Ultra-D wont run single channel

[Lestat]

ok whats the deal... my NEO2 did this also.

Ive tried with 2x 512 OCZ PC4800 Plat and 2x 512 Corsair XMS PC3500 BH-5

ive tried slots 1 and 2 and 3 and 4. 1 stick works fine but both stick .. nope she just boots up and beeps at me.

resetting the bios does absolutely nothing.

once i switch to single channel the system will no longer boot even if i switch back to dual channel.. it posts but i have no video.
i have to reset the bios for 10 minutes... use 1 stick of ram boot it up set defaults... then power off and put in the 2nd stick.

whats going on with this a$$ backwards motherboard ?

*EDIT*

SORRY EVERYONE I MEANT TO SAY ULTRA-D WONT RUN SINGLE CHANNEL.

[Ugly n Grey]

Just for the sake of argument, have you tried booting at 2T to see if your mem controller is a little wonky? I ask because you mentioned failure on two different motherboards...

[Lestat]

oh damn it i just realised

i didnt mean DUAL CHANNEL i meant SINGLE CHANNEL the board wont run 2 sticks single channel

oh my gawd its too early in the morning sorry everyone.


and actually this is 2 different cpu's.....

actually 3 if you count my newcastle that did the same thing in the neo2 along with my other Venice.

so neo2 and a newcastle 3500 and a venice 3200
and a Ultra-D and a different 3200 venice.

[Ugly n Grey]

OK, take a deep breath and start over... explain what you are trying to accomplish and what you have experimented with so far so we don't all suggest the same things you already did....

Though I am curious, why single channel mode?

[Lestat]

single channel is really only for ram and memcontroller testing and contrast against dual channel overclocking.


ok...

2 sticks of 512 either OCZ PC4800 EL Plat TCC5 or 2x 512 Corsair XMS PC3500 old school BH-5.

tested 2 sticks in slots 1/2 and 3/4 the system boots and just beeps at me..
at that point something happens to the motherboard because the system will no longer boot unless i power down and reset the bios properly. I also must remove 1 stick of ram and boot up with 1 stick of ram, then get the bios setup then i can add the second stick.


basically right now i have only dual channel, and single channel with 1 stick of ram.

i need to do some testing with 2 sticks of ram single channel but the board refuses to let me do it.
now what i cant explain is why the board loses video if i go from dual channel to single channel w/ 2 sticks... why i must reset bios and switch to 1 stick to get it to boot.

if reset the bios and THEN switched to single channel using slots 1/2 or 3/4 and the system STILL wont boot,, it only beeps, THEN i have to reset the bios AGAIN and use only 1 stick of ram in either slot 1 or slot 4 and boot to the bios load defaults, power off and add the 2nd stick for dual channel. if i try this and add the 2nd stick as single channel i am right back to square 1 with the no boot no video.(thats not true the system is boot to the post screen with no video it just wont go any further. the led on the motherboard shows that its "testing video" and stops. so for all intents and purposes it cant detect my video card.

THAT is my ultra-d

my NEO2 did a similar thing but i still had video, and all i had to do was switch to dual channel i didnt have to go thru and reset the bios and all that. theboard just refused to use single channel w/ 2 sticks of any ram.

[Ugly n Grey]

So I wonder if the problem is possibly the integrated memory controllers and the question I have is do they support dual channel on multiple sticks and if they do has it been implemented correctly in the BIOS of the boards you mentioned.

I am going to try it myself and report back on my own experience for comparison.

[Lestat]

thank that would be cool

we dont see people running single channel with 2 sticks much anymore unless its a really horribly bad cpu that cant handle high dual channel overclocks

but for ANY motherboard and cpu to NOT support single channel ? wow thats pretty rediculous to say the least.

this new LBBWE 0528 UPAW 3200 venice of mine is pretty lame. hits a wall at 2.7ghz and another at 1.7v the 1.7v thing is odd it hates it and i mean that no matter what i have the cpu set to,, if i change the vcore to 1.7v everything just fails.. but 1.65 seems ok...
but anything over 2.7ghz again another wall...

so thats why i want to test single channel with 2 sticks.. that and also to see how far the memory will go without the stress of dual channel on it.. i should be able to get higher in single channel on both cpu and ram.. but if single channel w/ two sticks isnt implemented properly then wow.. what a waste.

here is where i am now in dual channel but its at 2.9v which with tcc5 i dont like but its not gunna hurt the ram at all.

Windows memtest is throwing errors.. so something isnt right

[Ugly n Grey]

From the manual:

The integrated memory controller in AMD's 64-bit Socket 939 series CPU will directly catch data transmission from DDR RAM without passing through the Northbridge. Therefore when using 4 identical double side DIMMs or using 2 DIMMs in non-dual channels, the memory speed will reduce to DDR333.

A DIMM's SPD is originally fixed at 1T. When modules are inserted in DIMM 1 and DIMM 3, the SPD must be 2T for better system stability. We recommend inserting DIMMs in DIMM 2 and DIMM 4.


What this means:
You have to install memory in a single channel for it to work in single channel mode. So you have populate the two slots closest to the CPU or the two closest to the end of the board (one orange and one yellow) and set for 2T etc....

It worked on my 7xx BT BIOS... with a x2 4200 CPU at stock speeds everything set to auto for simplicity just to see if it booted.

[Lestat]

actually it doesnt say to set it to 2T for single it says for Dual channel when using slots 1/3.

2T for single channel omfg.. lets see 1/2 the performance by going to single channel and then you loose another 35% more by going to 2T in single channel omg...

and like i say ive done the 133mhz 166 180 and 200mhz for single channel... and none of the slots work for 2 sticks...

what is your ram ? 2x 512 ? or 2x 256 ? and what is it ?utt or tccd?

[Ugly n Grey]

2x512 OCZ 3700 plats TCCD....

It clearly says when there is a DIMM present in slot 1 and 3 you need 2T... I assumed it meant if there's a DIMM in one of those slots (which you would need for two sticks of single channel) that you had better go to 2T....

It did set the ram speed at 333 as it said it would btw...(I had it on auto)

[Lestat]

slot 1 AND 3 not 1 or 3 right ?


slots 1and 3 are the dual channel slots that dont work very good unless you update to a newer bios thats why it says that.

slots 1/2 or 3/4 are the single channel slots with 2 sticks. again 2T has never ever ever ever ever beenneeded for single channel for the simple fact that single channel takes 50% of the stress off of your cpu and memcontroller and LDT bus.. so running 2T when your already at 333 would just be .. well absolutely stupid... you might as well be running a pentium 3 youd get better bandwidth

im still doing some benching in dual channel so i havent switched yet but i will definately do what you have done just to make it boot,, then all start tweaking from there.

ill let ya know cuz if 2T is needed then someone needs to slap DFI and AMD with a brick, thats the whole purpose of single channel less stress then you go an 2T the ram ? jumpin G hosifats.

[Lestat]

HAHAHAHAHAHAH i put them in slots 1/2 and set freq to Auto

the bloody ram defaulted to 100mhz can you friggin believe that omg

but its 1T hahah 100mhz

any attempt to overclock the system causes it to reboot.

any attempt to start the ram at 133 150 or 166 causes the system to NOT boot even with 1T

this is slots 1/2

[Ugly n Grey]

LOL, that's bad.... I swear it started at 166 on the RAM, what's so different about your rig? I used 3/4 just well...because? I dunno, I just picked those. Maybe the OCZ guys know something we don't.

[Lestat]

After 1/2 went to 100mhz i decided to not even find out what 3/4 did lol..
ill try in a little while though.

[Ugly n Grey]

heheheheh that DOES sucketh farts though... I dunno, I guess they never thought someone would really want to and just never tested it much...

[Lestat]

suck farts lol is that like farting in a canning jar and then telling the someone to open the jar ?