there's nothing wrong with the SiS board and yes there may be better options available, BUT NONE ARE AS INEXPENSIVE. and that is a fact, and yes you make valid points about how different CPU's would need different FSB settings and such, but the FACT IS that the majority of people are buying the 1.6A and not the higher CPU's. I have such a strong opinion because I like supporting underdog companies like SiS instead of going with plane ol Intel chipsets. SiS has been puttin out solid chipsets and their upcoming sis 648 with 8X support and official ddr 400 support looks to be a killer board.
Originally posted by: Sudheer Anne
NFS4 you really don't know what you are talking about. The earlier i845d boards from Epox were excellent. However their new i845g mobo the 4G4A has received a LOT of flak for being a crappy board for ocing. Just check hardforums and even these forums and you'll see that Epox isn't a stable mobo when overclocking. If you really want a great mobo and DDR 333 support get an Abit BG7, Abit BD7II.
As I mentioned, the 4G4A+ comes with all the overclocking tweaks you could ask for!! So what was I able to score with this beauty?? In order to test overclockability, I decided to install a Pentium4 1.6A processor, which is the overclockers dream the way things are now ... Low multiplier, same core as the much higher clocked processors, ... what more could you ask for?
EPoX has a good reputation when it comes to BIOS' and that's the case with the 4G4A+ as well. All the usual stuff is available and more: memory tweaks, overclocking options, ... you name it. Overclockers will be happy to hear that the DDR voltage can be increased up to 3.2V in 0.1V increments and the CPU voltage can go all the way up to 1.85V in 0.025V increments. If that won't satisfy your needs, let me tell you that the front side bus can be increased in 1MHz increments starting at 100MHz and ending at 255MHz ... This means that DDR-333 memory is no problem for this baby 😉.
Die hard overclockers who tend to get the most out of their video cards will be thrilled to hear that not only the CPU and DDR memory voltage can be adjusted, also the AGP voltage can be altered! Settings between 1.5V and 1.9V (0.1V increments) are available to make sure you are getting the most out of it.
All of the above combined result in a great overclockers motherboard, which will become clear in the "Overclocking" section ...
As I mentioned, the 4G4A+ comes with all the overclocking tweaks you could ask for!! So what was I able to score with this beauty?? In order to test overclockability, I decided to install a Pentium4 1.6A processor, which is the overclockers dream the way things are now ... Low multiplier, same core as the much higher clocked processors, ... what more could you ask for?
I was able to run my CPU at 2.61GHz with the EPoX 4G4A+ ... That's right ... this is a 1.01GHz overclock! Now, I can hear you think: "he used a watercooling setup along with some TEC's!" ... WRONG! The CPU is being chilled by a fairly standard aluminum Vantec P4 heatsink. Imagine what this puppy will do when I apply some liquid cooling to it huh?
Also note that the highest speed I could get from this processor on any other board was 2.4GHz, with the exact same hardware configuration (besides the motherboard).
I was able to get the processor to load windows at 2.7GHz, but it would fail as soon as CPU load would reach 100%. The reason for this is heat, which will probably be eliminated as soon as I install some watercooling, so expect this saga to continue soon!
All in all, the EPoX 4G4A+ has shown itself as a true overclockers dream with great potential and extreme stability! I ran loops of 3D Mark hours and hours, combined with RC5 and Prime95. Not a single hick-up took place. Need I say more?
Just as you think DDR333 support is enough for you, EPoX 4G4A+ can provide some sort of DDR400 support if you increase the FSB to 160Mhz. Well, this is not a true DDR400 support as your CPU should remain at 133Mhz default while the memory is running at 200Mhz but it is nice enough for now.
Using the Intel Pentium 4 2.4BGhz utilizing 533Mhz FSB, i have increased the FSB from 133Mhz to 160Mhz and set the CPU😀RAM ratio to 4:5 that allows the DDR SDRAM to run at 200Mhz. The memory timings are still at most aggressive and the AGP/PCI ratio is still locked at 66/33Mhz.
EPoX 4G4A+ has a very powerful BIOS with many tweakable settings such as VCore up to 1.85V, Vagp up to 1.9V, VDimm up to 3.2V, FSB up to 200Mhz in 1Mhz interval and AGP/PCI ratio adjustable. The clock speed and the FSB of the Pentium 4 processor can be fully maxed out with this board. The ability to support DDR333 is certainly the most welcomed feature here and stability can even be achieved at 200Mhz FSB (DDR400) with good combinations of BIOS settings. EPoX 4G4A+ is simply an Overclockers' delight and much high FSB overclocking can be done with this board definitely.
The EPoX 4G4A+ is a powerhouse when it comes to overclocking. Basically, every setting under the sun for overclockers is available and allows good to fantastic range settings. Using the Award 6.00PG BIOS, you will find the overclocking options under the "Frequency/Voltage Control" Menu. From here you have all your options.
First off is the FSB/CPU setting. You get to see your FSB speed and CPU speed at that FSB before any changes are affected, very good to check if you are going that little bit too high. Your FSB settings can be set from 100MHz up to 255MHz in 1MHz increments. A must have.
Next you get your DRAM Frequency. Here I found some amazing settings, you can set your DRAM speed to 200MHz, 266MHz and 333MHz. That?s right this board has DDR-333 support. Looking through my documents from Intel on the i845G, there is no mention of DDR-333 support. This is a nice hidden surprise.
After the main settings for your system, we get into voltages. First off is the Vcore. You can set the Vcore from 1.1v up to 1.85v in 0.025v increments. Northwood CPU's will go to full 1.85v without any problems on this board. The next voltage is the AGP Voltage. You can set your AGP voltage from 1.5v to 1.9v in 0.1v increments. DRAM voltage is the last on the list. You can set the voltage of the DDR-SDRAM from 2.5v up to 3.2v in 0.1v increments. This will give you super speeds from the memory and allow better overclocking of your DDR SDRAM.
EPoX of late have had success after success. A little over three years ago, EPoX was a name unheard of, but today they are one of the biggest overclockers on the market. The 4G4A+ certainly does not tarnish this reputation.
The 4G4A+ in the stability section was unwavering. Even when running aggressive memory timings there were no hiccups at all. Overclocking stability is another of its great attributes. Able to support up to 170MHz FSB on our P4 2.4GHz 533FSB CPU shows that this board can push the limits, and the added settings in BIOS to control your overclocking are well above the average.
ARGH!!! Well, after 2 days of tinkering around with the 4G4A+, I am about to pull my hair out! Yes, when I first installed it, it was great! Now that I am doing more things with it (or lack thereof), it is really starting to annoy me...
SVT: Now you see why my first post on this board was a bit negative...I posted AFTER I wrestled with it thoroughly...makes the color a bit uglier, eh?
I think I've finally reached the point where I know what's up with this board. I certainly think there's a power/current problem. Just as Zroc mentioned, anything over 1.7v seems to lose stability.
Right now it's running at 2.4/1.6v/DDR375, which allows me to run 3DM2K1 infinitely (or so it seems), but that limitation appears to be a RAM issue, as 2.48/310 runs fine as well. The max I can run the CPU with stability is 2.48 with 1.65v - I was able to run Prime95 for 13 hours without a hiccup. That speed (with the 4:5 ratio) puts the RAM at 387, and I get lock-ups in 3DM2K1. So, I am going to order some new RAM and see if I can get 2.4/400 working or maybe even 2.48/413, if the RAM will do it.
. I'm kind of a bit preturb at EPoX for not putting the 12v power connector on there! I'm sure it wouldn't have raised the price of the board all that much.
140MHz is pretty much the max stable FSB possible. But the 4G4A+ could turn out to be a waste of money (~$50) for an "upgrade" that performs worse due to lack of DDR400 support at possible FSB speeds.
Hello, just got the board yesterday and also run into trouble. The 1.8A works at 2.4 with 1.625volt without a problem, but only with RAM at 266Mhz (jumper at Auto). If i try 354Mhz and a VGA-card driver is loaded WinXP crashes on start. I used 512Mb Samsung PC333 original stick (2 fifferent sticks!),
bwass24
I have both a 2.26B and a 1.6A and I've been running the 2.26B in the Epox board for a few days. This is the first board that I've tried the 2.26B CPU in so I don't know it's true overclocking potential. I've also run a few different types of RAM--Kingmax PC2700, Kingmax PC3200, Corsair PC3000 and Mushkin PC3200 (Samsung chips under the heat spreader).
Here's what I've found:
-Regardless of the RAM installed I can run the FSB up to 155 with great stability with ratio at 1:1 or auto
-The lack of a extra 12V doesn't seem to be causing any problems
-At total defaults settings, which do a great job of figuring out how to run your RAM, Sandra mem scored are about 2500+/-, and 3Dmark2kSE scores (Ti4400 not overclocked) are about 10200
-The best results I've obtained so far have been:
--155fsb (2635mhz), memory ratio 4:5 using Mushkin (=194mhz), Vcore=1.625, Vagp=1.6, Vdimm=2.6
--Sandra mem score=3003
--3Dmark2001se score (GPU OC'ed to 567/280) =11012
phillyTIM
Alright...I put my 4G4A+ up last night, with my 1.6a p4, and here's what I have to report so far...
that 4G4A+ baby is running solid at fsb 138 (2.2ghz), 2 Samsung DDR333 registers as DDR344, vCore 1.5v, vDIMM 2.5v, PerformanceMark of 2955.
I have burn-in tests running for the past 8 hours, and not one freeze-up yet.
I'm quite pleased with my purchase of the 4G4A+. With the help of this motherboard, a $135 purchase of a 1.6a at 2.2ghz is a pretty healthy investment!
It seems this board, and every 845e/g board, is getting a bad rap out of those who can't get DDR400 speeds. Well since the system lets you run at DDR333 unofficially in-spec, that's nothin' to sneeze at.
gsethi
oh boy.....do i love this board or what ?
ok..this time i plugged in my GF3 video card and ran 150 FSB using 3:4 memory ratio. Just to save time, i decided to give +0.1v to my memory and it worked fine.
Running prime 95 without a hitch now. this board beats GA-8IEXP right off the back. Will test 4:5 memory ratio again and see if my GF3 affects it in any way.
but i LOVE THIS BOARD NOW. My GA-8IEXP is going back i guess.......
UPDATE: Low memory benchmarking was due to using integraded graphics. put in my GF3 and back to normal benchmarks........
ANOTHER UPDATE:
It is doing 160 FSB with 4:5 memory ratio now.....WOWOWOWOWOW
Increased CPU VCore to 1.700 v (it wouldnt do it at 1.600v though)
gsethi
Sukhoi, i am running my Memory at DDR 333 and getting those numbers of DDR 266. My Score should be around 2400 for DDR 333 and i am getting that score for DDR 374....weird.....will check BIOS again and might give some more voltage to Ram
But this board is performing like a stellar so far.....my GA-8IEXP required me to provide more voltage to my memory for DDR 354 and its doing DDR 374 on default (well..actuall is DDR 333)....but still.....
i have to figure out why memory is benching so low now.......
will try 150 FSB with 3:4 ratio next.
EDIT: oh yeah...forgot one more thing...this board is overvolting (unlike many other boards including Gigabyte) which is a nice thing for overclocking. Seems like that missing of 12v connector has no effect.
boy, i am starting to love this board now.....only have to figure out why my memory is benching so low.
MetroRider
ok, i just got my Epox 4G4A+ earlier today from newegg, and have hooked it up using a P4-1600a.
boy this mobo is SWEET! it posts @ 2560 (160 fsb), and i have run my Samsung PC2700 ram as high as 390 ddr (though not stable).
right now, i have it set at 154 fsb for a speed of 2464 MHz, with my ram running at cas 2-2-2-5. all of this is with default voltages for both the cpu and the ram.
will report back to see how others things of it are going....
ANY2
I just read on another thread that the 4G4A+ is not a great overclocker.
Now I see that gsethi has his 1.6A overclocked to 2.6 using a 4G4A+ and some Samsung DDR333 RAM.
That is an awesome overclock, considering it is only air-cooled...
I would also like to buy this 4G4A+/1.6A/512MB_Samsung_DDR333 combo. Is that the way to go for O/C that 1.6 to atleast ~2400?
I also noticed that gsethi has a very powerfull PSU, that might be compensating for the lack of the 12V input on the 4G4A+
Am I right? If so, which PSU should I get?
gsethi
Hello, i think that this board is a good overclocker. I am running rock stable for about a week now at 160 FSB. I can do 163 FSB rock stable too and thats with 3:4 memory ratio. I will try once again over this weekend to see if i can go any higher after burning my board.
Regarding the PSU, i am using Antec 400w PSU right now. Its a great PSU and is also very quiet and i love it. you might want to go with atleast 450w-500w if you want to go over 2.6 Ghz. Thats the same i am wondering. I wonder if its my PSU thats holding my back now on higher upgrades by not able to provide enough power ? dont know for sure but go with atleast 400w PSU, i definately recommend atleast 450-500w PSU though.
hope that helps
MetroRider
ok, i've been working my way up with this combo. i recently installed 3DMark2001 SE, but am not an avid follower of it, so please let me know how my score ranks:
p4 @ 2432 MHz
ram running at 406 DDR
i get a score of 9503 using a Geforce3. I will see what happens when I pop in the Geforce4 Ti4200 128mb card in its place...
anazoal
...I've been working my way up the FSB ladder...
Currently:
...Default voltages... at 147 FSB & 367.5 DDR
Running Prine95, CPU temp steady at 49 C
Mobo is STABLE so far!!!
...going to 150 FSB & 375 DDR next
...Did I mention I am using stock HSF? Fan is now spinning at ~3900 RPM... That's 1000 RPM above stock FSB!
Insane3D
Just got mine set up with the following components....
P4 1.6A
Retail Radeon 8500 128mb
Philips AE 5.1
Hollywood Plus DVD card (for TV Output only)
2 x 256mb Kingmax PC3200 (DDR400)
Alpha PAL8492 HSF
Antec 350W PSU
I'm using the onboard LAN only. The Highpoint Controller, video, and sound are all disabled.
I'm running 160mhz FSB, DDR400, stable as a rock. I replaced the northbridge HS with the one from my dead Asus P4B266-C, and it works well.
Here's a couple of pics...
gsethi
Another update from me:
for those who missed my last update, here is my old info:
CPU: 1.60a @ 2560 Mhz (160 FSB)
CPU VCore: 1.800v
Memory: DDR 333 @ DDR 426 (3:4 memory ratio)
DRam Voltage: 2.700v
Prime 95: ran effortlessly for hours
Todays update:
CPU: 1.60a @ 2640 Mhz (165 FSB)
CPU VCore: 1.800v
Memory: DDR 333 @ DDR 440 (3:4 memory ratio)
DRam Voltage: 2.700v
Prime 95: running solid so far......
Seems like there is no stopping on my Ram. Surprised that my Samsung DDR 333 is running effortlessly at DDR 440. (at current increasing rate of DDR 14 / week, my memory will be running at DDR 496 next month now this is one heck of a memory stick.....thanks Samsung)
btw, for your info, my stick is a newer "DTL" model (not "CTL" like some of you are running after). I read somewhere that the "DTL" model is supposed to be DDR 400 memory sticks (in my case, it is certainly true)
Hugenstein
For anyone who is curious, these are the scores I got with the simple overclock, put the system up to 133 bus, and PC2100 RAM at CAS 2.
Epox 4G4A+
P4 - 1.6A @ 133 bus
512 MB Crucial PC2100 @ CAS2
Geforce TI4200
3d Mark2001 SE: 9379
PC Mark 2002: 5132
Originally posted by: Sudheer Anne
here is the link to the thread
Originally posted by: Sudheer Anne
here is the link to the thread
Originally posted by: oldfart
SiS 645:
For those who like 2nd best
Originally posted by: Sudheer Anne
the epox board is decent for mild overclocking (ie 1.6@2.4) but for anything serious requiring high voltages it is not so good. Due to the lack of a P4 power connector on board there are several stability issues for those running with smaller power supplies (and even for those with higher powersupplies). That is why the Epox board is not recommended for overclockers, the Abit BG7 is not so good either because of the excessive heat of the northbridge. It severely limits its ocing capabilities at 150 fsb and above. In a nutshell the i845g mobos aren't all too great for extreme and high overclocking. Ask any of the extreme overclockers on this board and see who's running an epox board? is thugsrook....no
Just check hardforums and even these forums and you'll see that Epox isn't a stable mobo when overclocking. If you really want a great mobo and DDR 333 support get an Abit BG7, Abit BD7II.
Initially I decided to adjust the front side bus and go for broke at 166MHz FSB and then back it down from there since I know the CPU I am using is capable of hitting that speed. It was my attempting this that uncovered my second big issue with this board, rebooting. Both warm rebooting and cold booting. It seems that any setting over 133MHz FSB (533MHz) would cause the system to hang while rebooting.
The system when set to high bus speeds would not reboot without having to manually reset the CMOS. Even then, sometimes the system would take two or three times to reset itself.
Then, all BIOS settings were returned to ?Default? to ensure that any settings I may have made were not adversely affecting the system's ability to boot, and attempts were again made to reboot in an overclocked setting. Even at Default speeds, overclocking the system bus required rebooting several times to get the system to start properly.
The highest stable speed I was able to achieve was 158MHz FSB at 18x for a speed of 2854MHz. Although the system did perform very well while running at 158MHz FSB, the fact that the system would hang while rebooting at ANY overclocked speed made overclocking the system a pain, at best.
Overall Impressions:
It is clear from the problems we encountered during testing that the BD7-II clearly has some issues that marred an otherwise good benchmarking performance. Solid numbers coupled with decent features would normally make this board a very good choice for a wide range of users, however that does not seem to be the case here.
The board even with its overclocking issues was a strong performer and had it not been for the RAM slot issues, would have be an OK desktop workstation candidate. Still, you are not going to come close to hearing us suggest you buy this board when there are so many other solid candidates on the market. When fully populated RAM slots do not recognize all your memory, there is a serious problem somewhere and one that you are most likely to find out about when the board is way out of warranty. Not a good problem to have.
It is not clear whether the mentioned issues can be addressed with BIOS updates, or if the problems are rooted in the design of the board necessitating a revision. ABIT was not able to get back with us on these issues to drop in their suggestions. A fair amount of time and effort went into troubleshooting this board that should have been spent enjoying the solid performance it did have when operating correctly. Hunting down BIOS revisions and swapping out RAM in multiple configurations also added to the headache, and troubles are certainly something no one wants to purchase any more of.
Speaking solely on the merits of the BD7-II?s performance and features, I enjoyed working with it at default speeds, but beyond that the BD7-II was simply a bother. I believe that if ABIT can address these problems and make the BD7-II a stable board, it could very well be a great board to work with. Sadly though, in its current form, it is simply not a board that should be on your shopping list. With ABIT building boards that have been as incredibly strong as their AT7-MAX and IT7-MAX, it makes you wonder what was going on when the BD7-II was engineered.
Originally posted by: oldfart
SiS 645:
For those who like 2nd best