TCCD and high voltage mystery explained

[Jesus]

A bit OT but there was talk bout the design of the Hetaspreaders my idea is following on to the stock HS you apply Heatsinks, copper heatsinks, or to be precise REVOLTEC RAM Heatsinks ultra thin finns and there bout 2,5-3cm high (1-1 3/4inches), tohose on to teh psotiton of teh chips and a fan ove rthem. Killer!ASAP i finish the project of applying my old Alpha Heatsink onto the NB i'll try this trick out

[STEvil]

431 or better would be my guess. Does samsung only have one factory that makes TCCD? Maybe one is making better chips than another if they have two or more?

[trans am]

431 or better would be my guess. Does samsung only have one factory that makes TCCD? Maybe one is making better chips than another if they have two or more?

Ok guys, I got it. But I've been posting in a different thread. Instead of taking up 2 threads, I'd like you to just click here and read:
http://www.xtremesystems.org/forums/...7&page=7&pp=25


SO far no good! and it's the same date from 431



I tried all the tests at 1T and got really bad results. Is tccd doing high speeds at only 2T or should this ram do it all at 1T?

**update, this ram won't even run it's advertised timings of 2-2-2-5 or 2-2-2-6 1T. at 2.8v. it will run these timings if I run it at 166mhz only. WTF! I either killed it with the volts, or it was DOA to begin with.

[Revv23]

yeah i dunno i think ill hang onto my BH-5 a bit longer, at 3.1vdimm these little KHX3000's run 240 2-2-2-5...

i need an A64 rig and a ram booster man, im tired of not being able to push these things...

(note - i cant break 240 period, not even with 3.3v, not sure whats holding me back, either proc, mobo or my PSU... who knows...)

[saaya]

ask the ocz guys

they tested a bunch fo tccd and should be able to tell you what tccd seems to like volts more than other

[trans am]

ask the ocz guys

they tested a bunch fo tccd and should be able to tell you what tccd seems to like volts more than other

There is still something wrong here.
I looked at some gskill 3200 2-2-2 tccd and noticed it has the same 431 date and K4H560838F code. I really think there is more to this than just the date and the ID code. The answer must lie in the last set of small code on the bottom of the ic. The ones that nobody can seem to read.

here are 4 different ram pictures showing TCCD from 431. the 2nd to last one is the one that Colin reviewed. What do they all have in common?
What are their differences? Did anyone notice that the last code on mine they are all different? But notice the kingston(2nd one) all the numbers match.

[TEDY]

damn transam that sux

i might not order mushkin then...

[trans am]

damn transam that sux

i might not order mushkin then...

It could be that I just got bad ram from the beginning. It wouldn't even work at ddr400 @2-2-2-6 So i'm thinking it was just DOA. Or I fried it by running 3.3volts into it. But I thought TCCD will take up to 3.6v, so I'm leaning towards the DOA assumption. I'm going to call newegg and get another set. I noticed the prices dropped on them. In past experiences this ususally means they got a new shipment and the supply is great, so the prices are lower from the distributors.

[HKPolice]

Uhhh.. BH5 is rated for upto 3.6v, not TCCD.

[georgesod]

So isn't anybody out there with good results @2.2.2.5?

[trans am]

Uhhh.. BH5 is rated for upto 3.6v, not TCCD.

Westsideplaya posted a chart from Samsung earlier that said TCCD also is supported up to 3.6v. Uhhh..

(quote from westsideplaya)
some more info to help decode some product stepping. not sure how usefull this is.
http://www.samsung.com/Products/Sem...fo/DDR_code.pdf

EDIT: some more really giberish stuff. mentions slew rates. hopefully someone can put this stuff to use.
http://www.samsung.com/Products/Sem.../k4h56xx38f.ibs



also good news. says max voltage is 3.6v

[TEDY]

link doesnt works

[berk]

Are you taking into consideration the PCB design with these chips too?
There was a post about the Brainpower PCB design maybe a month ago,OCZ rev.2s had a
great advantage over other kits tested with the same TCCD chips.

http://www.legitreviews.com/article.php?aid=53&pid=3

[trans am]

I just got off the phone with mushkin. They are going to see if they can find the latest batch of ic's they got form Samung and do a test. I told them about my problem and we talked about the batch numbers(last row of numbers) it looks like kingston does some very labor intensive picking if all the batch numbers are identical. I wonder if OCZ has same batch numbers on the ics or if they are different like the mushkin/

[TEDY]

what do you mean about kingston...cause that deal 265 - 45$ is really great...tempting hehe

[trans am]

what do you mean about kingston...cause that deal 265 - 45$ is really great...tempting hehe

look at the bottom row of codes. This is the batch number. notice they are all identical. now look at the batch numbers on the other TCCD. they are all different. Kingston doesn't use brainpower pcb, but at that price with the rebate, I think it's worth it.

[TEDY]

yep kingston has all the same thanks for pointing it out...

[quicksilverXP]

Does all the same batch code really affect performance?

[trans am]

Does all the same batch code really affect performance?

that's what we are trying to figure out. I think the point is that picking the same batch number is very labor intensive and if the same batch number didn't matter, then why go through the hassle of sorting through them?

[duane26]

Hello to all, I to have currently been looking to get some new memory and was curious about getting the new TCCD chips so I emailed OCZ and this is there reply" Both the 3200 and 3700 use TCCD yes…they are speed binned differently that’s all.We have been using the high voltage loving TCCD for a few weeks now….;-)Tony" So all we have to do is find some 3200/3700 that was shipped in the last week, right? Probobly easier said then done but its worth a try

[WeStSiDePLaYa]

Uhhh.. BH5 is rated for upto 3.6v, not TCCD.

yes it is, please do your research. or at least read the whole thread as i posted this info.

and yeah maybe the chips with the new die revision dont have any different markings? tccd sure does seem to be a mystery.

[duane26]

Sorry, I have read the entire thread just not today. I have been reading so much stuff on the web it sometimes makes my head spin Anyway, this is a mystery and the powers that be, that know, aren't telling so in the end it seems to be a "crapshoot" at best. I do think there is a better chance in getting the stuff in ocz then say munchkin.

[JDizzle]

I think someone stated in the other thread that Mushkin uses "new" brainpower PCB, could that be it?

[berk]

Thats what i wondered earlier on inthis thread,no one seems to have taken up on it,or it's moot.
I'm still in the dark,maybe its the pcb's, maybe its a certain kind of ICs.
Maybe both?

[trans am]

Thats what i wondered earlier on inthis thread,no one seems to have taken up on it,or it's moot.
I'm still in the dark,maybe its the pcb's, maybe its a certain kind of ICs.
Maybe both?

Well I talked to ryan at ocz today and he said they had some dates from 440 and 431. They were both a mixed bag as far as the volts go. He mentioned something about testing the high volt ones and setting them aside so they can relabel them, maybe a pc3200LL rev. 3 is on the way?