on 9/22/01 7:09 PM, PCI PowerMacs at [EMAIL PROTECTED] wrote: <snip> > I got some cheap memory at Other World Computing (OWC, not on the above > list!), though I see it's cheaper at velocityupgrades.com: $29 vs. $39, I > believe. OWC calls their PCI memory "128MB 168 Pin Mac 5V DIMM 60NS 4K FPM > non-EDO (2K per bank, 16x4 based, converted)" - so what's the deal on the > "converted" aspect? They say it's 100% compatible and offers the same > performance, though it was $5 cheaper. They do offer a solid lifetime > warranty, so I'm not too worried (and unlike others, I've always had free > pickup and shipping back to OWC for any defective parts). My first order ever with OWC was for these very same memory modules for my PM7500. I ordered two as well as a 512K cache module. One of the memory modules and the cache worked fine. The other 128mb module never worked no matter what slot I put it in. In a previous response on this list from Philip Stortz to my inquiry on these 16x4 modules: >Message-ID: <[EMAIL PROTECTED]> >Date: Wed, 12 Sep 2001 23:10:05 -0600 >From: Philip Stortz <[EMAIL PROTECTED]> >Subject: Re: Memory upgrade on 7500 >yes, it was probably a bad idea, the chips may draw larger current >spikes, and the filter caps on the logic board may not be able to >provide stable enough power under these conditions. the other problem, >depending on the design, is the load (i.e. how much signal power it >takes) on the address lines. i wouldn't give up completely however, >they may work fine if you reset the cuda and zap the pram, some macs can >be funny that way. especially since you upgraded the cache i would >definitely zap the pram, i've seen this cause problems on a 7100 (not a >pci mac, but still a mac). sometimes part of the mac os knows more than >other parts it seems, which of course causes problems. in any case, i'd >definitely run techtool or another diagnostic even if the new ram >appears to work. if it's marginal a change in temperature could be >enough to make a difference. I hope this info helps some. I sent back the bad module yesterday via priority mail (dont know if I'll be reimbursed for shipping) Terry -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/pci-powermacs%40mail.maclaunch.com/> Using a Macintosh? Get free email and more at Applelinks! <http://www.applelinks.com>
