Unlocking the A400 TDH

thedemon13666 · 2 Apr 2006 at 11:51

Can the A400 TDH be unlocked, i tried using rivatuner and i got some very nice artifacts, could this be resolved my lowering the memory clock, or shouldnt i need to?

Vegeta · 2 Apr 2006 at 11:52

nope they're broken - no point lowering clocks anyways to get the extra pipes - you're going to get better performance with a much higher clock.

thedemon13666 · 2 Apr 2006 at 11:54

are all the A400s pipes broken or is it just my bad luck?

Vegeta · 2 Apr 2006 at 11:59

your bad luck

- its no big deal if you get nice clocks - try unlocking the vertex shader and 4 pipelines seprately - one might work - mine unlocked to 12/6 when I had it rather that normal 12/5.

thedemon13666 · 2 Apr 2006 at 12:14

i used rivatuner and there is only 1 pixel unit and 1 vertex unit that was masked, ill try just unlocking the vertex then just the pixel unitm ill let you know how it goes

thedemon13666 · 2 Apr 2006 at 12:22

well everything seems ok with the vertex unit unlocked, but im going to try a game and see if i get any nice sparklies littering my screen

Its sods law so I know ill probably get them

Vegeta · 2 Apr 2006 at 12:23

it only comes down as one, but once you unlock it, it unlocks 4.

thedemon13666 · 2 Apr 2006 at 12:24

ahhhhh, what do the pipes and vertex units actually do?

Vegeta · 2 Apr 2006 at 12:36

just have the ability to transfer more data I think, I mean image shooting water thorugh 5 holes identical size holes, wouldnt it be faster shooting the water through 6 identical holes?

thedemon13666 · 2 Apr 2006 at 12:51

ahhh seems obvious really, well the vertex unit works fine, tried it on oblivion, the clocks seem to have lowered dramatically, BUT iseem to get a higher frame rate than i would without it, my clocks are 245/540 but the performance seems to have improved quite an amount

still going to buy a new card though

Vegeta · 2 Apr 2006 at 13:01

Sorry stupid question but the a400tdh is the Leadtek 6800 non ultra right? because those clock speeds seem very low, lower than stock.

I used to get it unlocked at 12/6 at 435 core and 810 memory, with the bios voltage at 1.4v on volt however.

thedemon13666 · 2 Apr 2006 at 13:02

yes it is, without the vertex being unlocked i can get a lot higher clock speeds, but as soon as i unlock it, rivatuner takes the threshold WAY down, seems to be running way smoother though

Vegeta · 2 Apr 2006 at 13:05

mate use 3dark to check ow it performs, unlocking vertex and pixel shaders only give a slight increase - certainly not worth losing hundreds in core speed as that will give a massive performanc decrease - I dont think your pixel shader and vertex shaders unlock properly if it takes such a massive hit in frequencies.

thedemon13666 · 2 Apr 2006 at 13:06

ive never used 3dark

where do i get it and how to i use it?

Vegeta · 2 Apr 2006 at 13:07

http://www.futuremark.com/download/

download 2005 version, run it and tell me what score you get, also tell me you system spec.

thedemon13666 · 2 Apr 2006 at 13:13

its downloading now, be about 20-25 minutes

thedemon13666 · 2 Apr 2006 at 14:05

ive got a AMD 2800 barton
leadtek geforce 6800
1 gig of ram

my score was 839

Nikolic · 2 Apr 2006 at 14:13

thedemon13666 said:
ive got a AMD 2800 barton
leadtek geforce 6800
1 gig of ram

my score was 839

That score is seriously not right.

I've got a Leadtek 6800NU clocked at the speeds in my sig - you should be getting around and over 4k.

thedemon13666 · 2 Apr 2006 at 14:17

could it be down to the drivers im using?

thedemon13666 · 2 Apr 2006 at 14:45

im using the latest nvidia driver, could it be down to that?