Asus A8R-MVP: Mainstream Rocket
by Wesley Fink on November 23, 2005 1:15 AM EST- Posted in
- Motherboards
Basic Features: Asus A8R-MVP
While the BIOS adjustments are not as extensive as the Asus A8N32-SLI Deluxe or the DFI RDX200, most of the adjustments needed for overclocking control are definitely here.
| Asus A8R-MVP | |
| CPU Interface | Socket 939 Athlon 64 |
| Chipset | ATI RD480 Northbridge - ULi M1575 Southbridge |
| Bus Speeds | 200 to 400MHz in 1MHz Increments |
| Memory Speeds | DDR200, 266, 333, 400 (433, 466, 500 with Rev. E AMD) |
| PCIe Speeds | 100 to 150MHz in 1MHz Increments |
| PCI/AGP | Fixed at 33/66 |
| Core Voltage | Auto, 0.8V to 1.45V in 0.025V increments PLUS 0.2V with vCore Over-voltage (Maximum vCore 1.65V) |
| CPU Clock Multiplier | 4X-25.5X in 0.5X increments |
| DRAM Voltage | Auto, 2.65V to 3.2V in .05V to .1V increments |
| HyperTransport Frequency | 1000MHz (1GHz) |
| HyperTransport Multiplier | Auto, 1X to 5X |
| PCI Express Voltage | 1.2V, 1.3V, 1.4V, 1.5V |
| Southbridge Overvoltage | Enabled (+0.1v) |
| PEG Link Mode | Auto, Disabled, Normal, Fast, Faster |
| PEG Bugger Length | Auto, Short, Long, Longer, Longest |
| AI Overclocking | Manual, Auto*, Standard*, Overclock Profile *Set CPU Frequency and Other Parameters Automatically |
| Overclock Profile Options | 3%, 5%, 10%, 15%, 20%, 30% |
| Memory Slots | Four 184-pin DDR DIMM Slots Dual-Channel Configuration Regular Unbuffered or ECC Memory to 4GB Total |
| Expansion Slots | 2 PCIe x16 1 PCIe x1 3 PCI Slots 1 Asus MVP Switch Card in Secondary (Black) PCIe Slot |
| Onboard SATA/RAID | 4 SATA2 Drives by ULi M1575 (RAID 0, 1, 1+0, 5, JBOD) |
| Onboard IDE/IDE RAID | Two Standard ATA133/100/66 (4 drives) |
| Onboard USB 2.0/IEEE-1394 | 8 USB 2.0 ports supported by ULi M1575 2 1394 Firewire by TI 1394 |
| Onboard LAN | 1 Gigabit Ethernet PCI Ethernet by Marvel Yukon 88E8001 |
| Onboard Audio | Azalia HD Audio by ADI AD1986A Soundmax codec |
| BIOS Revision | AMI 0037 (11/17/05) Beta |
While the BIOS adjustments are not as extensive as the Asus A8N32-SLI Deluxe or the DFI RDX200, most of the adjustments needed for overclocking control are definitely here.
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AllanLim - Sunday, December 11, 2005 - link
What I should have said is that the BIOS memory option maxes out at 200, so why is there a need to raise memory timings to 3-4-3-8 when at 325x9.Wesley Fink - Sunday, December 11, 2005 - link
200 is the starting point (400DDR) in BIOS, and memory clock floats with the CPU frequency. Thus at 325 Clock Speed the memory set at 200 is running DDR650. Memory floats with clock frequency on almost every board we test.If you start memory at 166 (333), it would run at about 270 (DDR540) with the Clock Frequency set to 325. You may want to do some reading or ask some questions in our Forums to better understand how this works.
AllanLim - Sunday, December 11, 2005 - link
Got it, checked out Zebo's article in forums, my bad for not checking this out earlier. Thus begins my foray into AMD64 overclocking.Many thnx for help.
EnlightenedOne - Monday, December 12, 2005 - link
K great. Thanks for the quick reply wes :DFinal question I promise, lol.
At the 325 x 9 setting, how stable do you think the CPU would be @ load? For example, I'm going to be playing alot of BF2 and Quake 4 with this new set up. I was wondering if it will be atleast 6 hours stable in those games at load.
What do you think?
EnlightenedOne - Monday, December 12, 2005 - link
I'm also trying to see if I can tighten those dram timings a bit by adding more voltage. What are the tighest/stable that you got with a higher ram voltage?EnlightenedOne - Thursday, December 8, 2005 - link
Hey Wesley, Great Review!I was wondering a few things with this motherboard and the setup.
First, do you think the clawhammer 4000+ would overclock better than the Diego?
What voltage are you feeding your ram to reach such a high frequency?
Do you suggest using the 246 x 12 or the 325 x 9 set up for games?
Finally, what voltage are you feeding the PCIe slot? Also, why haven't you upped the voltage to your cpu core to maintain stability and go beyond 2 days? :)
Wesley Fink - Friday, December 9, 2005 - link
Our San Diego clocks almost exactly the same as the Clawhammer 4000+, but it runs cooler. I would choose San Diego. We tested both on this board, as we have done for the last few reviews, found performance very similar (we had a fantastic Clawhammer that may not have been typical), and moved to the 90nm CPU for future reviews.The OCZ TCCD RAM was only getting 2.75V-2.8V. My pairs really don't like or need more voltage to reach high overclocks.
Which you use depends on your RAM. In most cases you can get tighter timings at 246 than at 325. The best speed is a balance of highest RAM clock consistent with tightest timings. There is no cut-and-dried answer to your question.
I did not overclock PCIe, but the chipset and/or PCIe sometimes reauires a small voltage boost at extreme overclocks.
If you check the OC page I am using 1.45V vCore which is a modest OC of .05V from the default 1.4V. It didn't reboot after 2 days, we had to move on to other reviews. It might still be running fine at 325x9 for all we know.
EnlightenedOne - Sunday, December 11, 2005 - link
Awesome. 1 Quick last simple question. Did you slowly up the FSB through the bios and reboot, then up it again? Or did you use a windows based overclocker program that asus provided? If using the reboot method.. how long did you let it run before rebooting and upping the fsb a little more. If windows method, how long did you wait before upping the FSB little by little? Thanks :DWesley Fink - Sunday, December 11, 2005 - link
I rebooted and upped the frequency a bit, went into windows, then rebooted and upped frequency again.abakshi - Wednesday, December 7, 2005 - link
Hmm...this is looking pretty good. But GigE performance is pretty important for me -- if I get a separate PCI-E 1x GigE card, can I match the throughput of the integrated PCI-E chipsets, like the Marvel, etc.?Any recommendations for a card? From a quick look around, I've seen an expensive D-Link ($80), some assorted others (SysKonnect, etc.) at varying ranges. Any benches of these for reference?
And if I put in two X1800XT's, I wouldn't be able to fit a 1x card in between, right? What about with single-slot cards like the X1800XL?