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Integrated RAID on "NEW" System

Hi All,
I am building a new system for my GNS3 1.2.3 platform (running 20 - 30 devices)and have decided to use new components.
Win7 Pro. 64
ASROCK N68-GS4 FX Socket AM3+  Mobo.
2 x Western Digital Raptor 160GB SATA/300 10,000RPM 16MB HDD's (RAID 0)
AMD FD8320FRHKBOX FX-8320 FX-Series 8-Core Black Edition
Kingston HyperX FURY 16GB Kit (2x8GB) 1866MHz DDR3 CL10 DIMM

The motherboard offers an integrated RAID feature and I'm wondering what the consensus is these days on integrated RAID controllers.  I am after performance and minimal cost so I'm going with RAID 0.  The only thing running will be GNS3.  Windows Search Indexing and most of the services that I don't require will also be turned off, no antivirus, etc.  I've no concerns with the associated risks of RAID 0 on this system.
According to articles online the CPU can be overclocked if kept cool enough to run at 5Ghz.  Essentially I'm trying to compensate for the RAID driver that manages the integrated RAID, but most of the articles that I've read on this topic are 4+ years old. Perhaps the modern day integrated RAID controller's, drivers are more efficient, I would tend to think so.

Does anyone see a concern with the CPU getting taxed by the integrated RAID controller?

3 Solutions
Just let your system run on "normal" levels first. If you like the speed  already why all the effort for cooling/overclocking (possibly shorten the life of the computer)?
While it's still the CPU is used for the RAID on any embedded solution, your CPU seems fast enough to be able to cope with it (that's besides that RAID0 and RAID1 are the most simple raid computations).
i'm not a raid expert, but i have seen many posts on EE that say not to use on board raid - they also call it fake raid
better use the windows software raid
Gerald ConnollyCommented:
Firstly, are you sure you want to do RAID-0, if one of the disks fails you have lost ALL of your data, RAID-1 would be better.
Secondly, as nobus's said it's quite likely that this MB has a "Fake" RAID controller which will almost certainly cause you grief big time at some point. Better to go with software RAID-1 using the built in software in Windows
rotarypwrAuthor Commented:
I think I'm just going to let the system run a while as is with the performance rated at 7.3 .  Perhaps down the road I'll try out the Win7 64bit solution and do a comparison and post the results.  I switch the GPU out with a EVGA GeForce GTX 960 Super Clocked 2GB GDDR5 128bit, PCI-E 3.0 that I traded some parts for with a friend and I had 2 ASA's, 21-7200 Cisco Routers and various L2 switches running and she still had plenty.  Now I'm going to try and add a Juniper router to GNS3 using Virtual Box and see how it runs with that and the aforementioned.  I am currently using the stock CPU cooler and have a Cooler Master Hyper TX3(RR-910-HTX3-G1) if things get warm.  I have left the box completely open.  Plan on just hitting it with a can of air now and then to keep out the dust bunnies.

Thanks All.
one problem with the onboard raid is - if it gets bad - you have no other way for recovery than having the same mobo
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