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Author Topic: Xbox Cpu Socket  (Read 184 times)

mhr_54

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Xbox Cpu Socket
« on: August 19, 2003, 02:29:00 PM »

Does anybody know what type of socket the Xbox's CPU uses, I'm installing water cooling and need to know what cooling blocks will work.  Also, does anybody know what processor the Xbox uses?  Some people say it's a Celeron 700MHz and other say a Pentium 3 700MHz.
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andrusk

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Xbox Cpu Socket
« Reply #1 on: August 19, 2003, 02:32:00 PM »

if im not mistaken i think the cpu is a celeron with a bigger cache, so in effect its not really a celeron by specifications but its not a p3 either.  And also, i think the chip is actually soldered into the motherboard, which means no socket.
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EvilWays

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Xbox Cpu Socket
« Reply #2 on: August 19, 2003, 02:59:00 PM »

It's a Celeron 733 with a 133MHz FSB (Normal P3 based Celerons were limited to either 66MHz or 100MHz FSB before overclocking), and it's soldered in. I don't think it has a bigger cache.

I'm looking at installing a watercooling kit myself, and the best bet is to get some thermal epoxy. I'm also looking at three different waterblocks from swiftech (for CPU, GPU, and MCPX chips), and the Koolance EXOS radiator/reservoir kit.
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hcarlson3

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« Reply #3 on: August 19, 2003, 03:43:00 PM »

can I ask you guys somethin.  Why?  There are ways of making it silent without watercooling.  And you can't overclock it right?  Just want to be different or somethin?
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EvilWays

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« Reply #4 on: August 19, 2003, 05:00:00 PM »

Two reasons:

1) Not everyone uses their systems the same (amount of time, purpose, etc)
2) Bragging rights and being the überl33t kid on the block.

Ok, I lied...

3) Just because.

There are some people who are kinda afraid that their system will overheat and "shit". Besides, isn't modding about seeing where, and how far, a particular system or whatever can be pushed/tweaked/moddifed?
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EvilWays

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Xbox Cpu Socket
« Reply #5 on: August 19, 2003, 06:30:00 PM »

Unless that person has a SMT rework station, it's probably BS...and even then, I doubt it'd work since the CPU is a modified Celeron (133MHz FSB instead of 100MHz FSB).
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mhr_54

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Xbox Cpu Socket
« Reply #6 on: August 19, 2003, 07:06:00 PM »

I thought I was reading some where that it uses a Socket 478 attachment for the heatsink/fan combo, is this true, in other words could I grab a Socket 478 cooling block?  Also, rather than upgrading the CPU, is it possible to overclock the clock or bus speed.  The reason I'm installing water cooling is:

1. Becuase it's cool
2. I've got a secret setup in mind
3. I'm using my Xbox for Linux games as well as Xbox games

Reason three is why I'm curious about overclocking, I think I read somewhere Xbox games are only capable of running on Xbox's current setup, but Linux can take advantage of extra speed, then I could just turn off overclocking when playing Xbox games.
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mhr_54

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Xbox Cpu Socket
« Reply #7 on: August 19, 2003, 07:13:00 PM »

Oh, I forgot something, I'm modding my Xbox in a way the the side vents are no longer existant, hence the need for extra cooling.  If I install water cooling the CPU and GPU heat never reach the inside of the case and are exhausted right out of the radiator.  Whereas if I used conventional cooling the heat would build up.  By the way, does anybody know if there's a way to some how absorb "case heat" into your water cooling system, like a reverse radiator or something (radiators output heat, a reverse might be able to input heat theoretically).
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EvilWays

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Xbox Cpu Socket
« Reply #8 on: August 20, 2003, 01:36:00 AM »

No it doesn't use a Socket 478 setup, tho the GPU heatsink retainer looks to be either Socket 7 or Socket 370. Just use thermal epoxy.

And no, you can't overclock the Xbox. There's no dipswitches or soft switches to adjust.

I don't know about creating a heat pump effect with an additional radiator placed inside to absorb heat. Your power supply and other electronics throw off heat as well so it may get hot in there with the side vents are not there.
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mhr_54

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Xbox Cpu Socket
« Reply #9 on: August 20, 2003, 06:28:00 AM »

I know there are no soft or dip switches, but I read somewhere you can unlock speed by shorting certain pins.  So the big questions is whether the motherboard can support faster clock speeds, which it probably can't since it's designed specifically for this speed of processor.  By the way, does anybody know whether you can run a water cooling pump mounter sideways?
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EvilWays

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« Reply #10 on: August 20, 2003, 06:45:00 AM »

QUOTE (thebuffman @ Aug 20 2003, 03:09 PM)
Also the X-box beefed up Celeron/PIII chip uses a bigger L2 cache than the Celeron.  128 I think it is.

The L2 cache on the Celeron has always been 128KB unless the earlier versions used 64KB, which I doubt.

mhr_54: where are your planning on mounting the pump?  blink.gif
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mhr_54

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Xbox Cpu Socket
« Reply #11 on: August 20, 2003, 07:26:00 AM »

The pump and radiator will be in an external micro-atx case that the Xbox will sit on.  This external case will also house extra hard drives and disc drives.  What I'm still looking for though is a cooling block w/ fan/fins.  That way I can disconnect the Xbox and use it without the external case without frying the processor.
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heinrich

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« Reply #12 on: August 20, 2003, 08:03:00 AM »

play halo at warp speed!!
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mhr_54

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Xbox Cpu Socket
« Reply #13 on: August 20, 2003, 08:17:00 AM »

In theory this should but you don't have the schematic of the timing circuit and therefore you don't know what could go wrong.  Although, I might try it.
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[H8]Wal-Mart

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« Reply #14 on: August 20, 2003, 09:44:00 AM »

I have been contemplating this for some time. If you run the xdk and then run xbwatson, it gives you the clock speeds and so on. That is how one could test to see if they effectively changed the clock speeds.
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