Adata Vitesta PC 4000 really flies

Background first....
My P4 2.4C runs up to 285 FSB, but it takes almost 1.8v to do it, so l like to run it at 270, about 1.65v. Stays nice and cool.
I returned my Hyperam PC4200 DDR533 (adata chips) because the most I could get out of it was 263x2, short of 266 for DDR533. Komusa said it tested fine there, but allowed me to return it and didn't charge me the restocking fee. A great company.

I saw the Adata Vitesta PC 4000 on newegg for 61 bucks and decided to try one 256mb stick first, to see if it was worth getting a second one.
I left my vdimm set at 2.8v and gave it a couple tests on my Abit AI7. It ran up to 285, 1:1 3-4-4-8, and that's as far as my 2.4c will go. I didn't try other timings.

Does it scale?.....
I set my vcore back to 1.65 and set the FSB to 270, ratio at 5:4 and timings at 2-3-3-6. No problems at all.
At one point I even had it running at 2-2-2-5 somewhere around 140 mHz. I didn't to other tests at this timing.
At 270, 5:4 2-3-3-6, I also added my Geil PC3500 and they ran, dual channel mode enabled, together. That surprised me.

Tonight I'll try setting my ratio at 3:4 and see how high I can get the memory to run. My 2nd stick should be here in a couple days, so I can get some good dual channel benchmarks.

Gaary

yep the adata pc4000 is very good ram and priced very reasonable

GTX, keep in mind it will be harder to do DC, no matter SS or DS sticks. That being said, just picked up some spare Vitesta from Newegg, and two 512 MB sticks are good for 284, 1:1, 3-4-4-7 on an IS7-E at 2.79 VDIMM.

As Abit boards are worse at running PC4000, I can expect at least 290-292 on the Asus and Epox boards, same VDIMM. 300, 1:1 is not out of the realm of possibility. Abit boards don't run this ram at 2.5-4-4-7 3D stable, but that's doable on the other boards.

The original pair of Vitesta I got 8 months ago do 273 on the same board, so I'm pleased. This stuff from Newegg is also doing a bit better than my ADATA PC450, though the latter can run 300+, 5:4 at 2.5-4-3-6 whereas the Vitesta max out at 295 or so.

At $109/512 MB stick, there is no cheaper PC4000 (or PC4544 ) anywhere.

wait what costed 109 for a 512 stick? lol your post had me all sorts of confused. I searched newegg the cheapest adata was 121 for a 512 stick.

Maybe the price went up? Did you search for Vitesta? The sticks were even cheaper two months ago, but Newegg was out of stock.

I can actually get the ram in Japan for about the same price, but can't go wrong with Newegg if I need to RMA. The Vitesta in Japan is older stock, so I took a gamble with the newer stuff. I figured older stock is better, as Hynix must be speed binning stuff now and charging a premium for manufacturers intent on using them for PC4200-4400. My first set of Vitesta has green PCB, so they just slapped on the red spreaders to old (good?) PC4000 stuff. The stuff from Newegg has red PCB.

I think ADATA has programmed the later sticks for better 1:1 operation.

yeah seems like the earlier adata pc4000 scaled better with voltage. i remember reading alot of reviews last spring and summer, b4 it came to the us. i got mine from komusa and its has the green pcb with 3/31 date of last year. however, 2.9v is all it needs for maximum oc and anything higher doesnt help...

yes my pc4000 only needed 2.9 max also

i really would love someone around here to have a 800fsb P4 my Adata is doing 222fsb at stock Vdimm i know it says 2.7 but thats when i was testing i got to change it

so if i go to buy some right now, do i buy the komusa hyperram/adata chips, or the adata pc4000's from newegg? Does it make a difference?

Well, the one I'm talking about in this thread is the Adata from newegg. When I got the Hyperam 4200, it didn't come with heat spreaders if you opted for the adata chips.
So, if nothing else, the stuff from newegg comes with really cool red heatspreaders and a newegg T-shirt

Gary

AkuraII, looks like the Vitesta price went up to $121. I see the same thing in Japan: prices are rising on Vitesta. A month before I got mine for $109, it was $95 from Newegg but out of stock.

While I hear KOMUSA has good customer service, I don't think you can beat Newegg. Some say heatspreaders lose 2-3 mhz, but the ruby red spreaders sure look nice. The main thing I like about heat spreaders is it stiffens up the stick and makes it easier to insert the ram. I once killed a good Sammy DTL stick due to flexing when I inserted the ram. Broke a solder joint.

i am thinking about buying the kosuma adata pc4200 or pc4000, i just want to run at 4200 speeds with cas 2.5 timings. i may even want to run 2 gig's. does anyone here have any more experience with this seemingly awesome ram from what i read? I am also thinking of ocz performance pc4200 as these timings should go down to cas 2.5 which one should i get?

I'm running my vitesta PC4000 @ 275MHz with 2.6V Dimm! incredible, isn't it?
bought them (2x256MB) for 50€ (Euro) each.
unfortunately my CPU runs out of steam beyond 275MHz.
i'm looking forward to OC the new prescott 2.4A i'll get next week...

danman81 said:

i am thinking about buying the kosuma adata pc4200 or pc4000, i just want to run at 4200 speeds with cas 2.5 timings. i may even want to run 2 gig's. does anyone here have any more experience with this seemingly awesome ram from what i read? I am also thinking of ocz performance pc4200 as these timings should go down to cas 2.5 which one should i get?

Click to expand...

i think u should be able to run 266 at 2.5-4-4-7 with the komusa pc4200. i was messing around with my 2x256 sticks at those timings ther other day and it went to about 288-290 b4 the ram stopped..

.....i just want to run at 4200 speeds with cas 2.5 timings....

Click to expand...

If you have an 875 or 865 motherboard, running at 2.5 or 3 won't make any difference.
Here's a copy from another post I made. The comparison was done with Geil PC3500 Platinum Ultra memory.
-------------------------------------------------
Abit AI7, P4 2.4C at 3243 (270 FSB) 5:4 mem ratio.
The memory timing will be given this way:
CAS latency / RAS# to CAS# delay / RAS# precharge / Cycle Time (Tras)
FPS is rounded to nearest 10th.
Call of Duty with 4xFSAA and 8xAF.
2-3-3-5 ..... 79.1 FPS
3-3-3-8 ..... 79.0 FPS
2-4-4-5 ..... 77.2 FPS
3-4-4-8 ..... 77.1 FPS
2-2-2-5 ..... 79.1 FPS (3:2 mem ratio)
--------------------------------------------------
As you can see, extreme jumps in tCL and tRAS together only made 1/10th of 1% difference in frame rates (.001). I doubt you could even measure small jumps of just one of these. With 875/865 boards, it's the middle numbers (tRCD & tRP) that make the difference.
My Adata Vitesta PC4000 will run PC4200 at tCL 2.5-4-4-7, though. I set it with SPD at 3-4-4-8 because it doesn't make any difference. It'll run at 2.7v (haven't tried 2.6v yet), 1:1 with 285 FSB, and that's where my CPU runs out of headroom. I wish I could see how much I could push this memory, but unfortunately, I'm limited by my CPU (or maybe by my AI7).
The OCZ 4200, Hyperam 4200 and Adata Vitesta 4000 should all do what you want. Check out the Komusa and newegg web sites and buy the one you can get the best price on.

Gary

and what about the adata ddr600 they recently launched? 300mhz fsb at only 2.8v? Too bad my cpu craps out at 285fsb

How high the Hynix stuff run at 2.5-4-3-6 depends a lot on the board. The DFI, AOpen, and Soltek boards are the best at this and can run this as high as 265-270, 1:1 or so. The Abit maxes at 255. Some boards will reset this to 2.5-4-3-7 in Windows.

Same deal with 2.5-4-4-7. Some boards may run this up near 280, and will get farther at 3-4-4-7. Be sure to check 3D though, as many times you can be Memtest clean at 2.5-4-4-7 but you won't get past 30 sec of 3DMark2001.

The faster CAS timings is just for looks, though there is a small increase in unbuffered bandwidth. On a real fast 875P board such as the DFI, AOpen, and Soltek (full PAT), you can run a 2.80-3.0C as low as 255-260, 2.5-4-3-6 and get up to 3500+ bandwidth (DS sticks)! I get 3DMark2001 scores in the same ballpark as a 2.40C at 300 fsb, 3:2, 2-2-2-5. You can get by with 2.7-2.8 VDIMM here also.

I ran a 3.2C at only 3.81 gig with PC4000 at 2.5-4-3-6 on a fast 875P board and got a 37 sec SuperPI 1M time, pretty good for only 3.81 gig. You'd get that easy at 238 fsb with BH-5, but the board only had 2.7 VDIMM - no way at 1:1, 2-2-2-5. Now I have the OCZ PC3700 Golds Rev. 1.0, so why not that at 2-3-3-6? Same old story: won't run on the board.

You can also salvage performance at 260-270 or so with 2.5-4-4-6 or less, which is boring with BH-5 as you have to drop down to 5:4. This is the main reason I keep PC4000 sticks, plus you get better numbers in unbuffered bandwidth and PCMark scores over BH-5 at 5:4. Mainly I get bored running just one type of ram like BH-5, so I flip flop .

What about these sticks?

http://buyaib.com/1gb5x2mekitp.html

Theyre well priced and have really good speeds if you plan on running tham at the specified speeds and timings w/o overclocking. What do you think? I think I will buy these soon

that adata memory is CHEAP, how is it not affected by the price increase we see everywhere else? especially since it performs so well?? that alpha international memory looks good too, wish we had someone to test it.

whoo!! My 256Mb stick is on its way!!