SAPPHIRE Radeon HD 5870 1GB - Pencil Mod - Non Ref Card

[csiki89]

hy my black resistor broken down, what can i do? thx

[vl199]

hey man i have a digital multimeter but i don't know what setting to choose from the wheel.. can you help me??

[Slappa]

@vl199 Should be either an arrow or omega sign or something similar

[idan124]

how did i do it on gigabyte version ???? thx

[Slappa]

@idan124 Unfortunately it depends on the card. I do not have your exact card, so I couldn't tell you. It depends on the IC/VRM's your card uses.

[idan124]

@Slappa maybe we can talk somday on video and u well help me???

[2007vitaly]

Can u undo this , or this is permanent mode? I got an 5870 ref design and want to go over 1.35v to around 1.6v how can i do this accurately?

[Slappa]

@2007vitaly It is not a permanent mod, pencil mods can simply be erased.

Pencil mods are not accurate whatsoever. You would need to do a permanent solder on mod to be accurate. 1.6V is too much for 5870's to handle

[terorvlad]

Wow, that's ingenious. Never thought graphite can be used to overclock... Thx a lot man :)

[Slappa]

@terorvlad It definitely can :) .....glad you liked the video

[adbanor]

why this 5870 have the 5830 design?

[Slappa]

@adbanor It is true, they were based off of very similar designs

[thedowner]

So how high were you able to OC with this mod?

[sharpshoooter82]

hey wats up i wanna start doing some extreme overclocking i have 200bucks to spend

my current system

amd athlon II X4 620

GIGABYTE 770t-ud3p

ocz 4gb drr3 1330mhz 9-9-9-24 upgrade for sure

500w coolmax psu upgrade for sure

msi cyclone gts 450

i cant get my cpu over 3.5ghz stable

[Slappa]

@sharpshoooter82

Hey dude,

To be honest, I don't think extreme overclocking should mean better parts right off the bat. I agree the PSU needs to be upgraded. However you should see how far you can push what you have. You'd be surprised what you may get out of that ram and cpu. I would invest in some high CFM fans, buy a nice aircooler or H70 for the cpu, and get a new PSU. Then push as much as you can.

[sharpshoooter82]

@Slappa im for sure gonna do sluch box with an h50

h70 is kinda too expensive for me

currently i have a cm hyper 212+

i just need my parents to buy me some hardware off newegg i think im gonna get

gskill ripjaws x

h50

some fans wat would u recommend

thermal paste is im putting the h50 under ice could i use theres alot out side my window lol

and will i need to do something when under h50 with rad under ice or snow

[Slappa]

@sharpshoooter82

Slushbox will be fun.

Buy some high CFM fans. They will be noisy, but get the fastest spinning fans and they will cool the ram well. for slushbox you won't need fans on the H50, but when youre just doing air benching you'll also want fast fans for that.

For thermal paste use something that will not freeze. Get arctic silver ceramique. When under air, use AS5 or something similar.

As for the ram, any ram will be good. I would try pushing what you have first.

[sharpshoooter82]

@Slappa ok thanks for the help i wanna bench on air frist with h50 thne move on too slushbox

[crabid]

Would pencil mods work on dell motherboards for the CPU?

*looks ominously at an old pentium 4*

[Slappa]

@crabid Absolutely, but the correct resistor would have to be identified

[Blackout9550]

the question is how do you identify the GPU Ic?

[Slappa]

@Blackout9550 There are resources all over the internet where you can type in the chip number and get a profile of the semi-conductor

[RickArter]

Great vid nice info might do same to my 460 is possible.