Memory Bus Speed 400Mhz ?

[Mir96TA]

Which motherboard have a 400Mhz Bus Speed ?
Asus P4P800-VM Vs Giga-Byte GA-8IG1000MK

 

[Away]

Both support a 400mhz FSB.

 

[Mir96TA]

Originally posted by: Away
Both support a 400mhz FSB.

Please Explain this FSB 200 MHz and this Asus WeBSite. Read the forth Row

BTW I am talking about Memory Bus speed not CPU Bus Speed

 

[Peter]

"400 MHz" is marketing bull for 200 MHz DDR. Don't get confused.

 

[Mir96TA]

LinkThey why my Dell Report Faster Here is the

 

[Mir96TA]

BTW my Dell is a SC400 (875Chipset)

 

[rise]

correct me if i'm wrng, but its because its "quad pumped" or something like that. the actual is 200 and it sends 4 instructions per clock cycle.

at any rate, i have the p4p800-vm and it supports 400/533/800.

 

[Mir96TA]

408-41
I spoke to Tech Guy at Asus name David; showed him Asus WebSite; He concored me Its not supporting 800Mhz

 

[Peter]

Originally posted by: rise4310
correct me if i'm wrng, but its because its "quad pumped" or something like that. the actual is 200 and it sends 4 instructions per clock cycle.

at any rate, i have the p4p800-vm and it supports 400/533/800.

P4 CPU bus is quad-pumped. Actual frequencies are 100/133/200 MHz; during data phases, four bits per cycle are transferred. Everything else (addressing and other misc latencies) runs at 1x.

 

[rise]

thank you Peter

 

[Mir96TA]

Spoke to Peter at Giga Bite they it will run at 800 FSB.
Why other test gives me wrong information ?

 

[Mir96TA]

Originally posted by: Peter

Originally posted by: rise4310
correct me if i'm wrng, but its because its "quad pumped" or something like that. the actual is 200 and it sends 4 instructions per clock cycle.

at any rate, i have the p4p800-vm and it supports 400/533/800.

P4 CPU bus is quad-pumped. Actual frequencies are 100/133/200 MHz; during data phases, four bits per cycle are transferred. Everything else (addressing and other misc latencies) runs at 1x.

Peter, That is what I use to think too, till I notice this.
My Dell reports its FSB is running 800Mhz Here the Pic off 3Dmark software
And here is the What Asus comes up 3D mark
On Asus MB Comprassion WebSite its show this Pic
When you Glance the WebSite off MB you see this Pic

 

[Mir96TA]

BTW I have Dell SC400; It got P875 Cantwood Chipset

 

[rise]

i always read it off this asus site

http://usa.asus.com/prog/spec.asp?m=P4P800-VM&langs=09

its interesting though how 3dmarks read it different ways. anyway, it is what it is.

 

[Mir96TA]

Originally posted by: rise4310
i always read it off this asus site

http://usa.asus.com/prog/spec.asp?m=P4P800-VM&langs=09

its interesting though how 3dmarks read it different ways. anyway, it is what it is.

According to Asus Website; this can't doo 400Mhz Memory Bus SPeedPic( Since Asus Web Site always goes down)

 

[rise]

neither can the 875 just like peter said. its all how they arrive at whatever figure they want to market.

i can't even read that pic, that is the asus web site i linked, works fine for me and the board does as well.

 

[Mir96TA]

Finally I say I will notice side by Side; so
I did the Remote Desk and run the Everst; I got shocked to notice
Bus Width is 64Bit on Asus
Look at memory Bus Width

Then I thought I migh have not installed the Memory in right Bank
so I confirmed the Memory Banks and Bios Post Screen
On Post screen it shows its running in Dual modePost Screen Shot
and what hell is Tiled Mode ?

 

[Peter]

Everest might be misrepresenting. Run a memory throughput benchmark and compare those figures.

 

[Mir96TA]

Here is the Pics of Benchmark off reading.
I have also add the Ecs Via Chipset too. Man Via is GodDamn Bacnhout :|
Dell Read
Asus Read (P865 GV)ECS Via
Now here are some Write Benchmark
Dell Write
Asus WriteEcs Write
Here is Real Deal Latency Benhmark
Dell Latency
Asus Latency
ECS Latency


Ecs MB have following
CHIPSET VIA® PT800CE & VT8237

North Bridge: VIA® PT800 verCE

South Bridge: VIA® VT8237

Asus MB have
Intel Springdale-G MCH
Intel ICH5
Dell have
P875 Chipset :thumbsup: