TCCD and high voltage mystery explained

[WeStSiDePLaYa]

geforce, im not even going to start on how messed up that is.

and yeah. get a booster and push the volts. remember these chips are safe to 3.6vdimm.

[Geforce4ti4200]

most dont respond to volts and me and eshbash know theres 25fsb gap. why not just run 2.5-3-3-7 at 291fsb like eshbach is getting now all on the low 2.8v? whats the need to use high volts when 2.8v does? you want tight timings, thats what bh5 is for, but then you most likley wont hit 291fsb

[SPiKE]

Something is strange to me... I've tested two different pairs of TCCD on my nForce2 system.

They performed different. The Corsair XL reached 250MHz 2-2-2 with 3.3v of vdimm. On the other side, the PDP Patriot XBLK reached 260MHz 2.5-3-3 (they just didn't wanted to work at CL2 after 220MHz) with 2.9v of vdimm. Over 3v on the Patriot, the system turns unstable.

[STEvil]

different batches of chips on each

[TEDY]

so which ram then ...OCZ/MUSHKIN ? CORSAIR XL ?

i want also 250@2-2-2-11 3,3vdimm TCCD

[WeStSiDePLaYa]

so which ram then ...OCZ/MUSHKIN ? CORSAIR XL ?

i want also 250@2-2-2-11 3,3vdimm TCCD

right now i would say mushkin is your best bet. ocz still hasnt told us if they will revise the naming of the rev2 plats so i wouldnt take the chance of getting the older crappier tccd.

[uwackme]

Anyone checked a BEFORE / AFTER to see what ID numbers are on the actual chips? Surely some outward marking would tell which is which?

I'd luv to find 4x 512M sticks that run 250Mhz @tight...together in a 939 board

[TEDY]

buuuu uwackme , you and your 4 dimm slots :P

/me jokes

[TEDY]

transam did you got your MUSHKIN ?

they're 286$ now.....

[WeStSiDePLaYa]

transam did you got your MUSHKIN ?

they're 286$ now.....

damn, retailers are starting to get word about the mushkin. prices in canada have jumped like 30$

[eva2000]

Anyone checked a BEFORE / AFTER to see what ID numbers are on the actual chips? Surely some outward marking would tell which is which?

I'd luv to find 4x 512M sticks that run 250Mhz @tight...together in a 939 board

yup still waiting for board makers to bring out an overclockers board that can take 4 dimms populated to the max! They did it when going from 845 chipset to 865/875 for 2 sticks, now I want 4 stick oc'ing

[TEDY]

damn, retailers are starting to get word about the mushkin. prices in canada have jumped like 30$

really 100% ?

[death metal]

Wow, thanks for solving the mystery ryan ...that's awesome...

[Reefa_Madness]

Anyone checked a BEFORE / AFTER to see what ID numbers are on the actual chips? Surely some outward marking would tell which is which?

I've looked at the pic of the chips in AnandTech's initial Corsair PC3200 / Samsung PC4000 review showcasing the TCCD chips and the ones posted by Colin of PCStats which are the ones used in his review that hit 255 at 2-2-2-5. The basic Samsung coding is the same (same "F" revision), although the numbers across the bottom are different, I could not read the ones in Colin's pic. The only obvious difference is the mfg date of 431 (approx 8-1-04) on the newer, voltage-loving revision. With a program like Everest (AIDA32) I believe that you can get the mfg date displayed so that could clue you in if you have access to the ram, like if you are purchasing a previously owned set or if you are willing to buy and test, then pay the 15% restock fee if it is the "wrong" revision.

For lots of people with unmodded boards or no Booster, these new chips will not have a significant impact, however, for those with voltage at their disposal, this is big time news. I suspect that within a few months max, they will all be of the new revision if you purchase from a retailer with decent volume.

Edit/Correction:

My mistake, it is not AIDA32, but CPU-Z (ver. 1.24) that displays this date in the SPD tab. I guess I just crossed up these two tools when I posted. Luckily one of the guys caught it.

[STEvil]

431 is 8-23-04 I beleive.

[WeStSiDePLaYa]

really 100% ?

theres only like 3 places that carry this ram in canada. and its all jumped. makes me sad.

[TEDY]

order directly to muskin then.....around 260 $

[Wingz]

are these the Muskins you guys are talkng about - Link

[TEDY]

yes

[Wingz]

yes

i've ordered some Gskill ram but i think i'll call them tomorrow and change to these Muskins. Need to find some reviews or test results of this ram.

[Nanobot]

With a program like Everest (AIDA32) I believe that you can get the mfg date displayed so that could clue you in if you have access to the ram.

I'm not seeing any mfg date with Everest(v1.50.187)

This is the only info when I right click SPD and make a report:

[ DIMM1: OCZ OCZ4001024DCPER2-K ]

Memory Module Properties:
Module Name OCZ OCZ4001024DCPER2-K
Serial Number None
Module Size 512 MB (2 rows, 4 banks)
Module Type Unbuffered
Memory Type DDR SDRAM
Memory Speed PC3200 (200 MHz)
Module Width 64 bit
Module Voltage SSTL 2.5
Error Detection Method None
Refresh Rate Reduced (7.8 us), Self-Refresh

Memory Timings:
@ 200 MHz 2.0-2-2-5 (CL-RCD-RP-RAS)

Is there is a way to tell what date/series the modules are?

If there is,could someone please post it,it would be nice to start a database on a seperate thead with oc+voltage results above 3.0v.

[Rabbi_NZ]

interesting

[LANjack]

Does anyone have any word on whether or not the gskills are using these yet?

[STEvil]

read the numbers and letters off the top of the ram chip, that will give you production year/week.

[twist]

ive got two 512 sticks of corsair 3200XL coming in the post, retailer informed me theyve just got them in today... ill see how they do.