BH-5 vs TCCD for A64 754 rig

[viccyran]

Hi guys. Long-time reader, first-time poster on your hands :P

I've recently built an A64 rig, with a 3200 nc cg and the dfi board. (Getting the 3400 ch cg!)

I have a pair of 512 bh-5 sticks, and right now they're currently running 2-2-2-5@ddr484 memtest stable @3.2v

I've been reading recently about how great TCCD is, and I was wondering, by the time I grab my OCZ 520 psu and tweak the pot to ~3.6, would the bandwidth for my bh-5 sticks be as good or comparable to the TCCD sticks? From what I've read, bh-5 has a linear gain in terms of mhz, and I should apparently be expecting 5mhz for every .1v from 3.2. So would bh-5 running at 2-2-2-5@ddr528 be better then the new TCCD? Or should I try to get rid of my bh-5 and grab some of that.

si-sandra scores would be nice, or just any suggestions in general

TIA

[PnoT]

From everything i've been reading on the forums here i think the new sticks (ocz 3200el rev 2, g.skill) hit 280-300+ while the most i've seen someone run bh-5 2-2-2-5 is around 240-260'ish. I'm not sure how high some ppl get it with some more relaxed settings thou. I have a few sticks of bh-5 and i'm ordering some g.skill atm and i'll have to post up what i get with both brands when i can do some benching.

[STEvil]

10mhz/.1v is more common.

my bh-6 ran 270+ @ 3.65-3.7v though i've never had a system to fully test them past 270..

240-260 should be easy for bh-5 at 3.2 (240) to 3.5v (260).

[mrlobber]

I think, he wanted to know how much fsb TCCD with 2.5-3-3-7 would need to overtake BH-5 2-2-2 in performance on an otherwise similar A64 system.

I posted a similar question on dfi-street.com, at least yesterday got one answer where TCCD 285fsb 2.5-3-3-7 overtook BH-5 252fsb 2-2-2 by 400 points in 3dmark2k1 and 1 sec SuperPi (1M?), the video card clocks and cpu speed being held equal.

Of course, more benches to support that would be very welcome

[Marquzz]

My kingston BH-5 does 278MHz 2-2-2-5 and I think you have to get up pretty high with TCCD to kick it's ass, especially in 3D. But I'm getting curious now so I going to test them and comparing with my A-data 566 TCCD that does ~290 2.5-3-3

[Crankster]

For benching BH-5 is the one and only IMO. The benfits of low latencies grow at higher FSB/MEM clocks. BH-5 @ 300 mhz is probably unbeatable with DDR at the moment. For everyday use TCCD or EB seems to be the only wise choise.

[Catalan]

I don't think I've ever seen bh-5 @ 300, would sure be one hell of an OC though.

[saaya]

welcome to XtremeSystems

what board is that 240mhz 2-2-2 on? nf2? a64s let the bh5 oc a bit higher usually, 10-20mhz from what ive seen

nless you get a cpu with a high multiplier i would suggest you to get the tccd and then lower the multi and raise the fsb with 2.5-3-3 or even lower the multi more and go for 300+ 1:1 with 3-4-4/3-3-3

[viccyran]

Thanks for all the input guys. Right now I'm running 244mhz stable, using 2x512 double sidded bh-5. It's at 3.2v, and hmm.. It's still getting more and more mhz (memtest #5 burning), and I'm not so sure where it'll end up, but I think it's approaching it's limit for the voltage.

I'm running the DFI UT3 board saaya, and hmm ... What do you guys think I can hit with both sticks running @3.6v?

[WeStSiDePLaYa]

yeah im pretty much in the same boat as you i got 2 512mb sticks of bh-5 and the dfi UT coming, ive yet to order my chip. but what about the ocz plats rev2? because if they can get the same or better results with them but with lower volts i would get them. but im not sure what to expect from these chips yet because i just got them and they are 314we.

[Crankster]

I've seen a few over 300 mhz, IIRC shamino was the first one.

[Gogeta]

Remember that TCCD doesn't require insane voltage like BH5 to attain high speeds. 3v at the most.

On Tuesday or Wednesday of next week I can show you guys a single channel 512MB comparison of BH5, GSkill TCCD and OCZ PC4400 EL Gold (Hynix). I'll do highest speed at 2-5-2-2 and 2.5-7-3-3 with Sandra results. Single channel because I only have a single 512 stick of Mushy PC3500 lvl2.

[Walrusbonzo]

Remember that TCCD doesn't require insane voltage like BH5 to attain high speeds. 3v at the most.

On Tuesday or Wednesday of next week I can show you guys a single channel 512MB comparison of BH5, GSkill TCCD and OCZ PC4400 EL Gold (Hynix). I'll do highest speed at 2-5-2-2 and 2.5-7-3-3 with Sandra results. Single channel because I only have a single 512 stick of Mushy PC3500 lvl2.

Sounds good, will look forward to that

[blinky]

gogeta, sounds like a good plan

may i request that u post how many more FSB it takes for TCCD @ 2.5-3-3-7 to overcome BH5 @ 2-2-2-X, at the BH5s max, in 3dm01

thanks

[Gogeta]

gogeta, sounds like a good plan

may i request that u post how many more FSB it takes for TCCD @ 2.5-3-3-7 to overcome BH5 @ 2-2-2-X, at the BH5s max, in 3dm01

thanks

NP, will do so on a fresh OS

I haven't been able to give this BH5 any serious voltage yet, so I have no idea what its cieling is. The chips are 340WF. After looking at saaya's database, I'm expecting around 255MHz with 3.4v.

[Bennah]

I don't think I've ever seen bh-5 @ 300, would sure be one hell of an OC though.

By the great man luihed

[mrlobber]

gogeta, sounds like a good plan

may i request that u post how many more FSB it takes for TCCD @ 2.5-3-3-7 to overcome BH5 @ 2-2-2-X, at the BH5s max, in 3dm01

thanks

4th post in this thread

But more extensive testing is always welcome, so I'm looking forward to Gogeta's results as well.

[Malachia]

i instead i wants to know if for A64 are better 2-2-2-5@5:4 or 3-4-4-7@1:1....

[cargo555]

if you are plannin to use 2x512mb of BH-5 or TCCD in your DFI 250gb, it also very much depends on your CPU's on-die memory controller to handle it at high HTT and 1T command rate (not worth using 2T)

As the 754 mobos are single channel, popping in 2 sticks of doubleside 512mb memory may make it difficult to achieve high FSB @ 1T, since many have mentioned that to the computer, those 2 sticks may look like 4 sticks of memory (due to doubleside)

[Jupiler]

Just got my board a couple of days ago, along with a 3200+ NC (my first ever A64 setup actually ).
I only have 512MB BH5 sticks (2 Corsair PC3500 and 2 Kingston PC3500), so no chance on achieving high FSB.
Tried to see how high I could manage with my 2*512MB Corsair sticks.

Using 09/14 bios, VDimm at 3.0V, 230*10.5.
Memory timings :
DRAM Freq : 200 (1/01)
CPC : AUTO (boot screen showed 1T, so that looks good)
Tcl : 2.0
Trcd : 2
Tras : 2
Trp : 2
Trc : 12
Trfc : 14
Trrd : 2
Twr : 3
Twtr : 2
Trwt : 4
Tref : AUTO
all the rest at AUTO

Memtest gave no errors with those settings (almost 5 hours testing). Although v. 1.27 recognizes my NC as a Sempron.
After that, I tried 245*10, VDimm at 3.2V, same settings, but Memtest gave around 6k+ errors after almost 3 hours.
I just ordered a TDX block and will start playing with it a little more once I have it.






Pifast at 240*10.5 :

[Gogeta]

I just tested the Mushkin BH5 that I will be comparing to the Gskill PC4400 and OCZ PC4400.

260MHz @ 3.6v, single channel



Sorry for the big pic, reducing the image size in PS really destroyed the clarity. These chips may have more in them, but 260 fsb is pretty much the edge of stability for my 3.0c. Don't worry though, I've a nice 2.4c for fsb love.

[viccyran]

Man, this forum is awesome! Thanks for all the input guys. I guess al ot of people were waiting to ask the same question. I hit 250 2-2-2-5 with 2 sticks single channel on the 754.. with .4 more volts, maybe I can hit 270? I heard the linear oc of fsb/volts with bh-5, but would it apply to 2 sticks running together as well?

[Gogeta]

Hehe, if nobody has said so yet...Welcome to XS.

Remove the heatspreaders and make sure there is a fan on the RAM. What voltage were you using to hit 250? Anything about 3.4-3.5v is questionable for 24/7 use on BH5, but wont hurt for a few benches.

I could be wrong though...I think I remember seeing someboy say 3.6v is the max tolerable range for BH5 according to Winbond's data sheets. Can somebody confirm this?

[viccyran]

I removed the heatspreaders, and I'm running a Panaflo L1 right over them, I don't think I'm doing a super job to cool them, but for now it works. I'm running it at 250 at 3.2 volts.. I'm thinking about either buying an OCZ DDR booster, or just splurging a bit more, and buying a powerstream 520 and cranking that pot up to use 3.6 on my DFI.

[slavik]

you are thinking of "banks" not sides

if you are plannin to use 2x512mb of BH-5 or TCCD in your DFI 250gb, it also very much depends on your CPU's on-die memory controller to handle it at high HTT and 1T command rate (not worth using 2T)

As the 754 mobos are single channel, popping in 2 sticks of doubleside 512mb memory may make it difficult to achieve high FSB @ 1T, since many have mentioned that to the computer, those 2 sticks may look like 4 sticks of memory (due to doubleside)