WD 1200JB 8 meg buffer drive with 40 MHz PCI bus?

oldfart

Lifer
Dec 2, 1999
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Anyone ever run one of the WD 1200JB or other "Special Edition" drives on an overclocked (~ 40 MHz) PCI bus? Any problems?
 

Dug

Diamond Member
Jun 6, 2000
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Good question. I would also like to know because I would like to pick up this drive.
 

Eug

Lifer
Mar 11, 2000
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1,676
126


<< Anyone ever run one of the WD 1200JB or other "Special Edition" drives on an overclocked (~ 40 MHz) PCI bus? Any problems? >>



As far as I'm concerned, ANY drive run at greater than about 37.5 MHz is a disaster waiting to happen. I try to keep drives to 10% overclocked or less (Ie. <= 36.7 MHz). Some drives may run fine at even at 41.5 Mhz, but don't count on yours being one of them, regardless of the brand and model.
 

sharkeeper

Lifer
Jan 13, 2001
10,886
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<< As far as I'm concerned, ANY drive run at greater than about 37.5 MHz is a disaster waiting to happen. I try to keep drives to 10% overclocked or less (Ie. <= 36.7 MHz). Some drives may run fine at even at 41.5 Mhz, but don't count on yours being one of them, regardless of the brand and model. >>



Good advice. With an 8MB buffer, the possibility of data corruption is far worse.

Cheers!
 

LukFilm

Diamond Member
Oct 11, 1999
6,128
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What FSB is 37MHz and 40MHz PCI bus? Over 150? Because that's what I want to run at...
 

oldfart

Lifer
Dec 2, 1999
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I run a 158 MHz FSB now, 39.5 MHz PCI. My IBM 60GXP has never complained. I was wondering if the WD drive is as tolerant.
 

Eug

Lifer
Mar 11, 2000
24,048
1,676
126


<< I run a 158 MHz FSB now, 39.5 MHz PCI. My IBM 60GXP has never complained. I was wondering if the WD drive is as tolerant. >>

Like I said, it's potentially a disaster waiting to happen. It might work fine, but then again it might not, and in 2 months you may end up kicking yourself (unless you have adequate backups). Only time will tell and YMMV.

I have found my IBM drives more tolerant than others, but 39.5 is really pushing it. (I haven't tested any recent WD drive though.)
 

Mavrick007

Diamond Member
Dec 19, 2001
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What about going lower than 33Mhz for PCI bus? Couldn't you possibly go with 158/5 to give you 31.6Mhz? That would be an underclock but it would be safer wouldn't it?

I see some of the new boards being made with the Pci/AGP bus being locked in so you can't change them. I like that idea a bit more cause all you have to worry about then is basically fsb and memory.
 

Eug

Lifer
Mar 11, 2000
24,048
1,676
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<< What about going lower than 33Mhz for PCI bus? Couldn't you possibly go with 158/5 to give you 31.6Mhz? That would be an underclock but it would be safer wouldn't it?

I see some of the new boards being made with the Pci/AGP bus being locked in so you can't change them. I like that idea a bit more cause all you have to worry about then is basically fsb and memory.
>>

Dunno about that board, but 31.6 makes me much more comfortable than 39.5. Mind you I had a Quantum that didn't mind 38.3(much) but got flaky at 30 MHz.
 

oldfart

Lifer
Dec 2, 1999
10,207
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My board actually does have extra dividers, but I've never got them to work with any stability. I can use the PLL16 setting for a 158 FSB/29PCI/58 AGP. If I go to 160 FSB I can get 30 PCI/60 AGP. Again, never could get it to work well. System is solid as a rock with the current setup.