How-to: Pencil mod your HD 3870!

eidairaman1 · Apr 6, 2008

http://en.wikipedia.org/wiki/Resistor

btw good reference for SMT resistors, for relative values

DanishDevil · Apr 6, 2008

eidairaman1 said:
that or use a conductive pen, but prewarning you could make that permanent and not beable to restore it, sometimes i think its better to have a variable resistor so you can control the voltage yourself.

Do NOT use a conductive pen. It will will work. That shorts the resistor completely. Our mod is meant to be able to control the amount of resistance, not bypass it.

We discussed it a few pages back in this thread...

Cold Storm · Apr 6, 2008

Even if you want a perm. mod with this. Nail polish will work wonders. Non conductive..

DanishDevil · Apr 6, 2008

Have you seen any drop in voltage after the nail polish Cold Storm?

Hehe I should pick out a pretty color to match the PCB

Cold Storm · Apr 6, 2008

lol.. I don't have the card anymore. I gave it RM as a Christmas/Birthday present. He's helped me out a lot since I got back into this. So, I wanted to do something nice.
So I haven't done that. But, I believe Sneeky 100% on anything, so I go with that.

DanishDevil · Apr 6, 2008

Sweet! Once I get my Diamond 3870, I'll have to try it out.

Dr. Spankenstein · Apr 6, 2008

DanishDevil said:
Do NOT use a conductive pen. It will will work. That shorts the resistor completely. Our mod is meant to be able to control the amount of resistance, not bypass it.

We discussed it a few pages back in this thread...

...and it got shot down JUST as fast!

@eidairaman1,

Why would you post bad info twice?:shadedshu

Cold Storm · Apr 6, 2008

Once RM gets mine in his system, and redid the pencil mod, I'll see if we can talk him into it.. The card doesn't have a warr. anymore, so I don't think he'll say no... lol

eidairaman1 · Apr 6, 2008

hence why i put the warning lable on it.

Dr. Spankenstein · Apr 7, 2008

Quite...

"You could fire the shotgun at the intended target, or discharge it directly into your face. Be warned that the second option may not be reversable!"

Thanks for the disclaimer! :laugh:

DanishDevil · Apr 9, 2008

Hey guys. Trying to trade my HIS for Freaksavior's RMA'd Diamond.

I don't see an R1222. It looks like a totally different resistor pattern.

1: Is this pencil and/or voltmoddable, and by what methods?
2: Is this good for software voltage control?

freaksavior · Apr 9, 2008

yeah, anybody know?

erocker · Apr 9, 2008

DanishDevil said:
Hey guys. Trying to trade my HIS for Freaksavior's RMA'd Diamond.

I don't see an R1222. It looks like a totally different resistor pattern.

1: Is this pencil and/or voltmoddable, and by what methods?
2: Is this good for software voltage control?

The card in the pic does not support software voltage control. See attatchment.

Dr. Spankenstein · Apr 9, 2008

R1222 is clearly labled. Unfortunately, it's not there!

erocker · Apr 9, 2008

Dr. Spankenstein said:
R1222 is clearly labled.

Unfortunately, it is oriented vertically=no software voltage control.

I beleive you are looking at the wrong resistor for software control, the pic I posted before you

, shows the correct resistor. Unless both of them can determine software control?

DanishDevil · Apr 9, 2008

Oh wow I totally thought it was to the left of the label R684. Kinda hard to tell when you haven't seen that end of your 3870 for a few weeks

Thanks guys.

PS: erocker he was saying for the pencilmod...

Right?

Dr. Spankenstein · Apr 9, 2008

erocker said:
I beleive you are looking at the wrong resistor for software control, the pic I posted before you, shows the correct resistor. Unless both of them can determine software control?

How wierd that we did almost the exact same crop?

philbrown23 · Apr 9, 2008

my cards pecilmod quite nicely! but one of them is no longer functioning correcly! RMA time!

Dr. Spankenstein · Apr 9, 2008

Actually we were both wrong!

I corrected my image above!

Cold Storm · Apr 9, 2008

what do you mean isn't working right?
check to see about the mod it self?

DanishDevil · Apr 9, 2008

SEE MY PM! DON'T RMA!!!

Also, thanks for looking at it again guys. Looks like I'm on the lookout for another red 3870...

erocker · Apr 9, 2008

Dr. Spankenstein said:
Actually we were both wrong!

I corrected my image above!

http://forums.techpowerup.com/showthread.php?t=53220 W1zzard thinks I'm right!

Dr. Spankenstein · Apr 9, 2008

O.K., then we're both RIGHT!

I thought they were asking for the resistor to shade for pencil mod (R1222). My pic. It's not there!

The one you highlighted determines of software voltage control is possible. It's vertical.

...so there!

DanishDevil · Apr 9, 2008

Hmm. Maybe I'll have freaksavior try software voltage with the latest atitools...

Anyone try it yet? (without an already voltmodded card) LMAO

erocker · Apr 9, 2008

Beta 4 gave me a bunch of lockups.

System Name	PCGOD
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Power Supply	Cooler Master V1000
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System Name	Big Devil
Processor	Intel Core i5-2500K
Motherboard	ECS P67H2-A2
Cooling	XSPC Rasa \| Black Ice GT Stealth 240 \| XSPC X2O 750 \| 2x ACF12PWM \| PrimoChill White 7/16"
Memory	2x4GB Corsair Vengeance LP Arctic White 1600MHz CL9
Video Card(s)	EVGA GTX 780 ACX SC
Storage	Intel 520 Series 180GB + WD 1TB Blue
Display(s)	HP ZR30W 30" 2650x1600 IPS
Case	Corsair 600T SE
Audio Device(s)	Xonar Essence STX \| Sennheisser PC350 "Hero" Modded \| Corsair SP2500
Power Supply	ABS SL 1050W (Enermax Revolution Rebadge)
Software	Windows 8.1 x64 Pro w/ Media Center
Benchmark Scores	Ducky Year of the Snake w/ Cherry MX Browns & Year of the Tiger PBT Keycaps \| Razer Deathadder Black

System Name	Haro
Processor	AMD 1700x
Motherboard	AsRork x370 Taichi
Cooling	EK Custom Loop - CPU only
Memory	32gb G-Skill Trident Z
Video Card(s)	EVGA 1080 Superclock 2
Storage	Too Many
Display(s)	Viewsonic VX2450WM-LED 24" & LG 32 IPS
Case	Cooler Master Cosmos II
Power Supply	Cooler Master V1000
Mouse	SteelSeries Rival 500
Software	Win10 Pro
Benchmark Scores	i5 750 4.62ghz pi runs // Evga FTW p55

How-to: Pencil mod your HD 3870!

eidairaman1

The Exiled Airman

DanishDevil

Cold Storm

Battosai

DanishDevil

Cold Storm

Battosai

DanishDevil

Dr. Spankenstein

Cold Storm

Battosai

eidairaman1

The Exiled Airman

Dr. Spankenstein

DanishDevil

freaksavior

To infinity ... and beyond!

erocker

*

Attachments

Dr. Spankenstein

erocker

*

DanishDevil

Dr. Spankenstein

philbrown23

New Member

Dr. Spankenstein

Cold Storm

Battosai

DanishDevil

erocker

*

Dr. Spankenstein

DanishDevil

erocker

*

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