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Bottleneck Issues

Post Date: 2008-04-02
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Slicer View Drop Down
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Posts: 78 		  Quote Slicer Quote  Post ReplyReply bullet Topic: Bottleneck Issues
    Posted: 02 Apr 2008 at 2:13pm
I'm working on my config and have a question regarding the whole "math" issue of the Ram & CPU bottleneck issues, and being a semi-noob at this stuff figured I would ask the pros.
 
Is there any compatability issues or bottleneck issues I would see with:
 
QX9450 2.66 GHz on a 780i board OC'd with Frostbite Liquid Cooling on CPU
 
& the 1066 mhz Corsair Dominator DHX Ram 2G's + OC'ing
 
Also if I expect to be running the 32-bit Vista OS, what increased performance benefit for gaming would I get with 4G's vs 2G's of the above RAM?
 
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Edited by Slicer - 02 Apr 2008 at 2:14pm
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Sharariebrum View Drop Down
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Posts: 74 		  Quote Sharariebrum Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 3:22pm

I am not as PRO'ish as others on the here but as far as my Knowledge goes. 

You shouldnt have but limited bottlenecking. Depends on how many video editing web page surfing--you know multiple programs running at once with 2g ram.  If you went with the 4 gig you would only see a possible 1g increase But 750meg is most likely what you will see.
 
You can call them up at the time of your orderplacement M-F and see if you can get a special request of a 3gig Ram pricing for your build.  DS guys are very helpfull.  Might take longer for your build might not but never hurts to call them.
 
Or you can get the 2g from them and have them include the voltage amd mem timings so you can do it with an extra 1g of the same ram from newegg or other site later. if your comp doesnt run to your liking.
 
But again as I see it you should be fine with that set up just not if your planning on doing many multitasking apps at once.
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Posts: 1150 		  Quote Bill the Cat Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 3:24pm
I've never gotten a clean picture of this situaton, but I belived that actually 800 MHz memory is fast enough for this system. This 800 MHz RAM runs 1:1 with a 1600 MHz FSB. 
 
You will get virtually no benefit from 4 Gig, compared to 2 Gig, of RAM with a 32-bit OS.
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Posts: 1826 		  Quote EdH63 Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 3:49pm
You probably would see a bit of improvement on a 32 bit OS with 4 gigs if you are using RAM dependent programs.  In other words, you would utilize some of the difference of those 4 gigs when having multiple apps open that are causing a drain on a standard 2 gigs.  So, eventhough you won't be able to utilize all 4 gigs on a 32 bit OS, you can still utilize some of it beyond 2 gigs if you're using resource hungry apps. 
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  Quote Justin.Kerr Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 4:13pm
Originally posted by Bill the Cat

I've never gotten a clean picture of this situaton, but I belived that actually 800 MHz memory is fast enough for this system. This 800 MHz RAM runs 1:1 with a 1600 MHz FSB. 
 
You will get virtually no benefit from 4 Gig, compared to 2 Gig, of RAM with a 32-bit OS.

With a locked, multiplier of 8, the FSB would need to be 400-450 to get a nice OC, which would be pushing the 800 mhZ ram. lol
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Posts: 20 		  Quote GentleKiller Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 4:42pm
there is a problem with 32bit vista not fully recognizing 4gb of ram, it will only recognize about 2.7 to 3.1 gb of RAM
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Posts: 78 		  Quote Slicer Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 4:46pm

I would say it's common to have multiple programs up, for one, you have all those processes running in the background on the OS + a MMORPG or RTS Shooter along with a VOIP like TS or Ventrilo, or I'm running 3 browsers + Ventrilo + Itunes is my typical usage.

I guess OC'ing the CPU and OC'ing the RAM were my concerns and whether the RAM was too much or too little, maybe having more than 2 would be better while having 4 might be too much, then again I guess it never really hurts to just have 4 as I wouldnt see any need for more I'm guessing based on the 32bit OS.
 
Figured the 1066 was a little faster than the 800 and would give some improved performance along with the OC so was weighing out the extra 100 bucks for another couple gigs of the RAM.
 
Thanks guys, that should settle it for me.
 


Edited by Slicer - 02 Apr 2008 at 4:46pm
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EdH63 View Drop Down
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Posts: 1826 		  Quote EdH63 Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 5:13pm
I'm going to pop in another couple of sticks in my system becauae I know I'll be upgrading to a 64 bit OS here soon and may probably stuff another GPU in also. 

I was playing through FFOW the other day and my game froze.  All core temps were within limits and my GPU temps were fine  When I checked to see what the error was, it said that I had exceeded my memory.  Having 4 gigs of RAM would solve that, not too mention shutting down a few background programs didn't hurt either.  But, Vista is a resource hog and more memory can solve that issue.


Edited by EdH63 - 02 Apr 2008 at 5:13pm
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SunfighterLC View Drop Down
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Posts: 1527 		  Quote SunfighterLC Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 5:27pm
Im still sort of stuck deciding if i should get a 64 bit now and just get 2 GB with it, and upgrade a couple weeks down the road and maybe deal with any memory shortage issues that will cause, or just wait the extra couple weeks and build up the cash where i can just get the 4+GB of ram straight from DS....
 
But i want my new computer ASAP!!! AHHH! its killing me..haha. Budgets suck. playing games on 27 inch monitor while still using a 6800 really sucks!
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Posts: 1826 		  Quote EdH63 Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 7:32pm
Originally posted by SunfighterLC

Im still sort of stuck deciding if i should get a 64 bit now and just get 2 GB with it, and upgrade a couple weeks down the road and maybe deal with any memory shortage issues that will cause, or just wait the extra couple weeks and build up the cash where i can just get the 4+GB of ram straight from DS....
 
But i want my new computer ASAP!!! AHHH! its killing me..haha. Budgets suck. playing games on 27 inch monitor while still using a 6800 really sucks!


Yeah, but just think about the digital orgasm you're going to have when you get that new rig.   I know Kelly would want to be a fly on the wall when you open that box with your opposing thumbs!

Thumbs%20Up 
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Posts: 1527 		  Quote SunfighterLC Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 7:39pm
Nah, im leaning more towards, ill buy it, UPS will, just like my 400 dollar printer, leave it on my front porch without a signature. Which then it will either:
 
A) be stolen
B) That will be the day it rains
 
Or worse, they will deliver it to the house up the street with the SAME address. Well they are slightly different, the numbers are the same, but the street names are slightly different Red Bud vs Red Bush. Ive gotten stuff from that place so many times i cant remember, yet they never seem to have any of my stuff, though i assume its cause they never bother to take the time that i do to return that stuff.
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Posts: 1826 		  Quote EdH63 Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 7:44pm
I kinda liked the "Kelly's thumbs" scenario. 

Sad thing, I did buy a $900.00 monitor from Dell years ago and UPS did deliver it to my house and left it on the front porch without a signature.  I was not a happy camper.
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Posts: 1150 		  Quote Bill the Cat Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 8:35pm
Originally posted by Justin.Kerr

With a locked, multiplier of 8, the FSB would need to be 400-450 to get a nice OC, which would be pushing the 800 mhZ ram. lol
 
Wow, the Q9450 is limited to 8X; not 9X? Just goes to show you can learn something new every day if you start out stupid enough. Even so, 800 MHz RAM will run 1:1 on a 1600 MHz FSB, which would yield a 3.2 GHz CPU speed with an 8X multiplier. If it were possible to push the CPU harder than that, then the 800 MHz RAM would start to be a limiting factor.
 
Will the 780i FSB run reliably at 450+ MHz? I sure don't know. Tyler?
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Posts: 2220 		  Quote skyR Quote  Post ReplyReply bullet Posted: 02 Apr 2008 at 8:42pm
I believe the 780i caps at around 470FSB.

And yes the 45nm cpus can easily hit that on air =x
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Posts: 0 		  Quote Tyler Lowe Quote  Post ReplyReply bullet Posted: 03 Apr 2008 at 12:13am
470 to 480ish is also about the top that I have seen from a 780i, at least so far.
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  Quote Slicer Quote  Post ReplyReply bullet Posted: 03 Apr 2008 at 12:39am
Originally posted by skyR

I believe the 780i caps at around 470FSB.

And yes the 45nm cpus can easily hit that on air =x
 
Does this mean the CPU on Liquid Frostbite cooling can easily go above 3.2?  Any experience from DS on OC'ing this new chip on liquid cooling?
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