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post #311 of 553
Quote:
Originally Posted by theo.gr View Post
Guys enjoy!
First 5770 on 03!I beat a guy of 200MHz more core dunno how but it happened!
http://hwbot.org/rankings/benchmark/...radeon_hd_5770
YOu beat an AMD proc, that's how
    
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post #312 of 553
2400 PRO, vmem mod doesn't work, needs redoing. Got GPU to 1.55v, but it won't go over 857mhz, tried up to 1.65v.


Also, I got these 10v 2200uF caps here, so maybe they help me get some more mhz
2200 uF isn't too much right? Stock ones are 10v 470uF for memory and 2.5v 820uF for GPU. Thought of piggybacking them.
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post #313 of 553
Piggy backing is the way to go

I have the same issue with a 6600GT I played with a few months ago. No mater how much voltage I give GPU (1.8v) it wouldn't increase in clock. It's an OCP limit. Need to figure out an OCP mod. One of these days I'll try to figure mine out. What is the IC on your card?
    
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post #314 of 553
NEXEM NX2124, both for vmem and vgpu. Datasheet: http://www.nexsem.com/pdfs/2124DS.pdf

FB is pin 6 and ground is pin 3.
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post #315 of 553
Quote:
Originally Posted by PizzaMan View Post
Piggy backing is the way to go

I have the same issue with a 6600GT I played with a few months ago. No mater how much voltage I give GPU (1.8v) it wouldn't increase in clock. It's an OCP limit. Need to figure out an OCP mod.
U gave me a great idea as to why i couldnt increase clocks too in my 6200TC!From 1,8 to 2,2vCOREdidnt get a single Hz!
Lucky me i know the OCP mod!So what i need is to solder in parallel and then lower the value to 0 right?So no matter the current there wont be any OCP setting to stop it right?

Quote:
Originally Posted by Andr3az View Post
NEXEM NX2124, both for vmem and vgpu. Datasheet: http://www.nexsem.com/pdfs/2124DS.pdf

FB is pin 6 and ground is pin 3.
Good luck with the OCP mod!
    
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post #316 of 553
Thread Starter 
@ theo- you will either have to judge off the data sheet or by messing with it yourself.. the mod could work with increased resistance .. or decreased, only testing or details in the datasheet can reveal the answer. If OCP point is connected to FB, then you must raise resistance to kill OCP...
post #317 of 553
I don't know anything about OCP mods
Do I find it on the IC-s datasheet? Because there is OCP mentioned few times.

Theres some OCP comparator thingy on the IC-s block diagram. It looks like it is connected to the SW pin.
Am I even looking in the right direction?

EDIT: So can I piggyback 2.5v and 3.3v with 10v caps? Or it would be bad idea?
Edited by Andr3az - 2/28/10 at 11:56am
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post #318 of 553
Quote:
Originally Posted by CL3P20 View Post
@ theo- you will either have to judge off the data sheet or by messing with it yourself.. the mod could work with increased resistance .. or decreased, only testing or details in the datasheet can reveal the answer. If OCP point is connected to FB, then you must raise resistance to kill OCP...
I saw on the datasheet that its triggered on the 360mV i think...anyway i thinkit was connected to FB so thre will be need to remove the resistor and replace it right?
    
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post #319 of 553
Quote:
Originally Posted by theo.gr View Post
I saw on the datasheet that its triggered on the 360mV i think...anyway i thinkit was connected to FB so thre will be need to remove the resistor and replace it right?

Quote:
voltage on SW pin is below 360mV the over current occurs
I'm going to say a lower resistance on SW to help keep the voltage from dropping below 360mv. Additional caps should help to.
    
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post #320 of 553
got the same question as andr3az, can i just put 10v 2200uf/3300uf caps onto anything below it? like if i have a 2.5v 2200uf cap, and a 2200uf 10v cap, would they perform the same? i dont have a 2200uf 2.5v cap, but just a hypothetical, because i DO have some 2200 and 3300uf 10v caps

currently have 2.5v 850 or something uf caps on my core
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