Asus P5B Deluxe - Nightmare!

[Leica]

I finally got my first ever Core 2 Duo. I chose what I thought was the best motherboard out there - the Asus P5B Deluxe, with Wi-Fi, etc.

My CPU is the E6300 - the 1.86GHz one.

Well I can't get past FSB of 315MHz!!! It is not the CPU, since if I lower the multiplier to 6x instead of 7x it still won't go past 315MHz.

I have tried upgrading the BIOS, upping the voltages for the North Bridge, etc.

I still can't get past 315MHz FSB. I am shocked and SO depressed. What is going on? Could it be my Power Supply? I got the new Zalman 460W Silent one. I have it connected to the mobo with both the 24 pin connector and the 8 pin one. My cooling is the Zalman 9500 "Jet Engine".

At 2.2GHz (315FSB) my temps with the Zalman running at 2700rpm are 35C idle and 53C full load.

What is going on???

Please help!

Thanks.

[batboy]

Most brickwalls nowadays are memory related. What RAM are you using? Run CPU-Z and use the memory tab to see what ratio you are running.

[Leica]

My memory is two sticks of cheap DDR2 667 DIMMs.

CPU-Z shows the SPD info as:-

Frequency 200-266-333
CAS Latency 3-4-5
RAS to CAS 3-4-5
RAS Precharge 3-4-5
Tras 9-12-12
Trc 12-16-20

But when I try to run it at FSB 320 I set the DDR speed as 640 (below the rated 667) still no POST!

My memory timings are Auto (controlled by SPD).

[Dragon Heart]

Seems you got a dud mobo ...

I know lot of ram issues related to P5B according to some bios

try if possible other bios , test other sticks too

[SLee]

Instead of using SPD, try manually setting the DRAM parameters.

[rainless]

I finally got my first ever Core 2 Duo. I chose what I thought was the best motherboard out there - the Asus P5B Deluxe, with Wi-Fi, etc.

My CPU is the E6300 - the 1.86GHz one.

Well I can't get past FSB of 315MHz!!! It is not the CPU, since if I lower the multiplier to 6x instead of 7x it still won't go past 315MHz.

I have tried upgrading the BIOS, upping the voltages for the North Bridge, etc.

I still can't get past 315MHz FSB. I am shocked and SO depressed. What is going on? Could it be my Power Supply? I got the new Zalman 460W Silent one. I have it connected to the mobo with both the 24 pin connector and the 8 pin one. My cooling is the Zalman 9500 "Jet Engine".

At 2.2GHz (315FSB) my temps with the Zalman running at 2700rpm are 35C idle and 53C full load.

What is going on???

Please help!

Thanks.

That's not a nightmare... I blew up two motherboards (not really it seems...), had a bike accident, broke my foot, spent the night at a hospital, and got suckered into buying a 6200TC all in the same day.

That's wasn't just a nightmare... that was the whole of Elm Street!

What ram are you using?

[Dragon Heart]

That's not a nightmare... I blew up two motherboards (not really it seems...), had a bike accident, broke my foot, spent the night at a hospital, and got suckered into buying a 6200TC all in the same day.

That's wasn't just a nightmare... that was the whole of Elm Street!



ROFL ... and you're still alive Rainless !!

surely were you overclocked too ... :santa:

Cheers

[rainless]

ROFL ... and you're still alive Rainless !!

surely were you overclocked too ... :santa:

Cheers

:beer:

[DumpALump]

Definitely set the Ram dividers. 5-5-5-15 and up the ram voltage to 2.2+

Set your voltages and locks correctly. Pretty much if you don't set everything yourself then it will try to auto adjust and that can cause problems with overclocking.

I haven't once come across anyone saying their P5B Deluxe could not get to 400mhz atleast. Could be a bad board, but thats very unlikely.

[batboy]

Never did answer my question. What does CPU-Z say your memory ratio is? If it's not 1:1, then manually set it to 1:1 ratio.

[dominick32]

The answer to this nightmare is probably something small and simple. Because unless the board is faulty, I highly doubt the mobo is not capable of 315 FSB. If you told me 460 to 500 FSB, thats the range of usual failure on these boards unless you get an Epox, Ross board that clocks to 560...:drool:

My p5b dies at 505 FSB exactly.
Before I gave NB 1.65v and SB 1.6v I couldnt even break 490 FSB. Southbridge voltage seems to have a decent impact on FSB, as well as NB cooling. What are your temps?

What bios version are you running? (if this hasnt been asked already)

[hUMANbEATbOX]

many people have noticed a "hole" in the fsb of the p5b-dlx. between 300 and 400 sometimes is not stable, or won't even boot. try jumping straight to 401fsb, see if that helps.

have you updated your bios? i thought this problem was solved with a newer release.

[dominick32]

many people have noticed a "hole" in the fsb of the p5b-dlx. between 300 and 400 sometimes is not stable, or won't even boot. try jumping straight to 401fsb, see if that helps.

have you updated your bios? i thought this problem was solved with a newer release.

Yeah. Thats what I am talking about. If he is using the latest bios 614, like he says he is than that hole should be eliminated.

[Leica]

I want to thank all you guys. The mystery is solved. You were right. My RAM sucks.

You see when I wanted FSB of 315 I chose the RAM speed of 630, which is below the 667 rated speed. So I thought how the hell can it be the RAM?

Well somehow it was. I upped the voltage of the RAM to 2.15V and now I am running FSB of 370 :)

I have ordered new sticks of DIMMS, two Corsairs 800 with CAS 4. So hopefully I too will get into the 400s for FSB :)

Thanks so much. You guys rock. And you know your stuff! Geniuses!!!

[Leica]

Never did answer my question. What does CPU-Z say your memory ratio is? If it's not 1:1, then manually set it to 1:1 ratio.

Sorry I thought I did. It was 1:1 as per CPU-Z. SO at FSB 310 it was 620 (or 310x2).

[Nautica]

Does this board have a hyperpath3 option like my p5w dh does? If it does I'd start by disabling that as your right around where that causes fsb problems if I remember correctly

[hUMANbEATbOX]

Well somehow it was. I upped the voltage of the RAM to 2.15V and now I am running FSB of 370 :)

I have ordered new sticks of DIMMS, two Corsairs 800 with CAS 4. So hopefully I too will get into the 400s for FSB :)

why order new ram? did you see what your current ram can do with 2.45v? i run my ram at 2.35v, 500mhz, 4-4-4-10. you might not be able to get em that high, but 400mhz should be dooable if you did 370mhz with only 2.15v.

[Leica]

why order new ram? did you see what your current ram can do with 2.45v? i run my ram at 2.35v, 500mhz, 4-4-4-10. you might not be able to get em that high, but 400mhz should be dooable if you did 370mhz with only 2.15v.

For starters what is the default voltage on RAM?

To be honest I am scared to run them at even 2.15V. Can't they overheat and stuff? Is it really safe to go as high as 2.45V on them?

Anyway I did order faster RAM because I have my sights now on FSB 450-500MHz ;) Yes I am being greedy...

[hUMANbEATbOX]

default voltage on ram varies by manufacturer/speed/timings. some ram is rated 2.2-2.4v STOCK!:eek:

if you are looking to get 500mhz out of any ram, i would think that more than 2.15v will be needed, unless you use crap timings, or you buy VERY expensive ram to begin with (like $500).

[rainless]

default voltage on ram varies by manufacturer/speed/timings. some ram is rated 2.2-2.4v STOCK!:eek:

if you are looking to get 500mhz out of any ram, i would think that more than 2.15v will be needed, unless you use crap timings, or you buy VERY expensive ram to begin with (like $500).

I guess my 5-5-5-12 would be crap timing :)

It's true though... I can run at 4-4-4-12 at up to 3ghz at 2.1 volts, but I don't think I can even do 3.2ghz at that voltage (I use CAS5). Perhaps with another .05 volts I could do it, but the DS3 doesn't scale like that. You can only increase voltage in .1 increments.

[OC-overkill]

Not sure if this will help, but it helped me. I also had a 315 FBS wall. what I did was lock the PCI-Express to 100, PCI-33 and Disable Static read control. Give it a try. It might help.

[bail_w]

why order new ram? did you see what your current ram can do with 2.45v? i run my ram at 2.35v, 500mhz, 4-4-4-10. you might not be able to get em that high, but 400mhz should be dooable if you did 370mhz with only 2.15v.

because his DDR2-667 are el cheapo dual kit. Unlike yours, G Skill HZ DDR2 -800, obivously you can hit 500 mhz with 2.35ghz because it use Micron D9

[greenmaji]

because his DDR2-667 are el cheapo dual kit. Unlike yours, G Skill HZ DDR2 -800, obivously you can hit 500 mhz with 2.35ghz because it use Micron D9

there is el-cheapo DDR2 now can do 400FSB+
It just needs a boost.

It depends on the IC's ediphias clock fine, nothing DDR2 1200 but that isnt nessariy to get over 315FSB, give it some Vdimm and see what they can do, then if its a no go look into new ram.

[batboy]

I personally would not recommend 2.45v unless you have taken special consideration with cooling. That stuff is more for extreme overclocking and pros like HBB. But, I run 2.2v alot. Almost any DDR2 can handle 2.2v. Even 2.3v is probably ok if you have adequate case ventilation.

[hUMANbEATbOX]

That stuff is more for extreme overclocking and pros like HBB. But, I run 2.2v alot. Almost any DDR2 can handle 2.2v. Even 2.3v is probably ok if you have adequate case ventilation.

WOW, i am very flattered! just know bat, without you on these forums, i would know very little. when i joined some 4 years ago, you were very helpful, and i have always admired how you try to help anyone out, from newbie to experienced vet. ;) wish i saw you around more often. :)

to bail_w, I know that his old rams would never see 500mhz like mine, but there is no harm in seeing what they will do given a bit more juice. if he could have gotten them to 400mhz (which he was very close to with only 2.15v), then that COULD have saved him the money on new rams.

but then he had to go and say that he was looking for 450-500mhz...DOH, that would require new ram, i'm afraid (the new ram will STILL require more than 2.15v to do this though, IMO ;)).

[NO1B4ME]

I finally got my first ever Core 2 Duo. I chose what I thought was the best motherboard out there - the Asus P5B Deluxe, with Wi-Fi, etc.

My CPU is the E6300 - the 1.86GHz one.

Well I can't get past FSB of 315MHz!!! It is not the CPU, since if I lower the multiplier to 6x instead of 7x it still won't go past 315MHz.

I have tried upgrading the BIOS, upping the voltages for the North Bridge, etc.

I still can't get past 315MHz FSB. I am shocked and SO depressed. What is going on? Could it be my Power Supply? I got the new Zalman 460W Silent one. I have it connected to the mobo with both the 24 pin connector and the 8 pin one. My cooling is the Zalman 9500 "Jet Engine".

At 2.2GHz (315FSB) my temps with the Zalman running at 2700rpm are 35C idle and 53C full load.

What is going on???

Please help!

Thanks.

Nightmare LMAO,,, Nightmare is like when i got run over by a car and was in the hospital for 8 months.