yep tref 1168 helped a little :)
memtest worked longer :p
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yep tref 1168 helped a little :)
memtest worked longer :p
So my TwinMOS 2x512mb pc3200 comes in today, which were like $110 on newegg. How can I tell what kind of chips these are? Also, is it possible they are BH5?
@DamienKC
BH-UTT should not be on vanilla sticks.
CH-UTT: (99.999% propability)
P/N: ends in AA4T
If P/N ends in something else they'r... :yawn2:
i hear UTT is good anyways, right? I can put 3.4v max into these, so I'm hoping for 240ish on 2-2-2...think it's possible?
Sure, this thread wouldn't even exist if UTT couldn't do something like that...
About the Speed Premium sticks:Quote:
Originally Posted by DamienKC
http://www.twinmos.com/dram/dram_p_sp_ddr400.htm CH5 PC3200
http://www.twinmos.com/dram/dram_p_sp_ddr433.htm BH5 PC3500
So no 3200 for me ;)
so bh-5 is better than ch-5(UTT) ??
Greetings! I just read this thread because of great interest in BH-5 memory. I used Mushkin Lvl.II with "real" BH-5 chips until today. I ordered two 512MB TwinMos SpeedPremium DDR433 stones, rated at 2.5-3-3-8. I'm using an Asus P4C800, P4XE 3.2GHz, 3.3VDIMM.
I got 1A4T. The memory chips are labeled "BH-5".
http://www.xin.at/thrawn/pics/hw/twi...mium_433-1.jpg
http://www.xin.at/thrawn/pics/hw/twi...mium_433-2.jpg
http://www.xin.at/thrawn/pics/hw/twi...mium_433-3.jpg
I got them to run at DDR450 2-2-2-5 stable, tried no other voltages. I'm stuck at that speed anyway because of my SATA RAID-0 Array no being very clock-resistant. (SATA's clock is not decoupled from FSB like PCI).
Frankly, i didn't buy the memory for overclocking, i just wanted to have 1GB of DDR400, that could do 2-2-2-5. And that it does, and it seems to be a real bang for the buck.. =)
Hello. New to posting here but have been reading these threads for awhile. I have a question and a comment. First, where are the TwinMOS Speedpremium DDR433's being sold? Does Fry's have 'em cause I have had great difficulty locating them online. Newegg looks to be the only place for the SP DDR400's and they do not sell matched pairs of them.
Second, the comment. I've wondwered what a "lifetime warranty" meant in the memory business. Here is a direct quote from TwinMOS' website, http://www.twinmos.com/dram_warranty.htm
Lifetime Warranty
This warranty applies to all “TwinMOS” labeled modules products (EXCEPT Rambus, Elixir, and any original modules) based on the condition that the product(s) is still manufactured. Any product that has reached the end of its product lifetime (End-of-Life) or discontinued shall not be covered this warranty. The end of a product line will be announced by TwinMOS on its website six (6) months prior to the discontinuation of any product(s).
So, looks like it is a product cycle lifetime and not the product. Not that many here use a piece of equipment for multiple years, (more like weeks or months), but the information was news to me.
Hmm, interesting.. Didn't know that either.
I got my SpeedPremium 433's from cheeep.de, which is a german shop (I'm from austria). Cheeep still has those modules in stock, and so does oc-wear.de. Both Shops sell it as "BH-5 memory".
The new BH and CH ics are both sold as UnTesTed. Hence the name UTT. The "new" bh-5 can usually achieve the low latencies at less volts. Still over 3 but usually don't require the 3.6v the CH UTT usually do. I'd say the UTT in general is a steal right now, especially for $110.Quote:
Originally Posted by Th3__W00T_GuY__
Sounds like the SP DDR433 may not be sold in the US. Can anyone dispute this? I'm theorising that maybe the remaining "old stock" of BH-5's is only distributed outside of the US. Guess I'll eventually pickup 2 of the SP DDR400 parts at newegg. Anyone have good results with these sticks in MSI's K8N Neo2 Platinum (NForce3 Ultra)? I just cannot afford to go PCI-e just yet. :(
Not exactly. The current UTT-BH is built with the same 0.175um die screen as the BH-5 of yesteryear so there shouldn't be much of any difference between the two. And sure enough, I have a 512MB stick of UTT-BH and a 512MB stick of "old" BH-5, and they both can hit 200MHz 2-2-2 @ 2.85v.Quote:
Originally Posted by cardnut99668
And much of the current UTT-CH can easily hit 2-2-2 with 3.2 volts, you certainly don't need 3.6v.
I'm one of the Unfortunate ones. Mine only will do 2-2-3 with 3.3 and its still unstable in memtest. I'm still getting 1-2 errors per pass. I'm hoping that with burn-in it will improve. If I change the settings to 2-2-2-x, it will produce thousands of errors.Quote:
Originally Posted by xenolith
However, 230-240Mhz @ 2-2-3 3.3V for $110 is still a helluva value.
Cjoe
http://forum.lowyat.net/index.php?ac...=post&id=54225
Does this look good to you??
Tested to run at
2-2-2-5-1T
3.3v ~ 245MHz (DDR 490)
3.4v ~ 255MHz (DDR 510)
3.5v ~ 260MHz (DDR 520)
Looks good benj, is that Speed Premium BH5?
Quote:
Originally Posted by cjoe
Did you try to do what largon did and adjust your Tref value to 1168 or do you not have that option in your BIOS? My MSI K8N Neo2 Plat has little in the way of mem timings in BIOS so I do not think I can adjust it unless one of the esteemed members here have a tool to at least adjust the value in windows. I'm trying to remember if A64 Tweaker had it. I thouoght so but the values were not so high like 1168. I think that value is in microseconds and the A64 tweaker values are in clock cycles. That statement begs the question, "How many microseconds in a clock cycle?"
@jcollett69: tREF 1168 in A64 Tweaker is "166MHz 7.8µs".
Yeah, I used 1168 TREF. It helped alot but it didn't solve my problems. I can't run 2-2-2 clean with any settings. I spent a lot of time on my DFI NF4 playing the settings. Largon said he spent 144hrs burning in his ram. So, I decided to burn in the memory at 2-2-3 @ 200Mhz 3.3V to see if I can improve the performance. I put the memory into my DFI NF2 LP B and letting it just burn in with memtest.Quote:
Originally Posted by jcollett69
Most people seem to hit 2-2-2-x pretty easily and scale to 240FSB with 3.4V in DC from all the posts. I probably just got an unlucky set of memory.
cjoe
Is there a max voltage limit for this memory? AA4T?
I'm "stuck" at 256 mhz (2x512, DUAL, PAT disabled). And If I try voltage like 3.9 there are still errors.
It's on ABIT AS8 with intel 3.2
IMO I think those sticks will top out around 3.6v Any more than that and the increase will be very minimal or actual cause errors.
Thanks largon. Saw that in a screenshot of yours featuring your A64 Tweaker settings. So I assume setting it to 166MHz 1.95 microsecond causes issues?Quote:
Originally Posted by largon
Quote:
Originally Posted by b|lly
Seems like you have it running very fast for an Intel setup.
I think i've hit the wall here. I'll try to burn it a little bit and maybe get a few more mhz...
btw, hipro5 has been running it at 260 mhz ...
I myself have some TwinMOS ValueRAM AA4T Winbond CH-UTT, whatever you guys wanna call them, and after some minor negotiation and swapping DIMM slots about 6 times, I was able to successfuly run them Prime95/memtest stable at 260Mhz 1.5-2-2-7-1T with 3.4vdimm. 260MHz is good, damn good for what I paid for the RAM ($108 :banana: ), but, being an overclocker, I'm never satisfied, so I decided to give thise whole "burning them in" thing a go. So I set it to 265FSB, which gave about ~80 errors per pass on memtest #5 and let it loop for the better part of the afternoon and all night. To my dismay, I came back the next morning to find the number of errors had increase to nearly 800 per pass :slap: I'd say my cooling over the DIMMs is sufficient, hard to think of anything better than 125CFM off of my XP-120 and the ICs are barely lukewarm to the touch so I'm lost :confused: I'm pretty determined to :horse: cause 260 just isn't good enough :D
EDIT: Oh, and I'm new here :D But I've been following this thread from pretty much day one (bought the RAM last week though).