TCCD and high voltage mystery explained

[ryanpgroovy]

Alright after a few in the lab we figured out the awe inspiring mystery of TCCDs that do well with higher voltages

It appears that samsung made some minor die revisions and that newer production chips do perform better with high voltages


I pulled about 20 current production OCZ-PC -3200 plat rev 2 and put the booster to them , from 2.8 to 3.1 volts showed no peformance improvement
from 3.1-3.6 we were able to run between 466 and 480 at 2-2-2 memtest stable and 510 and 550 2-3-3 memtest stable , with a fan running over the modules

These are current production parts and it seems that we have been shipping these chips to retailers for about 2 weeks

keep in mind we only saw a diference at 3.1 volts and above ,

I would guess most TCCD products produced in the past 3-4 weeks should respond the same .. but thats a guess based on initial testing


oh yeah , heres a quickie screenshot at 3.3 volts

[eshbach]

sounds good,

do these sticks clock any higher at 2.5-3-3 with 3.4v? could we possibly see 320 1:1 2.5-3-3 with high voltage?

[ryanpgroovy]

I have not had time to play that in depth , but I would bet that with higher voltages they do better at all timings.

[lalPOOO]

You scared me there for a second, I thought that was 1mb super pi

You guys at OCZ are too much, keep it up

[Nanobot]

Thank you for solving the TCCD mistery Ryan


Are the late production OCZ TCCD the ones with the new OCZ badge on the HS ?

The HS on mine are just the regular OCZ stamped units.

[ryanpgroovy]

Just trying to post up a quicky .... no time for real benchmarking in my busy day

[ryanpgroovy]

Its hard to tell when exactly samsung changed the die , I do know the chips were using to build now are the same batch we have been using for 3 weeks at least.

[Dissolved]

Anyways to get a 1gb set of this memory with the newer dies?

id gladly pump 3.4v~ to get 280(560ddr) cas 2.5

[trans am]

Its hard to tell when exactly samsung changed the die , I do know the chips were using to build now are the same batch we have been using for 3 weeks at least.

What is the ram that Tony mentioned that does 2-2-2 at 260mhz? was that just a new tccd that got lucky? Or is there some serious brewing in the ocz LAb?

[saaya]

wow thx a lot for soending so much time on solcing this riddle!

id recommend you to find out what chips respond well to high vdimm and put a new sticker on that ram

[TEDY]

so better wait a week or two so all new ram is new samsung die

what ram mostly likely then ?

mushkin/ocz/gskill ?

i really want high voltage tccd cause i have 3.3vdimm available on my DFI NFII

[ryanpgroovy]

The betas tony have are not TCCD ....

hopefully people will buy lots of ddr boosters with all this new voltage lovin .....

[trans am]

[QUOTE=ryanpgroovy]The betas tony have are not TCCD ....

A new mystery ic that isn't TCCD that does 260mhz+ at 2-2-2. Everyone get your checkbooks ready!

[STEvil]

heh.. wonder if they have another "shift point" higher up?

[TEDY]

damn i smell a big xmas surprise from OCZ

DDR 600 2-2-2-5/11 3.3Vdimm TCCD OWNAGE

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and wake up with PC2100 nanya ram LOL

[Dissolved]

The betas tony have are not TCCD ....

hopefully people will buy lots of ddr boosters with all this new voltage lovin .....

Have you tryed better cooling on these?

IMHO i would like to see some Heatsinks, water cooling possibly?

my EB burns me when i use 3.0v and testing when memtest last night the heater in the house came on cuz its cold in calif at night this week, and seconds after i started getting errors (it was on the 34th run of test5) so it was heat related im 99% sure.

i would like to pull the spreaders off and add some sinks or something else, but i wouldnt wanna kill the warranty if i havent allready by excideing the voltages..

[STEvil]

use a fan.

[iboomalot]

if I could get some 1:1 DDR 600 stable ram at 2-2-2-5-T1 I would spend 400.00 on a pair without blinking. I wonder what my OCZ 3700EB would be worth if this happens??

[trans am]

Have you tryed better cooling on these?

IMHO i would like to see some Heatsinks, water cooling possibly?

my EB burns me when i use 3.0v and testing when memtest last night the heater in the house came on cuz its cold in calif at night this week, and seconds after i started getting errors (it was on the 34th run of test5) so it was heat related im 99% sure.

i would like to pull the spreaders off and add some sinks or something else, but i wouldnt wanna kill the warranty if i havent allready by excideing the voltages..

Maybe OCZ should make a new heatspreader for this new High voltage ram. Maybe something with fins that dissipates heat better? or maybe a windtunnel design that surrounds the dimms with a fan at the top?

[WeStSiDePLaYa]

damn, so can we say yet this stuff is officially better that bh-5? i think so.

[trans am]

damn, so can we say yet this stuff is officially better that bh-5? i think so.

As soon as my mushkin comes, I'm putting the BH5 on Ebay before this info gets leaked onto every forum.

[Dissolved]

use a fan.

common sense yes, But even at stock speeds at 2.8v they get pretty warm in a cold room in the open air.

What im Saying is, From what ive seen, memory is getting more power hungry and Might benifit from better Cooling Support.

Problem is tho, memory Dimms are so close together heatsinks make this impossible.

Im on my DFI, i use dimms 1 & 3 so i have a 1/2" area between the memory dimms to allow me to do something. Fan is OK, but fans wont truly disspate all the heat from the memory..

[WeStSiDePLaYa]

well i know i have good airflow and i get a 80mm fan right over my dimms and my ram stays pretty chilly.

but wow, i really want to get some of this BH-5 killers in my rig.

[Ubermann]

I have been trying mine up to 3.8 Volt, after that computer crash.
From what i notice is that Cas2 will gain most of the boost from higher volt.
~3.5Volt seems to give most boost at Cas2.
Cas 2.5 runs best at 3.1volt.
Cas 3 dont like above over 3.0 volt.

I think it is this way, have only noticed after messing with a booster.

[Sauro]

What a wonderful time to be building a new comp