|| 2500K @ 5GHz 1 thread, 4.8 2 threads, 4.7 3, 4.6 4 1.284V ||
|| P8P67-M Pro || 8GB @ 2133MHz ||
|| 5850 @ 1000/1225 || XFX 650W || Silverstone FT03B ||
|| 37" LCD TV || CM Hyper 212+ || Samsung 2.1 Soundbar ||
WAITING FOR SOMETHING... FULL LIQUID BY YBRIS Ybris A.C.S. FULL CHROME Limited Edition N°058 | Ybris A.C.S.-G FULL CHROME Limited Edition N°058 | SANSO PDH-054 12V A.F. | Feser Xchanger Q.R. 480 with Feser Xtender blue\Scythe Ultra Kaze 3000rpm | Tecnofront Bay Trap | Tygon R-3606 3\8" 1\2"
Proc: Q9650 9x496 @ 1.440v batch L844B703
Ram: 2x2GB OCZFlexII PC-9200 4:5 1240MHz 6-6-6-18 @ 2.12v
Mobo: Gigabyte EP45-UD3P rev 1.0 - bios F9b
Video: 2x Palit Dual Sonic HD4870 1GB in CF (840/4400)
PSU: OCZ PowerStream 520W + Thermaltake VGA 450W
HDD: 3x250Gb Barracuda 7.10 SATA2 Raid0 (ICHR10) 2x200Gb Barracuda 7.10 SATA2 Raid1 (ICHR10)
Audio: Audigy 4
Case: Dual Coolermaster Stacker; one for system rig and one for watercooling loop and cooling
[SIGPIC][/SIGPIC]
DemonEyez, these are my friend cards. He only wanted Vgpu mod. Vmem mod doesn't help alot. Also, it has 0,8ns chips which overclock better
Vmods - what can possibly go wrong? ©
yeah I know. Did some testing and I can do 1175MHz on the 0.8ns Samsung chips.
If I do 1200 I get instability. So I was just wondering if these Samusng chips like more voltage.
Any idea how much they run on at stock speed?
And just to be 100% sure, this is vGPU mod right? :
Proc: Q9650 9x496 @ 1.440v batch L844B703
Ram: 2x2GB OCZFlexII PC-9200 4:5 1240MHz 6-6-6-18 @ 2.12v
Mobo: Gigabyte EP45-UD3P rev 1.0 - bios F9b
Video: 2x Palit Dual Sonic HD4870 1GB in CF (840/4400)
PSU: OCZ PowerStream 520W + Thermaltake VGA 450W
HDD: 3x250Gb Barracuda 7.10 SATA2 Raid0 (ICHR10) 2x200Gb Barracuda 7.10 SATA2 Raid1 (ICHR10)
Audio: Audigy 4
Case: Dual Coolermaster Stacker; one for system rig and one for watercooling loop and cooling
[SIGPIC][/SIGPIC]
Yes, You can use all these points:
I soldered over the two point marked with blue lines
Vmods - what can possibly go wrong? ©
NapalmV5, have You done cap-mod for HD4850 also?
Vmods - what can possibly go wrong? ©
WAITING FOR SOMETHING... FULL LIQUID BY YBRIS Ybris A.C.S. FULL CHROME Limited Edition N°058 | Ybris A.C.S.-G FULL CHROME Limited Edition N°058 | SANSO PDH-054 12V A.F. | Feser Xchanger Q.R. 480 with Feser Xtender blue\Scythe Ultra Kaze 3000rpm | Tecnofront Bay Trap | Tygon R-3606 3\8" 1\2"
G-UNIT91, these were my friend cards. I don't have them anymore and can't do pics...
Vmods - what can possibly go wrong? ©
WAITING FOR SOMETHING... FULL LIQUID BY YBRIS Ybris A.C.S. FULL CHROME Limited Edition N°058 | Ybris A.C.S.-G FULL CHROME Limited Edition N°058 | SANSO PDH-054 12V A.F. | Feser Xchanger Q.R. 480 with Feser Xtender blue\Scythe Ultra Kaze 3000rpm | Tecnofront Bay Trap | Tygon R-3606 3\8" 1\2"
NBF, no, I haven't had time yet.
But try to lower resistance more. Sadly I can't be sure if that is 100% the FB pin
Last edited by ceemic; 10-27-2008 at 07:45 PM.
Vmods - what can possibly go wrong? ©
hi @ all, I'm new here in this great forum.
Have some questions because I want to mod my Gigabyte HD4850 reference design. Its my first mod . I have a water-cooled system, PA120.3 + Laing Ultra.
Which is the best cooling solution for me, with a reference voltmoded 4850? I don't want to spend additional 100€ for a GPU w nearly the same price. Tought about 50-60€.
Shoud I buy a Swiftech MCW60-R universal Rev. 2 (42€) + little Ram an VRM coolers (where to buy?) - or shoud i buy the Heatkiller Watercool HK GPU-X2 Ati 4850 LT for 59€?
Is the cooling performace of the HK good enough to clock the card towards 850-900 Mhz? Mem + VRM cool too? Don't know if the reference design HD4850 can do this. Especially the VRM, what can i do to hold them on low temps? Will the Swiftech the better solution for me? May i able to use the Siftech on comming GPUs again?
Perhaps somebody have the time to list what i've to buy for ideal cooled OC HD4850.
Thanks a lot - sry for my bad english
Greedz from Germany
Edit:
Bought a Swiftech MCW60-R + 2 Zalman ZM NB47J and 2 Zalman ZM-NB32K witch I will cut into pieces and fix onto the phases and VR
Edit2:
Card is here, goes for 700/1100 without problems in renamed Furmark (~4900 points on standard settings). Fan at 90% für benching. No Mods done so far, standardcooler. Watercooler an resitors will come on friday. =)
Last edited by Krautmaster; 10-29-2008 at 05:59 AM.
I'm needing some assistance here,I was trying to discovery an alternative point of soldering for my non reference sapphire card(it does not have that "big" pad like the reference one),so I followed the trace and discovered one resistor that with my multimeter was measuring exactly 0,so what I did was to remove it,make a bridge between the points and solder a wire to it,after that the card doesn't boot anymore,which doesn't seems to make any sense,any idea what might happened?Also I lose the resistor so I can't put it back anymore,can anyone please measure the resistance of R656 so if it's not zero I can solder a trimpot to the points and set the original resistance?It doesn't need to be from the same card,any reference card will almost for sure have exactly the same resistance I'm looking for.
Thinking better,the problem might not be that,I tried to use "conductive" glue on the leg of the chip(it does not conduct very well,about 1000 ohms),after seeing that I would not be able to use it I cleaned as much as I could(apparently there is no glue left),but some of the glue might have flow underneath the chip,can anyone please measure the resistance between these two points to see if that is my problem(the last leg and the one left to it)?Again,it does not need to be from the same card,any reference one should have the same resistance.
Last edited by GamerBR; 10-29-2008 at 07:04 PM.
my unmoded reference card with standard voltages and only fan mod does 730/1100 , more not tested yet. Furmark gives me about 103 °C without errors, tested crysis for about 2 hours stable with about 95°. MEMIO is always the highest temperature. Idle 75° fan @ 20% load fan @ 95%
Intel 990X ES @ 6x4,60Ghz@1,440V klick / DFI UT x58@ MIPS HD6950@70@1Ghz / 256GB M4 SSD / X-Fi / HK3.0 - Laing Ultra - Thermochill PA120.3 + TFC 120er + Cape Cora Ultra 8x/ Aquaero Steuerung / Lian Li A7110B / Seasonic Platinum 1kw / 2xDell IPS 23" / Win 7 + Server 2008 R2/ DSL 16K
HTPC + HTPC Wiki + sysProfile + Clarkdale @<15W + Eigenbau-Ambilight + Ambilight PreOrder
@GamerBR : i can measure this resistor, but can u please mark it on the picure, cant find R656 atm.
If possible contact me, via ICQ #46700077 cause i am only here from time to time, and i think your request is urgent?
I added you on ICQ,but I don't have it installed here anymore,so I entered on ICQ2Go,apparently you are not online now.I suppose you have the same card as mine right?I marked on the picture which resistor it's.Could you also please measure the resistance between the other two points marked?Now I think it's more likely that this is the problem,it doesn't make much sense that removing a resistor with no resistance at all and linking the points with solder could make the card stop working.
Thanks for the help
Last edited by GamerBR; 10-30-2008 at 05:02 AM.
NBF, that's pretty bad yeah
But I will do what I promised: I'll solder VR to every pin and start to look which works 2 down, 14 to go
Vmods - what can possibly go wrong? ©
NBF, I talked with my friend Jaan (some of here might know him for his exteme Vmoding skills) atm. He gave some hints how to look right place. I'll do some measurements and report back. And it can be the BD-AF IC
EDIT: I tried to figure something and here are my thoughts:
First bet would be "14" marked on my pic. Resistance to GND is ~1002 ohm (~1,0k ohm). If You have time maybe You can confirm it? 20k VR should be safe. There are many good soldering points. Sadly, I don't have time to try it next 2 days...
Last edited by ceemic; 10-30-2008 at 07:19 PM.
Vmods - what can possibly go wrong? ©
IT WORKS
So I used 20k VR and Vgpu rised pretty lot (I used ATi Tray Tools to adjust Vgpu and render 3D):
Before Vmod:
1,044@ATT -> 1,209V/1,322V (2D/3D)
1,158@ATT -> 1,339V/1,328V
After Vmod:
1,044@ATT -> 1,268V/1,386V
1,158@ATT -> 1,405V/1,392V
EDIT: I recommend a switch for 24/7 use, because 20k VR rised Vgpu a little bit too much and it boosts GPU temp! PWM and PCB temp even more!
Last edited by ceemic; 10-31-2008 at 04:30 AM.
Vmods - what can possibly go wrong? ©
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