Overclocking <10% Leadtek Ti4400 memory fails; TWICE?

[Liquid3D]

This is the second time with minimal Overclocking (10%) my Winfast A250 TD, failed on me and this is a new card. The highest OC was 301MHz/605MHz) no overvolt, the FSB was at 200MHz, however, in the case prior to this the FSB wasn't over 141FSB, and the same failure conditions repeated themselves: the Memory drops to 405MHz from default of 554MHz. On the Ti4600 the clocks are 350/650MHz which is significantly higher (more so than in other card manufacturers jump from their 4400 to 4600 model?) point being, I beleive Leadtek may be sourcing inferior RAM for their A250 TD versions.

I wouldn't necessarily jump to this conclusion, had I not read in a review of the Ti4400 that the author drew a similiar conclusion. And also read this on another Froum severalm months ago, but cannot recall where. I'm currently searching for that review, but wondered if anyone else has experienced this problem with this EXACT card. (Please don't write you have the "Ti4600 and it works great") I would appreciate any theories? If i weren't about to RMA this card I'd take the chunk of aluminum of the card and copy the type and stepping of the memory.

[antipop]

I've bought a ti4400 from leadtek a month ago and it's working really fine@ 300/650 and 154 fsb

[Dizzario]

The clocks on my Abit Siluro TI4600 are 300/650 default.

But this sounds like a similar problem I was haveing with my ASUS v8200 Delux Gf3, it worked well at default but every once in awhile it would screw up and the GPU would drop to 6mhz and windows would says that "It has recovered from a crash and needs to be rebooted". I finally found out that it was the Power Supply and it was arching on the motherboard connector, it turned the plastic around 4 of the pins in the ATX connector brown. I switched power supplies, it was an Antec 300W, and it worked fine after that. You may want to check your PS and try a diffrent/more powerfulll PS than your using if possiable.

Hope this helps some.

http://www.dionisus.com/~dizzario/Misc%20Pics/Computers/GPUSpeed.GIF

[Liquid3D]

This is so weird. I can't begin to tell you the cornocopia of anomalies I've experienced with my PC over the last year, and every component was driven by Antec400Watt and now 480Watt PSU's (BUT from different sources)
CPUCool indicates the 12V and 5V rails are constantly under by as much as a volt. And the 3,3V is always overvolt.
I've gone through three CPU's and five different modules of RAM,
three KT333 boards, and now an 8K9A board.
Bottom line, I haven't been able to acheive 13000 points in 3DMark2001SE since acquiring THIS; the second version of a Leadtek Ti4400 driven by the 480Watt Antec. I read 20 articles prior to buying this card, (as with all my equipment) and everyone felt it was ONE of the best OCing NV28 GPU based cards out there. I haven't run anything under DDR400 since April, and have had PC3200 Rev1,Rev2 OCZ, and now DDR433 (which is currently the fastest DDR433 on the planet) See link: http://www.ocprices.com/index.php?rev_id=104&page=8&action=reviews
So can anyone tell me where the Hell my crappy benchmarks derive from? I realize the early 2400 AIUCB's (0242) overclock poorly, and it's possible the card is pulling so much current do to it's twin fan architecture (although smaller fans). Should I be monitoring the Voltages constantly, as a method to determine if it's the PSU? Perhaps I should try raising the AGP bus voltage, thereby compensating for the twin fan's? Of course now it look's as though Powerstrip 3.30, and WinFox utiltiy are both reading the leadtek as 554MHz again? Can it reset itself? I'm willing to do the work to and take the time to stucy, and learn all I can, yet I still have hit a wall which shouldn't be there, but is. I gues it all boils down to sourcing good CPU, GPU cores, Ball Grid Array memory for the video card, as well as good IC's for the DDR, great stepping's, keeping it all cool, and of course having the cleanest power, with adequate amperage to drive it ALL overclocked.

[Liquid3D]

Antipop; what PSU do you have?

[Pimp!]

i got the leadtek ti4400 and antec 400w, i get 311/666 stable as ever

[antipop]

Originally posted by Liquid3D
Antipop; what PSU do you have? I have a 400W from TTGI, it's a tad low on the 5v but otherwose it's a good psu
Did you said that your 12v and 5v were undervolt by a full volt??

[Galifrey]

the leadtek heatsink is a pile of pooh, you are lucky if it actually touches the gpu and the ram properly, but I guess you arent lucky...

Changing mine to a TT G4 Copper cooler improved the clockability by loads...

The leadtek sink looks the part, but unfortunately it isnt... ;)

[Diablo II]

Originally posted by Liquid3D
I haven't run anything under DDR400 since April, and have had PC3200 Rev1,Rev2 OCZ, and now DDR433 (which is currently the fastest DDR433 on the planet)[/COLOR]

LOL look at what this 120€ PC3200 A-Data stick is doing without Heatspreaders and tell me what is the fastest DDR in the world :D

http://forum.pctuner.net/forum/showthread.php?s=&threadid=15360

[KingInge2000]

310/700 @ 200 MHz FSB.

[Liquid3D]

Originally posted by Diablo II
LOL look at what this 120€ PC3200 A-Data stick is doing without Heatspreaders and tell me what is the fastest DDR in the world :D
http://forum.pctuner.net/forum/showthread.php?s=&threadid=15360
My apologies. One condition which keeps me at the Newby level, is my naitvete' in (the often) contrived benchmarks which are but an "artifact" of the "binned for review" stores of RAM or other handpicked Hardware which manufactuers may submit. And my belief that "off the shelf" examples will reproduce these "ideal" benchmarks, are what keeps me in the realm of Newbeism in the OC world.

Of course this particular statement is not accusing OCZ of any such behavior, and I've come to know them as a company who's products have always out-performed other manufacturers I've tried including Crucial, and Corsair. It's just every benchmark is but the amalgamation of all (relevant) components working to acheive said result, of course with the appropriate cooling, and clean amperage. I stick with OCZ because their products have been the best for ME (and many others). I, however; HAVE MUCH MORE TO LEARN.

And to answer another question, my rails aren't constantly undervolt by a full volt, but have dropped near these levels. Their usually around 11.89V, 4.83V and 3,3V is usually over. They fluctuate. I thought this may be result of Leadtek's "twin-fan" cooling, however I experienced these anomalies using a Radeon 8500 (64MB)?

[Liquid3D]

Originally posted by KingInge2000
310/700 @ 200 MHz FSB.
I had a problem at Futuremark it claims your result may not be published? Or active? Did you acheive this with your Leadtek Ti4400? Have you ever increased the AGP slot voltage to incur better OC results with that particular card? It seems anytime I hit over 610MHz on the memory I icnur damage? Would this be the result of undercurrent? It may seem illogical on the surface, as "frying" the card would usually be equated with heat/current, however; as I'm not an EE, there may be another theory at work? The good news is my RAM has "repaired" itself (I even tried benching it again and hit 13000+ @ 301/610MHz approx) and it's still registering 554MHz from the 405MHz which prompted this post.

I do realize that 3DMark2001SE is CPU dependent, and as we speak I'm also awaiting the new EL-DDR500 from OCZ, and am RMAing this AIUCB 2400+, perhaps these changes, along with a TTGI 520Watt Tri-fan PSU, will help.
OF course this may all be a moot point when I get my new Radeon 9700Pro! Of course if I going to go ape-sh__ I may as well go 3.06GHz P4, LN2 cooling, or Vapochill, or put a downpayment on a Cray. Maybe I could drive a NV30 with the Cray, how'd that be?

[antipop]

I think that voltage on your psu is really low and that might be where the problem is coming from. Try with another psu and see how it performs

[KingInge2000]

The score on the team website is only update by more than 500 Points. My newest score is 14309 Link (http://service.futuremark.com/compare?2k1=5440234)
I've no option 2 increase the Agp voltage.
And I've removed the Ramsinks.
There is only a Cooling-Solutions G1 on the Core.
Don't forget my AGP Bus @ 80 MHz.

[Liquid3D]

Although I should have known this months ago, the memory on the Leadtek Ti4400 is Samsung 3.6ns, and has been OC'd to 720MHz over it's default 550MHz. I think I can push it under the right ambeint temps to 730MHz. But I've read the core on the NV25 just doesn't like to be pushed beyond 315MHz. Apparantly there were those who thought this was a design limitation, not a cooling issue, however; I think that debate has been resolved.

antipop problem is all I have is another Antec 400Watt PSU, and an old 230Watt from my PIII 550MHz CPU system. But I'm going to order a TTGI 520W next month.

[antipop]

Antec makes some pretty good psu, so i don't know why you get those kind of voltage? Do you have a lot of parts in your comp?

[Liquid3D]

1.65Volts from the CPU
Vantec Tornado 84CFM 80mm F
2x80mm case fans
TDK CD-RW
Toshiba DVD-CD
Panasonic 1:44
DiamondMax 20GB HDD 7200RPM
SB Audigy
Digitan MDM
Leadtek Ti4400
and of course the beyond the CPU, memory, NB/SB, sound/video cards, HSF etc, the Drives beyond the HDD aren't even pulling current.
In fact with CPU's designed to use less current, the PSU was close to overkill. Except in overclocking scenarios, even then, it should be adequate.

Basically NO, but I'm thinking it's the building's electrical circuit. If the people next to me use an electric heater, and a Coffee maker simultaneosly the dam Breaker jumps, leaving all Apartments on one side of the 3rd floor powerless. That's all i can think of. I wouldn't have bought an Antec if I hadn't thought them one of the top Three PSU's on the market.

[antipop]

Maybe you can try to plug your comp on a power surge, one that would clean the current otherwise i don't se why your voltage is so low, maybe the mobo is faulty?