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The OCN Volt Mod Squad | HWbot's Finest | The Official Club - Page 57

post #561 of 1336
Thread Starter 
Quote:
Originally Posted by Patch View Post
If that's an open offer I'd like to be in line for one.

I've had some ideas for freezing mobo and graphics memory bouncing around in the back of my head. The little bloodrage pots are squat and light, and the expanded surface area of the base for mounting would work nicely for one of those ideas.

Edit: Now that the cogs are turning on this path, I'm remembering I have a caldera heatsink somewhere.

Now I'm gonna look sideways at the 4870X2 I use in my 24/7 family rig...

Hmm.....4870X2 + soldering iron + 2 GPU LN2 pots + caldera heatsink + dremel.....recipe for GPU+memory extreme overclocking awesomesauce.....
feel free patch I have 3 of them sitting around doing nothing but holding spare screws and the like

looks like the family rig is going to get a downgrade to some of the 3000 series you just modded or something else because I believe patch came up with a devious plan...

Pizzaman" do you leave ram sinks on for the DICE or do you cover the memory chips with liquid tape as well, I found out the temps coming from the dice seem to chill the memory quite well
post #562 of 1336
Quote:
Originally Posted by PizzaMan View Post
No, I don't have the DICE pot ready. Last week when I went by the only industrial supply that sells them within a 30 min driving area, they hadn't restocked the 1.25" and 1.5" copper caps which they are out of. I've made sure to point it out to the guy at the desk. Hoping they'll have some next week. Once I get the caps I can start lapping them. The NB block is at a stand still also. Went to Lowe's for sandpaper and the highest grit they had was 320. So......I'm wasting time on old as$ GPUs. /rant

lol, I never read the data sheet. I was just looking at the layout pics in the first pages. I should try reading them more often.

Ok, so my first question was/is do I lower or raise COMP1 resistance? The data sheet states "COMP pin will rise higher".

Then I read this "1-2 clock pulses of the internal
oscillator; 3-6μs at the nominal 300kHz; 2-4μs at 500kHz" and I think capacitance.

Then I test Comp1 and it doesn't have any resistance. hmmmm, should I add resistance or maybe I need to remove the connection. I've found 3 resistors that are connected to the COMP1 pin.

BRB with some pics
Do you think the comparator pin is an input or an output? I used to know how op amps worked and were set up as a comparator but I cant remember which was the inverting pin or the non inverting pin on the op amp, I havent done this stuff in so long Pizza

Im not exactly sure how the clock pulses are generated, I do notice though that when the frequency increases to 500kHz the pulse time decreases by 1-2 micro seconds which is done through the clock cycle filter on the output of the comp pin for shorts, hence the faster frequency.

This is one of the hardest chips I have ever dealt with.

Im going to keep studying this sheet and see if I can make sense of this or crack open the old school books. Can you tell where those resistors on the comp pin are going, are they going to ground or another source?

I have to say at the moment I am stumped

Edited by Voltage_Drop - 12/29/09 at 8:57pm
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(13 items)
 
  
CPUMotherboardGraphicsRAM
|i5 750-voltage may vary| |Foxconn Katana[Non GTI]| 380 4Gb |4Gb/Tridents@Clocked| 
Hard DriveOSMonitorPower
|[V3/60Gb][500Gb]| |Windows 7 64 bit| |LG-EW224| |Antec HCG750| 
Case
|Tech Station| 
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EVOLVE
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|i5 750-voltage may vary| |Foxconn Katana[Non GTI]| 380 4Gb |4Gb/Tridents@Clocked| 
Hard DriveOSMonitorPower
|[V3/60Gb][500Gb]| |Windows 7 64 bit| |LG-EW224| |Antec HCG750| 
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|Tech Station| 
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post #563 of 1336
Voltagedrop is a badass at this ****
post #564 of 1336
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Quote:
Originally Posted by IthankImightbhigh View Post
Voltagedrop is a badass at this ****
I'd say so considering I don't understand 75% of what he is saying at this point. Also my nomination for funniest name on OCN goes out to you...
post #565 of 1336
Quote:
Originally Posted by IthankImightbhigh View Post
Voltagedrop is a badass at this ****
Hell yeah, no for real though Im still a newb, but thanks though

@Doc-Thanks man
EVOLVE
(13 items)
 
  
CPUMotherboardGraphicsRAM
|i5 750-voltage may vary| |Foxconn Katana[Non GTI]| 380 4Gb |4Gb/Tridents@Clocked| 
Hard DriveOSMonitorPower
|[V3/60Gb][500Gb]| |Windows 7 64 bit| |LG-EW224| |Antec HCG750| 
Case
|Tech Station| 
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CPUMotherboardGraphicsRAM
|i5 750-voltage may vary| |Foxconn Katana[Non GTI]| 380 4Gb |4Gb/Tridents@Clocked| 
Hard DriveOSMonitorPower
|[V3/60Gb][500Gb]| |Windows 7 64 bit| |LG-EW224| |Antec HCG750| 
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|Tech Station| 
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post #566 of 1336
Voltage Drop overclocked my **** and now it runs ten times faster
post #567 of 1336
Lol, when Pizza, Doc and Vdrop start brainstorming back and forth my brain just glazes over. I have to keep scrolling until I find a picture with pretty colors on it to direct my soldering iron.
24/7
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2600K @ 5.0 ghz 1.4v Gigabyte UD4 GTX 580 Lightning Ripjaws 2133Mhz 7-10-10-27 
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Kingston 128 SSD Win7 64 Samsung 245T HX1000 
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24/7
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CPUMotherboardGraphicsRAM
2600K @ 5.0 ghz 1.4v Gigabyte UD4 GTX 580 Lightning Ripjaws 2133Mhz 7-10-10-27 
Hard DriveOSMonitorPower
Kingston 128 SSD Win7 64 Samsung 245T HX1000 
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Lian Li 
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post #568 of 1336
y can't i rep anyone up
post #569 of 1336
my pipe is overheating
Edited by IthankImightbhigh - 12/29/09 at 10:05pm
post #570 of 1336
Thread Starter 
Quote:
Originally Posted by Patch View Post
Lol, when Pizza, Doc and Vdrop start brainstorming back and forth my brain just glazes over. I have to keep scrolling until I find a picture with pretty colors on it to direct my soldering iron.
LOL, they must have studied this stuff because my so called "expertise" stops at interpreting datasheets and trying to figure out OCP mods on PWMs, you start getting into two different power regulations on one IC and im toast

sometimes pics don't always work either, a while back patch I tried to duplicate that VID mod for the PNY 8800GT that you tried and bricked your card doing... well mine changed the vid alright... to 0.85v stock LOL

but by doing so I discovered that the OCP never changed even at that vid...
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