The differences between the XET and the XET-C.

[Flu!d]

Although I don't read Japaneese the bits and pieces that I can pick out in english appear to indicate that there are 'many' differences between the XET vs the XET-C, which proves what I have been saying all along....What looks to be slightly different numbering (although these could be just different serial/batch numbers) indicating possibly a slightly different chipset and power/filter capacitors not to mention what 'looks' like a different clock gen and the absence of the dip switches to allow varying FSB/RAM speeds. It also appears that the review is discussing the absence of the 'special' dividers that are present on the XET- Although, once again I can't be too sure....I can't read Japaneese!

So anyone considering buying this board to hit rediculious FSB's with advanced divider control....You need to try to get an XET....NOT an XET-C....

Good luck finding an XET though considering they have been discontinued!

This should clear up a few misconceptions about this fine board....

XET vs XET-C.... (http://www.svenshardware.com/07Mainboard/076oxet_cmod/6oxet_cmod.htm)

You will also see in this link what appears to be a mod to allow for 1.95 volts vcore!! Wish I could read Japaneese....

big vcores (http://www.svenshardware.com/07Mainboard/6OXET_mod/6oxet_mod.htm)

[dscline]

The pll values DO work on the -C... I'm using them now. To me, it looks like the "important" numbers on the north/south bridge are the same. No idea what the capacitors do though.

[Flu!d]

Yeah....I was looking at the numbers before and they do look pretty much the same....

Discline....What pll settings have you used at what FSB's and what were your results?

[dscline]

This is going from memory, 'cause I'm not at home: I'm using a P3 700 @ 933. Because it is a stock 100Mhz FSB chip, the board WANTS to run the pci/agp at 44/88. Using the pll16 option, I get 33/66. I'll correct later if I find that I've remembered incorrectly.

[Flu!d]

So the 1/4 pci divider works fine....

[Celemine1Gig]

I think the XET and the XET-C only differ in the absence of the dip-switches on the XET-C and the use of some other capacitors!

BTW I had my XET running at 180 MHz FSB for about 15 minutes, but then it crashed. I think it's aheat problem. The northbridge was quite hot after that! It's also booting at 200 MHz FSB!!
I'll cool clock generator, voltage regulator and northbridge and then I'll test those speeds again!

In my opionion that shows that the pll dividers are working!! I had all my devices running in fastest UDMA mode at that speed and if the dividers wouldn't work, I think at an PCI speed of 45MHz it would've killed my file system!

[Flu!d]

Hey....Good job Celemine 1gig! Keep us updated!:D

Before the updated bios I had no 1/4 pci divider on a 100mhz FSB chip and I know for a fact that I coulden't achieve higher than 38mhz FSB without the HDD's crashing out (lost an install of XP this way)....So I too would say the dividers are indeed working!

[OC2K]

Fluid...from what I can tell...the absence of the physical jumpers on the GA-60XET-C is made up in the bios...they still work! I dont know about the capacitor situation...but I am glad I got the board. I actually ordered the XET (not -C) but when they shipped it ..they sent the -C...I was upset but they lowered the price and I said screw it and kep the board...I am not sorry I have it ....I am very happy with the results so far....very, very stable at 1.6 ghz and I am taking it higher soon..........;)

[Flu!d]

I'm glad you're happy with the board OC2K it is a very nice board! I'd say the reason you got the XET-C is due to the fact that the XET is now discontinued.

You can adjust the FSB no worries from the bios between the ranges of 66-200 mhz....You can't however run the FSB at say 150 mhz and the RAM at 115 mhz, you need the dip switches for this feature....But with that Tualatin Celeron you aren't gonna need to do that anyway!

[Flu!d]

Running my P3 1000EB ATM for some testing because i'm boared....

Running the chip at 150 mhz FSB with pll24 enabled which pushed the pci/agp bus well below spec at 25/50mhz with absoultlely no problems at all! (could have run pll20 which would have been 30/60 but I wanted to prove a point).

At 150 mhz FSB @ CAS 2,2,2,5/7 i'm getting 462/532 in sandra memory bandwidth scores....Very impressive! (with the Celeron I get 437/450)....Still can't beat the Celeron at a low res Quake III timedemo though, not by a long shot.)

At 150mhz FSB @ CAS 2,3,2,7/9 I get a mem bandwidth score of 397/475 - You could say that this is 'roughly' equal to the Celeron.

So overall, at 125 mhz FSB the bandwidth of the Celeron is right up there! Not too bad at all I must say! One thing I did find is that my new 256 MB stick of Legend RAM did not like pulling CAS 2,3,2,7/9 without upping the DIMM voltage to 3.5 volts (would crash in a mem bench) whereas my 2 X Generic 128 MB sticks of RAM would pull CAS 2,3,2,7/9 quite easily....But there is no way, even to full 3.6 volts DIMM voltage that the Generic sticks will pull 2,2,2,5/7 whereas the Legend RAM will. The Legend RAM will also pull CAS 2,2,2,5/7 @ 125 mhz FSB at standard DIMM voltage, whereas the Generic ram will not pull CAS 2,2,2,5/7 at all.

[Ausone]

Flu!d, I've been following the other thread about ST6 and GA-6OXET because I'll be getting Tualeron, and let me make some comment on the language used in those pages you are referring to in the post at the beginning of this thread.

They are not in Japanese, but in Chinese. I can say this for sure because I am a native speaker of Japanese. Just as alphabets are used in many Western languages, Hanji or Kanji characters are used in Chinese and Japanese. Judging from the fact that those Hanji characters are traditional ones and not simplified ones, those pages are written by Taiwanese. In mainland China, they use simplified Hanji characters. So those guys who managed to run at 190MHz FSB are probably Taiwanese.

As regards contents of those pages, although I can only comprehend some classical Chinese and not modern Chinese, I can roughly guess what the page is saying. It lists the officially announced difference between those two boards first, and goes on to investigate the undocumented difference between them, particularly with regard to overclocking. They show several undocumented differences as shown in those photos, among which they seem to take the absence of the dip switch as a major one. Lastly they suggest a simple solution for an absent dip switch: adding it to OXET-C board. So what Celemine1Gig says seems to be basically correct.

[Flu!d]

Thanks Ausone....I actually noticed later on that it was a Chineese web site and felt that the language used may not have been Japaneese, thank you for clarifying that!

Yes, the absence of the dip switch (which was only just recently brought to my attention) is very dissapointing....But if you were good with a soldering iron you could solder it onto the board yourself....