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 TCCD/TCC5 discussions, memory tuning, voltage, etc.

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pcmoddingmy
post Aug 26 2005, 06:56 PM

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Eh? Whats BH-5 doing in a TCCD thread? tongue.gif

Anyways, I find that it is much easier to overclock 2x256MH TCCDs to 300+MHz with 1T than 2x512MB TCCDs.

Here's my setup doing 300MHz 2.5-4-3-7-1T @ 2.7V on Corsair 3200XL 2x256MB TCCD 513
user posted image

My current highest stable record at 320MHz 2.5-4-4-8-1T 2.7V on 3200XL 2x256MB TCCD modules
user posted image

My Setup: A64 3000+ WinChester - DFI LP UT nF3 Ultra-D (BIOS 705) - Corsair XMS 3200XL 2x256MB 2.7v - LTD 3x 1.7v - CPU 1.6v - vAGP 1.6v

Edit: All tests done in DUAL CHANNEL.

This post has been edited by pcmoddingmy: Aug 26 2005, 06:57 PM
pcmoddingmy
post Aug 26 2005, 08:19 PM

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QUOTE(soulfly @ Aug 26 2005, 07:53 PM)
nice one there dude

but 256MB modules sure can clock high easily due to the single bank factor
*
Yup.. its either that or my board hates dual sided memory module.
pcmoddingmy
post Aug 30 2005, 07:49 PM

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QUOTE(ahpaul82 @ Aug 30 2005, 05:04 PM)
Which one more realible ? or should i said more trusted ?
Prime95 or SP2004 ?  huh.gif
The Prime95 failed but SP2004 still running no error yet..  blink.gif  blink.gif  blink.gif
*
Actually both are the same, using the same Lucas-Lehmer iterations. To stress the RAM, use In-place Large FFTs or Blend Tests. However, Blend test will use up all of your RAM and causing extreme lags. So, I prefer Large FFTs.

If you have Prime95 for some reason, try Windows MemTest (http://hcidesign.com/memtest/). Let it pass atleast 3000% coverage or 2 hours error free for maximum stability.

Edit: Screw BIOS Memtest! shakehead.gif

This post has been edited by pcmoddingmy: Aug 30 2005, 07:50 PM
pcmoddingmy
post Sep 1 2005, 02:40 AM

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QUOTE(charge-n-go @ Sep 1 2005, 02:28 AM)
Usually if my prime passed 2 days, the system is stable for more than 1 month full load. My 2x512MB Corsair TwinX PC3200 can run at 2-2-2-5 by default wor. 2.80V already can reach 255MHz (2.5-3-3-11) with a crappy nforce2 chipset. I dont think u need sucha high voltage la. btw, what motherboard r u using?
My Corsair batch is 0529083-5, dunno isit good or not, hahaha.
*
blink.gif Wah? One month full load???
Man, you are crazy! tongue.gif

Actually you don't need to stress for 2 days, but you can if you wanted to. Besides, other hardware maybe in risk of getting damage if you stress your system for 2 days or worst if 1 month. And you will end up paying more electrical bills then ever before...

I usually run Windows Memtest for about 2-3 hours to check for stability and continue with some intensive benchmarking such as UT2K4 Primeval, Doom 3 demo1, CSS:VST with Prime95/SP2004 running in the background. If it passed without a hitch, I will test the stability by playing CSS with maximum bots loaded.

Also, remember to face a cooling fan towards the memory modules as TCCD/TCC5 chips tends to get pretty hot during Memtests especially test #5.
pcmoddingmy
post Sep 1 2005, 07:20 PM

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ahpaul82: Try to keep your CPU clock to the original speed by lowering the multi. Unless you are sure that your CPU can do 270HTT at x9 multi...
pcmoddingmy
post Sep 15 2005, 03:38 PM

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ah_khoo..... are you the same one in DFI-Street?
Well, the problem is with the mobo. I was never able to do 1T at 300MHz with 2x512MB kit on the nF3 Ultra-D.
pcmoddingmy
post Sep 19 2005, 11:30 PM

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ah_khoo: Better don't burnin your TCCD. Burning in TCCD will screw up the RAM.

I'll say try from 2.7V to 2.8V... 2.9V max on that mobo because it overvolts.

My TCCD can do 300MHz at 2T with no memtest errors but BSODs in Windows. Previously no BSOD or whatsover in Windows at 300Mhz and above.

My previous results doing 323Mhz at 3-4-4-8-2T on 2x512MB TCCD on DFI LP UT NF3 Ultra-D:
user posted image

But sadly, I'm not able to do that anymore with my Winne. Changed to Venice and hoped the better mem controller can solve my problem but it did not help me either. Maybe I screwed the RAM by trying to run it at 3.0V doh.gif
OR maybe the mobo is screwed!

This post has been edited by pcmoddingmy: Sep 19 2005, 11:32 PM
pcmoddingmy
post Sep 22 2005, 09:40 PM

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QUOTE(ah_khoo @ Sep 22 2005, 02:06 AM)
i wish i can run 1T for htt > 300 too, but seems like it's quite impossible. i've asked some users of 2*512 tccd/5, they're havin d same problem too. i can safely say it's becoz of chipset limitation on nf3 ultra.  sad.gif
i hope i didn't screwed up d ram... coz it cos me bout d $$ i've spent on my mobo + processor...  sweat.gif

so far 300htt @ 2.5-4-4-8 w/ 2.96V memtest error free but can't complete super pi 32M...  doh.gif any idea guy?

my venice confirm no problem runnin 300htt, seems like this ram dun wanna coorperate...  cry.gif
*
I'd say screw Memtest cos its not reliable at all. Run Windows Memtest for stability check instead.

Well, from what I have tested, my previous DFI LP UT nF3 Ultra-D had issues with 2x512MB TCCDs doing 300MHz at 1T, but no issues with 2x256MB at 300MHz - 1T.
Thinking that nF3 limits 1T at 300MHz, I tested the same 2x512MB TCCD on Abit AN8-SLI (nF4) and it gets worst. I'm not sure if the memory is screwed coz now it wont even do 200MHz at 1T on the nF4 setup. It will pass Memtest1.6 at 290Mhz 1T without any errors but BSODs when booting into Windows. sweat.gif

I'm running 2x256MB TCCD at 300MHz - 1T on the AN8-SLI now and with just 2.7VDimm, it passed OCCT and running Windows Memtest at the moment. Looks like this board is also having a tough time eating 2x512MB TCCD sticks shakehead.gif
pcmoddingmy
post Sep 24 2005, 01:16 AM

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QUOTE(soulfly @ Sep 23 2005, 10:17 AM)
Yes, there are some TCCD that cannot do 2-2-2-x 200mhz @1T, because TCCD is actually binned to run at 500mhz

same case with TCC5, which is actually binned at 466mhz, but results showing that more/most TCC5 can do 2-2-2-x 200mhz compare to TCCD
*
Actually TCCD is the most flexible chip ever because it can support low latencies at 200Mhz 1T and super high MHz at looser latencies.

It is quite rare that you will find a TCCD that can't do 2-2-2 at 200Mhz. If you can't do it, it's probably more of a mobo / CPU problem rather than the RAM itself.

Most TCCDs, be it DDR600/DDR550/DDR400, should be SPD programmed at 200MHz 2-2-2.

But I can't confirm this with TCC5 as they are slightly different than TCCD.

Also, try swapping the modules between the slots because they are quite picky.
pcmoddingmy
post Sep 25 2005, 07:57 PM

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Thanks for the info din.
Yup, a number of Gskill modules will not do 2-2-2 at DDR400 but I've had better luck with TCCD from different manufacturers.
pcmoddingmy
post Oct 13 2005, 02:02 PM

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QUOTE(gengstapo2 @ Oct 13 2005, 02:00 PM)
n00b asking here, might silly question.

can TCCD run 2.5-3-3-7 at high Htt? let say around 250Htt. can arr?
*
Yup..... you can probably do up to 275MHz with that timing at 1T.
pcmoddingmy
post Oct 15 2005, 10:14 AM

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QUOTE(ah_khoo @ Oct 13 2005, 08:49 PM)
d latest bios(8/24) is almost d same, but it doesn't like venice, works well w/ sandy thou...  sad.gif 7/11 (d 1 i'm usin) juz slightly diff...  biggrin.gif

juz give it a shot, x harm tryin rite?  wink.gif

thx soulfly...  notworthy.gif
EDITED: juz dig dis out from dfi-street...  biggrin.gif

Memory Hole for PCI MMIO = Disable
Max Memory Overclock (MHz) = 200
1T/2T Memory Timing = 1T
Cas# Latency (Tcl) = 2.5
Ras# to Cas# Delay (Trcd) = 4
Min Ras# Active Time (Tras) = 8
Row Precharge time (Trp) = 4
Write Recovery Time (Twr) = 1
Ras#-to-Ras# Delay (trrd) = 2
Row Refresh Time (Trfc) = 16
Row Cycle Time (Trc) = 8
Write-to-Read Delay Twtr) = 2
Read-to-Write Delay (Trwt) = 2
Refresh Rate (Tref) = auto
Write Cas Latency (Twcl) = 1
Max Asynchronous Latency = 7
Read Preamble = 5
Dynamic Idle Cycle Limit = 0
DDR Output Driving = Weak Drive
DDR DQ Drive Strength = 50% Reduction
ECC Function = Disable

*basically juz copy & paste from review by raymond in his fc review...  tongue.gif

i found out those in red are quite critical, wrongfully assigned d values will require cmos clearin > d thing i hate most...  doh.gif
*
Yup, those are very critical timings for TCCD. However, make sure you check using A64 Tweaker as the timings might change when you're in windows.

But anyways, it still doesn't help to run a pair of 2x512MB TCCD at 300MHz / 1T using that nF3 U-D mobo sweat.gif
pcmoddingmy
post Oct 25 2005, 03:00 PM

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TCCD will work well on AMD 64 platform only. Intel motherboard lacks the required memory timings (tref,twcl,twr...) to get the TCCD modules working at high speeds.

If you plan to get TCCD and overclock up to 250MHz, I guess Intel motherboard should be able to take it... and maybe up to 275MHz. But surely it will be almost impossible to do 300MHz on Intel platform.
pcmoddingmy
post Nov 12 2005, 01:24 AM

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Burn in TCCD?
I dont think its a good idea... TCCD will not work well after burning in, chances are less.

2.7 to 2.8 is sweet spot for TCCD. If its not stable, don't increase the voltage. I've been playing with TCCD before and gave it 2.9 to 3.0V. After such high VDIMM, the RAM will not be stable at low voltages anymore.
pcmoddingmy
post Nov 15 2005, 01:43 AM

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QUOTE(Westley @ Nov 14 2005, 04:34 PM)
juz found out a new problems, plugged in 4 stick of tccd, gskill fc...
can't run stable using 2.7, but if running 1 pair(2stick) for dual channel, it is okay...
and i hv prove tat the 2 pair of ram i buy are fine...
currently i'm testing wif my gigabyte board, and also the same.
so, my 2.8v stable for 4 stick is nothing related wif bad tccd, juz two pair not match.
weird isn't it???
*
Actually the RAMs are OK, i guess. It your processor (mem controller) that is hitting the wall.
Try setting to 2T and you will have better stability. Or, get another processor (E6, FX or Opteron).
pcmoddingmy
post Dec 1 2005, 01:14 PM

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vickyrao:
Update to BIOS 18 or 19.
Use the closest DIMM slots near your proc (black coloured slots).
Drop CPU multi to 8 or 7. Because your proc may not OC as high as it did before. Anyways, lets get the ram to clock higher. Later you can tweak the proc.
Set LTD to 3.
VDIMM: 2.7-2.8 | nF4: 1.7 | HT: 1.35
Try the following DRAM timings:
2.5-11-14-4-4-8-4-3-2-4-1T-4 beats-Enabled
pcmoddingmy
post Dec 3 2005, 02:43 PM

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QUOTE(vickyrao @ Dec 1 2005, 11:48 PM)
ill try it tomolo as soon as i get home...cos now me at work....working at nite...didnt see ur reply this afternoon...hehehe....ill try n then ill post the results here.....btw the settins u gave me is for an8-sli rite??mine not fatality ok...

mine now running on BIOS 19...i am using the slots closest to my proc....which is dimm 1 & 2.

y u say i might not be able to clock as high as before??why is dat bro??? sweat.gif
*
Bro, both Fatal1ty AN8 SLI and vanila AN8 SLI are the SAME. In fact, both use the same BIOS and I even got my AN8 SLI with Fatal1ty driver disk! tongue.gif (You can buy the Guru Panel for your AN8 SLI too)...

You might not be able to clock higher as before coz its different mobo. Each mobo has different overclocking capabilities. I managed to do 2.7GHz (Venice) on my nF3 Ultra-D before but its only stable up to 2.6GHz on the AN8 SLI. I can boot at 2.7GHz on AN8 SLI but its not prime stable. Also, Abit told me that AN8 SLI is not very "ngam" with Venice.

You can check out my review of AN8 SLI HERE
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