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-   -   Memory Problems? (http://www.aoaforums.com/forum/amd-motherboards-and-cpus/32858-memory-problems.html)

leekirlew 8th September, 2005 06:37 PM

Memory Problems?
 
I've just aquired the memory in my sig, But I can't get it to overclock in 1:1. Its 500Mhz memory, which by rights should allow me to hit a FSB 250Mhz. However if I set the memory to 400DDR the system fails to boot and will only boot at DDR333. The whole reason for buying this memory was for 1:1 overclocks! I've tried upping the DDR voltage to 2.8v and still no go. Is there a combatibility issue maybe between my board and shiny memory?

hoinar 9th September, 2005 09:34 AM

Try Command Rate in Bios and set it to 2T.

BobyJo 9th September, 2005 03:38 PM

leekirlew::
I just ordered a set of 2x512mb sticks of Patriot XBLK memory sticks.
I have seen this memory do wonders in a lot of boards.

I do not know where you purchased your memory but, you may be eligable to exchange for the Patriot XBL line if you wish.

This XBLK is rated at DDR400 w/2-2-2-5 settings and goes to DDR600 at
2-3-3-8 settings. You may go to thier website and read about this, along with thier guarantee. Just a suggestion.

MrSeanKon 10th September, 2005 02:20 PM

Have you ran MemTest? :rolleyes:
2T rate gives around -10% RAM performance (running benchmarks) but you will not see great difference changing the rate.

BobyJo 10th September, 2005 04:23 PM

Yea I ran MemTest before I returned the memory to Mushkin.
Had to change to 2T, the system refused to post at 1T. With the Corsair memory we have it used to post and boot at 1T, but now we have to go 2T with that. Don't really understand why, with this.
Using one stick at a time all is ok. The problems arise when running in dual channel. Mushkin admits this Blue Line Hi Perf is not compatable with the AV8.
I have asked them to send TCCD w/BrainPower PCB's but the only thing they have exactly like this is thier PC4400 for over $200.00.
They do have some TCC5 on BrainPower PCB's and it is PC400 memory.
I do not know about TCC5.
Do you have any knowledge about this type of chips?
I used to keep up on memroy sticks, but now there are a lot different and the boards are totally off the wall with some memroy sticks.

GrahamGarside 10th September, 2005 04:48 PM

Thats an S754 board right?

Is that memory one or two dimms? If it's two, and they're double sided, then that could be your problem, a lot of Athlon 64's don't like two double sided dimms on the same channel, specially at 1T

BobyJo 10th September, 2005 05:56 PM

I think they were double sided.
They had heat spreaders covering all the chips, but I think I could see the chips on both sides of the PCB.

GrahamGarside 10th September, 2005 06:03 PM

I know with my S754 system only an older bios allows two double sided dimms to run at DDR400 speeds

BobyJo 10th September, 2005 08:12 PM

I did not see your question. NO it is a socket 939 w/Venice E6 processor.

We have Corsair,Mushkin,Samsung,Crucial, and out of these Samsung, & Crucial are single sided sticks. The Crucial will not run in this board at all, The Samsung will run with changing the settings in bios, the Mushkin ran for about half an hour before started the rebooting regiment. The Corsair is in my system at present. It is thier Valie Select Ram and used to run at 1T with no problem, now I have to set it at 2T to get it working. This Corsair will probably go back in the wifes system when I get the Mushkin back, or when the Patriot gets here. I had a $125 credit for the return of the DFI board on RMA, so I applied this towards the Patriot XBLK memory. This is highly recommended for the AV8 via thier scanner etc. It will run at DDR433 with
2-2-2-5 settings and default voltage. At 2-3-3-8 it goes to DDR600 with 2.8 volts or higher. I know some persons with this memory and it is good stuff.

leekirlew 11th September, 2005 10:57 PM

So if I revert to 2T I should be able to push fsb further at tighter timings? I'm thinking my psu may not be up to job, its a nexus nx3500 and only 350watt

GrahamGarside 12th September, 2005 12:08 AM

They have 16A on the 12V rail which though not ideal, should cope with that system

BobyJo 12th September, 2005 12:42 AM

Should, may not get it done.
Of course I cannot definately state that your powersupply is not adequate.
I will say that as a rule of thumb:
I like at least 28ampers on a single 12v leader. Also 20ampers each on the 3.3 & 5 v rails.

If your 12v lead is too lite, this means the 5v & 3.3v rails are gonna fall short also.
This leads to instability of your system. IMO::
These components cost too much to subject them to anything that could damage any of them.

I am not stating a power supply with lower ampers than necessary will ruin the board, it could damage the video card or cause the hard drive to not perform up to std.

I believe in only using the best, not necessary the most expensive.

leekirlew 12th September, 2005 10:35 PM

Ok with my old memory running it on a 333 divider I could make my processor run at 2.5ghz. With my new corsair I can't get past 210 stably running at 1:1. I've tried dropping the timings to 3-4-4-8-2t and upping the vdimm to 2.8v, but i dont get to do anything before windows restarts. However at 210 I can run the memory at 2.5-4-4-7-1t, any more suggestions? I'm definetly thinking my psu is weak, my 6800gt isn't here yet, I'm still running my 6600gt, so I think I may have some real problems soon. I'm not sure if I've got everything running off one 12v rail? I think I've got most it plugged into one, how will that affect stability?
Thanks

BobyJo 13th September, 2005 03:33 AM

Quote:

Originally Posted by leekirlew
Ok with my old memory running it on a 333 divider I could make my processor run at 2.5ghz. With my new corsair I can't get past 210 stably running at 1:1. I've tried dropping the timings to 3-4-4-8-2t and upping the vdimm to 2.8v, but i dont get to do anything before windows restarts. However at 210 I can run the memory at 2.5-4-4-7-1t, any more suggestions? I'm definetly thinking my psu is weak, my 6800gt isn't here yet, I'm still running my 6600gt, so I think I may have some real problems soon. I'm not sure if I've got everything running off one 12v rail? I think I've got most it plugged into one, how will that affect stability?
Thanks

Which Corsair did you get? Did you get a dual channel kit?

leekirlew 13th September, 2005 07:50 AM

Corsair XMS PC4000 Pro 2 x512mb. Its a 754 socket so dual channel makes no differnce (which the kit is) as the processor is single channel only

l33t_baller 13th September, 2005 06:20 PM

would i be better off not mixing ram i mean would i get a performance out of it??

leekirlew 15th September, 2005 08:22 PM

Ok, I've uprated my psu to a 450w with 25A on the 12v rail. I've still not been able to get past a fsb of 220. I tried dropping the multiplier to 10 and upping the fsb to 230 but got "windows is unable to load because C:\windows\system\config is missing" I have a pci/agp lock on my board which is activated, however, will this lock my onboard sata controller?

BobyJo 15th September, 2005 11:44 PM

What memory divider are you setting at when you start OC'ng?

What is the HT or LDT set at when you start OCng?

If you want to OC the system, to start with set the

HT=3
Divider=266
cpu multiplier=9
fsb (htt)=250 to start out

If you do not understand what these settings represent. Please ask.

cadaveca 16th September, 2005 12:16 AM

Just FYI...TCC5=TCCD. they are one and the same, but differn speed bins of the same chips.

All memory makers are starting to stock TCCD again, in sticks that previously had TCCD, and then switched to TCC5.


Corsair bought from samsung more than they could produce, so the EOL was just a temporary thing. More price-fixing, if you ask me, but i still need proof of that one. lol.

BobyJo 28th September, 2005 05:16 PM

Yes you are correct, and I did know this.
TCCD is the higher speed of the two, TCC5 is the low end of the speed spectrum.
Kinda sorta like the cpu's made, a A64 3000 Venice is the same chip as a A64 3500 Venice.
When testing these chips one tests that it will run stable at 2.2mhz and the other comes up at 1.9mhz.
It is all in the speed the chips will run under the specs for testing.

I was lucky enough to be able to purchase a pair of XBLK Patriot sticks. These run DDR400 at 2,2,2,5.
Just change the # to 3,4,4,8 and the same sticks become DDR600.
This info was on NewEgg's site for this memory until someone wised up and now they are selling the DDR600 3,4,4,8 for almost $200.
The DDR400 was $157 when I purchased them. I
couldn't ask for a better memory.
These TCCD thingys are great.


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