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which tualatin 1.0@1450 or 1.3@1500

M

Mingon

Diamond Member
I have 2 tualatin processor for my sv25 shuttle. The first is a 1.0a, the second a 1.3. The FV25 mainboard allows O/C of 100-119fsb or 133 - 166 fsb. I have modded the 1.0a for 133 bus and so I can use the latter range but 145fsb is my max with this cpu. The 1.3 wont boot at 133 so I am stuck within the 100-119 range - but this gives very high PCI speeds. Which do people think? the 1.3 should run slightly cooler and can run at 1.5 but the 1.0a has the higher bus speed. I think the 1.0a is the best choice does anyone disagree?
 
Your right, especially on a socket 370 set up fsb speed goes along way for memory bandwidth which is somewhat limited. Like you said, your pci/agp bus will be lower at 145MHz, and the 50MHz won't make much difference.
 
Definitely go with the 1.0A @ 145FSB. PCI/AGP bus speeds closer to default, higher FSB better for RAM. You'll never notice 50Mhz less CPU speed.
 
Managed to find a 1.1 celeron to swap for the 1.3 - I am now purring along at 1.466ghz after doing a voltage moded. Not bad for a sv25 shuttle with a pci radeon 9000
 
Nice overclock! 🙂 ,what voltage did it need to do that?
Agreed with keeping the 1.0A btw😉

I ordered 2 1.1Ghz Celerons yesterday ,it would be nice if I could hit 1.4GHz area too
Using a Slocket T & a S370GU I will be plugging 1 into my old Slot1 Soyo 6BA+III & the other into my S370 Soyo 7VCA.

The 6BA+III only has PC100 RAM (I think) so the best I'll probably get is 126MHz FSB ,which would give 1386MHz 🙂.It has a 1/4 PCI divider (which starts at 126MHz)so no worries there.AGP shouldn't be a problem as it has a V3 3000(that's next to go) ,which are known for being tolerant of high AGP buses.I suppose I could sell the PC100 & buy PC133 at another point.

The 7VCA will run right upto 147MHZ FSB with its CAS2 RAM 🙂 ,it is atm with a PIII 933(see sig).I don't suppose it'll go that high with the 1.1GHz Celeron but if it did we'd be looking at 1617MHz!:Q.I'll be happy if it hits 1540 MHz ,what are my chances of that?.The mbrd has got voltage adjustment & there's a reasonable sized Ali HSF

Inccidently I did try to buy a 1.0A GHz Celeron but I can't find anywhere that does them for a decent price anymore here in the UK,.......... I really wish I could of got a 1.0A🙁
 
I would look on eb@y for a 1.0a - the price is quite silly 25-30 should win one. To get it at the speed I have done the pin voltage mod for 1.65-1.7v. I will use the 1.0a in a new pc I am setting up with RM windows installed as I am teaching at primary school.
 
So, did you cut off the BSEL1 pin for the FSB? I've looked all over for info on this mod a while back and couldn't find anything, so I had to go to developer.intel.com and dig up some PDF files and figure it out myself. I'd like to compare notes with others on this. Incidentally I also figured out a 400-533 mod for the P4 - untested at this time so it's just theory. Prior to your 1.1A, I'd have said the 1.0A as your better choice. Personally I had a 1.2 that would do 1560 stable but hot. I downgraded to a 1.1A@1.46 which was stable and cool running (much quieter fan). This was on an Abit VH6T. Good job on your Shuttle SV25. I have a few SV24s, so I'm stuck with non-Tualatin (or modded Tualatin) and no 1MHz FSB adjustments.
 
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