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Basic overclocking question



 
 
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  #1  
Old July 13th 03, 01:29 PM
Flow
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Default Basic overclocking question

By the time you damaged your card with overclocking
you really don't wanna use it anymore.

"MattB" matt.baranski @ bigpond.com schreef in bericht
...
Hi all,

I picked up an Albatron Ti4200 128mb card today and want to overclock it a
bit. I tweaked the driver level clock frequencies to 270mhz core and

533mhz
memory and the card seems perfectly stable under D3D games with no
artifacts. My question is, will this cause the card harm in the long term
(stock heatsink/fan)? I plan to hang onto this card for at least a year,
does excess overclocking show itself as system instability or is it likely
to just die unexpectedly after being overclocked for a period of time? I
guess basically I want to know how much overclocking will reduce the life

of
the card.

Cheers,
Matt





  #2  
Old July 13th 03, 01:39 PM
torr
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Default

I can o/c my sparkle to 270/540 with no problems have for the last 9 months.
If i go higher on the memory, the memory chips get too hot and i get
artifacts onscreen.
The card will do about 275/550 stable but gets too hot for my liking and i
cant be bothered with extra cooling, not worth the trouble or expense for
the speed increase i wreckon.
For some wierd reason i like too keep the memory twice the speed of gpu
(paranoid maybe). i dont get much improvement with gpu increase only.
Just for reference i get about 11000 in 3dmark 2001 at default settings and
13000 when overclocked to 270/540
Unless theres a fault with your card i wouldnt expect its life expectancy to
shorten by any noticeable amount and unless u get some extreme heat issue
which i wouldnt expect at the setting u r running at.
Excess overclocking of the memory usually shows up as artifacts on the
screen like white dots at random, missing textures or dark
rectangle/triangle objects flashing on the screen.
Excess cpu overclocking for me shows up as games crashing and computer
locking up or games dropping out and going back to the desktop

torr

"MattB" matt.baranski @ bigpond.com wrote in message
...
Hi all,

I picked up an Albatron Ti4200 128mb card today and want to overclock it a
bit. I tweaked the driver level clock frequencies to 270mhz core and

533mhz
memory and the card seems perfectly stable under D3D games with no
artifacts. My question is, will this cause the card harm in the long term
(stock heatsink/fan)? I plan to hang onto this card for at least a year,
does excess overclocking show itself as system instability or is it likely
to just die unexpectedly after being overclocked for a period of time? I
guess basically I want to know how much overclocking will reduce the life

of
the card.

Cheers,
Matt





  #3  
Old July 13th 03, 01:54 PM
Martin Eriksson
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Posts: n/a
Default

"MattB" matt.baranski @ bigpond.com wrote in message
...
Hi all,

I picked up an Albatron Ti4200 128mb card today and want to overclock it a
bit. I tweaked the driver level clock frequencies to 270mhz core and

533mhz
memory and the card seems perfectly stable under D3D games with no
artifacts. My question is, will this cause the card harm in the long term
(stock heatsink/fan)? I plan to hang onto this card for at least a year,
does excess overclocking show itself as system instability or is it likely
to just die unexpectedly after being overclocked for a period of time? I
guess basically I want to know how much overclocking will reduce the life

of
the card.


I have been running at 266/566 for some time now (1 year) on my Ti4200, and
if anything, it's even more overclockable now.

/M


  #4  
Old July 13th 03, 03:31 PM
RJ
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Default

What is the best overclocking program to use? I have a PNY Ti4200 and would
like to speed it up. Can you guys recommend one for a novice? Thanks!
"Martin Eriksson" wrote in message
...
"MattB" matt.baranski @ bigpond.com wrote in message
...
Hi all,

I picked up an Albatron Ti4200 128mb card today and want to overclock it

a
bit. I tweaked the driver level clock frequencies to 270mhz core and

533mhz
memory and the card seems perfectly stable under D3D games with no
artifacts. My question is, will this cause the card harm in the long

term
(stock heatsink/fan)? I plan to hang onto this card for at least a year,
does excess overclocking show itself as system instability or is it

likely
to just die unexpectedly after being overclocked for a period of time? I
guess basically I want to know how much overclocking will reduce the

life
of
the card.


I have been running at 266/566 for some time now (1 year) on my Ti4200,

and
if anything, it's even more overclockable now.

/M




  #5  
Old July 14th 03, 11:33 PM
Martin Eriksson
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Default

"Barney Rubble" wrote in message
...
I guess I must be unlucky, as the BFG TI4200 I have has recently started

to
produce sparkles and random characters. This appears to be a memory

problem,
so I went back to default timings, and guess what.... I still have the
problems. So I guess overclocking can do permanent damage. Temperatures

were
no too bad either. Cannot recall exact timings, but 250/500 seems to

spring
to mind, anyway they were not too aggressive.


250/513 is the default for my Ti4200. I know it is possible to kill your
card by overclocking, but mostly that's because of excessive heat or really
bad components. You could have got bad memory from the start, if it's a
cheapish card.

I have a Leadtek Ti4200. (Dont remember the Leadtek number)

Overclocking *is* always a risk, although far more components have died
because of a bad product from the start (five hard drives, three CD-ROMs,
two motherboards, one CPU, several soundcards, a wee bit of SDRAM etc etc).

/M


  #6  
Old July 17th 03, 08:13 AM
Ron Merts
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Posts: n/a
Default

If it's still under warranty, disavow any overclocking and RMA it for a new
one.

Ron

"Barney Rubble" wrote in message
...
I guess I must be unlucky, as the BFG TI4200 I have has recently started

to
produce sparkles and random characters. This appears to be a memory

problem,
so I went back to default timings, and guess what.... I still have the
problems. So I guess overclocking can do permanent damage. Temperatures

were
no too bad either. Cannot recall exact timings, but 250/500 seems to

spring
to mind, anyway they were not too aggressive.

Hope you have better luck

Barney

"Martin Eriksson" wrote in message
...
"RJ" wrote in message
...
What is the best overclocking program to use? I have a PNY Ti4200 and

would
like to speed it up. Can you guys recommend one for a novice? Thanks!


RivaTuner is the best IMO. It actually uses the overclock abilities in

the
nVidia drivers. It also provides LOTS of options for your nVidia

pleasure.

/M






  #7  
Old July 17th 03, 08:58 PM
John Lewis
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Posts: n/a
Default

On Sun, 13 Jul 2003 21:53:08 +1000, "MattB" matt.baranski @
bigpond.com wrote:

Hi all,

I picked up an Albatron Ti4200 128mb card today and want to overclock it a
bit. I tweaked the driver level clock frequencies to 270mhz core and 533mhz
memory and the card seems perfectly stable under D3D games with no
artifacts. My question is, will this cause the card harm in the long term
(stock heatsink/fan)? I plan to hang onto this card for at least a year,
does excess overclocking show itself as system instability or is it likely
to just die unexpectedly after being overclocked for a period of time? I
guess basically I want to know how much overclocking will reduce the life of
the card.

Cheers,
Matt


Russian roulette if you have no means of monitoring the actual GPU
chip- temperature. Estimated life is ~ divided by 2 for every 10
degreesC above 80 degreesC CHIP-temperature. Damage is irreversible.
You may or may not see artifacts before irreversible damage.
Silicon slows down significantly with increasing heat, so it may slow
enough to see artifacts before transistors or silicon-vias go POP or
it may not............

Just make sure that you have enough reserve cash in the bank
for a replacement card.

The video card memory is far less likely to go POP unless it is has
poor local cooling or is grossly overclocked. Or shares the same
physical heat-sink as the GPU plus a poor heat-sink design allowing
low thermal resistance between GPU and memory.

FYI:-

Unlike the CPU chip-temp monitoring on modern motherboards, most
video cards have no GPU chip- temperature monitors, although the
design and thermal-stress rules are exactly the same as for CPUs. The
latest video cards ATi9700, 9800, FX5800, FX5900 cost more than most
CPUs and disspate as much power as a 2.6GHz P4. Out of these only
the FX5900 has built-in user-accessible chip-temperature monitoring.

John Lewis






  #8  
Old July 18th 03, 12:26 AM
Chimera
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Posts: n/a
Default

snip

Unlike the CPU chip-temp monitoring on modern motherboards, most
video cards have no GPU chip- temperature monitors, although the
design and thermal-stress rules are exactly the same as for CPUs. The
latest video cards ATi9700, 9800, FX5800, FX5900 cost more than most
CPUs and disspate as much power as a 2.6GHz P4. Out of these only
the FX5900 has built-in user-accessible chip-temperature monitoring.

Seems to me the FX5900 needs it! The FX chips are the AMD T-Birds of the
GPU industry!



  #9  
Old July 18th 03, 06:50 AM
John Lewis
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Default

On Thu, 17 Jul 2003 23:26:49 GMT, "Chimera" wrote:

snip

Unlike the CPU chip-temp monitoring on modern motherboards, most
video cards have no GPU chip- temperature monitors, although the
design and thermal-stress rules are exactly the same as for CPUs. The
latest video cards ATi9700, 9800, FX5800, FX5900 cost more than most
CPUs and disspate as much power as a 2.6GHz P4. Out of these only
the FX5900 has built-in user-accessible chip-temperature monitoring.

Seems to me the FX5900 needs it! The FX chips are the AMD T-Birds of the
GPU industry!



And the DATA to back this statement up ?

You may be confusing the very poor cooling solution on the FX5800
with the actual chip temperature of the GPU.

Neither nVidia NOR Ati publicly publish any diissipation figures
for their GPUs.

The process, transistor-count and clock-speed are the key determining
issues. There is no silver bullet. The FX5900 15% higher transistor
count and sligfhtly-higher clock speed, but 0.13u process (and lower
core Vdd ) instead of 0.15u on the 9800 results in about the same
power-dissipation.

Come back when you have real data to back up your argument.

Go install a temp-monitor on the 9800 GPU. You may get
a very interesting surprise/shock.........

As it is you may be blowing hot-air..............

John Lewis




 




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