brh@uncecs.edu (Bobby R. Harris) (03/13/90)
i am in the process of putting together a 386-25Mhz machine. i this point i have not selected a motherboard and would like to get some suggestions or comments from net users who have knowledge of the following boards: 1)mylex mws386-25Mhz, 64k cache, award bios, 2 yr warrenty, full sized board with 8Meg onboard capability. SI=29. 2)micronics 386-25Mhz, 32k cache, award, 1 yr warr, full size, 0M onboard - 8 Meg capability on 32 bit card. SI=31? does either board have any significance advantage over the other? why does micronics appear to have a faster SI rating. what about memory onboard vs the 32bit card? it it makes any difference i am thinking of using: 1)seiko 1440 with orchid pro designer plus 2)scsi or esdi drive/controller by the way mylex is 200-300.00 cheaper than micronics in most ads i have seen. for what it is worth - Compuadd uses the micronics board. any help will be greatly appreciated. bobby harris brh@ecsvax.bitnet brh@ecsvax.uucp voice 919-787-8233
jacksond@cica.cica.indiana.edu (Richard Jackson ) (03/13/90)
In article <1990Mar12.204511.11366@uncecs.edu> brh@uncecs.edu (Bobby R. Harris) writes: > 1)mylex mws386-25Mhz, 64k cache, award bios, 2 yr warrenty, > full sized board with 8Meg onboard capability. SI=29. > 2)micronics 386-25Mhz, 32k cache, award, 1 yr warr, full size, > 0M onboard - 8 Meg capability on 32 bit card. SI=31? Just to throw caution to the wind. In an article I read (PC Mag?) within the last 9 months or so. AMI motherboards were superior to mylex or micronics in processing speed. Also, I'd go with the SCSI instead of the ESDI interface. It gives you more options and connectivity.
marshall@wind55.seri.gov (Marshall L. Buhl) (03/14/90)
jacksond@cica.cica.indiana.edu (Richard Jackson ) writes: >Also, I'd go with the SCSI instead of the ESDI interface. It gives you more >options and connectivity. Before you commit to SCSI, make sure that the applications you will want to run will support SCSI. For instance, Microsoft will not guarantee that Windows will work with SCSI. Also, not all SCSIs are alike. Make sure that the peripherals you want will work with the SCSI host adaptor you choose. I suggest you avoid SCSI until the SCSI manufacturers come to some agreement about standards. Unless you are much luckier than I, the standard they settle on will differ from the one you buy. Just MHO, -- Marshall L. Buhl, Jr. EMAIL: marshall@wind55.seri.gov Senior Computer Engineer VOICE: (303)231-1014 Wind Research Branch 1617 Cole Blvd., Golden, CO 80401-3393 Solar Energy Research Institute Solar - safe energy for a healthy future
emv@math.lsa.umich.edu (Edward Vielmetti) (03/14/90)
a reminder that there's plenty of good scsi info in the new group comp.periphs.scsi might take a look. --Ed emv@math.lsa.umich.edu
leoh@hardy.hdw.csd.harris.com (Leo Hinds) (03/16/90)
In article <1990Mar13.194214.10848@seri.gov> marshall@wind55.seri.gov (Marshall L. Buhl) writes: > <text deleted> Unless you are much luckier than I, the >standard they settle on will differ from the one you buy. Sounds like you have been burned ... please let the net (or if you prefer email me) as I am considering a purchase of SCSI drives from fujitsu at cost ... but maybe not ... leoh@hdw.csd.harris.com Leo Hinds (305)973-5229 Gfx ... gfx ... :-) whfg orpnhfr V "ebg"grq zl fvtangher svyr lbh guvax V nz n creireg ?!!!!!!? ... znlor arkg gvzr
richc@vaxwaller.UUCP (Rich Commins) (03/20/90)
In article <1990Mar12.204511.11366@uncecs.edu>, brh@uncecs.edu (Bobby R. Harris) writes: > following boards: > 1)mylex mws386-25Mhz, 64k cache, award bios, 2 yr warrenty, > full sized board with 8Meg onboard capability. SI=29. ^^^^^^ I own a MI386-20 Mylex motherboard and with the cache on, the board does a consistant SI=31 speed. Sometimes the cache misses and the board comes in at SI=23 but mostly runs at SI=31. I would think that a 25 MHz board should run at least 25% faster. -- -- Rich Commins (415)939-2400 \ /\ Varian Instruments, 2700 Mitchell Drive, Walnut Creek, CA 94598 \/--\ {ptsfa,lll-crg,zehntel,dual,amd,fortune,ista,rtech,csi,normac}varian!richc
jmerrill@jarthur.Claremont.EDU (Confusion Reigns) (03/21/90)
In article <4269@vaxwaller.UUCP> richc@vaxwaller.UUCP (Rich Commins) writes: > I own a MI386-20 Mylex motherboard and with the cache on, the board > does a consistant SI=31 speed. Sometimes the cache misses and the > board comes in at SI=23 but mostly runs at SI=31. I would think that > a 25 MHz board should run at least 25% faster. Strange...My MI386-20 with 64K SRAM cache comes in consistently at SI 23. Quarterdeck's Manifest program rates my memory at: First Meg Speed PC/XT Memory Area K/Sec Index Memory Cache 6279 12.1 0000 - 9FFF 4995 9.6 (Conventional RAM) A000 - B7FF 1050 2.0 (VGA Graphics & Mono) B800 - BFFF 859 1.7 (VGA Color Text) C000 - C5FF 4978 9.6 (Shadowed Video ROM) C600 - C7FF 2693 5.2 (Unshadowed Video ROM) C800 - C8FF 5013 9.7 (Shadowed Disk ROM) C900 - CAFF 1580 3.1 (Unshadowed Disk ROM) CB00 - F3FF 4991 9.6 (High RAM and Page Frame) F400 - F7FF 2693 5.2 (Page Frame) F800 - FFFF 5008 9.7 (Shadowed BIOS ROM) HMA 5013 9.7 (Cut and Paste between windows is handy...) Is your cache faster than mine?