Natoma said:
Bogotron said:
My disk server runs on a 430W Enermax PSU and it powers 13 harddisks, 7 case fans and a P3-700. The 650W/550W is overkill.
Hmmm. Have you ever had any issues with power, or the machine turning off?
Nope, nothing like that. Has worked fine for over a year with the only downtime being OS upgrade and a couple of windows update reboots.
Natoma said:
Also, the four Hard drives are spinning at 10000 RPM. I'll have 5 case fans, and a P4-3Ghz, which I'm assuming pulls a lot more power than a P3-700.
I'd think so. I've got a new motherboard for the diskbox (IC7-G w/2.4GHz P4), but I haven't had the guts to try it on the current PSU yet since my 12v rail is running low. Rough estimation tells me it should work, but I think I'll wait for my beefier PSU (the enermax 550W
) before I upgrade. With that I should easily be able to run both the P4 board and 3-4 extra harddisks.
Natoma said:
Is there a way to actually calculate need based on the parts I'm running? I just don't want to take a chance of purchasing all these parts, and then leave the power wanting.
Well, I use the rule of 100W for the cpu (mixed 3.3, 5 and 12v), 50-60W (3.3,5v) for the MB+memory, 50-70w@3.3/5v for the gfx card (depending on your choice between ati and nvidia of cource
), 2A@12v/disk&optical drive, 4W@12v/case fan and rough guesstimation of the other components. Just guesstimations on peak powerdrain though.
Natoma said:
I'll probably end up running FPS like DOOM, Half Life 2, and UT2K3. However, I also want to get into games like Warcraft III and maybe Asheron's Call 2. One of the MMORPGs.
I.e. no preference at all.
Natoma said:
Well that's the thing, I don't think we're going to overclock much in the beginning. Moreso if/when we want/need the extra power in the future. My friend Jon was able to oc his 3.0C to 3.5Ghz with the stock Intel fan and no voltage bump, so I was looking for maybe something like that.
Only way to guarantee a good OC is to get a peltier and a watercooling rig. Any other way and your left with a major gamble in regards to the cpu batch etc. I've tried OCing my P4, and it reached 3.2 without much fuss, but anything higher and it wasn't too happy. Also the stock intel fan started getting pretty persistent, sounded like a bunch of angry wasps trapped inside the case. It's probably the memory holding it back, but a 3GHz is a really poor choice for OCing overall. There is very little headroom for overclocking, and if you pooch it you've just thrown 400 bucks out the window. You can get 2-3 2.4GHz P4s and stress-test them. Then you throw away the ones that OC the worst...
Natoma said:
Hmm.. Would it be better then if I put the Western Digital Raptors on the SI RAID SATA ports as my boot disk (according to reviews it's far faster than the default Intel ICH5-R port setup), then get that 200GB SATA disk you're talking about and put it on the other port in a RAID1 setup?
Well, for raid-1 you need two drives (and you get only 50% of the total diskspace), so it's good for "safe storage" of data. So you'll need 2x200GB disks, but by all means, run them in raid-1. It should let you sleep better at night knowing that the bulk of your data is safe. Now, how about an UPS?
I'm booting off a 120GB maxtor sata disk and it's very fast, even when I haven't installed the Intel application accelerator drivers (the installer won't agree that my chipset is 875P... :? ). Faster than my old 80GB barracuda on an nforce chipset, so performance-wise I suppose a raid-0 raptor would be faster, but only for STR. Seek and access times remain the same (or are slightly worse) in a raid-0 setup, so do you really need massive sequential transfer rates?
Natoma said:
Is RAID0 really that unstable that I need to worry about doing the RAID0 setup on both channels I specified earlier?
Well, in raid-0, if one of the disks buy it, then all data is gone. Doubles the chance that you'll lose data from a disk crash (when using 2 drives, it gets worse the more drives you stripe). Important data should be on tape/cd-r and/or a raid-5 system anyway.
Natoma said:
Oh, the same friend, Jon. He has two Raptors in a RAID0 setup and it's really really quiet. That's why I didn't think noise would be an issue.
Only 10k rpm disks I've been near are some oldish seagate scsi thingys and damn are they noisy, but then again thats fairly common for scsi disks. If you can actually listen to them yourself there is no better way of making up your mind if they're quite or not.