amd64 cpu unstable at any high HTT?

[jdlo56]

specs

AMD3400+ 2.2ghz CG 1mb Claw (regular, not DTR or mobile)

DFI UT 250gb NF3 (9/12 BIOS)

1x512mb Gskill PC3200 (samsung TCCD)

WD 120gb 8mb IDE (not SATA)

x800XT PE

 

i cant seem to run my CPU at any HTT higher than 275HTT, at any multiplier

i've tried

290HTTx 8 (2320ghz)

1.6Vcore

1.8V chipset

2.5 LDT

1:1 memory 2.5-3-3-6 (memtest stable @2.7V)

.......not stable, PC would crash in windows and reboot

 

on the other hand, 250HTTx10 runs fine, 1.7Vcore, even with 1.7VChipset

 

I thought that HTT didnt matter as long as CPU speed isnt too high? I see a lot of high HTT with middle to low multipliers, especially with the DFI board (like 7x300HTT, which doesnt work for me either)

is it possible that my CPU doesnt like high HTT, regardless of the multiplier?

[Heidfirst]

Have you considered that maybe you are pushing your RAM too far?

[jess1313]

Originally posted by Heidfirst

Have you considered that maybe you are pushing your RAM too far?

 

yeah man, try putting your ram on a ratio, and if this alows you to increase your HTT speed then

 

 

 

try at 1:1 with these timings

 

cas=3

tRCD=4

tRP=4

tRAS=10

CPC=disabled

tRC=15

tRFC=17

 

Read Preamble=6ns(and maybe try 7ns)

 

GL

-Jess-

[jdlo56]

i dont think the memory is at fault, since its rated to run at 275mhz (DDR550) with 2.5-3-3-7 timings (Gskill memory)

 

and i memtested at 275mhz, 2.5-3-3-6 @2.7V, no errors in test5 loop

 

275HTTx9 is Prime95 stable, but is not 3D stable....my x800XTPE crashes 3dmark2005 and results in VPU recovery...even when Vagp is 1.7V

 

Chipset at 1.8V doesnt help either....

[jess1313]

Originally posted by jdlo56

i dont think the memory is at fault, since its rated to run at 275mhz (DDR550) with 2.5-3-3-7 timings (Gskill memory)

 

 

ah ic.

 

i would try moving the ram around in different slots, lowing your LDT multi, and disabling CPC.

 

also, try disableing AGP fast writes if you could

 

PS. hey man, if you could make you up a Signature, that tell all your Hardware, alot of times it give us a better chance at figuring out your problem:nod:

 

GL

-Jess-