Fitting Core 2 Duo E8400 on an Asus P5LD2-x/1333 (FSB Problem)

[J_Sark]

The thing is I have this motherboard with the latest bios version (0214) http://www.asus.com/Motherboards/P5LD2X1333/#support_CPU

Under the impression that it would support it, I bought a Core 2 Duo E8400@3.0
Now here comes the funny part, the cpu works, but the FSB is set to 266, which means my 3.0 Ghz cpu only works at 2.4 Ghz.
When I try to set manually the FSB to work at 333, the computer just doesnt boot (no post, or at least I can't see it). It goes up until 295, if I put more problems occur.

I thought I would just have to set the FSB to 333 and link the memories to an appropiate speed and everthing would be nice and easy (If the mobo says it supports 1333, why shouldn't it just run with that speed)
From all the guides I have read the next logical step would be to change the vcore, but I don't find any option in my bios to change these parameters.

Long story short, motherboard says it supports 1333 FSB but runs at 1066 and won't boot with 1333 FSB speed. Does the manufacturer lie, or am I missing something?

I'll put some screens of my bios in case it's helpful

http://imageshack.us/a/img593/3921/t06n.jpg
http://imageshack.us/a/img855/6756/2nzn.jpg

Thank you very much and best regards!

I forgot to say I'm using 2x2 GB DDR2 800 (although the motherboard only supports 667) and when I set the FSB to 333 I set the the DDR2 value to 667

¿Could it be a PSU problem?

It's a B-Move 600W, with 2 12V rails of 19amps each one. I know it's crap but my budget is nonexistant at the moment.


I update with a cpu-z screen:
http://imageshack.us/a/img571/3717/86ab.jpg


EDIT: Apparently system posts when I leave the PCI-E value on AUTO, although my PSU seems to have troubles running the system (at least I've been able to see my CPU running at 3.0 GHZ for a few seconds (I didn't want to force it, in case my PSU would cause any problem).
I'd still would appreciate the input about why this happens, because it doesn't make any sense to me (I read in every guide to set PCI-E value to 100)

 

[jpoos]

Just remembering an old LGA775 asus board from way back - try setting the fsb to 333 & the ddr2 value to a lower one(or two) than 667. fsb will effect memory speed & the memory speed information may just be assumed speeds linked to memory dividers - the memory could be causing the fault by being inadvertently heavily overclocked. Check actual memory speeds using CPU-Z, under memory tab

 

[J_Sark]

If I remember correctly the memory wasn't the problem, for example I tried setting manually the CPU multiplier to it's minimum value (it allows to choose between 6 and 9) and the memory to it's minimum value too, and the only time I was able to make the computer post with a FSB higher than 295 was setting the PCI-E value to AUTO; if I establish the value as 100 as I read everywhere I have to do, the computer won't even post.
I'm not in a position to test estability because my PSU seems to be having problems running the computer as it is, so I'd rather not have the computer running for a long time with a higher FSB than default. When I buy a new PSU I will try and I hope everything works fine, but I'd rather have a slow CPU than risking the entire PC.
Thanks for the help, and best regards!

 

[jpoos]

Could purely just be a motherboard/chipset weakness. 945GC which is used on it only officially supports 533/800 FSB. Anything above that is reliant on overclocking as stated in the product information. Perhaps it's just that the max overclock you can achieve with it is 295 - Seems more likely given the model of motherboard (it's certainly not an enthusiast model designed with overclocking in mind) I'd have a dig & see if there was a P35/X38/P45/X48 chipset mobo going for dirt cheap. most where very reliable solid overclockers, giving you the ability to drive that cpu even further. Asus P5K series comes to mind.

Or could just use this as an opportunity to upgrade. even a bargin Pentium G2020 will match the 8400 for performance & it gives you an upgrade path 😀