Perplexing Issue

Wipster

Wipster

Wipster

Associate
Joined
22 Dec 2006
Posts
118
Hey all,
Can someone see if they can spot the problem? I have these components...
GA-X38-DQ6 BIOS.v F7
E4500
Geil PC2-6400 Ultra low stuff

I wanted to run my RAM at 1:1 at its stock (800Mhz) , so I reduced the CPU multi to 6 to be on the safe side, upped the fsb to 400 with a memory multi of 2.00D, left the motherboard guessing the timings to be on the safe side and did all of the BIOS options talked about in the forum sticky (except Vcore of 1.45 as that seemed a bit excesive)
But when I booted the POST said 390x6 and CPU-ID confirmed it.... I tried 405Mhz but still the same 390x6.

Did I miss something? I have read reviews of it going beyond by a long way...
 
No one? this is quite a strange problem and as such a little worrying.
On the plus side I seem to have the computer stable at 3.2ghz air with core temps of around 46c (1.25v).
One last thing what is a 'safe' operating temp for the motherboard because I can see at stock load it runs quite warm at 43c
 
Are you using control+F1 to get advanced options in the BIOS? I'm assuming its the same on the X38 as all gigabytes other motherboards...

Can you try 7x400 or 8x400 and see if its wrong as well?

43C isn't warm for the motherboard really - maybe a slight indication of less than optimal airflow but unless the CPU or chipset is getting very warm its nothing to worry about.
 
Yes I am using Ctrl + F1, I dont seem to beable to see any new options but maybe that me not looking hard enough.
400x7 doesn't start atall it just boot cycles and 400x8 starts up but shows 393mhz in POST.
 
Possibly an FSB wall on your CPU at ~400mhz.

Maybe try going as far as 415x7 incase the actual board has an FSB hole.
 
I'm not familiar with the X38 Gigabytes, but their P965 and P35 versions claimed to try to find a stable setting when they were pushed too far. Tho in reality they just rebooted several times and reset the FSB to default. Maybe they've managed to get the feature working in X38.


Have you tested the memory at 800mhz with the FSB at 200mhz to ensure that it's not the memory that's causing the issue?
 
Ok its been a while but I finaly got round to flashing down F6 and I have the same problem, setting to 400Mhz gives 393 and setting to 410 gives 394 on both POST and CPUZ.
A friend has the same CPU and his goes above 400mhz on a P35 mobo so its not a CPU bottleneck as I first thought.... I will get my hands on a E2160 from another mate to see if its the motherboard or just the combo.

Wip
 
Well I have a dialog going with gigabyte so hopefully something will come of it.... anyone else who has a x38-dq6 have the same problem? what FSB's can you get up to?

A note about firmwares for those who are interested, when running f6 the cpu seemed to run a few degrees cooler then the f7, but it was unstable at my f7 overclock and just crashed the system after a while under load.

f6 < f7 for oc stability.
 
Ok so just an update on this to make it full circle and incase anyone else has the same issue.
After a bit of bugging and questions back and fourth I got this responce;
We’ve noticed this FSB issue; we’ll fix it in the near future.

It is because the divider limitation of the clock generator when strapped at 200MHz (default E4xxx FSB).
Click to expand...

So a fix is on the way :)
 
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