anyway to get what ohm res your using for the vdrop persivore?
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anyway to get what ohm res your using for the vdrop persivore?
My Vdroop resistor is set to 1.097k atm, which gives no droop at 1.45v with a 3700 at 2.8ghz. Its possible that you might need a different value to that, depending on how you have done the Vcore mod.Quote:
Originally Posted by jonspd
Persivore you're the man :)
Done the vcore mod two times now, three times when including the ocwbeta mod I did before, and they work like a charm. First time I had a wire coming off in two hours off running. I was like wtf...
Just a black screen, and when I treid to reboot I kept just that black screen, didn't beep either nothing. Looked at my booster and it was showing vdim @ 1.4v. I thought I killed something, checked the wires and one was loose so I removed the other one. Still didn't boot, vdim still so darn low. Took the ram out, rebooted fine with my backup ram. Afraid I freid my ram, put them back one at a time and they were both fine. Vdim back to normal to. I still don't know what the hell went wrong there but I'm glad it's all good now anyway :D
Anyway, might need to adjust the vr a bit still, it's giving me .2v above bios and might be a bit to much. Still thinking about vdroop mod and maybe vdd mod. And still waiting for you to come up with another vcore readpoints because those three you pointed out in post #1 are emailed and won't be solderd on ( my experience then ). But might have holded if I used some hotglue like I did the last time for the vcore mod.
:banana: Persivore :banana:
You deserve a :toast:
Edited in some pics, hotglue appleid already so there's not much to see ( details of the soldering job )
http://img211.imageshack.us/img211/3...08558hb.th.jpg
This pic is really bad but shows where I put the vr so I thought what the heck
http://img97.imageshack.us/img97/831...08526or.th.jpg
I've added a Vcore read point to the first post :)
Persivore. Is there a way to do the VLDT mod via smd grabber on the chip you do the VAGP and VDD mod's on?
I really do hate soldering any help to increase my VLDT without soldering would be great.
Jonspd
I plan to voltmod my mobo,Quote:
Also 99% of the mothernoards I see have places where caps used to be but were not placed due to engineering finding out they didnt need to be there for stable operation at normal clocks. i've seen the best improvements from simply adding the missing caps on my boards. adding the missing caps near the cpu sockets always have improved stability.
also noticed a tread where Stevil added caps in parrallel to his radeon for him to squeeze out the very last MHZ.
I got 2 dead mobo's with decent caps all waiting for an purpuse.
I plan to go ahead and cap mod my radeon
and have a good mind to give the dual sata2 the same treatment.
Having a quicklook
http://images.anandtech.com/reviews/.../asrock939.jpg
I noticed a few spaces marked for a capacitor. Does anyone have thought about the result adding and filling in capacitors will help overall stability?
Maybe even cap mod my antec tp 380W/w modded voltrails?
Not sure about the cap mod's but would like to know.
I just got done with a few mod's from scratch also added a old molex header for vdd, vcore, vldt, and vddim reading. I forgot to do the vdroop and vsb but then again I didnt want to solder to much and not get a post.
Jonspd
The capacitors used on the board are already good quality (they're the same as those used on some Asus boards). I've seen cap mods harm performance on some boards. Adding some small value (100nf) capacitors very close to the CPU's Vcore pins would probably be of more benefit than adding lots of bulk capacitance.
does anyone else besides me have problems with random bluescreens on this board? i've actually almost figured out the reason for these BSOD's, but i'm nowhere near the solution:D i get a BSOD (machine_check_exception) almost every time i switch on/off a desk lamp which is plugged in the socket next to the computer on the wall, its the same with almost any electric device. from time to time i also get a totally random BSOD, but i figure these are also coming from some kind of fluctations in the electric network.
i suppose it's a sensitivity bug with the board...seems that it's somehow just too darn sensitive to any kind of fluctation, and it can be really annoying!:confused:
any ideas how to fix somethin like that? or what can it be related to, bad PSU quality? (it's a 420w chieftec)
btw, it's my first post here, though i've been reading for over a year now...so hi everybody:toast:
Maybe your voltage rails are to low, your psu not powerfull enough...
Would be interesting to increase the quality of my 5v rail (/w cap mod?)
After Vdrop mod I doubt I'le have problems with a stable vcore nor a heat problem but I want every last MHZ out of my memory. Perhaps adding caps around the memory banks aswell?
It could be grounding problem.Quote:
Originally Posted by wiltz
look inside the switch and see if the ground wire is attatched to the outlet.
also use a power surge unit, exclusivley used for PC, monitor, speakers, etc.
Persivore, I did vdd, vldt and works great. thank you.
Is there a way to mod the windbond to be able to see vdimm, vldt, vdd, vsb, and agp/pcie?
a program for it or connecting the read points of those chips to the windbond pins where it's used for -12, -5, v-aux, v-standby.
am i making sense? is it windbomd doing the v reads for those. If so, even a wire from vcore read point to vcore read pin of windbond would be great and and would show correct reading
can you do those mods. hope not asking too much or being stupid.:)
I've thought about adding fan speed control to the board by modding the winbond chip, but I've not had time to do anything yet. It should be possible to do mod the chip to read other voltages, but it will involve lifting some of the pins on the chip and connecting the voltage supplies to them.Quote:
Originally Posted by RimRam
I'll look into it when I get some free time :)
I ran into trouble.
After booting with Vcore Vdroop and Vdimm mod I coudnt acces bios nor could I flash the bios (flash.exe error)
Im afraid I used a to high Vdimm (3.4) and to low Vcore (default 1.4 and using the mod 10k VR, 1.55)
Im even considering a leg of the Vr came loose (bit of a blanc there)
I removed the Vcore and Vdroop mod to resolder them.
Doing so I accidently damaged the resitor (vertical R on the left) next to the Vdroop mod.
Can someone tell me its value?
Any change to revive it?
A Vdroop off 10k or even worse short cirquited results in?
Wow.
All these excellent mods are making me want to buy back the ASRock I sold.
Can you mark the damaged resistor on a picture of the board?Quote:
Originally Posted by Asio
If the Vdroop resistor was shorted, it should just give a lower (and probably unstable) Vcore. If the Vdroop resistor was set to 10k, the board would have given a very high Vcore. The board would probably have shut down through OVP before it could cause too much damage tho.
The res richt to the left of the circle, infact the circle just touches the resistor.
Using the Vdroop pic
I used the Vcore 1 mod to reach 1.7Vcore and was under the impression Vdroop only makes Vcore more stable not increases it.Quote:
If the Vdroop resistor was shorted, it should just give a lower (and probably unstable) Vcore. If the Vdroop resistor was set to 10k, the board would have given a very high Vcore. The board would probably have shut down through OVP before it could cause too much damage tho.
I did have the board running with only the Vdimm and Vdroop mod without a hitch. Can I cut out the Vcore1 mod and still use 1.55+ vcore?
Edit: I have to confess, I accidently solder the Vcore1 mod to the leg of the chip above it (arrow above just touches the chip named A2
Vr set at 8.5K and may verywell be the reason of my strange bios behavior. I experienced the same problem after flashing the bios early this weak so I took little notice of it, just sharing with you.
ps. Would this mobo be able to reflash my infinity B bios chip? (4mbit I think)
I am sorry to say that A2 is 11.2v and most probably surged thru the brown cap next to it, the mod res, the vref cap, and ended up in the regulator to the left, and cpu vcore to the right of it :( . Just do not turn on the power, and immediately unsolder. the first pic that you linked (w/ yellow circle marking) is actually a cap(brown color). It shouldn’t have caused no post (but maybe unstable). persivore, can he solder a cap (taken out of an old board) where he damaged the brown cap? Most probably it would work if same size and same shade of brown.
The A2 (11v-12v) is the concern here. Always check the soldering w/ magnifier and light. use wick to remove excess solder.
Persivore, I read a a few pages of winbond chip about the monitoring pins and how are input/output. External resistors and caps are involved and checked the board, compared the values given by winbond and the board's resistors matched. The pins are located in the long side facing edge of the board and bottom corner(toward AGP). I am thinking, if external resistorsand caps are used for this monitoring system, then might find soldering points for the mods thru. these smd's without lifting or touching winbond pins.Quote:
Originally Posted by persivore
The PDF files also has a guide how to software program these monitoring I/O in binary. maybe you can right a program for this board (similar to speedfan, etc) and sell it to us ;) just kidding, but seriously, can program it to existing software(shareware). But for know soldering Iron is our friend.
Here is The board 's winbond PDF. file.
http://www.winbond.com/c-winbondhtm/....asp?Pname=182
More severe then I thought!
I added a red arrow to the mistaken solderpoint and highlighted a few other components for clarity.
components
It is alread powered up in the past and unsoldered...
tnx for the suggestions everybody, for the instability problem...but my board died yesterday, so i'll never know what was the problem with these BSOD screens, and i'll propably never know what was the cause of death:(
anyway, what was the real objective of the vdroop mod? first i thought it was to decrease the vcore fluctations, but as i measured vcore and changed the VR value over 1k and under 1k, i never really noticed any changes, other than the changing vcore value itself! at idle vcore was always a little lower than at full load...but it didnt change durind full load (at least my cheap multimeter didnt track that)
Anyone is interested in vdimm mod poor man's way and no soldering involved,
check jonspd's thread over @ ocforum.
It's by "ochungry" called "easy vdimm mod". has to do w/ graphite and nail polish. check it out very intersting and apparanty works and very easy.
http://www.ocforums.com/showthread.php?t=440021
Anyone get a clock speed gain by doing the vdroop mod?
did the vsb, vldt, vdimm, vcore and vdd mod
the vdd mod isn't working.
When I decrease resistance it does nothing... At one point vdd will drop from 2v to 0,8V.
Any ideas? I took a screw from the motherboard as a grounding point.
The motheboard is in the case, so this point should be grounded....
Are you sure you have used the correct point for the mod? Can you get a picture of your mod?Quote:
Originally Posted by Flib