Geforce 6800 OC Values

[sammael]

Hi Guys,

I am new to this forum but have been messing about with PC's for years.

I have tons of software on my HD and have been software OC'ing my system for a while.

The questions I need answering and so far have drawn a blank on are as follows and I would appreciate some help from one of the pro guys who has been OC'ing stuff for a while and knows his sh*t.

Firstly I can OC my Geforce 6800 to 434/840 beforce it starts to artifact and run it at 425/800 without any graphical glitches at all.This is with stock cooling and 1 card exhaust fan 2 slots down from it.
Ambient temps range from 33 to 46 degrees max, and an average of 49 degrees at idle for the core, up to a max of about 82 degrees when running ati tool 3D for a while, to give it some hammering.

So here goes! Firstly why is the hynix 2.8 memory which is rated by them as 700mhz underclocked to 600mhz initially? Is there a voltage reason etc that I should be aware of? So is it safe to run it at 700 mhz as technically this isnt even overclocking it?

And finally what is a typical temp for a geforce 6800 stock cooled card? No site has this info, even guru3D.com doesn't give temp specifics. Is 82 C perfectly fine seen as the cut off in the control panel says 125 C for cutout. And what is a standard idle temp for this card at a reasonable room temperature, no answers from eskimos saying -25 C please.

I tend to think I am pretty handy with a PC but this info has me stumped. I could be running my card into the ground, or be perfectly fine and have no way of knowing.

Many thanks
Sammael

[TRow]

Who is the Manufacturer of your v.card?

How long ago did you purchase it? With regards to the 600~700mhz difference in chip speed, this also has to do with the stability of the card itself, and this gives users some leniency for systems that aren't properly cooled, or if they intend to overclock, etc...Running faster memory requires beefier power reg/caps, also requires chips that have been binned to pass certain testing. In post-production state, like the 6800 series, it would not surprise me to see unimpressed overclocks, as most 3rd party manufacters(and 1st at this part of lifecycle)vendors just care about profit/sales and not high high there product clocks out of the box.

[sammael]

Hiya,

Thanks for the info.Its about 5 months old and is the Geforce 6800 that comes with the XPS 600. I believe its evga although all the markings and ID via rivatuner etc says nvidia only.

$0000000000 Description : NVIDIA GeForce 6800
$0000000001 Vendor ID : 10de (NVIDIA)
$0000000002 Device ID : 00c1
$0000000003 Location : bus 1, device 0, function 0
$0000000004 Bus type : PCIE
$000000000f PCIE link width : 16x supported, 16x selected
$0000000009 Base address 0 : dd000000 (memory range)
$000000000a Base address 1 : c0000000 (memory range)
$000000000b Base address 2 : none
$000000000c Base address 3 : de000000 (memory range)
$000000000d Base address 4 : none
$000000000e Base address 5 : none
$ffffffffff ----------------------------------------------------------------
$ffffffffff NVIDIA specific display adapter information
$ffffffffff ----------------------------------------------------------------
$0100000000 Graphics core : NV42 revision A1 (12x1,5vp)
$0100000001 Hardwired ID : 00c0 (ROM strapped to 00c1)
$0100000002 Memory bus : 0-bit
$0100000003 Memory type : DDR (RAM configuration 01)
$0100000004 Memory amount : 262144KB
$0100000005 Core clock : 324.000MHz
$0100000006 Memory clock : 299.250MHz (598.500MHz effective)
$0100000007 Reference clock : 27.000MHz