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post #481 of 534

7/3/12 at 6:06pm

Rhaziell

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Quote:

Originally Posted by madness777

The need for MHz got us to do this craziness.

Do you know exactly what you're doing, or are you just following some guides or common ideas shared among internet?
I'm studying IT, with some basics of electronics, but I would have doubts ie. which cap would be right one to expand, even with adequate datasheet.

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post #482 of 534

7/3/12 at 10:57pm

michaelrw
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Quote:

Originally Posted by Rhaziell

Do you know exactly what you're doing, or are you just following some guides or common ideas shared among internet?

I'm studying IT, with some basics of electronics, but I would have doubts ie. which cap would be right one to expand, even with adequate datasheet.

Some Many of these guys really do know what theyre doing and not just following a guide. Me personally, I just follow the guides. I did basic circuit analysis and quantum physics in my undergrad physics classes, so some of it makes sense. But I'm with you, in that I don't know how to determine which SMDs are the proper ones to be modded, even after reading the datasheets for the controller ICs.

CPU	Motherboard	Graphics	Graphics
i7 3770k - binned	ASUS Maximus 5 Extreme	MSI GTX 680 Lightning	MSI GTX 580 Lightning Extreme
Graphics	Graphics	RAM	RAM
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G.Skill Ripjaws X DDR3-2133 (PSC)	Crucial m4	Crucial m4	Mushkin Chronos
Hard Drive	Cooling	Cooling	Cooling
Seagate Barracuda - SATA III	K\|NGP\|N Cooling CPU Pot - F1 Gemini, rev. 1.0	K\|NGP\|N Cooling GPU Pot - Tek 9 Fat, rev. 6.0	SF3D Memory Pot - Triple Point
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i7 3770k - binned	ASUS Maximus 5 Extreme	MSI GTX 680 Lightning	MSI GTX 580 Lightning Extreme
Graphics	Graphics	RAM	RAM
MSI GTX 480 Lightning	EVGA 8800 GT 512	G. Skill Ripjaws X DDR3-1866 (Samsung)	G. Skill Trident DDR3-2000 (BBSE)
RAM	Hard Drive	Hard Drive	Hard Drive
G.Skill Ripjaws X DDR3-2133 (PSC)	Crucial m4	Crucial m4	Mushkin Chronos
Hard Drive	Cooling	Cooling	Cooling
Seagate Barracuda - SATA III	K\|NGP\|N Cooling CPU Pot - F1 Gemini, rev. 1.0	K\|NGP\|N Cooling GPU Pot - Tek 9 Fat, rev. 6.0	SF3D Memory Pot - Triple Point
Cooling	OS	OS	OS
Corsair H100	Windows 7 - RT7Lite Stripped	Windows XP - MicroXP	Windows XP - Pro SP3
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post #483 of 534

7/4/12 at 2:07am

madness777
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Well. Modding has been around for quite some time now... Looking at circuit boards, they're quite simple really. So you try to get to know it and then find the best spec for it. It's all about getting to know your card, with help from previous cards/mods. No card is the same, but they work on the same principle. So if you use 2.5v 820uF caps on a 8800GT mod and it works perfect, they must be good for like a GTX570.
I've tried stronger caps (1500uF) but they didn't work so well with my card. So more doesn't mean it's better. And adding 100 caps isn't the only solution, besides, if the board already has good quality caps/inductors (power circuit) and enough of them, adding more just reduces the load of the ones already on the board thus reduces ripple by a tiny bit, gaining a little bit of stability and MHz.
So in time you get used to it and kinda know what you have to do to make it work. But you never know.

So, yes, we follow guides and share ideas/findings. People who share them are helping others.

Just my

post #484 of 534

7/4/12 at 2:09am

Artikbot
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Quote:

Originally Posted by michaelrw

But I'm with you, in that I don't know how to determine which SMDs are the proper ones to be modded, even after reading the datasheets for the controller ICs.

Lol I take different approaches. When I don't know which IC am I working with, I just plug a PSU to the power rail of the component I want to regulate and call it a day

That's especially easy with SOP DDR chips. Three pins per side

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A dumpload of ancient AGP cards	Kingston Value DDR2-667 CL4 2T @CL3 1T	Seagate 160GB 7200.10	LG IDE DVD-ROM
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Seagate 7200.12	Samsung SpinPoint F3	EK Supreme HF	EK CoolStream XT360
Cooling	Cooling	OS	Monitor
Alpahcool Coolplex Pro 10LT	Phobya DC12-400	Windows 7 Ultimate & Fedora 17	LG IPS235V
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AMD A10-5700	Gigabyte F2A75M-HD2	Radeon 7660D	G.SKILL Ares 2133 CL9
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Core2Duo E6400	Core2Quad Q6600	Pentium Dual Core E5200	AsRock 4COREDUAL-SATA2 R2.0
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A dumpload of ancient AGP cards	Kingston Value DDR2-667 CL4 2T @CL3 1T	Seagate 160GB 7200.10	LG IDE DVD-ROM
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post #485 of 534

7/4/12 at 8:20am

michaelrw
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Quote:

Originally Posted by madness777

Well. Modding has been around for quite some time now... Looking at circuit boards, they're quite simple really. So you try to get to know it and then find the best spec for it. It's all about getting to know your card, with help from previous cards/mods. No card is the same, but they work on the same principle. So if you use 2.5v 820uF caps on a 8800GT mod and it works perfect, they must be good for like a GTX570.
I've tried stronger caps (1500uF) but they didn't work so well with my card. So more doesn't mean it's better. And adding 100 caps isn't the only solution, besides, if the board already has good quality caps/inductors (power circuit) and enough of them, adding more just reduces the load of the ones already on the board thus reduces ripple by a tiny bit, gaining a little bit of stability and MHz.
So in time you get used to it and kinda know what you have to do to make it work. But you never know.
So, yes, we follow guides and share ideas/findings. People who share them are helping others.

Just my

well put, sir

Quote:

Originally Posted by Artikbot

Lol I take different approaches. When I don't know which IC am I working with, I just plug a PSU to the power rail of the component I want to regulate and call it a day

That's especially easy with SOP DDR chips. Three pins per side

lol

CPU	Motherboard	Graphics	Graphics
i7 3770k - binned	ASUS Maximus 5 Extreme	MSI GTX 680 Lightning	MSI GTX 580 Lightning Extreme
Graphics	Graphics	RAM	RAM
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i7 3770k - binned	ASUS Maximus 5 Extreme	MSI GTX 680 Lightning	MSI GTX 580 Lightning Extreme
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MSI GTX 480 Lightning	EVGA 8800 GT 512	G. Skill Ripjaws X DDR3-1866 (Samsung)	G. Skill Trident DDR3-2000 (BBSE)
RAM	Hard Drive	Hard Drive	Hard Drive
G.Skill Ripjaws X DDR3-2133 (PSC)	Crucial m4	Crucial m4	Mushkin Chronos
Hard Drive	Cooling	Cooling	Cooling
Seagate Barracuda - SATA III	K\|NGP\|N Cooling CPU Pot - F1 Gemini, rev. 1.0	K\|NGP\|N Cooling GPU Pot - Tek 9 Fat, rev. 6.0	SF3D Memory Pot - Triple Point
Cooling	OS	OS	OS
Corsair H100	Windows 7 - RT7Lite Stripped	Windows XP - MicroXP	Windows XP - Pro SP3
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post #486 of 534

7/4/12 at 5:02pm

Rhaziell

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As far as I know, using many times bigger caps, like 1000 uF when max would be ie. 220, will make even worse results then using parts with lower capacity. (I read about it while was making some audio amps)

For modding, I just haven't read any GPU ic datasheet, so I don't know much about them. I'd really appreciate some basic guide, and I think I'm not the only one. Some good examples with proper descriptions would be really nice to see :)

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post #487 of 534

7/5/12 at 3:04am

madness777
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Search the forums/google for guides. There are lots of them. http://www.overclock.net/t/623325/ocns-vmod-squads-volt-mod-essentials

post #488 of 534

7/5/12 at 5:25am

Rhaziell

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Quote:

Originally Posted by madness777

Search the forums/google for guides. There are lots of them. http://www.overclock.net/t/623325/ocns-vmod-squads-volt-mod-essentials

Thank You for that link, rep

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post #489 of 534

7/5/12 at 12:00pm

PizzaMan
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Quote:

Originally Posted by Rhaziell

This is a very interesting thread

Where did you guys learned all that stuff? Are this all your own ideas?

Quote:

Originally Posted by madness777

Well. Modding has been around for quite some time now... Looking at circuit boards, they're quite simple really. So you try to get to know it and then find the best spec for it. It's all about getting to know your card, with help from previous cards/mods. No card is the same, but they work on the same principle. So if you use 2.5v 820uF caps on a 8800GT mod and it works perfect, they must be good for like a GTX570.
I've tried stronger caps (1500uF) but they didn't work so well with my card. So more doesn't mean it's better. And adding 100 caps isn't the only solution, besides, if the board already has good quality caps/inductors (power circuit) and enough of them, adding more just reduces the load of the ones already on the board thus reduces ripple by a tiny bit, gaining a little bit of stability and MHz.
So in time you get used to it and kinda know what you have to do to make it work. But you never know.
So, yes, we follow guides and share ideas/findings. People who share them are helping others.

Just my

Yes, we share and learn. Teaching each other as a community. I think 99% start off just following the guides, but end up downloading and reading datasheets to reverse engineer the guides. Curious of what we just did to our component. Eventually you ask enough questions, receive enough answers to start making sense of it.

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post #490 of 534

8/8/12 at 10:54pm

michaelrw
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so after benching with just the vgpu mod, and finally being able to read that my card has the sammy mem ICs, I decided to go forward with the vmem mod. so here it is

however, does anyone know where I can wire up some vmem read points?
this is the model ive been following and i dont see anything on it about vmem read points so...

also, the flux in solder.. it's not conductive right? i see a little bit of clear stuff on the adjacent pin where i soldered the VR wire to and im assuming a little bit of flux got on it.. hoping thats not a problem
Edited by michaelrw - 8/8/12 at 10:56pm

CPU	Motherboard	Graphics	Graphics
i7 3770k - binned	ASUS Maximus 5 Extreme	MSI GTX 680 Lightning	MSI GTX 580 Lightning Extreme
Graphics	Graphics	RAM	RAM
MSI GTX 480 Lightning	EVGA 8800 GT 512	G. Skill Ripjaws X DDR3-1866 (Samsung)	G. Skill Trident DDR3-2000 (BBSE)
RAM	Hard Drive	Hard Drive	Hard Drive
G.Skill Ripjaws X DDR3-2133 (PSC)	Crucial m4	Crucial m4	Mushkin Chronos
Hard Drive	Cooling	Cooling	Cooling
Seagate Barracuda - SATA III	K\|NGP\|N Cooling CPU Pot - F1 Gemini, rev. 1.0	K\|NGP\|N Cooling GPU Pot - Tek 9 Fat, rev. 6.0	SF3D Memory Pot - Triple Point
Cooling	OS	OS	OS
Corsair H100	Windows 7 - RT7Lite Stripped	Windows XP - MicroXP	Windows XP - Pro SP3
Monitor	Power	Case	Mouse
Asus VW246H	Corsair AX1200	dwood Test Bench	Logitech G300
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CPU	Motherboard	Graphics	Graphics
i7 3770k - binned	ASUS Maximus 5 Extreme	MSI GTX 680 Lightning	MSI GTX 580 Lightning Extreme
Graphics	Graphics	RAM	RAM
MSI GTX 480 Lightning	EVGA 8800 GT 512	G. Skill Ripjaws X DDR3-1866 (Samsung)	G. Skill Trident DDR3-2000 (BBSE)
RAM	Hard Drive	Hard Drive	Hard Drive
G.Skill Ripjaws X DDR3-2133 (PSC)	Crucial m4	Crucial m4	Mushkin Chronos
Hard Drive	Cooling	Cooling	Cooling
Seagate Barracuda - SATA III	K\|NGP\|N Cooling CPU Pot - F1 Gemini, rev. 1.0	K\|NGP\|N Cooling GPU Pot - Tek 9 Fat, rev. 6.0	SF3D Memory Pot - Triple Point
Cooling	OS	OS	OS
Corsair H100	Windows 7 - RT7Lite Stripped	Windows XP - MicroXP	Windows XP - Pro SP3
Monitor	Power	Case	Mouse
Asus VW246H	Corsair AX1200	dwood Test Bench	Logitech G300
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