E8400 only to 399 FSB

Wolfcastle

Senior member
Apr 7, 2000
274
0
0
400FSB - I can run small FFT on P95 no problem, but when running P95 memory intensive test, it crashes consistently within 2 seconds.

399FSB - Seems stable on all tests so far.

On 400FSB, I even tried to up the latency timings to all highest settings and increased ram voltage to about 2.3V, but that made no difference at all. I also upped VTT and MCH by one setting higher just to see if that did anything. None of that did anything for the P95 memory test.

I'm pretty satisfied and don't want to order faster RAM just to get some more speed out of the CPU, but are there any obvious reasons why the RAM would just give out at 400FSB, but not 399FSB?

I've successfully used the RAM at 800MHz with lower FSB settings before with a different CPU.

---------------------
E8400
Abit IP35-E
HP PX976AT DDR2-5300 (667MHz) - 4 x 1GB
 

akhilles

Senior member
Nov 6, 2007
336
0
0
^^^ What he said. Here's a list of my settings in bios. You can try, but I make no guarrantee it will work for you:

445
x9
1:1
100Mhz
manual
1.425vcore
2.2vdimm
1.2vtt
1.33vmch
1.50vich
63%
4-4-4-12-55@2T
 

aigomorla

CPU, Cases&Cooling Mod PC Gaming Mod Elite Member
Super Moderator
Sep 28, 2005
20,905
3,292
126
could also be a FSB hole in relationship to your chip and board.

Try giving it a bump to 415fsb. Skip ranges.

C2D's have a nasty fsb wall/hole where they dont like to sit at. Go higher or lower, they run great tho.