X700pro volt mods?

**FireDragon** · 03-02-2005, 08:20 AM

i need some volt mods for an x700pro (saphire, toxic (ed))

**persivore** · 03-02-2005, 10:33 AM

Can you post some pictures of the front and back of the card please.

**FireDragon** · 03-04-2005, 08:16 AM

Srry no digi came...i will look online to see if i can't find any...i think that is the refernce board/design though

**Snowman89** · 03-04-2005, 09:25 AM

i can fix pic for you later, but i got a connect3d and the pics wont be high res but i can fix a close look to a area if wanted
dont laugh at the tiny stock cooler

**persivore** · 03-04-2005, 10:21 AM

Can you tell me what is written on the chips I have marked please.
http://www.xtremesystems.org/forums/...id=25875&stc=1

Also, can someone try to get some pictures of the back of the card as well please.

**Snowman89** · 03-04-2005, 01:13 PM

Originally Posted by persivore

Can you tell me what is written on the chips I have marked please.
http://www.xtremesystems.org/forums/...id=25875&stc=1

Also, can someone try to get some pictures of the back of the card as well please.

sure can fix a pic of the backside and fix the chips later but now im of for some gaming

got the card earlyier today and havent had any time to game

**gocchin** · 03-05-2005, 06:48 AM

Originally Posted by persivore

Can you tell me what is written on the chips I have marked please.
http://www.xtremesystems.org/forums/...id=25875&stc=1

Also, can someone try to get some pictures of the back of the card as well please.

bottom left chip:
RT1973A
CL55M90M

top left chips:
D39AT (there's an italic "f" in front of this line but I think it's just a logo?)
FDS
7096N3

top right chips:
4804
0312

**docah** · 03-05-2005, 07:53 AM

Here's some detailed shots of the card. x700 Pro
Please don't download this file unles you need the pictures to help with the mod... you will kill my connection as the file is 20mb.

**Marquzz** · 03-05-2005, 07:59 AM

Here's some measure points for a Sapphire x700pro 128MB

And here's a pic of (where I think) the chip controling vgpu and the surrounding area. Tech-gurus be welcome to take a look

(click image for bigger)

**persivore** · 03-05-2005, 08:37 AM

Originally Posted by gocchin

bottom left chip:
RT1973A
CL55M90M

top left chips:
D39AT (there's an italic "f" in front of this line but I think it's just a logo?)
FDS
7096N3

top right chips:
4804
0312

Thanks. It looks like the chips on the top left and right are the MOSFETs for the regulators, but I can't find any information on the RT1973A chip, but I don't think its important.

Originally Posted by docah

Here's some detailed shots of the card. x700 Pro
Please don't download this file unles you need the pictures to help with the mod... you will kill my connection as the file is 20mb.

Thanks for the pictures. It looks like the card is using 2 ISL6522 chips for the regulators. Can someone measure the voltages on pins 5 and 8 as marked in the picture, so that I can find out which chip is controlling which voltage.

http://www.drunken-student.co.uk/tom...20vc%20005.jpg

**crotale** · 03-05-2005, 09:51 AM

I also think the FB/Pin5 is interresting for this mod.

It is also possible that one is for VDD and the other for VDDQ.

**CaTalyst.X** · 03-05-2005, 11:44 PM

The one closest to the front is vddr and should be ok witha 20K vr FB to GND., the one next to it is for VDDQ and should be fine w/ a 50K VR FB to GND. I couldnt find anything on it just yet but the SP61 32CU chip is definately controlling vgpu.

-CaT

**CaTalyst.X** · 03-05-2005, 11:53 PM

ALSO btw persivore, none of the vgpu, vddq, or vmem is going to be on the front of the card.

**gocchin** · 03-06-2005, 08:15 AM

So for those with no soldering skills, where do we pencil?

**Snowman89** · 03-06-2005, 09:09 AM

could someone pls post a picture with all the places to solder on to vgpu and vdd, whats vddq?

**persivore** · 03-06-2005, 10:36 AM

The Vgpu is controlled by the SP61 32CU, which is a sipex chip, the SP6132.
http://www.sipex.com/products/pdf/sp6132.pdf
Pin 4 of this chip is the feedback pin, so this, or something connected to this pin will be the mod point.

**CaTalyst.X** · 03-06-2005, 12:22 PM

Thanks alot for the info on that SP61 chip persivore. Anybody want to be the guini pig on this one? NOTE: Check resistance from pin 4 to GND before soldering. Then solder the 20K in circuit and measure it again. If its lower youre going to need to use a larger VR, if its higher then just leave it at 20K.

http://img120.exs.cx/img120/3400/vgpuarea8py.jpg

-CaT

**CaTalyst.X** · 03-06-2005, 02:31 PM

This is the vddr mod. Again check resistance from pin 5 to GND, solder the 20K in circuit, and then check it again to make sure its the correct resistance which i belive it is. Use the checkpoints Marquzz posted above to make sure the mod is working and to check the voltage.

http://img108.exs.cx/img108/4456/closeupvc0081of.jpg

-CaT

**crotale** · 03-06-2005, 03:35 PM

Nice work CaTalyst.X, but don't you think we should advice the first person who would like to try it to start with 100k VRs instead?
It's better to be on the safe side. Either way, be sure to have 20 turn VRs and turn them slowly and check voltages carefully.

**CaTalyst.X** · 03-06-2005, 03:47 PM

Yeah maybe for the vgpu, but thats why i really stressed checking the resistance. For the vddr, 20K should be more than enough. But like i said, check the resistance just to be sure, takes 10 seconds max and could save your card

-CaT

**FireDragon** · 03-06-2005, 05:12 PM

HA HA HA this is great i just got linked to my own thread here from ocforums.com....i will check voltages when i find my DMM...it has kinda walked off on me agian. So i will have those voltages for you.

**CaTalyst.X** · 03-06-2005, 06:18 PM

You dont really need to do the votlages

I linked u to this thread at OCF

Just check the 2 pics i posted above.

-CaT

**FireDragon** · 03-07-2005, 08:52 AM

Yeah i know lol that was great thnxs REALY looking into this for me...to tell you the truth i forgot ALL about this thread.

**FireDragon** · 03-07-2005, 09:01 AM

O yeah i will be the guni pig BTW...i should have to mod done by the end of the week...i need some better cooling for the core and ram though...i am going to get a stock p4 or AMD hs then cut up the toxic hs for ram sinks that should work allright to cool it until i get my wb and chiller here...

**Snowman89** · 03-07-2005, 10:01 AM

yeah please post pictures of it when ready, im thinking of trying to vmodd it myself later on

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