blazin-asian

the max i got on my cpu/mem on 1T was 270x11, 1:1. even 271 would give me prime errors after 7 hours. i recently switched over to 2T to try 273, 1:1 and its prime stable for almost 3 hours now.

i did tests with Sisoftware Sandra and @ 270 1T was about 7500k/s and at 2T it was down to ~6700 k/s. i did tests with dividers and it was even slower then 2T. so i guess 2T is good when your mem controller sucks and u want a better OC. it might even help me get stable at 3Ghz finally. but we'll see in about 10 hours

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OpterOWN 1 | 2 | 3

Macbook Pro 15"
2.2 C2D | 4gb DDR667 | 320gb WD 7200 rpm | Geforce 8600M GT 128mb | OSX 10.5.5

ScottB

Hello

Thanks for your input.

I assumed that the "Large FFT" test in Prime was the "Test"? Have I assumed wrong?

PeDrO305

Im curious about the 0T setting. Howd you get that and what software/tweak did you use?

HighLife

i know this is a old thread. however, im having the same issue. I just got my Opty 144 and its overclocked at 300x9 (have had 2 boards, Abit N8-32x and Asus A8N-SLI Deluxe)

My problem is running 1T vs 2T, it seems that cause im running ram at DDR333 (245.5) I have to run 2T to get prime stable. However, superpi is stable with the same exact settings, just in 1T. Sandra shows me over a 1100pt difference in Memory bandwith with 1T on.

Now, they question, run at 2T (245.5) or run at 1T (200mhz).

What pisses me off to no end is this is TCCD 437...and it wont run 1T at 245 8-4-4-3...getting 2.8v

I belive A64 Tweaker will let you change the cas to lower then 2.

Vagrant Storm

Not refering to CAS, but to Command Rate which will come as either 1T or 2T.

There has been mention of a way to get to zeroT. I, among others, would really like to be in the know on this issue...

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If it ain't broke...MAKE IT GO FASTER!!!

sccr64472

Take a look at your motherboard before you blame it on your ram What motherboard are you using?

Edit: Yep, I just read your entire post. Have you tried an MSI or DFI with that TCCD?

HighLife

Right now im using a Asus A8N-SLI Deluxe....i have BH5 otw and DFI Nf4-D which im going to mod into a ultra.

I got my opty to 306x9 on my asus. Ram is stuck at 251 7-3-3-3 2T with 2.85 volts.

This is the only setting i can get prime stable at. Even at 200mhz ram and 5-2-2-2 1T , prime crashes in a few hours.

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Opty 144 @ 2.77 (308x9)
Asus A8N-SLI Deluxe
TT Silent Boost / TT 75cfm Fan / TT Duct
2x 512 PQI-PC3200 (TCCD-437) 5:6/7-3-3-3
EVGA 6800 Ultra / NV Silencer 442/577
2x WD 120GB SATA
Audigy 2 Platinum - Z-560's
Lite-On 16x DVD - Lite-On 4x DVD-/+RW
CoolerMaster Praetorian / BFG 650w PSU
Sceptre Naga2 19" LCD

sccr64472

I've seen many Asus A8N boards(not the A8N32) have serious problems with 1T and also with high speeds without using a divider. I don't think you'll have the same problems with the DFI.

markuk3

My a8n-sli deluxe is prime stable upto 330x 8 prime stable with the ram i have at 1t timmings

HighLife

Must be water cooled or something....since i push air, its kinda hard to hit that HTT. Im sure extreme cooling might fix it, but since thats out of the question for me, then its to the DFI i go.

I havent seen or heard 1 person beside you getting this board stable at anything above 310.

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Opty 144 @ 2.77 (308x9)
Asus A8N-SLI Deluxe
TT Silent Boost / TT 75cfm Fan / TT Duct
2x 512 PQI-PC3200 (TCCD-437) 5:6/7-3-3-3
EVGA 6800 Ultra / NV Silencer 442/577
2x WD 120GB SATA
Audigy 2 Platinum - Z-560's
Lite-On 16x DVD - Lite-On 4x DVD-/+RW
CoolerMaster Praetorian / BFG 650w PSU
Sceptre Naga2 19" LCD