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this is a cool little board, but it definatly needs alittle push, if you want to make it really extreme for benching.
its kinda lacking on the Vdimm and Chipset voltages...
also its got the Droop problem, just like any other Intel board does.
I can post tons of pics of the board if anyones interested.
Could you post some pictures of the board please.
I just did about an hours worth of testing to find the VFSB, VDIMM and VGMCH Voltage read points.
testing was done, by just probing each voltage, to find the closest one to what I knew they were suppose to be... then seeing if changing the voltage in BIOS, changed the reported voltages.
a hour of trial and error and I believe I found the 3 main voltage read points.
Vdimm.
http://img148.imageshack.us/img148/8458/vdimmuj0.th.jpg
VFSB.
http://img148.imageshack.us/img148/9383/vfsbcq4.th.jpg
VGMCH.
http://img132.imageshack.us/img132/6049/vgmchje5.th.jpg
I have about a dozen more shots if these aren't good enough.
I do not have a macro lense, so this is the best I can do for close ups at the moment.
I have the board and I think this board need vdroop mod but not sure
you have vcore read point? :slobber: :toast:
thx :D
nope.Quote:
Originally Posted by d@rkn1ko
I wasn't even remotly curious for a Vcore read point...
my fan and heatsink, make that area near impossible to get to with a volt meter, when the PC is on....:(
How about soldering couple of wires to make that area external :)
come on, someones gotta be able to help....
hey my man kunaak, i dont have the oard with me. Whats the 8 leh chip near the vmch mosfet and the 8 leg chip beside dimm slot 4?
would they be the popular rt9214s?
heres the chips I could find with the 8 legs, in the areas you asked about.
I can get more pics if you need them.
just show me where. :D
by the MCH
http://www.xtremesystems.org/forums/...1&d=1153642442
By the Vdimm.
http://www.xtremesystems.org/forums/...1&d=1153642442
other one by the Vdimm.
http://www.xtremesystems.org/forums/...1&d=1153642442
kunaak, that MCH LD7120 chip, pin 6 resistance? VR to ground shd work.
the LD7120 chip below dimm slots should be for Southbridge i think.
The RT9199, near dimm, resistance of pin 3? VR to ground shd work, for ddr2 volts.
can you highlight the pins you want me to check?
I am not sure what you mean, when you say pin 3 and such...
http://resources.vr-zone.com/Shamino/kunaak1.jpg
http://resources.vr-zone.com/Shamino/kunaak2.jpg
that vdimm one may not be it and may be the other ld chip u stated....
Found the VDimm Mod.
http://www.xtremesystems.org/forums/...1&d=1153684338
And the Chipset Mod.
http://www.xtremesystems.org/forums/...1&d=1153684338
Thanks Shamino :)
now any ideas on the Vdroop or VFSB? ;)
Vdroop is what I am more interested in.
set 1.4 volts in bios, get 1.34 volts under load... not cool.
thx kunaak :toast:
nice work kunaak!
havent had much exp in moddin vfsb and even vdroop
i suppose vfsb shd be regulated quite near the socket. hwo about some pics of the chips near socket for vdroop as well?
Heres some more pics to help try and find a VDroop or VFSB mod...
http://img149.imageshack.us/img149/9...ightvs2.th.jpg
http://img82.imageshack.us/img82/585/1bm7.th.jpg
http://img82.imageshack.us/img82/707...areakm7.th.jpg
http://img149.imageshack.us/img149/9...cketju6.th.jpg
http://img82.imageshack.us/img82/594...sideel1.th.jpg
http://img149.imageshack.us/img149/4...ightny2.th.jpg
http://img82.imageshack.us/img82/116...ightwt4.th.jpg
http://img149.imageshack.us/img149/8...rea1ky2.th.jpg
http://img149.imageshack.us/img149/1...rea2kb6.th.jpg
Hope this helps.
I can do more, if some area catchs your attention or needs more detail.
if the pic is too small when you check it out, click on the actual pic.
if it takes you to its load page, then just go back, and then the pic will be its larger size.
I looked at the datasheet and there is a pin for vdroop... but i have no idea where to put the VR & what to connect it to... but it looks like it would be possible :D
Persivore if you can figure this one out i will worship you!!
:worship: :worship: :worship:
Can someone tell me whats written on the chip I've circled please. Could someone also try to get a close up picture of the chip so I can try to trace where some of the traces go.
ISL6312 is what is written on the chip... I will post some pics later tonight when i can borrow a good camera
Heres a pic of that chip.
For the Vdroop mod a resistor needs to be connected between the 2 points I've marked. It looks like these points are going to be too small to solder to, so some alternative points will need to be used.
The traces connected to the 2 pins appear to disappear to other layers of the board, so it isn't possible to trace them from the picture, so someone with the board will need to find alternative points to use.
To find alternative points, set a multimeter to a low resistance range (should be 200 ohms on most multimeters). Put one probe on one of the pins on the Vcore regulator and use the other probe to check the resistance between the pin on the Vcore regulator and various resistors/capacitors surrounding the Vcore regulator. Once you find a point which has <1.5ohm resistance between the Vcore regulator pin and resistor/capacitor leg, the points are almost certainly connected and can be used as an alternative solder point.
Edit: can someone also check the resistance between the 2 pins please.
what is the max vdimm and Vmch in bios? cheers. Thinking of getting this or DQ6
1.5v vmch
1.2+0.3
2.4v vddr2
1.8+0.6
1.5v vmch
1.2+0.3
2.4v vddr2
1.8+0.6
mch voltage is 1.2 volts to 1.45 or close.Quote:
Originally Posted by d@rkn1ko
Hmm, my MM shows 0.1V higher voltages for vcore, vdimm and vmch than they are in bios. Could it be that the board is overvolting?
I'll try this as soon as i get mine.Quote:
Originally Posted by persivore
Thanks.
this is interesting. but what does upping those do
1)vdimm
2)mch
3)FSB
1) Self-explanatory.Quote:
Originally Posted by tvdang7
2) Overvolting mch gains more FSB
3) Overvolting fsb shows little to no results.
Don't worry for now, since you have an A64.
Hi !
i woud like to make the mch mod but i have only a 10K Variable Resistor is this also possible ?
Regards
Roger
what's the stock vmch? 1.2v?
yes 1.2v :DQuote:
Originally Posted by irenic
i can do 400+ fsb on stock vmch. with my DS3...
dang i wanna mod mine but i hate voiding the warranty.
i actually should say i want our Alaskan friend to mod it lol i cant handle a sodlering gun on those small of point in that tight of a space. lol.
so these pencil mods.
i'd do them but one thing keeps coming to mind and that was the pencil mod for the P5Wdh2-E Prem. it limited my vcore to 1.5v
anyone tried the pencil mod to know if this limits your vcore to a certain amount? i cant do it if thats what happens. this baord already has enough voltage limits.
vmch pencil mod works, I did not see gains though, at least not yet, max on air 497 1.4-1.6vmch, under vapo 518 1.6vmch (this was minimum vmch after mod) - 1.8vmch
And note that if your FSB is overclocked Normal voltage = +.3V, so after pencil mod I had
Normal = 1.8V
+.1 = 1.6V
+.2 = 1.7V
+.3 = 1.8V
Vdimm somehow did not work, might give another try.
518 might be RAM limit although corsair D9 should do more at 2.4V and relaxed timings
normal vmch +3 is only 1.5v so you got a pretty big increase. considering its only a pencil mod.
i dont like pencil mods though
they arent stable, droop and fluctuations are still an issue
and as for vcore pencil mods those tend to be... well.. iffy.
i want to do the core droop mod but looking closely at the motheboard with a very small close up lense shows that there is already a resistor there.
i do not quite see how bpassing the resistor by solding over it will help droop/
kiwi you know more about this than i do.
can you provide any input into the vcore droop mod.
here is where i am getting the pictures.
http://sg.vr-zone.com/?i=3870&s=9
does mch actually have an effect on fsb?
I'm on stock mch and using +0.3v doesn't gain anything
Yeah, there is 2K resistor but I haven't tried mod yet. I have 0.02V drop at load. Shamino noted 0.05V drop which sounds quite a lot :eek:
Well, at least cpu cooling helps that is for sure
497 -> 518 (maybe more)
air -> vapo
Ofcourse some cpus can do more
Anybody can find the vcore mod , cause in bios after 1.6V it's 1.8V but's it's too much , i would like to have 1.7V :D
Thanks ;)
you might try doing the Vdroop mod, with a VR.Quote:
Originally Posted by misteroadster
sometimes, when you adjust the VR too much on Vdroop mod, the vcore, goes up alittle, instead of just stabilizing.
goes up like .3 in the case of my old Asus 955X.
after some tests, i'm not limited by the Vcore.
In fact i just need 1.45V to bench 1M @ 4500Mhz, i just need FSB, i think it's cpu related :/
i would like to test your 6600 530FSB approved under caskad :D
100% oc is my goal :)
Hi Guys,
When i read the vmch point i get 1.35v and it doesn't change when i up to +.3v in the bios. What could be causing this?
Which bios?
This has been resolved. I shorted teh cmos taking the reading and for some reason mch wouldn't move after that. Loading optimized defaults fixed it. It now reads correctlly
Has Anyone had any luck with finding the VFSB mod?
Kunaak you might be one of the few people who would know this.
wth does vFSB do anyways ? the NB controls the fsb and memory so why have mch (northbridge) and vFSB ?
so far the vFSB setting does absolutely nothing to improve overclocks from everything that has been tested thus far.
are you onto something that maybe we havent seen ?
also what would haven if i soldered, lets say a oh i dont know a 20k or 50k resistor without the POT. just tie in the little resistor ?
would that just fry it ? or would it overvolt it incredibly high because you adjust it ?
anyone thought about adding the missing CAP's to this board.
there are 2 caps missing right beside the vcore measure point. they both read vcore so...
there are also a few others missing around the place.
not sure if it would help but more caps definately isnt going to hurt.
persivore are you sure is pins 14(fb) and 16(vdiff) that need to be shorted/put a vr? I tried the vdroop mod on ds4(dont really need it, just for fun) it has ISL6307(6 phase) and the pins are 15(fb) and 17(vdimm). When I short them the mobo didn't start. It seems pins 15(fb) and 16(idroop) are connected on ds4 by the way.Quote:
Originally Posted by persivore
can someone tell where is ground pin for each mod????Quote:
Originally Posted by Kunaak
-edited to save on bandwidth, no need to repost pics that are already here.
-Kunaak-
I usually take it off a 3pin mobo fan headerQuote:
Originally Posted by doom_st
Thanks for the heads up on these mods guys! But I seem to be having some strange voltage readings with my board before and after mod.
With stock board, VGMCH voltages:
Stock = 1.31v ???
+0.1v = 1.17v
+0.2v = 1.24v
+0.3v = 1.31v
I checked this twice but still read the same! Not really really a problem now I know.
After mod: 20k VR set at 2.6k
Stock = 1.55v ???
+0.1v = 1.48v
+0.2v = 1.51v
+0.3v = 1.54v
Looks like my board has some issues, I wondered why I couldn't get any more fsb by raising VGMCH in bios (it was actually lowering it!).
Bios is F4, I've cleared cmos and loaded optimised settings and readings are still the same although I did notice before clearing bios the voltage used to fluctuate during startup.
The other wierd thing is if I remove the ground for the mod my voltages go real low:
Stock = 0.82v ???
+0.1v = 0.65v
+0.2v = 0.74v
+0.3v = 0.82v
The only thing I can think of is I had a real problem soldering the wire to the read point and could I have overheated/damaged the 3pin chip? Got it first time with the 8pin chip, best job I had ever done :D
Also it wont boot past 1.55v VGMCH
E6600, 4x1gb G.skill HZ, 120mm fan over zalman nbf47 northbridge cooler, testing with stock HSF. Max stock FSB boot at 365, after zalman + fan + 1.55v 410-420 fsb. Hardly worth fitting my vapo at this rate :( Only bought this mobo while I wait for the RD600! I had to get a conroe NOW!
any suggestions to whats up? or have I fubared my mobo within 24hours :D
bt
are those mods valid for the 965p ds4?
sorry for my bad english
Where to measure the Vcore?
would these mods work for Gigabyte S3 board?
That is what i was wondering too.
yes the s3 is the same as ds3 except for different cap type and up until rev2 ds3, different nic.
Sorry to bring up an old thread, but is the conductive ink pen Vdroop mod stable, or it's best to not do the mod?
Never had to mod my DS3 to hit 540+ FSB, guess I was lucky. Nice thread though and rather helpful if I ever wanted to go for 600. I'd say avoid all mods if you can as they will void your warranty.
I'll try to, but my dream of 100% OC might be hanging in the balance of mods and things.