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Thread: Can I use New CPU with old mobo?

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    Can I use New CPU with old mobo?

    Right, to the point

    I have an old mobo (Gigabyte GA-7DX) which I use to run an XP2200+. Ive recently got an XP-M2500+, but its been sitting idle as i cant afford a nf7-s yet.

    I want to know i can use the XP-M with the old mobo. The 7dx runs with a 133 FSB and the XP-M has a 166 FSB (I think). Will placing the XP-M in there just mean that it will run at the max 133 FSB?

    I think the XP-M has a higher multiplier (14, against the 2200s 13.5), so there should be an improvement in perf, right? Finally, is there a risk of damaging the XP-M by doing so?

    Cheers Peeps

    JP

  2. #2
    Drop it like it's hot Howard's Avatar
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    Well upon looking at the site, it doesn't look like it supports much higher than a 2400+, yet it has a 2600 and not a 2500

    Anyway this is for the GA-7DXE, so there might be a chance. But I'm guessing it won't work .
    http://www.giga-byte.com/Motherboard...st_GA-7DXE.htm
    Home cinema: Toshiba 42XV555DB Full HD LCD | Onkyo TX-SR705 | NAD C352 | Monitor Audio Bronze B2 | Monitor Audio Bronze C | Monitor Audio Bronze BFX | Yamaha NSC120 | BK Monolith sub | Toshiba HD-EP35 HD-DVD | Samsung BD-P1400 BluRay Player | Pioneer DV-575 | Squeezebox3 | Virgin Media V+ Box
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  3. #3
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    • jonathan_phang's system
      • Motherboard:
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      • CPU:
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    Yeah, I found that too and found it a bit confusing. I might just try it tho, to see. I really just want to make sure the CPU i bought works, or at leasts posts. Do you know if there will be any damage if i do just throw it in?

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    Drop it like it's hot Howard's Avatar
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    • Howard's system
      • Motherboard:
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    I wouldn't have thought it would damage it. But it won't POST if it's not compatible. Well, it might. Not sure. Doubt it though. Try it
    Home cinema: Toshiba 42XV555DB Full HD LCD | Onkyo TX-SR705 | NAD C352 | Monitor Audio Bronze B2 | Monitor Audio Bronze C | Monitor Audio Bronze BFX | Yamaha NSC120 | BK Monolith sub | Toshiba HD-EP35 HD-DVD | Samsung BD-P1400 BluRay Player | Pioneer DV-575 | Squeezebox3 | Virgin Media V+ Box
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    XP-M's run at 133fsb (266) by default.
    I would give it a try.

  6. #6
    Drop it like it's hot Howard's Avatar
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    • Howard's system
      • Motherboard:
      • Asus P5B
      • CPU:
      • Core2Duo E6420 2.13GHz
      • Memory:
      • 2x1gb OCZ DDR2 6400
      • Storage:
      • 250GB & 500GB Seagate
      • Graphics card(s):
      • Inno3d iChill 7900GS
      • PSU:
      • Antec SmartPower 500W
      • Case:
      • Coolermaster Elite 330
      • Monitor(s):
      • 2x AG Neovo F419
      • Internet:
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    Now that's news to me.
    You might be in with a chance then Mr Phang!
    Home cinema: Toshiba 42XV555DB Full HD LCD | Onkyo TX-SR705 | NAD C352 | Monitor Audio Bronze B2 | Monitor Audio Bronze C | Monitor Audio Bronze BFX | Yamaha NSC120 | BK Monolith sub | Toshiba HD-EP35 HD-DVD | Samsung BD-P1400 BluRay Player | Pioneer DV-575 | Squeezebox3 | Virgin Media V+ Box
    PC: Asus P5B | Core2duo 2.13GHz | 2GB DDR2 PC6400 | Inno3d iChill 7900GS | Auzentech X-Plosion 7.1 | 250GB | 500GB | NEC DVDRW | Dual AG Neovo 19"
    HTPC: | Core2Duo E6420 2.13GHz | 2GB DDR2 | 250GBx2 | Radeon X1300 | Terratec Aureon 7.1 | Windows MCE 2005
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  7. #7
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    • jonathan_phang's system
      • Motherboard:
      • Asus Rampage III Extreme
      • CPU:
      • i7 930 @ 4.2 ghz (200x21)
      • Memory:
      • 12GB Corsair XMS3 1600
      • Storage:
      • Crucial M4 128GB SSD + Misc Data Drive
      • Graphics card(s):
      • EVGA GTX 1080 FTW
      • PSU:
      • Corsair HX850 Modular
      • Case:
      • Antec 300
      • Operating System:
      • Windows 7 x64
      • Monitor(s):
      • Asus PB278Q (27" 2560x1440)
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    Right, will do some benches first (if i can be bothered), then give it a go!
    Will let y'all know how it gets on!

  8. #8
    Drop it like it's hot Howard's Avatar
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    • Howard's system
      • Motherboard:
      • Asus P5B
      • CPU:
      • Core2Duo E6420 2.13GHz
      • Memory:
      • 2x1gb OCZ DDR2 6400
      • Storage:
      • 250GB & 500GB Seagate
      • Graphics card(s):
      • Inno3d iChill 7900GS
      • PSU:
      • Antec SmartPower 500W
      • Case:
      • Coolermaster Elite 330
      • Monitor(s):
      • 2x AG Neovo F419
      • Internet:
      • Virgin Media 20mbit
    Good luck!!
    Home cinema: Toshiba 42XV555DB Full HD LCD | Onkyo TX-SR705 | NAD C352 | Monitor Audio Bronze B2 | Monitor Audio Bronze C | Monitor Audio Bronze BFX | Yamaha NSC120 | BK Monolith sub | Toshiba HD-EP35 HD-DVD | Samsung BD-P1400 BluRay Player | Pioneer DV-575 | Squeezebox3 | Virgin Media V+ Box
    PC: Asus P5B | Core2duo 2.13GHz | 2GB DDR2 PC6400 | Inno3d iChill 7900GS | Auzentech X-Plosion 7.1 | 250GB | 500GB | NEC DVDRW | Dual AG Neovo 19"
    HTPC: | Core2Duo E6420 2.13GHz | 2GB DDR2 | 250GBx2 | Radeon X1300 | Terratec Aureon 7.1 | Windows MCE 2005
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  9. #9
    Senior Member SilentDeath's Avatar
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    If the board was designed ony for tbreds theres a high chance it wont work with any barton core cpu's. Flash it to the latest bios as usually this adds a few more cpu's to the ones the mobo supports

  10. #10
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    • jonathan_phang's system
      • Motherboard:
      • Asus Rampage III Extreme
      • CPU:
      • i7 930 @ 4.2 ghz (200x21)
      • Memory:
      • 12GB Corsair XMS3 1600
      • Storage:
      • Crucial M4 128GB SSD + Misc Data Drive
      • Graphics card(s):
      • EVGA GTX 1080 FTW
      • PSU:
      • Corsair HX850 Modular
      • Case:
      • Antec 300
      • Operating System:
      • Windows 7 x64
      • Monitor(s):
      • Asus PB278Q (27" 2560x1440)
      • Internet:
      • Virgin Media 100mb
    Well,

    took out the 2200+, after doing cleaning, putting Arctic Silver in etc, Plopped the XP-M 2500 in and.....

    Got 800Mhz! Well, it booted fine into Windows, so I think at least I know the chip works. Using CPU-Z, checked it out, all parameters seem to be fine, but the multiplier defaults to 6, which is really a bit rubbish isn't it!!!

    I was expecting it to default at 14, but apparently not. And on the GA-7DX, theres nowhere in the BIOS (Yes, Ive got the latest update) to change the multiplier. Is there someway of changing it through software?

    Oh well, it means I've got to do it all again tomorrow to swap it back

    JP

  11. #11
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    • jonathan_phang's system
      • Motherboard:
      • Asus Rampage III Extreme
      • CPU:
      • i7 930 @ 4.2 ghz (200x21)
      • Memory:
      • 12GB Corsair XMS3 1600
      • Storage:
      • Crucial M4 128GB SSD + Misc Data Drive
      • Graphics card(s):
      • EVGA GTX 1080 FTW
      • PSU:
      • Corsair HX850 Modular
      • Case:
      • Antec 300
      • Operating System:
      • Windows 7 x64
      • Monitor(s):
      • Asus PB278Q (27" 2560x1440)
      • Internet:
      • Virgin Media 100mb
    Hmm, just found a link that may help

    http://www.cpuheat.wz.cz/html/CPUMSR_main.htm

    Seems interesting. Just dling it now

  12. #12
    Drop it like it's hot Howard's Avatar
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    • Howard's system
      • Motherboard:
      • Asus P5B
      • CPU:
      • Core2Duo E6420 2.13GHz
      • Memory:
      • 2x1gb OCZ DDR2 6400
      • Storage:
      • 250GB & 500GB Seagate
      • Graphics card(s):
      • Inno3d iChill 7900GS
      • PSU:
      • Antec SmartPower 500W
      • Case:
      • Coolermaster Elite 330
      • Monitor(s):
      • 2x AG Neovo F419
      • Internet:
      • Virgin Media 20mbit
    OH MY GOD

    That software renames the processor so it shows up in Windows as whatever you want??!!

    Nice!!

    ANd as far as I know, 2500s' multipliers are 11 aren't they? Or are they different for the mobile ones as well

    Either way it doesn't look like your mobo supports it
    Home cinema: Toshiba 42XV555DB Full HD LCD | Onkyo TX-SR705 | NAD C352 | Monitor Audio Bronze B2 | Monitor Audio Bronze C | Monitor Audio Bronze BFX | Yamaha NSC120 | BK Monolith sub | Toshiba HD-EP35 HD-DVD | Samsung BD-P1400 BluRay Player | Pioneer DV-575 | Squeezebox3 | Virgin Media V+ Box
    PC: Asus P5B | Core2duo 2.13GHz | 2GB DDR2 PC6400 | Inno3d iChill 7900GS | Auzentech X-Plosion 7.1 | 250GB | 500GB | NEC DVDRW | Dual AG Neovo 19"
    HTPC: | Core2Duo E6420 2.13GHz | 2GB DDR2 | 250GBx2 | Radeon X1300 | Terratec Aureon 7.1 | Windows MCE 2005
    Laptop: 1.5GHz Centrino | 512MB | 60GB | 15" Wide TFT | Wifi | DVDRW


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    Quote Originally Posted by Howard

    ANd as far as I know, 2500s' multipliers are 11 aren't they? Or are they different for the mobile ones as well
    A desktop XP2500 is 11x166fsb
    Should be about 13.5 on a mobile@133fsb - but how power saving on an AMD laptop works is by switching multipliers on the fly according to demand & that's why mobiles have to be unlocked chips.

  14. #14
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    • jonathan_phang's system
      • Motherboard:
      • Asus Rampage III Extreme
      • CPU:
      • i7 930 @ 4.2 ghz (200x21)
      • Memory:
      • 12GB Corsair XMS3 1600
      • Storage:
      • Crucial M4 128GB SSD + Misc Data Drive
      • Graphics card(s):
      • EVGA GTX 1080 FTW
      • PSU:
      • Corsair HX850 Modular
      • Case:
      • Antec 300
      • Operating System:
      • Windows 7 x64
      • Monitor(s):
      • Asus PB278Q (27" 2560x1440)
      • Internet:
      • Virgin Media 100mb
    Woo Hoo!!

    After a bit of messing around with CPU MSR, I finally got it to work. It posted first at x6, but now it is running at 1866.7mHz (133 FSB x 14 multi). I must say that this piece of software is great. My mobo doesnt even have options to change things so I'm well grateful.

    Took me a while though. Depending on your chipset, you may have to change one specific cpu register, to enable you to change the multipliers through software. Done this first with WPCREDIT, and then CPUMSR worked fine! However, i found it all reverts back to normal (registers AND default multis) on reboot, so I was a bit gutted (Didnt want to do it every time, and other people use my comp too - no way they're gonna know what to do!).

    A bit of searching and i found WPCRSET, which basically lets you specifiy which register(s) to change on startup, one problem out of the way. So the final thing was to somehow get CPUMSR to run at startup. I found that you can save a certain config (CPU name, multi, voltage etc) and save it as a file, then run CPUMSR from the command line to execute a given config file. So i set up a shortcut to do this and ploped it in the startup items folder.

    Voila! Works fine! Good thing about this is you can create several shortcuts, say a low power cpu config for general stuff, and a full whack one for gaming, whatever you feel the need for. Then you can run them when wanted.

    The author is trying to make an app that will dynamically change the CPU multi, depending on the cpu load, seems quite good. I've also read somewhere (not confirmed tho) that this solution will work on the 'superlocked' new athlonXP chips.

    I do recommend having a look if, like me, you have an old mobo.

    JP

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    Resident abit mourner BUFF's Avatar
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    Quote Originally Posted by jonathan_phang
    I've also read somewhere (not confirmed tho) that this solution will work on the 'superlocked' new athlonXP chips.
    Depends on the chipset.
    It involves making the CPU being seen by the board as a Mobile (I believe that ECS? even has a board using a SiS chipset that does this automatically) but it doesn't work on nForce2.

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    Re: Can I use New CPU with old mobo?

    Hi there Jonathan, may I ask what setting you changed using WPCRSET to allow CPUMSR to control the multiplier?

    I am very new to this, but I have a ga7dxe and I was planning on purchasing an xp-m on sale on ebay, but I would like to be sure that I can run it at it's full potential on that motherboard, so I would be really grateful if you could tell me what to do with WPCRSET.

    Thanks in advace,


    Russ

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