Samsung UCCC 512m*2 @ 310mhz 3-4-4-8 1T,

Bought 2 samsung UCCC from local dealer, so good, even better then some TCCD.

setup:
AMD OP146
DFI Expert
Samsung UCCC 512m*2
Tower120
78gtx 256m sli/ 5200u pci
7k80*2 raid0
Antec neoHE550w/ zippy psl-6701p

1. 280mhz*10 3-4-3-8 1T , best timings.....

2. 295mhz*10 3-4-4-8 1T , losen timings....

3. 300mhz*10 3-4-4-8 1T , extremme bandwidth

4. give some more volt. 2.92v ! get over 303mhz 3-4-4-8 1T pi_1m done

5. what's more ? pi_128kb running, the end... 310mhz 3-4-4-8 1T

what are the full markings on the chips.

nice results !
Is this 'generic' Samsung memory ? Any info on PCB ?

LOL superpi 128kb , that's a new one for me

it looks very close to the ones i have

m368l6523cus-ccc

k4h510838c-uccc 549

i just tested a pair in a p5p800 ram set to 500 3-4-4-8 2.65 vdimm no problems.
will try a pair later at home so how far they will go.

Quote: Originally Posted by leejsmith it looks very close to the ones i have

m368l6523cus-ccc

k4h510838c-uccc 549

i just tested a pair in a p5p800 ram set to 500 3-4-4-8 2.65 vdimm no problems.
will try a pair later at home so how far they will go.

yes, right, 549 uccc

Quote: Originally Posted by Jaco nice results !
Is this 'generic' Samsung memory ? Any info on PCB ?

LOL superpi 128kb , that's a new one for me

yes, generic samsung

I'll post some photos later

great i have 512mb and 1024mb sticks with the same chips.
i will test them both out on my dothan rig tongiht

have you tested them at 2.5-3-3-5 or 7 how far will they go at that speed.

Quote: Originally Posted by VictorWang yes, right, 549 uccc

VictorWang, those are single-sided, 8 ICs only, right?

and please post some pics, or the full marking on the ICs. is it K4H510838C or K4H510838D?

2 x 512mb @ 2.65v

1m pi stable

and 3d mark stable

2.75 and 2.85 made them worse.

this is better than my gskill tccd la that would not do 280 at any settings.

2 x 1gb @ 2.75 3d mark stable

very nice , lee

I new changing the ram i buy at work would pay off sooner or later.
i do try and test them as they come in last ones had 546 chips on them but they were poor.

these 549 are good chips.

i wonder if 2.7 vdimm would be a good balance and get them a little higher.
at 2.75 the max fsb was 286 1m pi stable i started to get errors above this but at 2.65v no problem at 292 maybe try 2.55V or 2.6V

at 284 2.65v i ran 3dmark 2k1 for a couple of hours no problems.

Tested how far you can go at 2-3-3-5? I've got TCCC (shouldn't be very big difference except that UCCC's is leadfree and TCCC has lead) and they can do 2-3-3-5 64µs RMS @ 231,5! I tested them in Prime95 Blend Test for 2,5 hours, then they had an error, but I'm sure it is the CPU that was the weak link.

Only thing is that they won't boot at even 211 with 2-3-3-5 from BIOS, but it goes really smooth from windows and ClockGen/i865 Tweaker.

Mine are also Generic Samsung, K4H560838F-TCCC, 434.

these were mine , they did 281@3-3-3-7 2.7V

it's a shame those are single sided sticks