Gigabyte EP45 Bandwidth 1333+ PL4

[hicookie]

Gigabyte EP45 Bandwidth 1333+ PL4

Gigabyte's upcoming beta bios for EP45 serial
has improved DDr2 bandwidth to DDR2-1333 and higher.

tip: load optimized,in MIT select divider of 4A(266A) or 4B(333B)
change vid to match your porcessor or leave it auto then, leave bios
if your D9GMH or D9GKX not stable or need to improving latency by PL
add more voltage both on Northbridge(MCH) & DDR2 voltage.

i'll update other bios soon.
for GA-EP45 DS3R, DL this bets bios F9L
http://pic.xfastest.com/hicookie/Gig...h/ep45ds3r.f9l

Testbed:
INTEL E8600 STOCK HSF
GA EP45 DS3R,F9L
Team Group, Xtreem DDR2-1300 2GBkit
CL6-6-6-18 2.35v-2.45v
WD 250GB SATA
HighPower 1KW
NV 7900GT

DDR2-1333 CL5 & PL:4 Bandwidth vdimm: 2.25v


DDR2-1333 CL5 Super Pi 32m vdimm 2.25v


555FSB & 1333 bandwidth near to 11k,and low-latency at 47.3ns


some other bandwidth,
DDR2-1360 cas 5


FSB600 & 1200C5


DDR2-1400+ valid

[[XC] gomeler]

Very nice Hicookie, that DDR2-1360 shot has some impressive numbers.

[hicookie]

Very nice Hicookie, that DDR2-1360 shot has some impressive numbers.

maybe your moudle could be better, just need new bios
this pair not through cherry pick, just bought from teamgroup.

[eva2000]

nice is there such a bios for EP45 Extreme ? I'm using F6c dated 29/7/08 right now.

thanks

[zsamz_]

ut p35 a little better
just got my e8600 i should do better when i get more time

[hicookie]

nice is there such a bios for EP45 Extreme ? I'm using F6c dated 29/7/08 right now.

thanks

george, ex line will done later, for other EP45 ddr2 already done.

[Pt1t]

george, ex line will done later, for other EP45 ddr2 already done.

got you earlier bios Than F6g for EP45-Extreme ?


I tested Last one F3i for EP45T-Extreme, and it seems very good.
http://www.overclex.net/data/images/...me_600_3_5.PNG

[Zeus]

Thanks for showing PL4 actually is possible on a P45 chipset, it just ain't happening on any Asus board i've seen so far.

Can you run PL4 with 4:5 divider also?

[Venom-Crusher]

awesome PL

[Tony]

tRD rule:

tRD-(CLS / memory ratio) = A
FSB strap / memory ratio =B

Is A>B if yes then board will boot

tRD =4
CLS 5
Memory ratio 1
FSB strap 2.75 for 600fsb

4-(5/1) has to be greater than 2.75/1
-1 is not greater than 2.75

So im wondering how P45 is even booting at 600fsb TRD 4 cas5 1:1?

Am i missing something here, did Intel add something we do not know about?

TRD 4
CLS 5
memory ratio 2
FSB strap 1.25

333fsb 1:2 ram ratio so 2x333 for 667 or 1333

4-(5/2)=1.5 A
1.25/3=0.625 B

is A>B yup so 333fsb TRD 4, 1:2 ram ratio for 1333 would work.

I just don't see 600fsb 1200 ram TRD4 cas5 working unless P45 changes the rules. Im not dissing here, i want to know what has changed?

Did i do the math wrong?

[hicookie]

update Enhance Memory performance

EP45 can reach DDR2 1333 or 1400 dual channel !

EP43 can reach DDR2 1200 or 1333 dual channel !

EP45


EP45-Extreme F6h
http://pic.xfastest.com/hicookie/Gigabyte/EN/ep45ex.f6h

EP45-DS5 F10j
http://pic.xfastest.com/hicookie/Gig...EN/ep45ds5.10j

EP45-DS4P F6g
http://pic.xfastest.com/hicookie/Gig...N/ep45ds4p.f6g

EP45-DS4 F8j
http://pic.xfastest.com/hicookie/Gig...EN/ep45ds4.f8j

EP45-DS3P F7f
http://pic.xfastest.com/hicookie/Gig...N/ep45ds3p.f7f

EP43

EP43-DS3R F8c
http://pic.xfastest.com/hicookie/Gig...N/ep43ds3r.f8c

EP43-DS3 F8c
http://pic.xfastest.com/hicookie/Gig...EN/ep43ds3.f8c

EP43-S3L F7b
http://pic.xfastest.com/hicookie/Gig...EN/ep43s3l.f7b

[hicookie]

update,EP45- DQ6

http://pic.xfastest.com/hicookie/Gig...EN/ep45dq6.10k

[eva2000]

thanks hicookie F6H looks good to be so far with new cpu

[MACMAC]

tRD rule:

tRD-(CLS / memory ratio) = A
FSB strap / memory ratio =B

Is A>B if yes then board will boot

tRD =4
CLS 5
Memory ratio 1
FSB strap 2.75 for 600fsb

4-(5/1) has to be greater than 2.75/1
-1 is not greater than 2.75

So im wondering how P45 is even booting at 600fsb TRD 4 cas5 1:1?

Am i missing something here, did Intel add something we do not know about?

TRD 4
CLS 5
memory ratio 2
FSB strap 1.25

333fsb 1:2 ram ratio so 2x333 for 667 or 1333

4-(5/2)=1.5 A
1.25/3=0.625 B

is A>B yup so 333fsb TRD 4, 1:2 ram ratio for 1333 would work.

I just don't see 600fsb 1200 ram TRD4 cas5 working unless P45 changes the rules. Im not dissing here, i want to know what has changed?

Did i do the math wrong?

Bump.

I think this is a worthy question...any answers?