DS3 fsb limit?

V|per

V|per

V|per

Soldato
Joined
11 Jun 2005
Posts
2,643
Location
Worcestershire
Righty, my 680i is being RMA'd, so i got meself a stopgap DS3.

Installed the thing alright, upped the bios to f11.

Now i have an e6400 that was happily sat at 3.5ghz, and boots to windows at 4ghz (not at all stable though)

Now i firstly started to look desgutedly at the bios when i found i couldnt run the mem unlinkd, so i loosened the timings to 5-5-5-15 (ocz platinum pc6400 c4 2gig kit) and upped the voltage to +0.3v on the ram and set the devider to x2, set the cpu vcore to 1.575 (i know its high, but its a cold chip and this is what was required for 3.5ghz in the 680i)

f10, y, and the thing turns off :eek: and keeps restarting, this worried me for a bit untill it happened a few times after changing something in the bios, so i assume it's the way the bios gets saved to and also the way it recovers itself (first question, is this so?)

Any ways, after some fiddleing, i can only get it to boot (and is perfectly stable by the way) at 400mhz can adjust all the voltages quite high upwards and this doen not cause any boot issues, only when i up the FSB past 400mhz, so im assuming this means 1 of 3 things, cpu cant handle it (which it can...) ram cant handle it (i've had it at 1200mhz, so im assming this is not the case..) or the motherboard wont go past 400fsb...

Would this be a safe deduction? Anything else you guys think i should try?

Cheers!
 
I think it stops and restarts after a strap change. And yeah it goes into a short restart loop after a bad overclock. Longer if it's the memory related.

Have you raised the PCI-E Freq?

The DS3 *should* be fine for 500mhz+.
 
My DS3 rev 2 is running happily at 450 FSB, but then u may have got a bad one that doesnt like it, doesnt seem likely though.
 
ive got value PC-5300 on my DS3 running at 910MHz with no problems, the restart power on/off loop is the board reseting after a bad overclock to fail-safe defaults. have you taken up the fsb and MCH voltages to +1?
 
My old DS3 got to 470mhz fsb with no special treatment. Make sure to cool your northbridge with a fan or uprated cooler though! :eek:

Make sure not to overvolt everything. When i first got mine i ramped everything up and couldn't push past 400mhz. When i tried again later i only upped the ram voltage by 0.5v (Geil which is rated for 2.3v) and chipset voltage by 0.1v. That was it! :)

Great boards!

gt
 
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well, i can cope with 3.2ghz for a few days whilst my 680i gets replaced, no point in me trying out 2 more cpu's that have somehow managed to end up with me though, i'll wait untill me board is back :)
 
Cob said:
I think it stops and restarts after a strap change. And yeah it goes into a short restart loop after a bad overclock. Longer if it's the memory related.

Have you raised the PCI-E Freq?

The DS3 *should* be fine for 500mhz+.
Click to expand...
i cant get mine past 460 stable, ive followed everything in the overclocking threads
 
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