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[Duvie]

I am aware thugs was a sis chipset and mine was an i845 chipset....

However this is an msi issue as they could release a bios to offer more ratios above a certain speed, but so far have chosen not to...Asus has an i845 mobo and I believe it offers different ratios then mine...


My asus si chipset board according to thugs just released a bios yesterday adding a 4:5 ratio above 133fsb...It only offerred 1:1 after 133fsb....

 

[Tom]

I don't have an i845d motherboard so I'm not an expert, but I thought that people using the Asus i845d motherboard were complaining about having faster memory scores at 132fsb than at higher FSBs because the 1:1 memory ratio kicked in at 133fsb. I think this might be a limitation of the chipset as designed by Intel.

Of course, I could be wrong.

 

[Duvie]

Maybe!!!! But I wonder why asus just kicked in a ratio addition to the sis board after 133fsb...Does Msi ultra offer same 4:5 ratio? It must not have been a chipset limitation even though it was originally excluded in availability.I think that the i845mobo may still support it, but it was left out cause who would have thought the p4 or any chip could be this fsb ocable with a locked multiplier....

I have also seen reports of many different ratios even on i845 mobos...Why does MSI on the i845 lock the 1:1 ratio after 123 but before 127??? I have had 2 ppl pm me and say they have seen same thing....


LOL...I wonder why MSI on the i845 board offers 100-200 mhz fsb freq....Who in the heck is going to get that with a locked multiplier p4???

 

[ElFenix]

wow dead parrot sketch those are some damn fast times! you should email that in, it'd be the second best time yet

 

[THUGSROOK]

 

[THUGSROOK]

 

[Occifer]

THUGSROOK beats Mr. Anand to the punch with the P4a 333 review!

 

[oldfart]

<< Asus i845d motherboard were complaining about having faster memory scores at 132fsb than at higher FSBs because the 1:1 memory ratio kicked in at 133fsb. I think this might be a limitation of the chipset as designed by Intel. >>


Nope, its an ASUS (and others) limitation, not the 845 itself. My EPOX 4BDA2+ allows 3:4 mem ratio at any FSB. It also has a PCI/AGP lock feature that locks the PCI/AGP @ 33/66 at any FSB. This is THE i845 board to get. I'm playing around with the new setup now. So far I have my 1.6A @ 2.3 GHz, 144 FSB, 1.55 Vcore, 384 MHz DDR PC3100 speed (Samsing PC2700). I still have a lot of tweaking to do. Not sure where I will wind up running it yet.

 

[Jwyatt]

Thans for the benchies Thug.

 

[THUGSROOK]

updated

 

[oldfart]

Got my 1.6A @ 2.4 GHz, 400 DDR now.

1.6A retail HS/Fan
Epox 4BDA2+ (i845 mobo)
(1) 512 Meg Samsung PC2700
600 (150) MHz FSB
1.675 Vcore
3:4 mem, 400 MHz DDR

Sandra 2002 mem bench 3037/3031

Gota love a 50% overclock!

 

[jinks]

Hi Thugsrook,

I am new member to this forum and I have just upgraded to Asus P4S333 with same spec as yours except that I have GEforce 3Ti200 and 512mb Kingmax memory Pc2700 .
I notice that you are using P4S533 Bios version 1007c. Wheras when I downloaded and flashed P4S533 the Bios version was 1006c on Asus website whereas my system still shows P4S533 but the version is 1005c while booting.

Could you guide where you downloaded your bios version from and what Bios version does your system display while booting up.

Also is their any way I wether I have a true DDR Ram Pc2700 module or if it is a remarked one. I hear that lot of kingmax Pc2100 are remarked and sold as Pc 2700 modules..

Regards
JinksText

 

[THUGSROOK]

check this thread for more P4S533/333 Bios info

check you memory chips for a -5 or -7a marking on the kingmax.

 

[JTKGY]

Thugsrook,

Do you mind posting what memory settings you are using?
Please post the timing, voltage...
I can't get mine to run reliably at even 376ddr with conservative memory
timing. I have the same Corsair XMS PC2700 512MB. I went out and get
a Soyo Sis645 board and ditch the Gigabyte one...
Is it the board then?


Whats is the max safe voltage for memory?

 

[THUGSROOK]

JTKGY
all memory setting are set by SPD specs. (auto)
voltage is 2.5v except for the 400DDR setting which required 2.9v to stabilize.

max safe voltage? well the obvious answer is 2.5v
im running 2.9v now - ill report back if i have any problems at that voltage.
(2.7v was not a problem)

make sure you use DIMM slot 0 - closest to the cpu.

HTH

 

[JTKGY]

THUGSROOK,

Thanks for the quick reply...
My soyo doesn't read the SPD spec or it does but not showing to me...
I will set it to Auto... and try again... I will also bump the voltage to 2.9...
(It's at 2.8 now)

I know my cpu could run reliably at 154fsb (1.6A NW)... it ran Prim95 for 6 hours
until the first error... (back on Gigabyte)

What's the SPD spec for Corsair XMS PC2700 512MB?
I believe it's 2/3/3/7/2 ??

 

[THUGSROOK]

no, the motherboard will not show you the SPD specs when set to auto.
it will prolly show you 2.5/4/4/7, but that may not actually be what its set at.
use SciSoft Sandra 2002 to find out your actual Cas settings when set to auto/SPD.

 

[THUGSROOK]

oh yea - the oldfart had to chime in with his sweet i845 running a 150fsb 3:4 ratio 400DDR ...da bastid

i would love to have a 3:4 ratio above 132fsb :disgust:

 

[MilkPowderR]

THUGSROOK, the benchies you posted on the 3D games and 3DMark 2001, is that with your GF3 Ti500 card OC'ed or at default?

 

[oldfart]

<< oh yea - the oldfart had to chime in with his sweet i845 running a 150fsb 3:4 ratio 400DDR ...da bastid >>


Yup. Gotta keep the SiS guys in line .


<< i would love to have a 3:4 ratio above 132fsb :disgust: >>


Head on down to your local EPOX-Mart and pick up a 4BDA/(2+). This setup rocks. Fast and stable as you could ever wish for.

 

[THUGSROOK]

JTKGY SPD specs change as the fsb/mem ratio changes - and i cant run 166fsb 1:1 ratio so im not really sure what the "real" specs are. id say Cas2/2/2/7/2. at 4:6 400DDR its 2.5/4/4/7/2.

MilkPowderR i clock the card "mildly" to 255x550. for me thats a very safe clock to run bechmarks like this and not worry about vid card stability. my actual OC is 260x571.

oldfart na, gotta keep you i845 guys in line

 

[dbwillis]

Good info!

 

[JTKGY]

Hmm... for those that claimed able to overclock at certain speed..
What did you guys run to make sure that it runs stably?
I use memtest-86 and prime95... at 400ddr memtest-86 would just die with
tons of errors... even though I have the Corsair XMS PC2700 512 and
1.6A NW...

I am running Soyo P4S Ultra... should I just get the Asus board (and give
up all the other features from Soyo for the roughly same price?)

Opinions needed.
Thanks,

 

[oldfart]

I use Prime95, Serious Sam, UT to test stability. Prime95 is very sensitive to mem errors. SS will crash if there is any instability in the system, so will UT to a somewhat lesser degree. I'll have to check out memtest-86

 

[JTKGY]

THUGSROOK,

Ya.... Thanks for the update... I haven't try running 2.5/4/4/7/2 yet..
my timing is "always" more aggressive than that... I will change mine to that tonight
and try again...



Looking at my Soyo settings... alot of them I do not know what they do...

System Performance (Normal/Fast/Turbo)
Spread Spectrum (???) (Enable/Disable)
No PCI divider but
Auto Detect DIMM PCI clock (Enable/Disable)

for a 2.5/4/4/7/2, I assume that
Memory:
CAS = 2.5
RAS Active Time = 7
RAS PrechargeTime = 3 ==> what u guys setting this at?
RAS to CAS delay = 4
ACT to ACT delay = 4
Write RecoveryTime = 2

R/W turn around time = safe (safe/normal/fast/slow)
Read Latency control = safe (safe/normal/fast/slow)
Time constraint control = slow (normal/slow)
GW Write mask AGP request = enabled
AGP fast write capability = disabled
Refresh cycle time = tRAS + tRP + 1t (what is this?)
DRAM addr/cmd rate = Auto (1t/2t) (what is this?)