I'll try these charlie and the second vdimm. Not sure what would be different between the one I tried and tams. What size vr for the vcore
I'll try these charlie and the second vdimm. Not sure what would be different between the one I tried and tams. What size vr for the vcore
That first one is the one that doesn't work. Has anyone done that hard sodder successfully? Confused now.
What's the highest RAM frequency you guys can run on this board at 2:1?
I top out at 228MHz @ auto V.
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I e-mailed Mushkin about my problem and this was their response.
"Well I was looking at numerous forums and it looks like your chipset is topping out ( this is across different motherboards and manufacturers the only similarity being the K8T800 chipset) at 231 at the highest, some are going only 224 while still others are topping out at a meek 213. It does not seem to be a limitation on the memory, but on the board. Mind you I did not see any stats on the overclocking of that board, though as I said earlier I have a feeling that it is a chipset limitation."
Is this true?
so is he saying that a 5k vr set to 2.15 or the original is 2.15 and set to 5k for the mod? I wonder if this mod really works. That's a really tight sodder point.
I think you're OK....you're at 228 with only 2.6V (auto)??? that's good! Just wait til you shove 3.2V through it!!!Quote:
Originally posted by nycxandy
What's the highest RAM frequency you guys can run on this board at 2:1?
I top out at 228MHz @ auto V.
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I e-mailed Mushkin about my problem and this was their response.
"Well I was looking at numerous forums and it looks like your chipset is topping out ( this is across different motherboards and manufacturers the only similarity being the K8T800 chipset) at 231 at the highest, some are going only 224 while still others are topping out at a meek 213. It does not seem to be a limitation on the memory, but on the board. Mind you I did not see any stats on the overclocking of that board, though as I said earlier I have a feeling that it is a chipset limitation."
Is this true?
C
That second Vddr is a b*tch. you have to unsolder a sm chip and stand it on it's ear to solder a wire to it.... youch! Similar to HiPro5's IC7 mod.
I think the parantheses are showing the original value of the SM part.
My GUESS would be to start at 2.15K Ohm resistance and increase in small increments and watch Vddr.....????
May be easier with a fixed resistor!
C
No thanks. Jeeezz! I like your find another chip method better. ;)
Well, this memory is rated at 250 @ 2.8V max. I've tried using 2.8V with 229 and it still wouldn't budge.Quote:
Originally posted by charlie
I think you're OK....you're at 228 with only 2.6V (auto)??? that's good! Just wait til you shove 3.2V through it!!!
C
BTW, I've tried each stick individually and they both perform the same, topping out at 228. So both sticks are the same.
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And to the Mushkin statement above... It seems like Anandtech was able to run the Samsung PC4000's up to 245.
"We were able to reach overclocks as high as DDR490 at 2.5-3-3-10 timings with Samsung PC4000 on the Asus A8V Deluxe. However, we were not able to reach the specified DDR500 speed on the dual-channel Socket 939 Asus A8V Deluxe."
http://www.anandtech.com/memory/show...ml?i=2082&p=14
More or less same here. I'm not convinced these locks are doing anything and frustration is setting in fast.
Oh, ok..... I should have looked more carefully at your sig.... I thought you had Mushkin L2 BH-5.... That seems more like an Intel "lovin'" ram.... let us know how it goes!Quote:
Originally posted by nycxandy
Well, this memory is rated at 250 @ 2.8V max. I've tried using 2.8V with 229 and it still wouldn't budge.
BTW, I've tried each stick individually and they both perform the same, topping out at 228. So both sticks are the same.
C
Charlie, that Mush 2 is exactly what I have in there right now. No ceiling difference whatsoever between that and my XL's. That's why I doubt the lock. Also I just tried the #1 vdim mod again and I set it for the exact same voltage as what my 2.8 bios equals (2.87 overvolts) and it boots but then freezes going into windows, so the mod itself seems to be "F"ing with the board somehow, not so much the voltage. I'm stumped on this one.Quote:
Originally posted by charlie
Oh, ok..... I should have looked more carefully at your sig.... I thought you had Mushkin L2 BH-5.... That seems more like an Intel "lovin'" ram.... let us know how it goes!
C
Guess it's time for some experimentation on the Vddr mod....
Now I'm FAR from an electrical genius (god knows) but what if we remove the surface mount resistor in version2, and just replace it with a fixed resistor, let's say 5K ohms..... if the Vddr power comes from 3.3v rail, it can't damage ram, just push it to 3.25v or so....
Here's what I think about v2 mod. It's like Hipro's IC7 Vddr mod, you replace a resistor with fixed resistor and also solder in a VR. It gives a much more stable Vddr mod....without fixed resistor, it used to bounce 3.20v-3.28v, 3.18v, 3.26v, etc..... after adding the extra fixed resistor, it was like 3.26v-3.28v....
So if someone replaces the 2.15Kohm with a fixed 5Kohm, it should max out the 3.3v rail....possibly unstable....but adding a resistor would give the stability.
Or do it like this: with a 2kohm fixed AND the 5K VR (just like a IC7 mod)
My interpretation is that with the R422 inserted upright that they did that so that adding the 5K would put the resistors in series versus parallel -- parallel being standard practice when adding a VR to an IC or to an onboard fixed resistor.
To me, it would be better to remove R442, solder a 2.15 fixed resistor to one leg of our VR and soldering the other leg of hte fixed to the solder pad. Then solder the free leg of the 5K to the other solder pad.
Also, with the method of adding the 5K in series, you would have to set it to zero ohms before hand as it appears that we are increasing the resistance in this circuit in order to affect the Vdimm.
charlie is right, the values in parens are the onboard stock values.
Are there any 8 pinned SC1211 ICs in the area around the Vcore Vreg?
The SC2643 has the standard FB pin (#7), but also tied to Vcore is pin #6. The Vcore Vreg has a "Differential Pair for Remote Sense" when related to Vcore. Pin #7 being Vcore+ and #6 being Vcore-. I would still say modding #7 is that way to go and doesnt vary from basic practice.
charlie, can you check the mod location shown in the Vcore pic to see if there is connectivity to pin #7 on the Vreg? I am pretty much positive there will be and they chose the mod location mainly because soldering to the uber tiny pins of SC2643 would be suicide.
You could be right...since I havent worked on this board and the mods are pretty new.Quote:
Originally posted by charlie
Guess it's time for some experimentation on the Vddr mod....
Now I'm FAR from an electrical genius (god knows) but what if we remove the surface mount resistor in version2, and just replace it with a fixed resistor, let's say 5K ohms..... if the Vddr power comes from 3.3v rail, it can't damage ram, just push it to 3.25v or so....
Here's what I think about v2 mod. It's like Hipro's IC7 Vddr mod, you replace a resistor with fixed resistor and also solder in a VR. It gives a much more stable Vddr mod....without fixed resistor, it used to bounce 3.20v-3.28v, 3.18v, 3.26v, etc..... after adding the extra fixed resistor, it was like 3.26v-3.28v....
So if someone replaces the 2.15Kohm with a fixed 5Kohm, it should max out the 3.3v rail....possibly unstable....but adding a resistor would give the stability.
Or do it like this: with a 2kohm fixed AND the 5K VR (just like a IC7 mod)
But, if the idea is to raise the resistance to raise the Vdimm...then going by your pic would lower the resistance.
Either way, try it your way and see what happens...it cant hurt anything.
What's the highest you can run your Mushkin Level II's and Corsair XL's at 2:1?Quote:
Originally posted by xgman
Charlie, that Mush 2 is exactly what I have in there right now. No ceiling difference whatsoever between that and my XL's. That's why I doubt the lock. Also I just tried the #1 vdim mod again and I set it for the exact same voltage as what my 2.8 bios equals (2.87 overvolts) and it boots but then freezes going into windows, so the mod itself seems to be "F"ing with the board somehow, not so much the voltage. I'm stumped on this one.
hell Fire,
Yeah, you got that right! There's a SC1211 right next to the Vcore mod area...
tell us more :D
I changed my MSpaint image above reflecting your recommendations, look correct?
C
Okay....update.
The 1005.21 is definitely more stable. It seems to have eliminated the random "flakiness" I was getting when using the PCI/AGP locks.
260HTT is a breeze now...no doubt at all the locks work. 3D2001SE has no issues looping at that speed.
I'm off to get the Clock Gen and SetFSB apps and try some serious OCing.
BTW, any links for those apps? Can someone lend a hand asap?
Also, I'm still working on the volt mod. First one didn't work. I'm gonna try one of the other methods pictured here...
mdzcpa,
for the sake of completeness, can you list your mobo number, for example mine is a OJ3276
and is that 260 1:1??? (or 2:1 whatever)
I think I posted the serial number earlier in the thread, but :
45MGOJ2879
The 260HTT is not 2:1 (1:1). My Corsair XL won't get there with any kind of decent timings and my stock 2.8v. The best she can do at 2.0-2-2-5 @ 2.8v is 225. Above that and until 250 it needs 2.5-3-2-5. I haven't tried for more as I am not interested in looser timings than that.
I NEED VDIMM!!!
Excellent! With your gear, when are you gonna' lay down some 33-34K 3DMark01 action :DQuote:
Originally posted by mdzcpa
I think I posted the serial number earlier in the thread, but :
45MGOJ2879
The 260HTT is not 2:1 (1:1). My Corsair XL won't get there with any kind of decent timings and my stock 2.8v. The best she can do at 2.0-2-2-5 @ 2.8v is 225. Above that and until 250 it needs 2.5-3-2-5. I haven't tried for more as I am not interested in looser timings than that.
I NEED VDIMM!!!
C
can you test out to see if that rams good for 260~265 2.5-3-2-5? 250 2.5-3-2-5 2.8vdimm's the best ive seen out of the XL so farQuote:
Originally posted by mdzcpa
I think I posted the serial number earlier in the thread, but :
45MGOJ2879
The 260HTT is not 2:1 (1:1). My Corsair XL won't get there with any kind of decent timings and my stock 2.8v. The best she can do at 2.0-2-2-5 @ 2.8v is 225. Above that and until 250 it needs 2.5-3-2-5. I haven't tried for more as I am not interested in looser timings than that.
I NEED VDIMM!!!
Yeh, that looks right.Quote:
Originally posted by charlie
hell Fire,
Yeah, you got that right! There's a SC1211 right next to the Vcore mod area...
tell us more :D
I changed my MSpaint image above reflecting your recommendations, look correct?
C
Just to orient it to the pic on post #6, the fixed resistor leg would be soldered to the top pad and the VR leg to the bottom pad.
I was just asking about the SC1211 as there is usually a cluster of those connected to the SC2643 IC.
charlie, can you do a connectivity test from R167 to pin #7 of SC2643?
Anyone attempted the Vddr yet?
Aircool no Mods KHX3200.
http://pageperso.aol.fr/misteroadster/32sec+Aircool.JPG
yes, sir....both sides of r167 connect to leg 7 sc2643Quote:
Originally posted by Hell-Fire
Yeh, that looks right.
Just to orient it to the pic on post #6, the fixed resistor leg would be soldered to the top pad and the VR leg to the bottom pad.
I was just asking about the SC1211 as there is usually a cluster of those connected to the SC2643 IC.
charlie, can you do a connectivity test from R167 to pin #7 of SC2643?
Anyone attempted the Vddr yet?
Thanks for the fast reply.
Thats an easy enough Vcore mod then.
Now back to Vdimm.