4g4a+ @172fsb.

[Naser]

Hi guys,
Ive been readin a lot of problems about this board not doing above 150 but i just tried it with a 1.6A & i can bench 3dmark @170FSB,i didnt have any boot issues whats so ever & i think so far my chip is limiting me, this board comes with 4/24 bios & about the only problem i faced is whenever u go above 160FSB if u press F10 & u get that screeen in the bios i press enter & nothing happenes,any key wont work either so u got to reset & then u are greeted with ur FSB already been saved other then that i think this mobo is very nice.

[Naser]

Sorry forgot to mention this is using one stick of Corsair-XMS3000 & Leadtek Ti4600.

[phillyTIM]

great post and accomplisment with your board! i don't think there are truly a lot of problems with the board, I think its just that people aren't treating their 4G4A+ properly, that's all. as you show, high overclocks can be done.

so far i've got my 1.6@2.2, mem DDR333@DDR345, without even breaking a sweat. I'm keeping posted upon what guys like you do with it, so that one day I'll push mine a bit farther, and know what to do.

[Naser]

Thanx phily for ur kind words,well after a couple of hours with the board i seem to have no problems at all except saving the setting in the bios as i mentioned earlier, but i think that would be solved with a bios update.I am using a 400 watt Aopen PSU my 12V & 5V are something like 12.22 & 5.08,im not sure but maybe thats helping,im also using a crap heatsink/fan & im sure with a decent one maybe i could go a bit higher.


P.S:that mbm isnt right since i set it up for the BD7-II.

[-CTPAX-]

The problems of 4G4A+ begin when your ram clock is higher than, lets say DDR360. Yours is DDR344 and i asure you, that all benchmarks at fsb 162(2.59G) and DDR404 would be higher than fsb 172(2.72G) and DDR 344, because RAM bandwidth is very important with the P4s :-)
And dont say The RAM is only DDR300 rated, because the same ram ran flawlessly at DDR408 on 4BDA2+, so its not her fault :-))

[Naser]

Originally posted by -CTPAX-
The problems of 4G4A+ begin when your ram clock is higher than, lets say DDR360. Yours is DDR344 and i asure you, that all benchmarks at fsb 162(2.59G) and DDR404 would be higher than fsb 172(2.72G) and DDR 344, because RAM bandwidth is very important with the P4s :-)
And dont say The RAM is only DDR300 rated, because the same ram ran flawlessly at DDR408 on 4BDA2+, so its not her fault :-))

Very intresting,i totaly agree,i didnt try the DDR-360 though,i also gave away that board & im playing around with P4B533-V.Lets see if i can get this board to go higher.

[chrons]

I have had no problem running my ram at over 400+ with this board. Also I have had it boot with the FSB set @177 but it did not do much after that. I tried to run PCMark but it just dies. However it does run stable @165.

[-CTPAX-]

What RAM do you use, what is the bios date?
i run DDR402 at the moment, but only in the 2. dimm slot, the 1. and 3. can do DDR360-370 max
You can try the new bios, im sure you will not able to boot into win even at ddr333 :-))
Something very interesting, the latest Sandra reports, that my mem timings are 2-2-2, in bios they are set at 2.5-3-3, perhaps it has something to do with it, or its just wrong detection.

[Rasputin'sLiver]

Originally posted by Naser
Sorry forgot to mention this is using one stick of Corsair-XMS3000 & Leadtek Ti4600.

Nas-are you running the 256 mb xms 3000 stick? I've got one of those and its the best stick of ram i've ever had. It blows a xms 3200 stick that i have away!:cool:

[Naser]

Originally posted by Rasputin'sLiver


Nas-are you running the 256 mb xms 3000 stick? I've got one of those and its the best stick of ram i've ever had. It blows a xms 3200 stick that i have away!:cool:

Yes sir i am,i did the voltage mod on the 4G4A+ before i gave it away & i reached 180FSB with that ram @most agressive timings,one thing i found was that the vcore flcuates a lot especially when i bench,example MBM shows 1.88v & when u run Prime95 is goes down to like 1.79.Any one got any idea why ?

Thanx

[Rasputin'sLiver]

Originally posted by Naser


one thing i found was that the vcore flcuates a lot especially when i bench,example MBM shows 1.88v & when u run Prime95 is goes down to like 1.79.Any one got any idea why ?

Thanx

I'm not exactly sure why but mine does the same thing under load.

[DaveB]

I would guess it's because Epox doesn't use the 4-pin +12V Aux connector. The purpose of it is to keep the core voltage stable. Funny though, my old 4SDA didn't show any fluctuations like the 4GA4+ does.

[Naser]

Originally posted by DaveB
I would guess it's because Epox doesn't use the 4-pin +12V Aux connector. The purpose of it is to keep the core voltage stable. Funny though, my old 4SDA didn't show any fluctuations like the 4GA4+ does.

Im using the Asus P4B533-V & that also has the Vcore problem,even though it has the +12V connector.

[Rasputin'sLiver]

Originally posted by DaveB
I would guess it's because Epox doesn't use the 4-pin +12V Aux connector. The purpose of it is to keep the core voltage stable. Funny though, my old 4SDA didn't show any fluctuations like the 4GA4+ does.

I'm using a 4bda2+ which uses the 4-pin connector and I get those minor fluctuations. :confused:

[Grumpycrab]

Yes, I also notice strange things happening with volts, e.g.
3.3V rail is constantly at 2.5V. Is this a major problem?

Also, when benching I get 2 strange effects :-

1. a fan (CPU?) makes a differnet noise (going faster?)

2. Vcore dips from 1.7 to 1.65

I'm running 1.6A @2.4 stable. I haven't worked out a min. voltage yet.

Also noticed major VDU interference once when running Prime95 but I think may have been interference from another monito cable (not sure though).

I would guess from this that voltage regulation is a major issue (not necessarily "problem") with the 4G4A+ (using a 300W supply BTW)

Cheers
--
Grumps

[DaveB]

That isn't the 3.3V rail, it's the DDR voltage and 2.5V is exactly on spec.

[Grumpycrab]

Originally posted by DaveB
That isn't the 3.3V rail, it's the DDR voltage and 2.5V is exactly on spec.

Thanks Dave.
--
Grumps

[Blue078]

Originally posted by phillyTIM
great post and accomplisment with your board! i don't think there are truly a lot of problems with the board, I think its just that people aren't treating their 4G4A+ properly, that's all. as you show, high overclocks can be done.

so far i've got my 1.6@2.2, mem DDR333@DDR345, without even breaking a sweat. I'm keeping posted upon what guys like you do with it, so that one day I'll push mine a bit farther, and know what to do.

Could you please share some insite as how to treat the 4G4A+
properly?

I am not haveing any luck overclocking my 2.26B on this mobo.
Not even with corsair XMS 3000, and a 465w PSU.

[chrons]

What is it doing? or not doing in this case?

[Blue078]

Not going past 145fsb.

At 147 crash bag smash em up.

At any vcore, slowest mem timings

[chrons]

What type of Chip? What kind of cooling?

[Blue078]

P4 2.26B
Water Swiftec setup

I found and flashed to the 2617 BIOS
That has let me get to 165fsb 1:1 on the mem
Stable? I will know as soon as I run some benchies