AMD 2400+ and FSB problems

[multifacitedonyx]

Am I stupid, or could there be some other explanation? I got a 512mb stick of this Kingston HyperX PC4000 the other day, stuck it in my rig and all I can get is BSOD if I go over 208. Here are the cast of characters :

GA-7N400 Pro2 F8 BIOS
AMD Athlon 2400+ mobile
1 stick Kingston hyperX KHX4000/512R
TTGI 350W PSU

The system was running fine, Prime95 stable with a stick of GEIL PC3200 at 12.5 X 200 FSB for 2.5ghz, but I thought with the good deal on the Kingston ($99), I might lower the multi and up the FSB. Now I can?t get it to run at anything over 208FSB. I have tried;
12.5x208 = system freezes up
12x210 = OK with +.2v overvolt, but not so stable
12x213 = freeze
11x200 boots as 3200+
11x210 freeze
11x209 freeze
11x208 freeze
11x208 +.1v DIM overvolt and it works OK, but at 209 it will not boot to windows.
11x209 +.2v DIM overvolt and I get BSOD

this board only allows +.2v overvolt on the dimm, so I can't go any higher, which is suck because the GEIL is rated for 2.9

So what is the deal? Did I get a bad stick? Am I doing something wrong? Or can the CPU not deal with a FSB higher than 208 and it has nothing to do with the RAM?

Any suggestions?

 

[VIAN]

why don't you try lowering your multiplier to like 9.5 and then boost up your bus, and then after you have it where you want it then boost you mutli.

In the end if the bus doesn't move too far, you could always lower your RAM speed and get possible super low timings.

 

[multifacitedonyx]

Thanks, I thought about it, but came to two conclusions that made be not so happy with that solution.

1) I already lowered the multi to 11, so I should be able to get some better headroom on the FSB. It was running 2500, so at 11, shouldn't I be able to hit 225? Or is it not an equal trade off?

2) If lowering the multi does not let me get better FSB, why pay more for faster ram just to get the timmings? My Geil does 200 with 2.5 6-3-3 which is not fantastic, but it was $76.

Now I would either have to sell the Geil and run the Kingston at different FSB or timings, or just take the Kingston back.

Please, don't think I am knocking your suggestion. I may be missing something here as I don't know that much about timings and the like. So if I am making some bad assumptions, please let me know. This is a good price for PC4000 ram, and I would like to get the most out of it. What kind of timings do you think I could get if I was only using 200FSB rather than the rated 250 w/ 2.5-9-4-4?

 

[VIAN]

Don't assume that your CPU can do 2500 speeds. Clock it down to 2GHz. Then UP the bus.

I wouldn't pay for faster RAM for timings either, it was just a thought.

I don't know what kind of timings you could get because I don't deal with such high speed sticks.

I got a PC2700 to run at 220MHz 2.5-4-4-4.

Maybe you could try to run the Bus and the RAM in sync for better stability and performance from the start of the overclock. set your multiplier to a low level such as 9.5, Then set you fsb to 200 and your RAM to 100% and lower the timings as much as possible. Try increasing the FSB now.

Nforce boards, really good ones, do about 230 FSB I'v heard, so you're gonna have to lower the PC4000 speeds anyway.

Here is what I did.

 

[multifacitedonyx]

Maybe I was not clear. The CPU does 2500 with the old ram, the GEIL. It is stable at that speed, would do more but not stable.

What I wanted to do was keep the same speed, but up the FSB, so lower the multi AND raise the FSB. The PC3200 GEIL would do 200 FSB with 2.5-8-4-4 stable in sync with the CPU. If I upped the voltage it would do 2-6-3-3, but only at like 195 FSB.

The new Kingston PC 4000 is what I am having problems with. It will not do much over 200, unless I am doing something wrong.

 

[AWhackWhiteBoy]

the bartons and their mobos are known to not like FSB much,the only mobos i know of that almost certainly push past 220 with ease are the DFIs.

edit: what Geil ram do you have, the gold series? i have a gig of the gold series 400mhz 2-6-3-3 and it pulls 225 with my mobile barton.

 

[Dman877]

Originally posted by: AWhackWhiteBoy
the bartons and their mobos are known to not like FSB much,the only mobos i know of that almost certainly push past 220 with ease are the DFIs.

edit: what Geil ram do you have, the gold series? i have a gig of the gold series 400mhz 2-6-3-3 and it pulls 225 with my mobile barton.

Yup, sounds like a mobo limit.

 

[CHarrington]

Originally posted by: multifacitedonyx
2) If lowering the multi does not let me get better FSB, why pay more for faster ram just to get the timmings? My Geil does 200 with 2.5 6-3-3 which is not fantastic, but it was $76.

AMD processors benefit from RAM that is running at the same speed as the FSB and RAM with low CAS timings. I suggest selling the Kingston pc4000 and buying some OCZ 3700 sticks.

 

[multifacitedonyx]

Originally posted by: AWhackWhiteBoy

edit: what Geil ram do you have, the gold series? i have a gig of the gold series 400mhz 2-6-3-3 and it pulls 225 with my mobile barton.

I have the Geil Golden Dragon and it will do 2-3-3-6 under some conditions, but it is more happy doing 2.5-4-4-7.

So it looks like the general concensus is that my mobo does not like the higher FSB. That blows. Oh well, I guess 2500 with a 200mhz FSB is not too shabby.

Thanks for all the input.

 

[Falloutboy]

does the board allow you to overvolt the chipset if so try that