View Full Version : Tccd @ 3.3v
Is that safe? :confused:
Well, I have the same memory modules as in this (http://www.xbitlabs.com/articles/memory/display/gskill_2.html) review at XBitLabs, and they reach 333Mhz 2.5-4-4-8 2T @ 3.3V!!! :eek:
I tried to give mine ones 3V and they didn't even boot, even at 290Mhz. (They do 315Mhz 2.5-4-4-6 1T @ 2.95V)
Why do you think their modules can run at so high voltages and mine ones can't even boot at 3V?
And mainly, how do those memory sticks survive? :eek:
mr_knowitall15
11-02-2005, 10:17 AM
probably because from what ive read, TCCD doesnt need or like high volts. They are probably using something like OCZ VX or the Mushkin Redlines. Whatever chips those use DO like high volts, like 3.6ish :D
ahmad
11-02-2005, 10:20 AM
It might give you a performance increase, but only for a very short time. I am talking within a week. You will slowly kill the ICs and they will no longer work at cl2.5. Heck 2.8v for 24/7 usage kills TCCD.
Maximum they can handle according to Samsung is 2.7v. Performance of TCCD is based on 2 things: voltage and temperature (timings matter too of course). If you can't keep them below 40*C, I'd say don't even run them above 2.6v.
According to samsung, they perform best at 0* and 2.7v. Very few people know how to or can keep memory at 0*.
Actually my sticks are @ 2.9V and 36º right now...
Aphex_Tom_9
11-02-2005, 10:22 AM
also, they were on 2T, which can give you a lot more mhz, but cuts into performance
ahmad
11-02-2005, 10:22 AM
Is that full load? I am talking after an hour of BF2 or something similar?
Celcius
11-02-2005, 10:26 AM
My Patriot +XBL uses tccd and I run them 24/7 at 2.88v with no problems.
They're actually rated by Patriot for 2.9v.
also, they were on 2T, which can give you a lot more mhz, but cuts into performance
I tried it, but only gave me kind of 2Mhz, and pretty much the same with CAS3...
HousERaT
11-02-2005, 10:34 AM
Running 3.3v through your TCCD chips will guarantee they die a quick death. I wouldn't run 3.3v through TCC5 which is a little better with voltage than TCCD. If you're that hard up for high voltage ram do yourself a favor and invest in some UTT or bh/ch memory. :2cents:
For 24/7 most likely not safe. Most TCCDs do not like high volts. My oczs are already hot @ 2.9V. There is a rather high probability that without proper cooling your Tccds would fry/die @ 3.3V after some time.
I know. I'm talking only for benchmarking and with a coupple of fans over them.
Don't do it. :nono:
It's not worth it, you won't gain anything and it will definately kill your RAM.
I killed some with only 2.86V and a fan blowing over them.
TCCD is rated for 2.6-2.7V no matter what RAM manufacterers might rate 'm for.
Yesterday i tried to stabilize my TCCD ram for a 32M run at 314MHz and upped the voltage from 2.86 to 2.9V, it didn't even boot.
Then i lowered to 2.8V and it was stable where it wasn't at 2.86V :)
it was discussed very often - no need for high voltages on TCCD chips.
senseless even for benching - you won't gain anything.
check if they even scale with 2.9V - I don't think so ;)
Actually mine ones do 315Mhz @ 2.95v, but they don't at any lower voltage.
Evil_Spork
11-02-2005, 11:47 AM
gskill told me 3.1v was the max safe volts for tccd. i didnt read the thread just first post.
Vapor
11-02-2005, 12:05 PM
It varies by stick, but it's a good rule of thumb to just stay away from >2.9V if you want your sticks to last.
Jochenp
11-02-2005, 12:26 PM
My sticks are using 2.85v for a year now, nothing happened to them.
Revv23
11-02-2005, 12:38 PM
from what i remember of OPB's TCCD results certain week IC's will handle voltage much better then others, some like it, some dont.
i think 3.3v is to much in either case.
Vincentvega18
11-02-2005, 12:52 PM
Running 3.3v through your TCCD chips will guarantee they die a quick death. I wouldn't run 3.3v through TCC5 which is a little better with voltage than TCCD. If you're that hard up for high voltage ram do yourself a favor and invest in some UTT or bh/ch memory. :2cents:
TCC5 is just unbinned tccd. If it helps and makes you happy, do it. People do it with cpu's :D
Celcius
11-02-2005, 03:50 PM
I think to determine your voltage you should look at your pcb. My tccd ram has brainpower pcb's, I think that's why they're rated for higher voltages than regular tccd.
brandinb
11-02-2005, 03:53 PM
where is the proof that tccd will die with 3.3 volts??? havent seen one case personally
ive also seen just as much tccd die at 2.7 volts as die at 3.0 volts seems dying ram is random or doesnt depend on voltage.
anybody seen some dead tccd from 3.3 v????
ahmad
11-02-2005, 04:59 PM
where is the proof that tccd will die with 3.3 volts??? havent seen one case personally
ive also seen just as much tccd die at 2.7 volts as die at 3.0 volts seems dying ram is random or doesnt depend on voltage.
anybody seen some dead tccd from 3.3 v????
I have seen 5 cases where they died at 2.9v. I have also seen TCC5 die from 3.1v (a friend of mine tried it). Didn't take more than a week.
From the above result its obvious that they would die at 3.3v. A given result.
OPB says some weeks like voltage better than others, but to me that is vague. You try it at your own risk and you kill your sticks with your own hands. I find more voltage just generates more heat and makes my sticks perform slower.
sin0822
11-02-2005, 05:11 PM
iv been running mine at 3.2v for about 3 months now, and my comp is on 1-2 hours a day.
haPpydUde
11-02-2005, 05:12 PM
I ran my rev.2 ocz tccd, at 3.3v+ for a while (months) cause they LOVED the voltage and continued to be that way till one stick died. Since then I have been less stupid, so I am proof that high volts kills tccd.
Westley
11-02-2005, 10:44 PM
there is no point running it over 2.9v daily unless u really wanna made a suicide of ur ram.
well, some yr 05 tccd might able to handle bout 3.1v but not all...
some case show tat yr 04 tccd can't handle even 2.9/2.85v and if more than that, u kill it.
for mine experience, even doing a 2.9v won't help to stable it...
only the ram timing will help made it stable.
i hv 1 off topic question still not clear:
tccd can run 2-2-2-5 @ 200mhz.
but why my Gskill FC 440 tccd can't run 2-2-2-5 @ 200mhz, it gave me more than 1k error of memtest86+ #5d.
and the situation is same wif my friend.
after all, i found out only 1 stick can't do 2-2-2-5 @ 200mhz of the pair 1 get.
poiuy223
11-03-2005, 02:27 AM
04 tccds like more voltage than 05. that is why 431, 437, 440 overclock extremely well with about 2.9v-3.0v. 05 gives errors when pumping too much.
not all tccd can run 2-2-2-5 @ 200mhz. that is why it still requires speed binning. that doesnt mean that if it cant do 200 2-2-2-5 it sucks. it can still have the possibility of runnin 300 2.5-3-3-6.
Would you guys take my GSkill sticks' heatsinks off?
They are the new FR, with the yellow heatsink.
And if so, how should I do it? I tried it with a coupple of OCZ Platinum and left it, cuz it was pretty much difficult than what it was with the ISH of my Sandy...:P
[XC] Jaco
11-03-2005, 04:06 AM
I wouldn't go over 2,9v
I have one defective TCCD stick , probably caused by excessive vdimm.
It still runs CAS2 , only CAS2,5 gives an instant BSOD.
viddax^2
11-03-2005, 04:12 AM
POL, don´t give tccd sticks that Vdimm never... I tried 3.1V with my Gskill LE and didnt gain anything apart from heat and less stability.
OPB told once, the best max Vdimm is 2.75V, no need of more Vdimm to max out the RAM.
Saludos!
Westley
11-03-2005, 08:41 AM
but is kinda hard to get that accurate voltage...
for mine it like 2.8v...
and always got 2.8v not matter what speed...
other than 2.8v, e.g. 2.7 or 2.83, it won't run stable...
HousERaT
11-03-2005, 10:22 AM
I purchased a pair of GSKill LE sticks which were used. The user neglected to tell me the sticks required 3.2v to run. They wouldn't even boot unless I used 3.2v. Since I couldn't even get them to boot with stock voltage I had to RMA them. Trust me. If you want to kill your TCCD run them with high voltage 24/7. You might not kill them but they won't be the same after long.
brandinb
11-03-2005, 11:23 AM
haha after all theses reports i believe you guys
the reason i belived that is my tccd died at 2.8v!!!!! after that i returned them for a refund.
2.8 volts is not too high it is the specified voltage for that ram wtf!!!!
haha i had really good tccd too i could bench at 315mhz 2.5-3-3-6 on my sandiego and could do 310 2.5-4-3-6 on my winnie!!
I know, and I'd never give them more than 2.9v. ;)
But my question is...
Would you guys take my GSkill sticks' heatsinks off?
They are the new FR, with the yellow heatsink.
And if so, how should I do it? I tried it with a coupple of OCZ Platinum and left it, cuz it was pretty much difficult than what it was with the ISH of my Sandy...:P
THNX!!
Harshal
11-04-2005, 01:24 AM
Well I was also curious abt the Voltas to feed my OCZ Plat for 300HTT... but think will stick to 275 @ 2.6V then to go beyond 2.7V for 300....
Nice Vdimm info in here for who wants push their TCCD/TCC5. Thank You guys!
vBulletin® v3.7.0, Copyright ©2000-2008, Jelsoft Enterprises Ltd.