6800GT: Coolbits shows default Memory clock at 2.0GHZ

I guess the subject pretty much says it all: the true default
Memory clock speed of my AGP 6800GT should be at
1.0GHz (or there abouts), but coolbits tells me it's at twice
that speed. I'm running XP on a half-decent rig, with
Forceware version 93.71.

I've had problems with overclocking the GPU lately, from
350MHz to 390MHz (it was unstable above that level).
These days I either get a BSOD and immediate reboot,
or some other ill-effect (loss of PS2 mouse control in-game)
when OC'd to 390MHz...

....I get the impression it may be a PSU issue, but I'd like to
discount the incorrect default Memory clock speeds first.
(The reason I feel it's the PSU is because, since adding a
second hard disk - a SATA drive - the existing PATA will
sometimes power off and on at seemingly random periods.)

Anyone have any thoughts? Thanks y'all.

Geof Lange wrote:
> I guess the subject pretty much says it all: the true default
> Memory clock speed of my AGP 6800GT should be at
> 1.0GHz (or there abouts), but coolbits tells me it's at twice
> that speed. I'm running XP on a half-decent rig, with
> Forceware version 93.71.

Known bug, RAM being misreported, treat it as (RAM speed x 2) x 2.
>
> I've had problems with overclocking the GPU lately, from
> 350MHz to 390MHz (it was unstable above that level).
> These days I either get a BSOD and immediate reboot,
> or some other ill-effect (loss of PS2 mouse control in-game)
> when OC'd to 390MHz...

390MHz is realistic for an OC of a 6800GT, Of course higher is possible,
but it is rare and not recommended to go higher than 10% over stock
speeds, unless you don't care if it just all and dies randomly.

> ...I get the impression it may be a PSU issue, but I'd like to
> discount the incorrect default Memory clock speeds first.
> (The reason I feel it's the PSU is because, since adding a
> second hard disk - a SATA drive - the existing PATA will
> sometimes power off and on at seemingly random periods.)
>
> Anyone have any thoughts? Thanks y'all.
>
>

If you think it's the PSU, I'd investigate that further, since the RAM
is actually operating at it's rated speed.

There are online "How much power am I using/do I need based on my
configuration" sites that you can plug in your equipment and get a
reasonable PSU requirement from it...here's a fun one...

http://extreme.outervision.com/psucalculator.jsp