2x1GB Crucial 8500 @665.8Mhz - PC2-10652 keeping it tight

[eva2000]

Tight on subtimings I mean

2x1GB Crucial PC2-8500 Ballistix @665.8Mhz 5-6-5-9



Thought I'd loosen up the memory timings to 5-6-5-9 and see how far I can go at 2.55v vdimm max with my 2x1GB Crucial PC2-8500 Ballistix dual channel kit in black dimm slots. Swapped in 92x38mm Delta 120cfm fan to cool the memory via a rheobus fan controller

System

• Intel Core 2 Duo E6750 ES - L710A438 G0
• Corsair Nautilus 500 3/8" ID
• Asus P5K Deluxe 0311 bios
• 128MB Gainward FX5200 PCI
• 2x1GB Crucial PC2-8500 Ballistix dual channel kit in black dimm slots cooled by 92x38mm Delta 120cfm fan
• 74GB WD Raptor 8MB on SATA 2 port
• Pioneer DVR-08 Burner
• Sony FDD
• 1KW PCP&C SLI psu
• WinXP Pro SP2

Here's where I ended up @665.8Mhz 5-6-5-9 6-35-8-6-8 at 2.55v which is the highest memory frequency I've done to complete Super Pi 32M on any motherboard. Previous best was @650mhz 5-5-5-18 on Asus 680i Striker Extreme with 2x1GB OCZ PC2-9200 FlexXLC at 2.550v.

[wa77ss]

Nice results.

[CCUABIDExORxDIE]

5ghz RAM! DAHHH!! i think you mean pc2-10652. either way. good results. 680i at its finest.

[erwinz]

eva2000.. very nice results.. Is that one of your best rams.. hehehe.. I know you have more of it.. you really love rams..

[killert]

5ghz RAM! DAHHH!! i think you mean pc2-10652. either way. good results. 680i at its finest.

Its a P5K Deluxe.. it have a P35 Intel Chipset, not a 680I

[CCUABIDExORxDIE]

my mind was elsewhere, i was thinking about another 680i thread with crucial....im an idiot

[Gautam]

This is what I call tight.



That's something though, my mem controller hits a hard wall round 650 so any sort of stability at anything beyond that is pretty much impossible...I guess I can't hold out on P35 forever.

[npk]

This is what I call tight.



That's something though, my mem controller hits a hard wall round 650 so any sort of stability at anything beyond that is pretty much impossible...I guess I can't hold out on P35 forever.

wow impressive,that´s tight. vdimm?

[Gautam]

2.82v or so. Forget about pulling off any sort of stability at those sorta speeds unless you want your ram to smoke.

And yes...something's gotta be done about this thread title lol.

[Hutch]

This is what I call tight.



That's something though, my mem controller hits a hard wall round 650 so any sort of stability at anything beyond that is pretty much impossible...I guess I can't hold out on P35 forever.

You should be able to tighten tRRD and tRTP to atleast 4 for both values unless you've tried already

[Gautam]

No...those sticks didn't tighten like most. tRTP could've been 5 at the lowest at such speeds. 6 was probably necessary. tRRD 4 maybe.

Why don't you find me a memset of someone else running at 660 4-4-4 so we can compare?

[eva2000]

2.82v or so. Forget about pulling off any sort of stability at those sorta speeds unless you want your ram to smoke.

And yes...something's gotta be done about this thread title lol.

what's wrong with thread title.. I qualified the statement in the first line of the first post LOL

Very nice 660mhz 4-4-4-x for 1M... but me prefers aiming at 32M able clock frequencies

[Gautam]

What's wrong with the thread title...you're at PC2-10652 not DDR2, that's what...that'd be 5326MHz lol.

I had a shot of 635 4-4-4 for 32m but lost it. :-/ I can do it again with another pair but the problem is I endanger my sticks any time I attempt something like that.

[ozzimark]

I can do it again with another pair but the problem is I endanger my sticks any time I attempt something like that.

excuses!

Eva, I would get into a battle with you, but I have an unfair advantage: an IMC

[eva2000]

LOL guys.. boo boo on my part title corrected :o

Yeah Gautum not worth risking your DDR2...

[CCUABIDExORxDIE]

a fan is all you need to avoid risk.

[PanteraGSTK]

a fan is all you need to avoid risk.

not when putting more than 2.55v through it.

[ozzimark]

not when putting more than 2.55v through it.

my kits disagree. voltage alone doesn't kill, heat and current is really what does micron in.


edit: just noticed the humor of my sig in this situation

anyway, sorry for threadjacking eva

[CCUABIDExORxDIE]

if your gonna run 2.55v 24/7 then a fan wont due, a nice stay in a mental institution might though. but for a benching session, aka 32m spi, a nice 110+ cfm fan will do the trick.

[californian7856]

yeah that stuff was only 89 bux after rebate on egg

[Gautam]

if your gonna run 2.55v 24/7 then a fan wont due, a nice stay in a mental institution might though. but for a benching session, aka 32m spi, a nice 110+ cfm fan will do the trick.

lol Adam. You know I love my volts. The problem is my luck finally ran out with a set of ballistix 8000. I was doing 32M's for nearly two days straight for the low clock challenge at 2.72. We're talking probably 6 hours a day with very few breaks. Lotsa airflow, ram was cool to the touch. The ram isn't really "dead" yet...it doesn't even have the signature failure to POST at 1.8v problem. It feels nearly as good as new, but it doesn't clock anywhere nearly like it anymore. I'll put out my other set (even superior to that one) when I really want to make it count. I'll pretty much have to live with the risk of the set coming close to death if it gets pushed to the max. It tears me up inside because I hate babying anything...the problem with this ram is that in order to max its potential, you pretty much have to willingly kill it. Just take a look at the way Team Japan benches, they are merciless when it comes to voltage and subtimings.

So that's why I got another set of Team Group PC2-5300. Tough as a rock, 32M's and 3D at ~2.8v don't seem to hurt that stuff at all. Lack of spreaders maybe.

Anyways I've done a fine job of derailing eva's thread here.

[MotF Bane]

At least Ballistix are cheap for when you burn them out....

Good stuff though. Eva, I thought that P35's were bad with internal latencies, or is yours that low because of how fast the memory is now?

[eva2000]

LOL Gautum...i always like to be able to repeat my oc's where possible.. one offs aren't my thing so i keep the vdimm relative low compared to you crazier folks I don't know how to volt mod so anyway P5K Deluxe limited to 2.55v max hehe. Probably why in all these years i have never killed any hardware I've oc'd ever!

I couldn't help myself and got a set or two more Crucial Ballitix 8500 this time tracers.. thought i'd get in before price rise.. testing away

MotF Bane, P35 have no internal latencies issues just need to be able to tweak all the subtimings and stuff.. having memory that likes the tight subtimings you set always helps

[Gautam]

You have gotta try some of the 8000's sometime.

[CCUABIDExORxDIE]

lol Adam. You know I love my volts. The problem is my luck finally ran out with a set of ballistix 8000. I was doing 32M's for nearly two days straight for the low clock challenge at 2.72. We're talking probably 6 hours a day with very few breaks. Lotsa airflow, ram was cool to the touch. The ram isn't really "dead" yet...it doesn't even have the signature failure to POST at 1.8v problem. It feels nearly as good as new, but it doesn't clock anywhere nearly like it anymore. I'll put out my other set (even superior to that one) when I really want to make it count. I'll pretty much have to live with the risk of the set coming close to death if it gets pushed to the max. It tears me up inside because I hate babying anything...the problem with this ram is that in order to max its potential, you pretty much have to willingly kill it. Just take a look at the way Team Japan benches, they are merciless when it comes to voltage and subtimings.

So that's why I got another set of Team Group PC2-5300. Tough as a rock, 32M's and 3D at ~2.8v don't seem to hurt that stuff at all. Lack of spreaders maybe.

Anyways I've done a fine job of derailing eva's thread here.

too much current for too long! also, it could have been a spreader issue, god knows that crucial has issues with heatspreaders. they often dont touch meaning often HORRID tempuratures on the ram. but what can you do? they survive at stock for crucial so they dont care. i miss the days of good solid heatspreader contact like back in the ddr1 days