Ideal use for Overclocking - testmy.net resource / tool
Home
Welcome, Guest. Please login or register.
Did you miss your activation email?

  



donations help testmy.net pay for the very high cost to run the site. Any amount is greatly appreciated.
Click to read why...

  spcr
    
News : Have you seen the guides section?  It's an always growing section with tons of cool guides for subjects you might not even know about, check it out... it's a good read azn October 07, 2008, 02:37:17 AM
testmy.net Broadband  |  Main Forum  |  HELP!  |  Overclocking  |  Topic: Ideal use for Overclocking Advanced search
  0 Members and 1 Guest are viewing this topic. « previous next »
Topic Tools Search this topic
 Pages 1 Go Down
Author
Topic: Ideal use for Overclocking  (Read 1351 times)
resi3js
TMN Friend
*
Offline Offline

Gender: Male
Posts: 311



View Profile WWW
« on: November 12, 2007, 01:59:57 PM »
So, here's the situation...

I have an EVGA Nvidia Geforce 8600 GT

In the same line is an EVGA Nvidia Geforce 8600 GT SSC

As you can see, physically they are in no way different from each other. Same fan, same size, probably the same photo. The difference being is that the standard GT uses the stock speeds, while the SSC is preoverclocked. Wouldn't it make sense to buy the standard card, then overclock it to where the SSC is at? I mean EVGA did it, why can't I just to save a few bucks?  cheesy

The possible limiting factors I can think of, but cannot see are the voltages (Doubt they're different as that's based on the PCI-E slot, right?) It seems totally possible, doesn't it?

Another thing is that I have an AMD Athlon 64 X2 4000+. Wouldn't it be possible to overclock that to the same speed as the AMD Athlon 64 X2 5000+?

In overclocking the CPU I definently can see limiting factors, the voltages are the same, but here we have multipliers and a FSB which effects the HT and the memory clock speeds, but of course my memory is corsair with heatsinks so it'll probably handle that pretty well, I can probably manually configure the memory to the EPP standards too!

So, what do you guys think?

Btw, my average temperatures are: Graphics card: 50 C (Full load: 60 C), CPU: 18 C (Full Load: 26 C [That's crazy low, don't you think? Even while Cool'n'Quiet is off too! Smile]) and System: 30 C always.
Logged
resopalrabotnick
News Anchor
TMN Sr. Veteran
*
Offline Offline

Gender: Male
Posts: 4506


Troll by nature


View Profile
« Reply #1 on: November 12, 2007, 02:09:31 PM »
the reason that that will not always work (it could, just saying it does not have to) is that likely the preoverclocked card uses components that were checked out to be able to stand the higher speed by the manufacturer. the reason the "stock" speed is lower than the preoverclocked speed is that the preoverclocking takes a sampling of chips for which the overclocked speed is the equivalent of the "stock" speed for the larger group of chips that are sold running at "stock" speed. since the manufacturer wants to have the biggest yield possible from production he picks a speed, defines that as stock and has a lot of chips that can run it. some of them may be running at the ragged edge just short of frying, for some it may be just right and some could do more. the ones that could do more are the ones that are well and truly overclockable. this is also why some cards will not let you overclock at all without crashing. if the chips on them are already running at their max speed because they happen to be at the low end of the quality curve then overclocking them will put them over the edge.
Logged
Resopalrabotnick Play Freerice

click me! me too!
Give a man a fire and he is warm for a night, but set fire to him and he is warm for the rest of his life.

sig done by S7R1D3R
resi3js
TMN Friend
*
Offline Offline

Gender: Male
Posts: 311



View Profile WWW
« Reply #2 on: November 12, 2007, 02:31:17 PM »
I said that the SSC and the standard EVGA cards are physically identical, 100%. same chips and everything, just one has a preOC'd bios,

btw, how many people get a Hypertransport sync flood error occasionally? This is my second one in 2 weeks of having this PC.  Confused
Logged
resopalrabotnick
News Anchor
TMN Sr. Veteran
*
Offline Offline

Gender: Male
Posts: 4506


Troll by nature


View Profile
« Reply #3 on: November 12, 2007, 02:44:32 PM »
they have the same type of chip. but a given production run produces a certain amount of dud chips. these dud chips are of course discarded (usually for recycling). the chips that do work are not all identical. flaws that are minor enough to not turn it into a dud can still cause it to perform sub-par. to be able to use these sub-par chips the manufacturer sets a "stock" speed that will allow the greatest number of chips to be "harvested" while reaching the performance goals set.
to build preoverclocked cards the chips that are as close to perfect as possible are selected and put together on cards that can then be run at higher speeds.

so while the chips may carry the same designator and be built from the same design the unavoidable variance during a production run makes them quite different.

same goes for cpu's and the like. if intel makes a 2 GHz cpu only a fraction of the run will operate at that speed without problems. those that don't are then labeled as slower clock speeds according to how fast they can go and sold at a lower price than the top chips thereby still making some money.
Logged
Resopalrabotnick Play Freerice

click me! me too!
Give a man a fire and he is warm for a night, but set fire to him and he is warm for the rest of his life.

sig done by S7R1D3R
disturbed
News Anchor
TMN Veteran
*
Offline Offline

Posts: 2097


I am and always will be disturbed.


View Profile
« Reply #4 on: November 12, 2007, 07:54:52 PM »
the thing is that what happens is this:....

intel for example produces a batch of processors that are meant for lets say 3.0GHz - tests them.......some of them might now quite make 3.0GHz - lets say they prove to be working at 2.95GHz.......what are they to do ? throw out that batch that didnt make it ?....no....they simply stamp them as 2.8GHz and sell them for $50 bux cheaper....same thing happens with video cards, etc...

.....its in our advantage to buy those and exploit the way industry functions Smile
Logged
Are you down with the sickness !?

[ http://hackaday.com ]
disturbed
News Anchor
TMN Veteran
*
Offline Offline

Posts: 2097


I am and always will be disturbed.


View Profile
« Reply #5 on: November 12, 2007, 07:56:04 PM »
Quote from: resopalrabotnick on November 12, 2007, 02:44:32 PM
they have the same type of chip. but a given production run produces a certain amount of dud chips. these dud chips are of course discarded (usually for recycling). the chips that do work are not all identical. flaws that are minor enough to not turn it into a dud can still cause it to perform sub-par. to be able to use these sub-par chips the manufacturer sets a "stock" speed that will allow the greatest number of chips to be "harvested" while reaching the performance goals set.
to build preoverclocked cards the chips that are as close to perfect as possible are selected and put together on cards that can then be run at higher speeds.

so while the chips may carry the same designator and be built from the same design the unavoidable variance during a production run makes them quite different.

same goes for cpu's and the like. if intel makes a 2 GHz cpu only a fraction of the run will operate at that speed without problems. those that don't are then labeled as slower clock speeds according to how fast they can go and sold at a lower price than the top chips thereby still making some money.



....i guess i didnt see the reply above - basically the same thing I mean Smile
Logged
Are you down with the sickness !?

[ http://hackaday.com ]
Print  Pages 1 Go Up
testmy.net Broadband  |  Main Forum  |  HELP!  |  Overclocking  |  Topic: Ideal use for Overclocking « previous next »
Jump to:  

 
    
testmy.net's forum is proudly Powered by SMF | SMF © 2006-2007, Simple Machines LLC
Bookmark: Del.icio.us    StumbleUpon
 		  

 

 © 1999-2008 testmy.net - Contact - Legal - Facts & FAQs
Page Loading Stats: This forum Page created in 0.108 seconds with 35 queries.