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post #16 of 31
What is an i7 box? You mean a computer running an i7 cpu don't you? Anyway, CPU temps has is irrelevant. The core temperatures are what matters. Download RealTemp and take show me your results And yes, of course the OP should get an i7 Anything else and you will regret it BTW, 36c is actually very high. Right now it is warm and I have no aircon. Cpu temp is 29c and core temps are about 42c idle.
post #17 of 31
Also Keller, download Prime95 (LinX is better, but I don't use it) and run that for 20 minutes. If none of the flags (threads) goes red, your CPU is stable. If it does, you will have to increase voltage. My ambient temp is probably 23c right now and idling at 43c on my four cores. When the ambient temperature has been as little as 10c, I have seen 28c idle temps, very good. At 3.8ghz, you don't want to have a load temperature of over 70C, 65c would be ideal. With any overclock, you do not want to exceed 85c with a 24/7 overclock, it will degrade your cpu life.

EDIT: Is your i7 a D0 or C0? I imagine it is is a C0. If it is a D0, try reducing the voltage. I run 1.35V at 4.2ghz. Most i7 920s can run at 1.3V at 4ghz, so 1.336V for 3.8ghz is a bit too high for a D0, if it is.
post #18 of 31
199.99 for the processor, the only things that are really any more expensive are the mother board and the triple channel memory. 70 or so more bucks on the mobo and i got my 6g tripple channel kit for around 150 verus 100 for a fast dual channel 4 gig kit. so 120 more. First intel system I've built since my Pentium Pro 200. No complaints and it screams.

Also from a usability stand point, the single largest increase in end user performance is a SSD system drive. Go with the OCZ vertex series or the intel based designs. Windows 7 pro 64 bit with NO tweaking and im getting sub 20 second boot times. Applications load instantly.
post #19 of 31
Quote:
Originally Posted by stang View Post
Also Keller, download Prime95 (LinX is better, but I don't use it) and run that for 20 minutes. If none of the flags (threads) goes red, your CPU is stable. If it does, you will have to increase voltage. My ambient temp is probably 23c right now and idling at 43c on my four cores. When the ambient temperature has been as little as 10c, I have seen 28c idle temps, very good. At 3.8ghz, you don't want to have a load temperature of over 70C, 65c would be ideal. With any overclock, you do not want to exceed 85c with a 24/7 overclock, it will degrade your cpu life.

EDIT: Is your i7 a D0 or C0? I imagine it is is a C0. If it is a D0, try reducing the voltage. I run 1.35V at 4.2ghz. Most i7 920s can run at 1.3V at 4ghz, so 1.336V for 3.8ghz is a bit too high for a D0, if it is.
my max temps in prime 95 burn in are in the 50's. I did lap the processor though, that helped ALOT. I live in Houston so we have wickedly hot and humid weather even in the winter. Also have the computer about 2 feet from the ceiling to try and keep as much dog hair out of it as possible.

The screen shot was hardly an idle temp if you look at the loads on the side. watching a movie on the other monitor and generally just messing around. No clue why im still up.

I do admit that i have alot to clean up and stream line, but when i was doing it, im pretty sure i was supposed to be studying. Just never got back around to doing anymore.
post #20 of 31
its a DO, I wasn't going for any speed records when I overclocked it. Just a rock solid stable 24/7 365 overclock.


Its kinda dusty at the moment so my temps are up. Im lazy. Been working on my old machine turning it into a media box for my tv.

And yes, i will start a new thread for every single reply.


But not edits, My Vcore is only 1.240
post #21 of 31
Did any of the flags go red in Prime 95? Also, in Melbourne, Australia our summers can go as low as something like 10c and raining and up to like 46c and sunny. Winters are pretty much the same thing actually
post #22 of 31
To the OP, something like a Nvidia Quadro FX would be ideal for 3D work, as they are a lot better than standard graphics cards. Anyway, here is a system that would make you happy for a long time (excludes gfx card):

i7 920 (OC to 4ghz)
Two OCZ Vertex 30gb RAID 0
2 1TB drives (NOT RAID 0, very high failure rate of RAID 0 with HDD's)
3x2GB RAM @ 1600mhz
Asus P6T
Corsair HX-750 (enough for some future upgrades, but 650 or 550w will be plenty for now)
Prolimatech Megahalems
Windows 7 Ultimate 64 bit

Dunno if you need a sound card or not and how much you want to spend on the graphcis card.
post #23 of 31
Quote:
Originally Posted by stang View Post
2 1TB drives (NOT RAID 0, very high failure rate of RAID 0 with HDD's)
The way you phrased it makes it sound as if RAID 0 will make hard drives die faster.

The failure rate isn't any higher than a single disk, but in the case of RAID 0, the chance of complete data loss is doubled over a single disk, because there is no redundancy and RAID 0 requires more than one hard drive. You can also think of it in another way - the more disks you add to an array, the higher the chance that one of those disks will fail. In the case of RAID 0, if you have five disks, then the chance of one of those five failing and losing all data is five times higher than two disks.

All I'm saying is if you have two 1 TB drives it's best to have them in some kind of redundant setup to save data. If you happen to lose a TB drive, a RAID 1 setup would save all of your data.
post #24 of 31
Well I have heard wayyyy too many stories of people's RAID 0 hdd setup fail. Because once one fails, the other does. RAID 1 is a great idea, but if you had two 1TB hdd's full of data, you would need yet another two 1TB drives. I personally do not see the point in RAID 0 with hdds. Two low capacity SSDs is a much better OS solution and multiple HDDs for data storage is a better idea.
post #25 of 31
I don't understand why both hard drive would fail if just one goes.

Unless both die at the same time the other one will work, but all of the data will be lost.

Honestly, if I manage to accumulate 2 TB of data, I'd want to protect that data at any cost. 1 TB hard drives are getting cheap, unless you want something fast.

I'd only take RAID 0 for performance. It's amazing what 5 SSDs on a RAID controller in RAID 0 can do for read speeds.
post #26 of 31
When set up in RAID 0, BOTH hard drives are 'formed' into one. It is like having ONE 2TB drive. If one dies, it sees the other as dying as well.
post #27 of 31
Thread Starter 
I am defiantely going raid 1 for the 1 tb, as the OP says. I was looking to keep this under $1000. My porspective build is here:

https://spreadsheets.google.com/ccc?...xd0dGOUE&hl=en

The one Stang posted above is about $1400 after rebates, for reference. I know the GPU in my build is not ideal, and that could easily be swapped out for another.

Any thoughts?

Thanks,
Nkk
post #28 of 31
Getting a good 3d modelling computer under $1500 is going to be tricky. Graphics is VERY important here. Depending on the level of 3d you are going to do, a Nvidia Quadro may or not be needed. I cannot view that spreadsheet, as I do not have a google account
post #29 of 31
I do have a Google account and I can't see it.
post #30 of 31
Thread Starter 
Also, just so every one knows, I do not know about taking advantage of multipe cores. I will be using Mathmatica, Maple, and MatLab. I will also use a various other programs that I have not even been introduce to yet. However, I will also be making a lot of my own virtualization programs that will definitely not take advantage of hyper threads or whatever. For that reason, I sort of think the higher clock speed AMD for cheaper is a great optimization for my build.

EDIT: URL above fixed. Here it is again:

https://spreadsheets.google.com/ccc?...xd0dGOUE&hl=en
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