Ouch! Very impressive...

Now I wanna play, too Good job, tight timings it seems. I will setup mine this evening.

Nice to see so many good memories still in action)

WTG Tatsunori.

Thanks! I'm glad to play with you guys.

I.nfraR.ed-san it's not so tight timings, max A latency = 8ns.

kotorisan.....you need to use some ethanol wipes on your ram for next run for superpi-1 ..infaR.ed then smelling your smoke from ram speeds ...hahaha

 

all jokes aside...great runs by both..good luck to you guys !!

kotori-san, then you have good efficiency. I'm slower than you with 2x256MB sticks, but also suspect my OS. We'll see

2x512mb gave me 0,3 sec. I was actually quite impressed didnt knew that difference is that huge...

Yes, 2x512 is faster, since it is double-sided and although 256MB BH-5 sticks usually have chips on both sides of the PCB, they are actually SS/single-bank.

For maximum performance on s.939 you'd want 512MB sticks as long as they are good enough. 256's are a little easier to overclock though.

For s.A 256MB sticks are mandatory, since NF2 chipset does not like DS ram and you can go much higher in FSB this way. And as we know, FSB on s.A correlates directly with performance, or the so called "efficiency"

Edited April 30, 201510 yr by I.nfraR.ed

Good to know, thank you Mr. AMD.

And now I have to find some good sticks...

It was pretty hard to make any of my kits (2x256 and 2x512) work at 280. Perhaps it is the IMC or the board.

278 - OK, but 2MHz more and have troubles.

 

I have several Corsairs (3200C2 and 3500C2), Mushkin - Level II, Special 222, OCZ VX.

My best are one of the Level II, but still hard to run at 280 and it seems memory is not holding me back, since voltage does not help. Two of the Corsair 2x512MB are pretty good and also 2-3 kits of the 2x256. Maybe I can bin individual sticks and make better combination.

Edited April 30, 201510 yr by I.nfraR.ed

@Infrared - I suspect IMC, I played last weekend with San Diego 4000+ that clocked well (suicide above 3200 air/3500 SS), but was a poor mem clocker, was able to boot 2x256 Corsairs 3200C2 @280 and even run 1M, but did 265 stable @3.6 and no voltage bump improved stable OC. It also couldn't run 2x512 above 260 and I have 2 tested kits that are able of that; also after freezing the CPU could barely hold mems @250. Time to swap CPUs, I guess.

Waiting for someone to pull 311 0-2-2-1.5 and break 28 secs.

I have very few BH-5 , and i dont want to take the risk with voltage.

I'll stay at 3.6 volt.

 

I dont even wanna know what voltage (all of you) are giving them for 280.

 

I will definitely try LN2, but not now. Will have to test some different CPUs and hook up the chiller on the CPU to see if it makes any difference.

 

@TASOS: ~3.7V, but they've seen 4V before. I tried up to 3.9 now, but didn't help on any of the sticks, so I suspect CPU/board.

3.7 volt is kind of low for 280.

At least from what i had experienced over the years.

 

The results i know for a fact , needed 3.9+ (on air) for that speed.

Well, I can do 275+ at about 3.5V, plus the timings at 280 were not that tight.

3.9 is ok for me, just doesn't help in this situation .

IIRC, I've memtested some of the sticks at 270 3.2-3.3V, but don't remember with which CPU.

Ok, my bad, it's higher than 3.7V according to bios.

Sorry for video quality, it looked much better on the camera screen and I'm out of battery and SD card space...

 

Corsair module looks good, mine is this@3.8v

Ozzy: Already wipe too, like the Peels off plating

Edited May 2, 201510 yr by Kotori

HAHA kotorisan....funny man, wipe more again go faster lol

Hmmm.....have not gone above 3.6v yet. I'll be back.

UTT is supposed to die with voltages higher than 3.6v