Kingston 400 MHZ Problem

[SKURWIEL]

Siemano

I have problem with my 3x kingston 400 2.5 512 MB

When i have these on auto in bios settings there are 333 MHZ and everything is allright.

But when i turn to 200 as in instruction is written then i have 400 MHZ (as there suppose to be) but i have this #$#$#@#% BOD (blue screens of death) and my computer is restarting.

 

What is this?

I have good power supplier - chieftec 350 W.

I checked memtest and there wasnt errors.

Greetings and waiting for answer.

:drool:

[gadugger]

It's because you are trying to use three sticks. Take the center one out and see what happens.

[SKURWIEL]

It's because you are trying to use three sticks. Take the center one out and see what happens.

 

But i have 3 slots and want a 1,5 GB of ram.

Why when i have 3 slots there is a problem, if they make 3 slots this should be running.

I had before i bougt third , in 2 slots only (1 gb ram ) and there was not problem - but what to do if i want a 3x slots with 512 mb of ram?

 

Greetings

[gadugger]

You might can run 3 if you learn all the timings..not sure..I just know thats why.

Maybe someone else can help.

[Bodhaguru]

When you have 3 sticks,it'll only run at 333mhz.

[SKURWIEL]

You might can run 3 if you learn all the timings..not sure..I just know thats why.

Maybe someone else can help.

 

And how i can learn about this timing and the voltage of this rams?

I have now 2,5 v , which is the best voltage for this kingsotns of mine?

KVR400X64C25 /512 - this is my rams

[gadugger]

Download this manual http://us.dfi.com.tw/Support/Download/manu...TYPE=MB&SITE=US

then look at page 19.

Then look here

http://www.ocforums.com/showthread.php?t=329627

You still might not be able to run more than 333 though. like I said not sure.

[SKURWIEL]

But like i said these rams arent overclock, and in manual there writed that 400 mhz is running on this mobo.

Thanks for links!

[gadugger]

Its not about overclock.

The memory controller on your cpu has a hard time with 3 double sided chips.

[Joxer]

**Dram Frequency Set(Mhz)**= 100(Mhz)(1/02), 120(Mhz)(3/05), 133(Mhz)(2/03), 140(Mhz)(7/10), 150(Mhz)(3/04), 166(Mhz)(5/06), 180(Mhz)(9/10), 200(Mhz)(1/01).

 

This option sets the Dram ratio. with a64, the ratios are not always writen in stone, for example 166(5/06) isnt always 5/6 ratio. you can refer to this chart for the exact ratios(they may not all be right, and thanks to Oskar_WU for his help with the chart)

 

**Command Per Clock(CPC)**= Auto, Enable(1T), Disable(2T), this is also called Command rate.

 

It is best, in most cases to use Disable(2T) with 2x1gig, 2x512, or 1x1gig Ram modules for the best stablility. 1T yeilds better performance, and 2T usually yeilds the best stabilty/overclock

 

PLEASE NOTE THAT IF YOU ARE USING A "CO" REV. CPU THIS OPTION(CPC) WILL NOT APPEAR IN BIOS. THIS IS BECAUSE "CO" REV. CPU'S DO NOT SUPPORT 2T TIMING, ONLY 1T. IF YOU HAVE A "CG" REV. CPU, YOU WILL BE ABLE TO SELECT EITHER AUTO, 1T, OR 2T.

 

*Cas Latency Control(tCL)**= 1, 1.5, 2, 2.5 3, 3.5, 4, 4.5. I would suggest only using, 2, 2.5, and 3..

 

This is the first timing that most ram companies rate there ram with. For example, you might see ram rated at 3-4-4-8@275mhz. this is the 3, in than situation.

 

2 yeilds the best performance, but, unless you have either Winbond BH-5, or BH-6, it is unlikely you will beable to reach you maximum overclock at CAS2. CAS3 is usually yeilds the best stablility/overclock.

 

PLEASE NOTE, IF YOU HAVE WB-BH-5/6, YOU MOST LIKELY WILL NOT BE ABLE TO USE CAS3, AND SOME MAY NOT BE ABLE TO USE CAS2.5, MY BH-6 WILL NOT POST AT CAS2.5, OR CAS3, IT WILL ONLY POST AT CAS2.

 

**RAS# to CAS# delay(tRCD)**= 0, 1, 2, 3, 4, 5, 6, 7. I would suggest only using 2-5

 

This is the second timing that most ram companies rate there ram with. For example, you might see ram rated at 3-4-4-8@275mhz. this is the 4, in than situation.

 

2 yeilds the best performance, and 4-5(5 is usually overkill) yeilds the best overclock. Most rams will not be able to use 2, and reach there max OC.

 

 

*Min RAS# active timing(tRAS)*= 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15.

 

This is the forth timing that most ram companies rate there ram with. For example, you might see ram rated at 3-4-4-8@275mhz. this is the 8, in than situation.

 

This is a very debated timing. Some may argue that 00, 05, or 10 is the faster/most stable. but i really think there isnt a right anwser for this one, it all depends on your ram. But, if you need a good starting point, usually most/all rams can accieve there max OC on 10 tRAS, even if one of the other setting is faster.

 

 

**Row Precharge timing(tRP)**= 0,1, 2, 3, 4, 5, 6, 7. I would suggest using only 2-5.

 

This is the third timing that most ram companies rate there ram with. For example, you might see ram rated at 3-4-4-8@275mhz. this is the 4, in than situation.

 

 

2 yeilds the best performance, and 4-5(5 is usually overkill) yeilds the best overclock. Most rams will not be able to use 2, and reach there max OC

 

**Row Cycle Time(tRC)**= 7-22 in 1.0 increments.

 

7 yeilds the best performance, 15-17(i think 17 is overkill) yeilds the best stability/overclock. i would start at 15, and work your way down from there. Also, 7 is usually much to tight, for most ram.

 

FSB Bus Frequency= 200-456mhz in 1mhz increments, this is what is commonly called HTT(most know it as FSB)

 

Agp Bus Fequency= 66-100mhz in 1mhz increments. it is not neccasary to set to 67mhz to get a pci lock, like on other NF3 mobo's, but it wont hurt to do it, just for safety

 

LDT Downstream width= Auto(16bit), 8bit. i would suggest leaving on auto for best perfomance

 

LDt Upstream Width= Auto(16bit), 8bit. i would suggest leaving on auto for best performance

 

LDT/FSB Frequency Ratio= 1x, 1.5x, 2x, 2.5x, 3x, 4x, 5x. i would only suggest using 5x for use in combo w/ 200mhz HTT. Try 4x up to 235-245. 3x up to 245-265. and 2.5x from there on up. if your going for max HTT(like something over 300-350) try 2, 1.5 and 1x.

 

CPU/FSB Frequency Ratio= 4x-20x in 0.5 increments. THis is your CPU multipier(multipy this times your FSB Bus frequency to get you cpu frequency. i would suggest NOT using 4x, or 0.5 multis, because this puts your ram on a ratio. you may only us your stock multi, and lower.

 

K8 Cool 'n' Quiet Support= Auto(enable), disable. Mobo automaticly scales down VID/FID at system idle. DISABLE for overclocking!!

 

CPU VID Control= 0.800v-1.550v in 0.025v increments. VID means Voltage IDentification. This is simple the Vcore.

 

CPU VID Special Control= 104%, 110%, 113%, 123%, 126%, 133%, 136% above VID. you multipy this by CPU VID control to get your total Vcore. (113%=1.13, 104%=1.04)(so if Vcore is 1.55, and specail is 110% you would have 1.55v x 1.1=1.705v)

 

Chipset Voltage Control= 1.6v-1.9v in 0.1v increments. i would recomment up to 1.7v on stock passive air cooling on the chipset... up to 1.9 w/ active cooling, and perhaps a better HS...

 

AGP Voltage Control= 1.5-1.8v in 0.1v increments.

 

Dram Voltage Control= 2.5v-4.0v in 0.1v increments. This bios gives opions to go UP TO 4.0vdimm, NOTE:you must mod you 3.3vrail to use anything above 3.2v. your 3.3v rail must be 0.1-0.15v above the selected Vdimm.(ie for 3.5 vdimm you would need 3.6-3.65v 3.3rail)

[gadugger]

Try running on a divider.

There is almost no performance hit and should work well.

http://www.dfi-street.com/forum/showthread.php?t=40178

[gadugger]

9x200 I think 9 is highest multi for you and 5/6 divider.