Radeon X800 Non-Pro/X800 XL/X850 Voltmods

[Mussels]

:O nice work man

i often screw up pencil mods, so thats pretty good work there.

nice pics tho, they make it seem easier to understand.

 

[Urlyin]

Anyone tryed with PowerColor x850XT / XT PE...

(x850XT Im using)

And...

VGPU / IGPU mods is the only I dare making,.. I use very poor airflow in my tower and keeps most of it aircooled... I use aluminium heatsinks for mem on gfx... and watercooling on CPU / GPU...

I'd like to go for the 1,6 - 1,65v instead of the stock ~ 1,4v...

Im able to run a speed of 605 mhz core without artifacts but freezes after a while under load... - I guess its a due to my PSU but... I'll change PSU soon...
Anyways... Im able to clock to 625mhz core but with lots of artifacts... - Daily usage the corespeed is 588mhz..

Anybody's able to help me out with the measuring points? - If pencil mod is possible...

Best regards
12k

Look at the first page of this thread ..

 

[Urlyin]

Nice Grave ... where'd you get those VRs

 

[funkflix]

Thx.

From http://www1.conrad.de/scripts/wgate...te=pcat_area&p_load_desc=X&p_load_area=241630

 

[12k^]

#153

Done that... But my gfx looks a bit different... :\

 

[Tom2110]

my problem is the same! i do the vGPU mod and the 1.41V isn´t going up!

I have the right points with the pencil!
I have a x850xt PCIe

who can help me?

 

[Urlyin]

#153

Done that... But my gfx looks a bit different... :\

Have a pic?

 

[Urlyin]

my problem is the same! i do the vGPU mod and the 1.41V isn´t going up!

I have the right points with the pencil!
I have a x850xt PCIe

who can help me?

Tom it's an issue with the new design that ATI has come out with and not needing the resistor... which results in the pencil not being able to lower the ohms... I have something that Daysleeper will be testing out to see if it's able to lower the ohms of the two solder spots .... I'll let everyone know if it works ...

 

[12k^]

Got a mate to upload it, as well he made some guesses where it could be....

http://www.hardware-test.dk/oc/billedbrowser.asp?id=23219&pic=4

Can you confirm?

Best regards 12k

 

[Urlyin]

Got a mate to upload it, as well he made some guesses where it could be....

http://www.hardware-test.dk/oc/billedbrowser.asp?id=23219&pic=4

Can you confirm?

Best regards 12k

12 ... I don't see the diff? just the color is different the mod is in the same spot ... you lost me

 

[12k]

The "thing" just right of the C1691 is missing.. :\

Does that do any difference?

Btw... How much vgpu should I give the core - Is 1,65v safe?

 

[Urlyin]

The "thing" just right of the C1691 is missing.. :\

Does that do any difference?

Btw... How much vgpu should I give the core - Is 1,65v safe?

The vmod would be the same for the VGPU ... does your board have a resistor where W1zz shows the resistor solder points? are you doing the VR ? Depending upon the cooling you're using would determine if 1.65v would be safe ...

 

[fire113]

The "thing" just right of the C1691 is missing.. :\

Does that do any difference?

Btw... How much vgpu should I give the core - Is 1,65v safe?

hi

I miss the "thing" too but I can do all the Vmods
I went up to 1,75 Volt on GPU an the Card is sill alive , but now I´m using 1.63Volt.

cu fire113.
http://service.futuremark.com/compare?2k3=3867855

 

[12k]

Hmm, soldering points ?
Measuring points aye?

Aint it possible with pencil?

 

[babyelf]

Set your meter to DCV 20 V before placing the black lead of your meter on the screw holding in the video card, this is ground..

erm... sorry.. this is a noob question.. but where does this refer to?

i'm choosing between getting a x800xl or a x850xt now.. if i get x800xl i'm closer to watercooling my rig... if i get the x850xt then i'm further from watercooling my rig...

do we measure and pencil when the system is up and running?

 

[Urlyin]

Set your meter to DCV 20 V before placing the black lead of your meter on the screw holding in the video card, this is ground..

erm... sorry.. this is a noob question.. but where does this refer to?

i'm choosing between getting a x800xl or a x850xt now.. if i get x800xl i'm closer to watercooling my rig... if i get the x850xt then i'm further from watercooling my rig...

do we measure and pencil when the system is up and running?

Read this article here ... to get a understanding of what to do... the x800/ x800xl vmods are based on that article

 

[Urlyin]

Hmm, soldering points ?
Measuring points aye?

Aint it possible with pencil?

Some members are having problems getting the pencil to lower the ohms on certain boards... you may or may not have the same issue ... read the same article I pointed Babyelf to and then go to the first page of this thread for the vmod locations for your card ...

 

[babyelf]

Hi

I read it ... just that i don't know where is ground....

can you show me where to have the black from the DMM touch?

 

[Urlyin]

Hi

I read it ... just that i don't know where is ground....

can you show me where to have the black from the DMM touch?

It states in the article ...

Set your meter to DCV 20 V before placing the black lead of your meter on the screw holding in the video card, this is ground.

Do not pencil the card while it is in the slot ....

 

[Tijgert]

To narrow down the succes rate and the work I have to do, does anybody here have any reports on the mod on a Club3D X800XL with 2ns ram?
Or perhaps what the stock voltages/resistances are and perhaps to what values they were altered and what the result was.

(best case scenario, I just pencil in the resistance and presto, 5 minute mod is done without any trial and screwup)

Also; what exactly is 'electrical tape'? Can't I just use ye olde stickytape? Must it have some special properties?

 

[Mussels]

if you have no resistor, pencil mods dont work. urylin is working on an alternative.

you cant use someone elses numbers, each card is different. and you need to measure how much you changed anyway, duh.

electrical tape: i jus tused duct tape. you need something that wont melt if your card gets hot

 

[Tijgert]

If the pencil mod wouldn't work... the resistor hard mod would, right?

 

[Urlyin]

If the pencil mod wouldn't work... the resistor hard mod would, right?

The hard mod works ...

 

[Urlyin]

I'm looking for a volunteer to run some test on their x800 or x800xl without the resistor ... I'll walk you through doing the VGPU vmod to verify a different way of doing the mod... it doesn't involve a VR or soldering... I've tested it on a X800XT AGP but I don't have access to a X800XL or X800 PCI-E card ... just send me a PM if you're interested ...

 

[12k]

One final noob question from me.... What is electrical tape??...

Got red PCB layout,,,, :\ - And where can i buy it ?