I called up Plextor Support and was told that they are going to contact ASUS about this issue and this is very serious. It will absolutely not work! Any opinions?
Brian
Brian
Plextor DMA on ASUS A7V ->Plextor Support Team->Not Possible
- Thread starter brianafischer
- Start date
I agree. It doesn't work properly on my Asus P3B-F with DMA on. Hangs right after the TOC. I think it's a controller issue. Once on a Promise ata100 controller, it works like a charm.
Hardware, he's talking about the DMA checkbox....not what ide mode the drive is running at. DMA allows transfers on cdroms and hard drives to have much less cpu utilization.
Hi,
Using the A7V board and having the same problems. Send an e-mail to plextor explaining my problem. No response. The only way to get it working is switching off DMA support. I suppose it supports DMA mode but for some reason it won't work. Forcing it in the bios DMA results in not being able to see the drive. It is certainly not a controller problem. I hung it to the onboard Promise ATA100 controller. It detects it only as supporting PIO 4 and no DMA. If I force the via drivers to use DMA on this device I get quite erratic behaviour. Lots of reading errors ...
BTW, concerning plextors being OEM drives. I believe this is TRUE. My hardware dealer claims that there are in fact only 3 CDR producers worldwide ! He claims that the only thing that plextor does is writing the firmware of the drive.
Has anyone already had some luck in contacting plextor ?
p.s: I believe that I'm going to run in to their headquarters here in Belgium and ask for a decent response
Using the A7V board and having the same problems. Send an e-mail to plextor explaining my problem. No response. The only way to get it working is switching off DMA support. I suppose it supports DMA mode but for some reason it won't work. Forcing it in the bios DMA results in not being able to see the drive. It is certainly not a controller problem. I hung it to the onboard Promise ATA100 controller. It detects it only as supporting PIO 4 and no DMA. If I force the via drivers to use DMA on this device I get quite erratic behaviour. Lots of reading errors ...
BTW, concerning plextors being OEM drives. I believe this is TRUE. My hardware dealer claims that there are in fact only 3 CDR producers worldwide ! He claims that the only thing that plextor does is writing the firmware of the drive.
Has anyone already had some luck in contacting plextor ?
p.s: I believe that I'm going to run in to their headquarters here in Belgium and ask for a decent response
I just installed it on the Promise ATA100 Controller and it works in DMA Mode 2. I would like to use the ATA66 controller because it would allow me to boot of this Plextor Burner. The CPU Usage with PIO Mode 4 is terribly high, so I can't afford to run it at PIO Mode off the ATA66 controller at this moment.
Brian
Brian
kly1222,
Please, which Plextor are you talking about. I am using Asus P3BF-6 ,
Plextor 12/10/32A, IBM 75GXP, Promise Ultra/100 CC. The only thing currently on my Promise CC is the 75GXP. The 12/10/32A is the only thing on my primary ide on the mobo, it is running in PIO mode 4 and the dma
checkbox is enabled under device manager/properties. I am not having any
problems with the plextor at all.
All I have had time to use my plex for so far is to make backup of
my Win98se disk and make some copies of my fav cds for my car. Am I simply
not having probs cause I aint using the plex for the same things as you, or what ? If we both got same gear, why would one work and not other ? Am I lucky or has the sh@t not hit the fan yet ?
tommyc
Please, which Plextor are you talking about. I am using Asus P3BF-6 ,
Plextor 12/10/32A, IBM 75GXP, Promise Ultra/100 CC. The only thing currently on my Promise CC is the 75GXP. The 12/10/32A is the only thing on my primary ide on the mobo, it is running in PIO mode 4 and the dma
checkbox is enabled under device manager/properties. I am not having any
problems with the plextor at all.
All I have had time to use my plex for so far is to make backup of
my Win98se disk and make some copies of my fav cds for my car. Am I simply
not having probs cause I aint using the plex for the same things as you, or what ? If we both got same gear, why would one work and not other ? Am I lucky or has the sh@t not hit the fan yet ?
tommyc
Tommyc, try doing an DAO audio cd. When I try it on my Asus P3B-F 5 pci 2 isa board it hangs right after the TOC. It works fine when I do data cd's or when I go down to 1x for audio cd's. Once on the promise controller, it works beautifully.
My Plextor 8/4/32 is not running in DMA mode. I assumed the drive doesn't support DMA transfer. It is the only drive I have that is not running in DMA mode. I'm running win2k, and the drive is set to "DMA if available", but it is running in PIO mode. The bios is also set to DMA.
Sorry,
Forgot to mention. I'm talking about the Plextor 12/10/32 drive. I'm using one of the tools (I believe VIADMATOOL) supplied with 4-in-1 driver of VIA to see if DAM is enabled. This tool reports the plex drive as supporting DMA. When installing the drivers this tool reports that DMA is enabled. Disabling DMA support relieves me from the read/write errors. Leaving it enabled ? The drive is not usable at all !
Forgot to mention. I'm talking about the Plextor 12/10/32 drive. I'm using one of the tools (I believe VIADMATOOL) supplied with 4-in-1 driver of VIA to see if DAM is enabled. This tool reports the plex drive as supporting DMA. When installing the drivers this tool reports that DMA is enabled. Disabling DMA support relieves me from the read/write errors. Leaving it enabled ? The drive is not usable at all !
Stealthy,
Assuming the drive isn't defective, this sounds like an Asus-specific problem. I have the Plextor 12/10/32A firmware v1.02 installed as master on the secondardary IDE of an an Abit KT7 (which has been remarkably stable BTW) and it works fine using both the default Win98 and the VIA 4-in-1 4.25 IDE drivers. DMA checkbox is enabled with no problems. Are you able to try the drive on another system board?
Assuming the drive isn't defective, this sounds like an Asus-specific problem. I have the Plextor 12/10/32A firmware v1.02 installed as master on the secondardary IDE of an an Abit KT7 (which has been remarkably stable BTW) and it works fine using both the default Win98 and the VIA 4-in-1 4.25 IDE drivers. DMA checkbox is enabled with no problems. Are you able to try the drive on another system board?
Who has the responsibility of compatability?? Plextor of ASUS. It seems like both companies just point the finger the other way.
Brian
Brian
I'd tend to think it's Asus' problem. If the Plextor works fine on other implementations of the KT133 chipset's IDE controller, then I'd suspect that Asus did something. Doesn't mean that Asus will do anything about it. Remember the P3V4X (VIA Apollo Pro 133A) that had horrible performance with the AGP drivers from VIA no less? Users had to either get old VIA drivers or wait for VIA to update the drivers. Asus didn't do anything, yet they had to have done something non-standard with that board because they were the only one of the Pro 133A boards that had the problem. I'd expect that Plextor didn't figure they'd have to take Asus specifically into account - and frankly, they shouldn't have needed to.
Plextor is supposed to have another firmware update for the 12/10/32A coming out in mid to late September that's supposed to improve CD read performance. Maybe they'll have something that'll fix the Asus problem.
Good luck. This just seems to be another drive controller issue with the A7V. I went with the Abit KT7 (non-RAID) and Promise Ultra100, and I think that this time Abit topped Asus.
Plextor is supposed to have another firmware update for the 12/10/32A coming out in mid to late September that's supposed to improve CD read performance. Maybe they'll have something that'll fix the Asus problem.
Good luck. This just seems to be another drive controller issue with the A7V. I went with the Abit KT7 (non-RAID) and Promise Ultra100, and I think that this time Abit topped Asus.
Im running a Plextor 10/12/32 attached to an Asus A7V ver 1.03 bios 1004, Win98SE, VIA 4in1 drivers 4.24a with the DMA check box enabled, and have experienced zero problems. The bios indicates the drive is PIO mode 4, it is installed on the ATA66 primary as the master all by itself.
As I see other people having no problems on their MB (not A7V) it seems to me that this is an ASUS problem. I took this issue up with plextor support but the answer was not satisfactory (workaround) at this point. I will try to get some answers of ASUS support. This start to be quite annoying. It seems that I could have better been waiting for the ABIT board
ONCE AGAIN THE PLEXOR IS A ATAPI PIO-4 DEVICE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Forget your I am running on UDMA crap!
Thats from plextor
12X write (1800KB/s)
10X rewrite (1500KB/s)
14X-32X read CAV (2100KB/s - 4800KB/s)
READ HERE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ATAPI Interface (PIO Mode-4)
STOP HERE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
BURN-Proof Technology (Buffer Under Run Proof)
Access Time 150 ms
2MB Buffer
Capable of reading and writing CD TEXT information
Compatible with:
Windows, Windows 95, Windows 98, Windows NT, Windows 2000
MultiRead Compatible
Supports SPDIF (Digital Audio Output)
High Quality Digital Audio Extraction
One-Year Full Warranty (parts, labor)
Forget your I am running on UDMA crap!
Thats from plextor
12X write (1800KB/s)
10X rewrite (1500KB/s)
14X-32X read CAV (2100KB/s - 4800KB/s)
READ HERE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ATAPI Interface (PIO Mode-4)
STOP HERE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
BURN-Proof Technology (Buffer Under Run Proof)
Access Time 150 ms
2MB Buffer
Capable of reading and writing CD TEXT information
Compatible with:
Windows, Windows 95, Windows 98, Windows NT, Windows 2000
MultiRead Compatible
Supports SPDIF (Digital Audio Output)
High Quality Digital Audio Extraction
One-Year Full Warranty (parts, labor)
Yup, while the KT7's onboard IDE identifies the Plextor 12/10/32A as a PIO 4 device, the Promise Ultra100 identifies it as a DMA 2 device. Also, if it didn't support DMA then the IDE controller's DMA mode wouldn't make any difference, and as anyone who's tried both DMA and non-DMA knows, DMA makes an obvious performance difference.
Engineer
Elite Member
- Oct 9, 1999
- 39,230
- 701
- 126
I've got a Plextor 8/4/32 on the Asus A7V board version 1.01.P and the drive will not function correctly on ATA66 with the DMA box checked...
CPU usage under NERO jumped from 7% on my Abit BE6 Board with 500 Celeron to 25% with this board and a 1GHz Tbird....That's a big jump in CPU use...
Maybe I'll try to install the ATA100 Drivers and move it to that controller...
CPU usage under NERO jumped from 7% on my Abit BE6 Board with 500 Celeron to 25% with this board and a 1GHz Tbird....That's a big jump in CPU use...
Maybe I'll try to install the ATA100 Drivers and move it to that controller...
DMA Mode 2 =16.6 MBS=PIO Mode 4 the diffence is that DMA Uses less CPU Than PIO. ALL PIO Mode 4 Drives I Have seen can do DMA mode 2 as the only difference is that the controller writes driectly to memory instead of pummping it to the CPU ( Which sends it to memory )
Dazed
Dazed
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