will "always out-do Windows". Looking at both Netcraft and the Uptime Project, it looks like Windows can manage uptimes in excess of 4 years. Interestingly enough, the top five systems on the Uptime Project are SunOS (x3), Windows 2000 and Linux.
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